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grand: Document this is not for cryptographic purposes

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While this is obvious to seasoned experts upon inspection, it is
really worth documenting explicitly.

https://bugzilla.gnome.org/show_bug.cgi?id=710736
This commit is contained in:
Colin Walters 2013-10-23 16:41:09 -04:00
parent 856d901569
commit 1e1e2d1ff7
1 changed files with 16 additions and 4 deletions
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20
glib/grand.c
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@ -65,10 +65,22 @@
* @short_description: pseudo-random number generator
*
* The following functions allow you to use a portable, fast and good
* pseudo-random number generator (PRNG). It uses the Mersenne Twister
* PRNG, which was originally developed by Makoto Matsumoto and Takuji
* Nishimura. Further information can be found at
* <ulink url="http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html">
* pseudo-random number generator (PRNG).
*
* <warning><para>Do not use this API for cryptographic purposes such as key
* generation, nonces, salts or one-time pads.</para></warning>
*
* This PRNG is suitable for non-cryptographic use such as in games
* (shuffling a card deck, generating levels), generating data for a
* test suite, etc. If you need random data for cryptographic
* purposes, it is recommended to use platform-specific APIs such as
* <literal>/dev/random</literal> on Unix, or CryptGenRandom() on
* Windows.
*
* GRand uses the Mersenne Twister PRNG, which was originally
* developed by Makoto Matsumoto and Takuji Nishimura. Further
* information can be found at <ulink
* url="http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html">
* http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html</ulink>.
*
* If you just need a random number, you simply call the