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Code

lib:util: Fix documentation for random number functions

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Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Alexander Bokovoy <ab@samba.org>
This commit is contained in:
Andreas Schneider 2019-08-12 16:10:20 +02:00 committed by Alexander Bokovoy
parent 4d276a93fc
commit 97c441d7c2
2 changed files with 13 additions and 4 deletions
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9
lib/util/genrand.c
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@ -33,13 +33,16 @@
_PUBLIC_ void generate_random_buffer(uint8_t *out, int len)
{
/* Thread and fork safe random number generator for temporary keys. */
/* Random number generator for temporary keys. */
gnutls_rnd(GNUTLS_RND_RANDOM, out, len);
}
_PUBLIC_ void generate_secret_buffer(uint8_t *out, int len)
{
/* The key generator, will re-seed after a fixed amount of bytes is
/*
* Random number generator for long term keys.
*
* The key generator, will re-seed after a fixed amount of bytes is
* generated (typically less than the nonce), and will also re-seed
* based on time, i.e., after few hours of operation without reaching
* the limit for a re-seed. For its re-seed it mixes mixes data obtained
@ -51,6 +54,8 @@ _PUBLIC_ void generate_secret_buffer(uint8_t *out, int len)
_PUBLIC_ void generate_nonce_buffer(uint8_t *out, int len)
{
/*
* Random number generator for nonce and initialization vectors.
*
* The nonce generator will reseed after outputting a fixed amount of
* bytes (typically few megabytes), or after few hours of operation
* without reaching the limit has passed.

8
lib/util/genrand.h
View File

@ -20,12 +20,16 @@
*/
/**
* Thread and fork safe random number generator for temporary keys.
* @brief Generate random values for session and temporary keys.
*
* @param[in] out A pointer to the buffer to fill with random data.
*
* @param[in] len The size of the buffer to fill.
*/
void generate_random_buffer(uint8_t *out, int len);
/**
* @brief Generate random values for key buffers (e.g. session keys)
* @brief Generate random values for long term keys and passwords.
*
* @param[in] out A pointer to the buffer to fill with random data.
*