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41 lines
1.1 KiB
C
Executable File
41 lines
1.1 KiB
C
Executable File
/* Aes.h */
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#ifndef __AES_H
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#define __AES_H
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#include "../Types.h"
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#define AES_BLOCK_SIZE 16
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typedef struct _CAes
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{
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unsigned numRounds2; /* = numRounds / 2 */
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UInt32 rkey[(14 + 1) * 4];
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} CAes;
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/* Call AesGenTables one time before other AES functions */
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void MY_FAST_CALL AesGenTables(void);
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/* keySize = 16 or 24 or 32 */
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void MY_FAST_CALL AesSetKeyEncode(CAes *p, const Byte *key, unsigned keySize);
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void MY_FAST_CALL AesSetKeyDecode(CAes *p, const Byte *key, unsigned keySize);
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/*
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AesEncode32 and AesDecode32 functions work with little-endian words.
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src and dest can contain same address
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*/
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void MY_FAST_CALL AesEncode32(const UInt32 *src, UInt32 *dest, const UInt32 *w, unsigned numRounds2);
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void MY_FAST_CALL AesDecode32(const UInt32 *src, UInt32 *dest, const UInt32 *w, unsigned numRounds2);
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typedef struct _CAesCbc
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{
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UInt32 prev[4];
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CAes aes;
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} CAesCbc;
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void MY_FAST_CALL AesCbcInit(CAesCbc *cbc, const Byte *iv); /* iv size is AES_BLOCK_SIZE */
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UInt32 MY_FAST_CALL AesCbcDecode(CAesCbc *cbc, Byte *data, UInt32 size);
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UInt32 MY_FAST_CALL AesCbcEncode(CAesCbc *cbc, Byte *data, UInt32 size);
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#endif
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