prosody
b95771171439
util-src/crypto.c

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util-src/crypto.c @ 12820:b95771171439

sessionmanager: Pluck sasl_handler from old session when resuming (fixes #1785)
author Matthew Wild <mwild1@gmail.com>
date Thu, 29 Dec 2022 16:23:08 +0000
parent 12735:445f7bd6ffc4
child 12837:d3ae47d8a7a7
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1 /* Prosody IM
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2 -- Copyright (C) 2022 Matthew Wild
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3 --
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4 -- This project is MIT/X11 licensed. Please see the
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5 -- COPYING file in the source package for more information.
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6 --
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7 */
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8
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9 /*
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10 * crypto.c
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11 * Lua library for cryptographic operations using OpenSSL
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12 */
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13
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14 #include <string.h>
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15 #include <stdlib.h>
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16
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17 #ifdef _MSC_VER
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18 typedef unsigned __int32 uint32_t;
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19 #else
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20 #include <inttypes.h>
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21 #endif
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22
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23 #include "lua.h"
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24 #include "lauxlib.h"
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25 #include <openssl/crypto.h>
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26 #include <openssl/ecdsa.h>
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27 #include <openssl/err.h>
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28 #include <openssl/evp.h>
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29 #include <openssl/obj_mac.h>
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30 #include <openssl/pem.h>
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31
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32 #if (LUA_VERSION_NUM == 501)
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33 #define luaL_setfuncs(L, R, N) luaL_register(L, NULL, R)
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34 #endif
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35
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36 /* The max size of an encoded 'R' or 'S' value. P-521 = 521 bits = 66 bytes */
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37 #define MAX_ECDSA_SIG_INT_BYTES 66
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38
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39 #include "managed_pointer.h"
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40
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41 #define PKEY_MT_TAG "util.crypto key"
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42
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43 static BIO* new_memory_BIO() {
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44 return BIO_new(BIO_s_mem());
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45 }
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46
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47 MANAGED_POINTER_ALLOCATOR(new_managed_EVP_MD_CTX, EVP_MD_CTX*, EVP_MD_CTX_new, EVP_MD_CTX_free)
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48 MANAGED_POINTER_ALLOCATOR(new_managed_BIO_s_mem, BIO*, new_memory_BIO, BIO_free)
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49 MANAGED_POINTER_ALLOCATOR(new_managed_EVP_CIPHER_CTX, EVP_CIPHER_CTX*, EVP_CIPHER_CTX_new, EVP_CIPHER_CTX_free)
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50
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51 #define CRYPTO_KEY_TYPE_ERR "unexpected key type: got '%s', expected '%s'"
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52
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53 static EVP_PKEY* pkey_from_arg(lua_State *L, int idx, const int type, const int require_private) {
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54 EVP_PKEY *pkey = *(EVP_PKEY**)luaL_checkudata(L, idx, PKEY_MT_TAG);
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55 int got_type;
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56 if(type || require_private) {
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57 lua_getuservalue(L, idx);
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58 if(type != 0) {
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59 lua_getfield(L, -1, "type");
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60 got_type = lua_tointeger(L, -1);
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61 if(got_type != type) {
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62 const char *got_key_type_name = OBJ_nid2sn(got_type);
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63 const char *want_key_type_name = OBJ_nid2sn(type);
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64 lua_pushfstring(L, CRYPTO_KEY_TYPE_ERR, got_key_type_name, want_key_type_name);
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65 luaL_argerror(L, idx, lua_tostring(L, -1));
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66 }
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67 lua_pop(L, 1);
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68 }
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69 if(require_private != 0) {
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70 lua_getfield(L, -1, "private");
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71 if(lua_toboolean(L, -1) != 1) {
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72 luaL_argerror(L, idx, "private key expected, got public key only");
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73 }
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74 lua_pop(L, 1);
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75 }
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76 lua_pop(L, 1);
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77 }
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78 return pkey;
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79 }
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80
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81 static int Lpkey_finalizer(lua_State *L) {
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82 EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0);
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83 EVP_PKEY_free(pkey);
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84 return 0;
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85 }
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86
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87 static int Lpkey_meth_get_type(lua_State *L) {
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88 EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0);
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89
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90 int key_type = EVP_PKEY_id(pkey);
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91 lua_pushstring(L, OBJ_nid2sn(key_type));
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92 return 1;
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93 }
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94
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95 static int base_evp_sign(lua_State *L, const int key_type, const EVP_MD *digest_type) {
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96 EVP_PKEY *pkey = pkey_from_arg(L, 1, (key_type!=NID_rsassaPss)?key_type:NID_rsaEncryption, 1);
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97 luaL_Buffer sigbuf;
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98
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99 size_t msg_len;
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100 const unsigned char* msg = (unsigned char*)lua_tolstring(L, 2, &msg_len);
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101
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102 size_t sig_len;
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103 unsigned char *sig = NULL;
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104 EVP_MD_CTX *md_ctx = new_managed_EVP_MD_CTX(L);
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105
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106 if(EVP_DigestSignInit(md_ctx, NULL, digest_type, NULL, pkey) != 1) {
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107 lua_pushnil(L);
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108 return 1;
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109 }
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110 if(key_type == NID_rsassaPss) {
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111 EVP_PKEY_CTX_set_rsa_padding(EVP_MD_CTX_pkey_ctx(md_ctx), RSA_PKCS1_PSS_PADDING);
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112 }
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113 if(EVP_DigestSign(md_ctx, NULL, &sig_len, msg, msg_len) != 1) {
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114 lua_pushnil(L);
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115 return 1;
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116 }
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117
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118 // COMPAT w/ Lua 5.1
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119 luaL_buffinit(L, &sigbuf);
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120 sig = memset(luaL_prepbuffer(&sigbuf), 0, sig_len);
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121
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122 if(EVP_DigestSign(md_ctx, sig, &sig_len, msg, msg_len) != 1) {
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123 lua_pushnil(L);
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124 }
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125 else {
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126 luaL_addsize(&sigbuf, sig_len);
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127 luaL_pushresult(&sigbuf);
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128 return 1;
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129 }
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130
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diff changeset
131 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
132 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
133
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
134 static int base_evp_verify(lua_State *L, const int key_type, const EVP_MD *digest_type) {
12697
916871447b2f util.crypto: Add support for RSA signatures (PKCS1-v1.5 + PSS)
Matthew Wild <mwild1@gmail.com>
parents: 12693
diff changeset
135 EVP_PKEY *pkey = pkey_from_arg(L, 1, (key_type!=NID_rsassaPss)?key_type:NID_rsaEncryption, 0);
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
136
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
137 size_t msg_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
138 const unsigned char *msg = (unsigned char*)luaL_checklstring(L, 2, &msg_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
139
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
140 size_t sig_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
141 const unsigned char *sig = (unsigned char*)luaL_checklstring(L, 3, &sig_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
142
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
143 EVP_MD_CTX *md_ctx = EVP_MD_CTX_new();
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
144
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
145 if(EVP_DigestVerifyInit(md_ctx, NULL, digest_type, NULL, pkey) != 1) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
146 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
147 goto cleanup;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
148 }
12697
916871447b2f util.crypto: Add support for RSA signatures (PKCS1-v1.5 + PSS)
Matthew Wild <mwild1@gmail.com>
parents: 12693
diff changeset
149 if(key_type == NID_rsassaPss) {
916871447b2f util.crypto: Add support for RSA signatures (PKCS1-v1.5 + PSS)
Matthew Wild <mwild1@gmail.com>
parents: 12693
diff changeset
150 EVP_PKEY_CTX_set_rsa_padding(EVP_MD_CTX_pkey_ctx(md_ctx), RSA_PKCS1_PSS_PADDING);
916871447b2f util.crypto: Add support for RSA signatures (PKCS1-v1.5 + PSS)
Matthew Wild <mwild1@gmail.com>
parents: 12693
diff changeset
151 }
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
152 int result = EVP_DigestVerify(md_ctx, sig, sig_len, msg, msg_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
153 if(result == 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
154 lua_pushboolean(L, 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
155 } else if(result != 1) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
156 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
157 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
158 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
159 lua_pushboolean(L, 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
160 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
161 cleanup:
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
162 EVP_MD_CTX_free(md_ctx);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
163 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
164 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
165
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
166 static int Lpkey_meth_public_pem(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
167 char *data;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
168 size_t bytes;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
169 EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
170 BIO *bio = new_managed_BIO_s_mem(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
171 if(PEM_write_bio_PUBKEY(bio, pkey)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
172 bytes = BIO_get_mem_data(bio, &data);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
173 if (bytes > 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
174 lua_pushlstring(L, data, bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
175 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
176 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
177 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
178 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
179 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
180 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
181 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
182 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
183 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
184 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
185
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
186 static int Lpkey_meth_private_pem(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
187 char *data;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
188 size_t bytes;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
189 EVP_PKEY *pkey = pkey_from_arg(L, 1, 0, 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
190 BIO *bio = new_managed_BIO_s_mem(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
191
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
192 if(PEM_write_bio_PrivateKey(bio, pkey, NULL, NULL, 0, NULL, NULL)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
193 bytes = BIO_get_mem_data(bio, &data);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
194 if (bytes > 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
195 lua_pushlstring(L, data, bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
196 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
197 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
198 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
199 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
200 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
201 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
202 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
203 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
204 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
205 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
206
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
207 static int push_pkey(lua_State *L, EVP_PKEY *pkey, const int type, const int privkey) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
208 EVP_PKEY **ud = lua_newuserdata(L, sizeof(EVP_PKEY*));
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
209 *ud = pkey;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
210 luaL_newmetatable(L, PKEY_MT_TAG);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
211 lua_setmetatable(L, -2);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
212
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
213 /* Set some info about the key and attach it as a user value */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
214 lua_newtable(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
215 if(type != 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
216 lua_pushinteger(L, type);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
217 lua_setfield(L, -2, "type");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
218 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
219 if(privkey != 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
220 lua_pushboolean(L, 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
221 lua_setfield(L, -2, "private");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
222 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
223 lua_setuservalue(L, -2);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
224 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
225 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
226
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
227 static int Lgenerate_ed25519_keypair(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
228 EVP_PKEY *pkey = NULL;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
229 EVP_PKEY_CTX *pctx = EVP_PKEY_CTX_new_id(EVP_PKEY_ED25519, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
230
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
231 /* Generate key */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
232 EVP_PKEY_keygen_init(pctx);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
233 EVP_PKEY_keygen(pctx, &pkey);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
234 EVP_PKEY_CTX_free(pctx);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
235
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
236 push_pkey(L, pkey, NID_ED25519, 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
237 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
238 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
239
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
240 static int Limport_private_pem(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
241 EVP_PKEY *pkey = NULL;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
242
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
243 size_t privkey_bytes;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
244 const char* privkey_data;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
245 BIO *bio = new_managed_BIO_s_mem(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
246
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
247 privkey_data = luaL_checklstring(L, 1, &privkey_bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
248 BIO_write(bio, privkey_data, privkey_bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
249 pkey = PEM_read_bio_PrivateKey(bio, NULL, NULL, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
250 if (pkey) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
251 push_pkey(L, pkey, EVP_PKEY_id(pkey), 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
252 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
253 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
254 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
255 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
256
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
257 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
258 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
259
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
260 static int Limport_public_pem(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
261 EVP_PKEY *pkey = NULL;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
262
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
263 size_t pubkey_bytes;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
264 const char* pubkey_data;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
265 BIO *bio = new_managed_BIO_s_mem(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
266
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
267 pubkey_data = luaL_checklstring(L, 1, &pubkey_bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
268 BIO_write(bio, pubkey_data, pubkey_bytes);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
269 pkey = PEM_read_bio_PUBKEY(bio, NULL, NULL, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
270 if (pkey) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
271 push_pkey(L, pkey, EVP_PKEY_id(pkey), 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
272 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
273 else {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
274 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
275 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
276
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
277 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
278 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
279
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
280 static int Led25519_sign(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
281 return base_evp_sign(L, NID_ED25519, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
282 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
283
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
284 static int Led25519_verify(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
285 return base_evp_verify(L, NID_ED25519, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
286 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
287
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
288 /* gcm_encrypt(key, iv, plaintext) */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
289 static int Laes_gcm_encrypt(lua_State *L, const EVP_CIPHER *cipher, const unsigned char expected_key_len) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
290 EVP_CIPHER_CTX *ctx;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
291 luaL_Buffer ciphertext_buffer;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
292
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
293 size_t key_len, iv_len, plaintext_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
294 int ciphertext_len, final_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
295
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
296 const unsigned char *key = (unsigned char*)luaL_checklstring(L, 1, &key_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
297 const unsigned char *iv = (unsigned char*)luaL_checklstring(L, 2, &iv_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
298 const unsigned char *plaintext = (unsigned char*)luaL_checklstring(L, 3, &plaintext_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
299
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
300 if(key_len != expected_key_len) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
301 return luaL_error(L, "key must be %d bytes", expected_key_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
302 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
303 luaL_argcheck(L, iv_len == 12, 2, "iv must be 12 bytes");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
304 if(lua_gettop(L) > 3) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
305 return luaL_error(L, "Expected 3 arguments, got %d", lua_gettop(L));
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
306 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
307
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
308 // Create and initialise the context
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
309 ctx = new_managed_EVP_CIPHER_CTX(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
310
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
311 // Initialise the encryption operation
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
312 if(1 != EVP_EncryptInit_ex(ctx, cipher, NULL, NULL, NULL)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
313 return luaL_error(L, "Error while initializing encryption engine");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
314 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
315
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
316 // Initialise key and IV
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
317 if(1 != EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
318 return luaL_error(L, "Error while initializing key/iv");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
319 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
320
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
321 luaL_buffinit(L, &ciphertext_buffer);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
322 unsigned char *ciphertext = (unsigned char*)luaL_prepbuffsize(&ciphertext_buffer, plaintext_len+16);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
323
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
324 if(1 != EVP_EncryptUpdate(ctx, ciphertext, &ciphertext_len, plaintext, plaintext_len)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
325 return luaL_error(L, "Error while encrypting data");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
326 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
327
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
328 /*
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
329 * Finalise the encryption. Normally ciphertext bytes may be written at
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
330 * this stage, but this does not occur in GCM mode
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
331 */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
332 if(1 != EVP_EncryptFinal_ex(ctx, ciphertext + ciphertext_len, &final_len)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
333 return luaL_error(L, "Error while encrypting final data");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
334 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
335 if(final_len != 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
336 return luaL_error(L, "Non-zero final data");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
337 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
338
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
339 /* Get the tag */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
340 if(1 != EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, 16, ciphertext + ciphertext_len)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
341 return luaL_error(L, "Unable to read AEAD tag of encrypted data");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
342 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
343
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
344 luaL_addsize(&ciphertext_buffer, ciphertext_len + 16);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
345 luaL_pushresult(&ciphertext_buffer);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
346
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
347 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
348 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
349
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
350 static int Laes_128_gcm_encrypt(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
351 return Laes_gcm_encrypt(L, EVP_aes_128_gcm(), 16);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
352 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
353
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
354 static int Laes_256_gcm_encrypt(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
355 return Laes_gcm_encrypt(L, EVP_aes_256_gcm(), 32);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
356 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
357
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
358 /* gcm_decrypt(key, iv, ciphertext) */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
359 static int Laes_gcm_decrypt(lua_State *L, const EVP_CIPHER *cipher, const unsigned char expected_key_len) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
360 EVP_CIPHER_CTX *ctx;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
361 luaL_Buffer plaintext_buffer;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
362
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
363 size_t key_len, iv_len, ciphertext_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
364 int plaintext_len, final_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
365
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
366 const unsigned char *key = (unsigned char*)luaL_checklstring(L, 1, &key_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
367 const unsigned char *iv = (unsigned char*)luaL_checklstring(L, 2, &iv_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
368 const unsigned char *ciphertext = (unsigned char*)luaL_checklstring(L, 3, &ciphertext_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
369
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
370 if(key_len != expected_key_len) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
371 return luaL_error(L, "key must be %d bytes", expected_key_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
372 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
373 luaL_argcheck(L, iv_len == 12, 2, "iv must be 12 bytes");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
374 luaL_argcheck(L, ciphertext_len > 16, 3, "ciphertext must be at least 16 bytes (including tag)");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
375 if(lua_gettop(L) > 3) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
376 return luaL_error(L, "Expected 3 arguments, got %d", lua_gettop(L));
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
377 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
378
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
379 /* Create and initialise the context */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
380 ctx = new_managed_EVP_CIPHER_CTX(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
381
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
382 /* Initialise the decryption operation. */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
383 if(!EVP_DecryptInit_ex(ctx, cipher, NULL, NULL, NULL)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
384 return luaL_error(L, "Error while initializing decryption engine");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
385 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
386
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
387 /* Initialise key and IV */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
388 if(!EVP_DecryptInit_ex(ctx, NULL, NULL, key, iv)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
389 return luaL_error(L, "Error while initializing key/iv");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
390 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
391
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
392 luaL_buffinit(L, &plaintext_buffer);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
393 unsigned char *plaintext = (unsigned char*)luaL_prepbuffsize(&plaintext_buffer, ciphertext_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
394
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
395 /*
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
396 * Provide the message to be decrypted, and obtain the plaintext output.
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
397 * EVP_DecryptUpdate can be called multiple times if necessary
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
398 */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
399 if(!EVP_DecryptUpdate(ctx, plaintext, &plaintext_len, ciphertext, ciphertext_len-16)) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
400 return luaL_error(L, "Error while decrypting data");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
401 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
402
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
403 /* Set expected tag value. Works in OpenSSL 1.0.1d and later */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
404 if(!EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, 16, (unsigned char*)ciphertext + (ciphertext_len-16))) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
405 return luaL_error(L, "Error while processing authentication tag");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
406 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
407
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
408 /*
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
409 * Finalise the decryption. A positive return value indicates success,
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
410 * anything else is a failure - the plaintext is not trustworthy.
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
411 */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
412 int ret = EVP_DecryptFinal_ex(ctx, plaintext + plaintext_len, &final_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
413
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
414 if(ret <= 0) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
415 /* Verify failed */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
416 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
417 lua_pushliteral(L, "verify-failed");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
418 return 2;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
419 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
420
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
421 luaL_addsize(&plaintext_buffer, plaintext_len + final_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
422 luaL_pushresult(&plaintext_buffer);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
423 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
424 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
425
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
426 static int Laes_128_gcm_decrypt(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
427 return Laes_gcm_decrypt(L, EVP_aes_128_gcm(), 16);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
428 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
429
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
430 static int Laes_256_gcm_decrypt(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
431 return Laes_gcm_decrypt(L, EVP_aes_256_gcm(), 32);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
432 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
433
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
434 /* r, s = parse_ecdsa_sig(sig_der) */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
435 static int Lparse_ecdsa_signature(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
436 ECDSA_SIG *sig;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
437 size_t sig_der_len;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
438 const unsigned char *sig_der = (unsigned char*)luaL_checklstring(L, 1, &sig_der_len);
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
439 const size_t sig_int_bytes = luaL_checkinteger(L, 2);
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
440 const BIGNUM *r, *s;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
441 int rlen, slen;
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
442 unsigned char rb[MAX_ECDSA_SIG_INT_BYTES];
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
443 unsigned char sb[MAX_ECDSA_SIG_INT_BYTES];
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
444
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
445 if(sig_int_bytes > MAX_ECDSA_SIG_INT_BYTES) {
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
446 luaL_error(L, "requested signature size exceeds supported limit");
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
447 }
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
448
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
449 sig = d2i_ECDSA_SIG(NULL, &sig_der, sig_der_len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
450
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
451 if(sig == NULL) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
452 lua_pushnil(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
453 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
454 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
455
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
456 ECDSA_SIG_get0(sig, &r, &s);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
457
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
458 rlen = BN_bn2binpad(r, rb, sig_int_bytes);
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
459 slen = BN_bn2binpad(s, sb, sig_int_bytes);
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
460
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
461 if (rlen == -1 || slen == -1) {
12714
82bca7191f13 util.crypto: Use stack space buffers
Kim Alvefur <zash@zash.se>
parents: 12702
diff changeset
462 ECDSA_SIG_free(sig);
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
463 luaL_error(L, "encoded integers exceed requested size");
12714
82bca7191f13 util.crypto: Use stack space buffers
Kim Alvefur <zash@zash.se>
parents: 12702
diff changeset
464 }
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
465
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
466 ECDSA_SIG_free(sig);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
467
12714
82bca7191f13 util.crypto: Use stack space buffers
Kim Alvefur <zash@zash.se>
parents: 12702
diff changeset
468 lua_pushlstring(L, (const char*)rb, rlen);
82bca7191f13 util.crypto: Use stack space buffers
Kim Alvefur <zash@zash.se>
parents: 12702
diff changeset
469 lua_pushlstring(L, (const char*)sb, slen);
82bca7191f13 util.crypto: Use stack space buffers
Kim Alvefur <zash@zash.se>
parents: 12702
diff changeset
470
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
471 return 2;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
472 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
473
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
474 /* sig_der = build_ecdsa_signature(r, s) */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
475 static int Lbuild_ecdsa_signature(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
476 ECDSA_SIG *sig = ECDSA_SIG_new();
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
477 BIGNUM *r, *s;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
478 luaL_Buffer sigbuf;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
479
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
480 size_t rlen, slen;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
481 const unsigned char *rbin, *sbin;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
482
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
483 rbin = (unsigned char*)luaL_checklstring(L, 1, &rlen);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
484 sbin = (unsigned char*)luaL_checklstring(L, 2, &slen);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
485
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
486 r = BN_bin2bn(rbin, (int)rlen, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
487 s = BN_bin2bn(sbin, (int)slen, NULL);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
488
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
489 ECDSA_SIG_set0(sig, r, s);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
490
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
491 luaL_buffinit(L, &sigbuf);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
492
12735
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
493 /* DER structure of an ECDSA signature has 7 bytes plus the integers themselves,
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
494 which may gain an extra byte once encoded */
445f7bd6ffc4 util.crypto, util.jwt: Generate consistent signature sizes (via padding)
Matthew Wild <mwild1@gmail.com>
parents: 12715
diff changeset
495 unsigned char *buffer = (unsigned char*)luaL_prepbuffsize(&sigbuf, (rlen+1)+(slen+1)+7);
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
496 int len = i2d_ECDSA_SIG(sig, &buffer);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
497 luaL_addsize(&sigbuf, len);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
498 luaL_pushresult(&sigbuf);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
499
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
500 ECDSA_SIG_free(sig);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
501
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
502 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
503 }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
504
12702
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
505 #define REG_SIGN_VERIFY(algorithm, digest) \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
506 { #algorithm "_" #digest "_sign", L ## algorithm ## _ ## digest ## _sign },\
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
507 { #algorithm "_" #digest "_verify", L ## algorithm ## _ ## digest ## _verify },
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
508
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
509 #define IMPL_SIGN_VERIFY(algorithm, key_type, digest) \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
510 static int L ## algorithm ## _ ## digest ## _sign(lua_State *L) { \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
511 return base_evp_sign(L, key_type, EVP_ ## digest()); \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
512 } \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
513 static int L ## algorithm ## _ ## digest ## _verify(lua_State *L) { \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
514 return base_evp_verify(L, key_type, EVP_ ## digest()); \
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
515 }
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
516
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
517 IMPL_SIGN_VERIFY(ecdsa, NID_X9_62_id_ecPublicKey, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
518 IMPL_SIGN_VERIFY(ecdsa, NID_X9_62_id_ecPublicKey, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
519 IMPL_SIGN_VERIFY(ecdsa, NID_X9_62_id_ecPublicKey, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
520
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
521 IMPL_SIGN_VERIFY(rsassa_pkcs1, NID_rsaEncryption, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
522 IMPL_SIGN_VERIFY(rsassa_pkcs1, NID_rsaEncryption, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
523 IMPL_SIGN_VERIFY(rsassa_pkcs1, NID_rsaEncryption, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
524
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
525 IMPL_SIGN_VERIFY(rsassa_pss, NID_rsassaPss, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
526 IMPL_SIGN_VERIFY(rsassa_pss, NID_rsassaPss, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
527 IMPL_SIGN_VERIFY(rsassa_pss, NID_rsassaPss, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
528
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
529 static const luaL_Reg Reg[] = {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
530 { "ed25519_sign", Led25519_sign },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
531 { "ed25519_verify", Led25519_verify },
12702
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
532
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
533 REG_SIGN_VERIFY(ecdsa, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
534 REG_SIGN_VERIFY(ecdsa, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
535 REG_SIGN_VERIFY(ecdsa, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
536
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
537 REG_SIGN_VERIFY(rsassa_pkcs1, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
538 REG_SIGN_VERIFY(rsassa_pkcs1, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
539 REG_SIGN_VERIFY(rsassa_pkcs1, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
540
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
541 REG_SIGN_VERIFY(rsassa_pss, sha256)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
542 REG_SIGN_VERIFY(rsassa_pss, sha384)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
543 REG_SIGN_VERIFY(rsassa_pss, sha512)
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
544
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
545 { "aes_128_gcm_encrypt", Laes_128_gcm_encrypt },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
546 { "aes_128_gcm_decrypt", Laes_128_gcm_decrypt },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
547 { "aes_256_gcm_encrypt", Laes_256_gcm_encrypt },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
548 { "aes_256_gcm_decrypt", Laes_256_gcm_decrypt },
12702
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
549
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
550 { "generate_ed25519_keypair", Lgenerate_ed25519_keypair },
12702
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
551
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
552 { "import_private_pem", Limport_private_pem },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
553 { "import_public_pem", Limport_public_pem },
12702
f63176781940 util.crypto: More digests for sign/verify, use macros for clarity/consistency
Matthew Wild <mwild1@gmail.com>
parents: 12698
diff changeset
554
12693
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
555 { "parse_ecdsa_signature", Lparse_ecdsa_signature },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
556 { "build_ecdsa_signature", Lbuild_ecdsa_signature },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
557 { NULL, NULL }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
558 };
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
559
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
560 static const luaL_Reg KeyMethods[] = {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
561 { "private_pem", Lpkey_meth_private_pem },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
562 { "public_pem", Lpkey_meth_public_pem },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
563 { "get_type", Lpkey_meth_get_type },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
564 { NULL, NULL }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
565 };
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
566
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
567 static const luaL_Reg KeyMetatable[] = {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
568 { "__gc", Lpkey_finalizer },
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
569 { NULL, NULL }
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
570 };
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
571
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
572 LUALIB_API int luaopen_util_crypto(lua_State *L) {
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
573 #if (LUA_VERSION_NUM > 501)
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
574 luaL_checkversion(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
575 #endif
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
576
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
577 /* Initialize pkey metatable */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
578 luaL_newmetatable(L, PKEY_MT_TAG);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
579 luaL_setfuncs(L, KeyMetatable, 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
580 lua_newtable(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
581 luaL_setfuncs(L, KeyMethods, 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
582 lua_setfield(L, -2, "__index");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
583 lua_pop(L, 1);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
584
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
585 /* Initialize lib table */
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
586 lua_newtable(L);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
587 luaL_setfuncs(L, Reg, 0);
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
588 lua_pushliteral(L, "-3.14");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
589 lua_setfield(L, -2, "version");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
590 #ifdef OPENSSL_VERSION
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
591 lua_pushstring(L, OpenSSL_version(OPENSSL_VERSION));
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
592 lua_setfield(L, -2, "_LIBCRYPTO_VERSION");
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
593 #endif
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
594 return 1;
7c5afbdcbc77 util.crypto: New wrapper for some operations in OpenSSL's libcrypto
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
595 }