/* LibTomCrypt, modular cryptographic library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
/**
@file eax_addheader.c
EAX implementation, add meta-data, by Tom St Denis
*/
#include "tomcrypt_private.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