/* 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. */ /** @file eax_addheader.c EAX implementation, add meta-data, by Tom St Denis */ #include "tomcrypt.h" #ifdef LTC_EAX_MODE /** add header (metadata) to the stream @param eax The current EAX state @param header The header (meta-data) data you wish to add to the state @param length The length of the header data @return CRYPT_OK if successful */ int eax_addheader(eax_state *eax, const unsigned char *header, unsigned long length) { LTC_ARGCHK(eax != NULL); LTC_ARGCHK(header != NULL); return omac_process(&eax->headeromac, header, length); } #endif /* ref: $Format:%D$ */ /* git commit: $Format:%H$ */ /* commit time: $Format:%ai$ */