prosody
132819f409dc
util/random.lua

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util/random.lua @ 7655:132819f409dc

mod_bosh: Fix typo
author Matthew Wild <mwild1@gmail.com>
date Fri, 02 Sep 2016 23:24:40 +0100
parent 7187:3d2c2f0809ee
child 8241:e7496cff1215
child 8242:177873dc9cf3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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bd812a7713ad util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
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1 -- Prosody IM
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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2 -- Copyright (C) 2008-2014 Matthew Wild
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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3 -- Copyright (C) 2008-2014 Waqas Hussain
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4 --
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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5 -- This project is MIT/X11 licensed. Please see the
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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6 -- COPYING file in the source package for more information.
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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7 --
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8
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3d2c2f0809ee util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG
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9 local ok, crand = pcall(require, "util.crand");
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10 if ok then return crand; end
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12 local urandom, urandom_err = io.open("/dev/urandom", "r");
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13
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14 local function seed()
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15 end
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16
bd812a7713ad util.random: Generic util lib for generating strings of random bytes
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17 local function bytes(n)
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ae044691de0f util.random: Use /dev/urandom
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18 return urandom:read(n);
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19 end
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20
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21 if not urandom then
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22 function bytes()
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23 error("Unable to obtain a secure random number generator, please see https://prosody.im/doc/random ("..urandom_err..")");
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24 end
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25 end
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26
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27 return {
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28 seed = seed;
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29 bytes = bytes;
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30 };