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50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
#define LTC_SOURCE
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/* 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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#include "tomcrypt.h"
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/**
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@file lrw_encrypt.c
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LRW_MODE implementation, Encrypt blocks, Tom St Denis
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*/
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#ifdef LTC_LRW_MODE
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/**
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LRW encrypt blocks
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@param pt The plaintext
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@param ct [out] The ciphertext
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@param len The length in octets, must be a multiple of 16
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@param lrw The LRW state
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*/
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int lrw_encrypt(const unsigned char *pt, unsigned char *ct, unsigned long len, symmetric_LRW *lrw)
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{
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int err;
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LTC_ARGCHK(pt != NULL);
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LTC_ARGCHK(ct != NULL);
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LTC_ARGCHK(lrw != NULL);
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if ((err = cipher_is_valid(lrw->cipher)) != CRYPT_OK) {
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return err;
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}
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if (cipher_descriptor[lrw->cipher].accel_lrw_encrypt != NULL) {
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return cipher_descriptor[lrw->cipher].accel_lrw_encrypt(pt, ct, len, lrw->IV, lrw->tweak, &lrw->key);
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}
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return lrw_process(pt, ct, len, LRW_ENCRYPT, lrw);
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}
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#endif
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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