| /* Aes.h -- AES encryption / decryption | |
| 2013-01-18 : Igor Pavlov : Public domain */ | |
| #ifndef __AES_H | |
| #define __AES_H | |
| #include "7zTypes.h" | |
| EXTERN_C_BEGIN | |
| #define AES_BLOCK_SIZE 16 | |
| /* Call AesGenTables one time before other AES functions */ | |
| void AesGenTables(void); | |
| /* UInt32 pointers must be 16-byte aligned */ | |
| /* 16-byte (4 * 32-bit words) blocks: 1 (IV) + 1 (keyMode) + 15 (AES-256 roundKeys) */ | |
| #define AES_NUM_IVMRK_WORDS ((1 + 1 + 15) * 4) | |
| /* aes - 16-byte aligned pointer to keyMode+roundKeys sequence */ | |
| /* keySize = 16 or 24 or 32 (bytes) */ | |
| typedef void (MY_FAST_CALL *AES_SET_KEY_FUNC)(UInt32 *aes, const Byte *key, unsigned keySize); | |
| void MY_FAST_CALL Aes_SetKey_Enc(UInt32 *aes, const Byte *key, unsigned keySize); | |
| void MY_FAST_CALL Aes_SetKey_Dec(UInt32 *aes, const Byte *key, unsigned keySize); | |
| /* ivAes - 16-byte aligned pointer to iv+keyMode+roundKeys sequence: UInt32[AES_NUM_IVMRK_WORDS] */ | |
| void AesCbc_Init(UInt32 *ivAes, const Byte *iv); /* iv size is AES_BLOCK_SIZE */ | |
| /* data - 16-byte aligned pointer to data */ | |
| /* numBlocks - the number of 16-byte blocks in data array */ | |
| typedef void (MY_FAST_CALL *AES_CODE_FUNC)(UInt32 *ivAes, Byte *data, size_t numBlocks); | |
| extern AES_CODE_FUNC g_AesCbc_Encode; | |
| extern AES_CODE_FUNC g_AesCbc_Decode; | |
| extern AES_CODE_FUNC g_AesCtr_Code; | |
| EXTERN_C_END | |
| #endif |