Mercurial > dropbear
view libtomcrypt/src/mac/poly1305/poly1305_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> |
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date | Thu, 29 Oct 2020 23:00:52 +0800 |
parents | 6dba84798cd5 |
children |
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/* 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. */ /* The implementation is based on: * Public Domain poly1305 from Andrew Moon * https://github.com/floodyberry/poly1305-donna */ #include "tomcrypt.h" #ifdef LTC_POLY1305 /** POLY1305 a block of memory to produce the authentication tag @param key The secret key @param keylen The length of the secret key (octets) @param in The data to POLY1305 @param inlen The length of the data to POLY1305 (octets) @param mac [out] Destination of the authentication tag @param maclen [in/out] Max size and resulting size of authentication tag @return CRYPT_OK if successful */ int poly1305_memory(const unsigned char *key, unsigned long keylen, const unsigned char *in, unsigned long inlen, unsigned char *mac, unsigned long *maclen) { poly1305_state st; int err; LTC_ARGCHK(key != NULL); LTC_ARGCHK(in != NULL); LTC_ARGCHK(mac != NULL); LTC_ARGCHK(maclen != NULL); if ((err = poly1305_init(&st, key, keylen)) != CRYPT_OK) { goto LBL_ERR; } if ((err = poly1305_process(&st, in, inlen)) != CRYPT_OK) { goto LBL_ERR; } err = poly1305_done(&st, mac, maclen); LBL_ERR: #ifdef LTC_CLEAN_STACK zeromem(&st, sizeof(poly1305_state)); #endif return err; } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */