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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.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtomcrypt.org
*/
/**
@file eax_addheader.c
EAX implementation, add meta-data, by Tom St Denis
*/
#include "tomcrypt.h"
#ifdef 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
/* $Source: /cvs/libtom/libtomcrypt/src/encauth/eax/eax_addheader.c,v $ */
/* $Revision: 1.3 $ */
/* $Date: 2005/05/05 14:35:58 $ */
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