Mercurial > dropbear
diff src/misc/crypt/crypt_unregister_prng.c @ 191:1c15b283127b libtomcrypt-orig
Import of libtomcrypt 1.02 with manual path rename rearrangement etc
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 06 May 2005 13:23:02 +0000 |
parents | |
children | 39d5d58461d6 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/misc/crypt/crypt_unregister_prng.c Fri May 06 13:23:02 2005 +0000 @@ -0,0 +1,37 @@ +/* LibTomCrypt, modular cryptographic library -- Tom St Denis + * + * LibTomCrypt is a library that provides various cryptographic + * algorithms in a highly modular and flexible manner. + * + * The library is free for all purposes without any express + * guarantee it works. + * + * Tom St Denis, [email protected], http://libtomcrypt.org + */ +#include "tomcrypt.h" + +/** + @file crypt_unregister_prng.c + Unregister a PRNG, Tom St Denis +*/ + +/** + Unregister a PRNG from the descriptor table + @param prng The PRNG descriptor to remove + @return CRYPT_OK on success +*/ +int unregister_prng(const struct ltc_prng_descriptor *prng) +{ + int x; + + LTC_ARGCHK(prng != NULL); + + /* is it already registered? */ + for (x = 0; x < TAB_SIZE; x++) { + if (memcmp(&prng_descriptor[x], prng, sizeof(struct ltc_prng_descriptor)) != 0) { + prng_descriptor[x].name = NULL; + return CRYPT_OK; + } + } + return CRYPT_ERROR; +}