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1 /*
2 * AES Cryptographic Algorithm Header File. Include this header file in
3 * your source which uses these given APIs. (This source is kept under
4 * public domain)
5 */
6
7 // AES context structure
8 typedef struct {
9 unsigned int Ek[60];
10 unsigned int Dk[60];
11 unsigned int Iv[4];
12 unsigned char Nr;
13 unsigned char Mode;
14 } AesCtx;
15
16 // key length in bytes
17 #define KEY128 16
18 #define KEY192 24
19 #define KEY256 32
20 // block size in bytes
21 #define BLOCKSZ 16
22 // mode
23 #define EBC 0
24 #define CBC 1
25
26 // AES API function prototype
27
28 int AesCtxIni(AesCtx *pCtx, unsigned char *pIV, unsigned char *pKey, unsigned int KeyLen, unsigned char Mode);
29 int AesEncrypt(AesCtx *pCtx, unsigned char *pData, unsigned char *pCipher, unsigned int DataLen);
30 int AesDecrypt(AesCtx *pCtx, unsigned char *pCipher, unsigned char *pData, unsigned int CipherLen);
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