Mercurial > dropbear
view libtomcrypt/src/mac/xcbc/xcbc_memory.c @ 1772:0cc85b4a4abb
Move fuzzer-kex initialisation into a constructor function
Hopefully this can avoid hitting AFL timeouts
https://github.com/google/oss-fuzz/pull/2474
author | Matt Johnston <matt@ucc.asn.au> |
---|---|
date | Thu, 29 Oct 2020 23:00:52 +0800 |
parents | 6dba84798cd5 |
children |
line wrap: on
line source
/* 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. */ #include "tomcrypt.h" /** @file xcbc_process.c XCBC Support, XCBC-MAC a block of memory */ #ifdef LTC_XCBC /** XCBC-MAC a block of memory @param cipher Index of cipher to use @param key [in] Secret key @param keylen Length of key in octets @param in [in] Message to MAC @param inlen Length of input in octets @param out [out] Destination for the MAC tag @param outlen [in/out] Output size and final tag size Return CRYPT_OK on success. */ int xcbc_memory(int cipher, const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *out, unsigned long *outlen) { xcbc_state *xcbc; int err; /* is the cipher valid? */ if ((err = cipher_is_valid(cipher)) != CRYPT_OK) { return err; } /* Use accelerator if found */ if (cipher_descriptor[cipher].xcbc_memory != NULL) { return cipher_descriptor[cipher].xcbc_memory(key, keylen, in, inlen, out, outlen); } xcbc = XCALLOC(1, sizeof(*xcbc)); if (xcbc == NULL) { return CRYPT_MEM; } if ((err = xcbc_init(xcbc, cipher, key, keylen)) != CRYPT_OK) { goto done; } if ((err = xcbc_process(xcbc, in, inlen)) != CRYPT_OK) { goto done; } err = xcbc_done(xcbc, out, outlen); done: XFREE(xcbc); return err; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */