Mercurial > dropbear
diff eax_decrypt.c @ 3:7faae8f46238 libtomcrypt-orig
Branch renaming
author | Matt Johnston <matt@ucc.asn.au> |
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date | Mon, 31 May 2004 18:25:41 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/eax_decrypt.c Mon May 31 18:25:41 2004 +0000 @@ -0,0 +1,34 @@ +/* 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, [email protected], http://libtomcrypt.org + */ + +/* EAX Implementation by Tom St Denis */ +#include "mycrypt.h" + +#ifdef EAX_MODE + +int eax_decrypt(eax_state *eax, const unsigned char *ct, unsigned char *pt, unsigned long length) +{ + int err; + + _ARGCHK(eax != NULL); + _ARGCHK(pt != NULL); + _ARGCHK(ct != NULL); + + /* omac ciphertext */ + if ((err = omac_process(&eax->ctomac, ct, length)) != CRYPT_OK) { + return err; + } + + /* decrypt */ + return ctr_decrypt(ct, pt, length, &eax->ctr); +} + +#endif