diff options
author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2015-11-09 05:12:59 +0000 |
---|---|---|
committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2015-11-09 05:12:59 +0000 |
commit | 26c046fbc57d53136b4fb3b5e0d18298318125d4 (patch) | |
tree | 0397d2184e7fba8a51f7fb9a6fc01a82d0748411 /nss/lib/freebl/secrng.h | |
parent | c416b91e36567df4ec765a495c5a6ca6a1853f58 (diff) | |
download | nss-26c046fbc57d53136b4fb3b5e0d18298318125d4.tar.gz |
nss-3.21nss-3.21
Diffstat (limited to 'nss/lib/freebl/secrng.h')
-rw-r--r-- | nss/lib/freebl/secrng.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/nss/lib/freebl/secrng.h b/nss/lib/freebl/secrng.h new file mode 100644 index 0000000..e9e6dd2 --- /dev/null +++ b/nss/lib/freebl/secrng.h @@ -0,0 +1,65 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef _SECRNG_H_ +#define _SECRNG_H_ +/* + * secrng.h - public data structures and prototypes for the secure random + * number generator + */ + +/******************************************/ +/* +** Random number generation. A cryptographically strong random number +** generator. +*/ + +#include "blapi.h" + +/* the number of bytes to read from the system random number generator */ +#define SYSTEM_RNG_SEED_COUNT 1024 + +SEC_BEGIN_PROTOS + +/* +** The following functions are provided by the security library +** but are differently implemented for the UNIX, Win, and OS/2 +** versions +*/ + +/* +** Get the "noisiest" information available on the system. +** The amount of data returned depends on the system implementation. +** It will not exceed maxbytes, but may be (much) less. +** Returns number of noise bytes copied into buf, or zero if error. +*/ +extern size_t RNG_GetNoise(void *buf, size_t maxbytes); + +/* +** RNG_SystemInfoForRNG should be called before any use of SSL. It +** gathers up the system specific information to help seed the +** state of the global random number generator. +*/ +extern void RNG_SystemInfoForRNG(void); + +/* +** Use the contents (and stat) of a file to help seed the +** global random number generator. +*/ +extern void RNG_FileForRNG(const char *filename); + +/* +** Get maxbytes bytes of random data from the system random number +** generator. +** Returns the number of bytes copied into buf -- maxbytes if success +** or zero if error. +** Errors: +** PR_NOT_IMPLEMENTED_ERROR There is no system RNG on the platform. +** SEC_ERROR_NEED_RANDOM The system RNG failed. +*/ +extern size_t RNG_SystemRNG(void *buf, size_t maxbytes); + +SEC_END_PROTOS + +#endif /* _SECRNG_H_ */ |