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libs/hashes.lua

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libs/hashes.lua @ 473:b2198cd64c5a

disco: Add support for extended disco forms
author Matthew Wild <mwild1@gmail.com>
date Fri, 17 Mar 2023 11:12:01 +0000
parent 443:89526c890363
child 484:5e2978489c95
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1
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2 local function not_available(_, method_name)
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3 error("Hash method "..method_name.." not available", 2);
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4 end
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5
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6 local _M = setmetatable({}, { __index = not_available });
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8 local function with(mod, f)
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9 local ok, pkg = pcall(require, mod);
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10 if ok then f(pkg); end
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11 end
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13 with("util.sha1", function (sha1)
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14 _M.sha1 = sha1.sha1;
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15 end);
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17 with("bgcrypto.md5", function (md5)
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18 _M.md5 = md5.digest;
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19 _M.hmac_md5 = md5.hmac.digest;
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20 end);
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22 with("bgcrypto.sha1", function (sha1)
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23 _M.sha1 = sha1.digest;
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24 _M.hmac_sha1 = sha1.hmac.digest;
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25 _M.scram_Hi_sha1 = function (p, s, i) return sha1.pbkdf2(p, s, i, 20); end;
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26 end);
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28 with("bgcrypto.sha256", function (sha256)
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29 _M.sha256 = sha256.digest;
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30 _M.hmac_sha256 = sha256.hmac.digest;
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31 end);
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32
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33 with("bgcrypto.sha512", function (sha512)
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34 _M.sha512 = sha512.digest;
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35 _M.hmac_sha512 = sha512.hmac.digest;
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36 end);
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37
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38 with("sha1", function (sha1)
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39 _M.sha1 = function (data, hex)
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40 if hex then
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41 return sha1.sha1(data);
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42 else
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43 return (sha1.binary(data));
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44 end
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45 end;
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46 end);
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47
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48 return _M;