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--HG-- branch : libtomcrypt-orig extra : convert_revision : 1626dca9b669f35fc7b143ba5133a7ea90a191d3
35 lines
806 B
C
35 lines
806 B
C
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*
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* Tom St Denis, tomstdenis@iahu.ca, http://libtomcrypt.org
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*/
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/* EAX Implementation by Tom St Denis */
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#include "mycrypt.h"
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#ifdef EAX_MODE
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int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt, unsigned long length)
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{
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int err;
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_ARGCHK(eax != NULL);
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_ARGCHK(pt != NULL);
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_ARGCHK(ct != NULL);
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/* omac ciphertext */
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if ((err = omac_process(&eax->ctomac, ct, length)) != CRYPT_OK) {
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return err;
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}
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/* decrypt */
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return ctr_decrypt(ct, pt, length, &eax->ctr);
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}
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#endif
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