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1 | /* Aes.h -- AES encryption / decryption\r |
2 | 2013-01-18 : Igor Pavlov : Public domain */\r |
3 | \r |
4 | #ifndef __AES_H\r |
5 | #define __AES_H\r |
6 | \r |
7 | #include "7zTypes.h"\r |
8 | \r |
9 | EXTERN_C_BEGIN\r |
10 | \r |
11 | #define AES_BLOCK_SIZE 16\r |
12 | \r |
13 | /* Call AesGenTables one time before other AES functions */\r |
14 | void AesGenTables(void);\r |
15 | \r |
16 | /* UInt32 pointers must be 16-byte aligned */\r |
17 | \r |
18 | /* 16-byte (4 * 32-bit words) blocks: 1 (IV) + 1 (keyMode) + 15 (AES-256 roundKeys) */\r |
19 | #define AES_NUM_IVMRK_WORDS ((1 + 1 + 15) * 4)\r |
20 | \r |
21 | /* aes - 16-byte aligned pointer to keyMode+roundKeys sequence */\r |
22 | /* keySize = 16 or 24 or 32 (bytes) */\r |
23 | typedef void (MY_FAST_CALL *AES_SET_KEY_FUNC)(UInt32 *aes, const Byte *key, unsigned keySize);\r |
24 | void MY_FAST_CALL Aes_SetKey_Enc(UInt32 *aes, const Byte *key, unsigned keySize);\r |
25 | void MY_FAST_CALL Aes_SetKey_Dec(UInt32 *aes, const Byte *key, unsigned keySize);\r |
26 | \r |
27 | /* ivAes - 16-byte aligned pointer to iv+keyMode+roundKeys sequence: UInt32[AES_NUM_IVMRK_WORDS] */\r |
28 | void AesCbc_Init(UInt32 *ivAes, const Byte *iv); /* iv size is AES_BLOCK_SIZE */\r |
29 | /* data - 16-byte aligned pointer to data */\r |
30 | /* numBlocks - the number of 16-byte blocks in data array */\r |
31 | typedef void (MY_FAST_CALL *AES_CODE_FUNC)(UInt32 *ivAes, Byte *data, size_t numBlocks);\r |
32 | extern AES_CODE_FUNC g_AesCbc_Encode;\r |
33 | extern AES_CODE_FUNC g_AesCbc_Decode;\r |
34 | extern AES_CODE_FUNC g_AesCtr_Code;\r |
35 | \r |
36 | EXTERN_C_END\r |
37 | \r |
38 | #endif\r |