src/crypto/ctaes/ctaes.h

   1  /*********************************************************************
   2  * Copyright (c) 2016 Pieter Wuille                                   *
   3  * Distributed under the MIT software license, see the accompanying   *
   4  * file COPYING or http://www.opensource.org/licenses/mit-license.php.*
   5  **********************************************************************/
   6
   7 #ifndef _CTAES_H_
   8 #define _CTAES_H_ 1
   9
  10 #include <stdint.h>
  11 #include <stdlib.h>
  12
  13 typedef struct {
  14     uint16_t slice[8];
  15 } AES_state;
  16
  17 typedef struct {
  18     AES_state rk[11];
  19 } AES128_ctx;
  20
  21 typedef struct {
  22     AES_state rk[13];
  23 } AES192_ctx;
  24
  25 typedef struct {
  26     AES_state rk[15];
  27 } AES256_ctx;
  28
  29 void AES128_init(AES128_ctx* ctx, const unsigned char* key16);
  30 void AES128_encrypt(const AES128_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
  31 void AES128_decrypt(const AES128_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
  32
  33 void AES192_init(AES192_ctx* ctx, const unsigned char* key24);
  34 void AES192_encrypt(const AES192_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
  35 void AES192_decrypt(const AES192_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
  36
  37 void AES256_init(AES256_ctx* ctx, const unsigned char* key32);
  38 void AES256_encrypt(const AES256_ctx* ctx, size_t blocks, unsigned char* cipher16, const unsigned char* plain16);
  39 void AES256_decrypt(const AES256_ctx* ctx, size_t blocks, unsigned char* plain16, const unsigned char* cipher16);
  40
  41 #endif