41 lines
1.5 KiB
C
41 lines
1.5 KiB
C
/*********************************************************************
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* Copyright (c) 2016 Pieter Wuille *
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* Distributed under the MIT software license, see the accompanying *
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* file COPYING or http://www.opensource.org/licenses/mit-license.php.*
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**********************************************************************/
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#ifndef _CTAES_H_
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#define _CTAES_H_ 1
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#include <stdint.h>
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#include <stdlib.h>
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typedef struct {
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uint16_t slice[8];
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} AES_state;
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typedef struct {
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AES_state rk[11];
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} AES128_ctx;
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typedef struct {
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AES_state rk[13];
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} AES192_ctx;
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typedef struct {
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AES_state rk[15];
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} AES256_ctx;
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void AES128_init(AES128_ctx* ctx, const unsigned char* key16);
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void AES128_encrypt(const AES128_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
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void AES128_decrypt(const AES128_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
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void AES192_init(AES192_ctx* ctx, const unsigned char* key24);
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void AES192_encrypt(const AES192_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
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void AES192_decrypt(const AES192_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
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void AES256_init(AES256_ctx* ctx, const unsigned char* key32);
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void AES256_encrypt(const AES256_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
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void AES256_decrypt(const AES256_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
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#endif
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