| author | Kim Alvefur <zash@zash.se> |
| Sat, 16 Sep 2017 17:22:51 +0200 | |
| changeset 8244 | e7496cff1215 |
| parent 7190 | 3d2c2f0809ee |
| child 8246 | 292f61d9d30a |
| permissions | -rw-r--r-- |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
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-- Prosody IM |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
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-- Copyright (C) 2008-2014 Matthew Wild |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
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3 |
-- Copyright (C) 2008-2014 Waqas Hussain |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
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-- |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
5 |
-- This project is MIT/X11 licensed. Please see the |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
6 |
-- COPYING file in the source package for more information. |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
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-- |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
8 |
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7190
3d2c2f0809ee
util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG
Kim Alvefur <zash@zash.se>
parents:
7117
diff
changeset
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local ok, crand = pcall(require, "util.crand"); |
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3d2c2f0809ee
util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG
Kim Alvefur <zash@zash.se>
parents:
7117
diff
changeset
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10 |
if ok then return crand; end |
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3d2c2f0809ee
util.crand: C binding to one of OpenSSL, Linux getrandom() or OpenBSD arc4random() CSPRNG
Kim Alvefur <zash@zash.se>
parents:
7117
diff
changeset
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11 |
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7117
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
12 |
local urandom, urandom_err = io.open("/dev/urandom", "r"); |
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6376
bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
13 |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
14 |
local function bytes(n) |
| 7053 | 15 |
return urandom:read(n); |
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6376
bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
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end |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
17 |
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|
7117
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
18 |
if not urandom then |
|
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
19 |
function bytes() |
|
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
20 |
error("Unable to obtain a secure random number generator, please see https://prosody.im/doc/random ("..urandom_err..")"); |
|
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
21 |
end |
|
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
22 |
end |
|
51cf09bb74eb
util.random: Restore friendlier error from 0.9/util.uuid
Kim Alvefur <zash@zash.se>
parents:
7086
diff
changeset
|
23 |
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6376
bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
24 |
return { |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
25 |
bytes = bytes; |
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bd812a7713ad
util.random: Generic util lib for generating strings of random bytes
Matthew Wild <mwild1@gmail.com>
parents:
diff
changeset
|
26 |
}; |