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35 lines
874 B
C
35 lines
874 B
C
/*
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* AES Cryptographic Algorithm Header File. Include this header file in
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* your source which uses these given APIs. (This source is kept under
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* public domain)
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*/
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#ifndef __AES_H
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#define __AES_H
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// AES context structure
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typedef struct {
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unsigned int Ek[60];
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unsigned int Dk[60];
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unsigned int Iv[4];
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unsigned char Nr;
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unsigned char Mode;
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} AesCtx;
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// key length in bytes
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#define KEY128 16
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#define KEY192 24
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#define KEY256 32
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// block size in bytes
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#define BLOCKSZ 16
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// mode
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#define EBC 0
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#define CBC 1
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// AES API function prototype
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int AesCtxIni(AesCtx *pCtx, unsigned char *pIV, unsigned char *pKey, unsigned int KeyLen, unsigned char Mode);
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int AesEncrypt(AesCtx *pCtx, unsigned char *pData, unsigned char *pCipher, unsigned int DataLen);
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int AesDecrypt(AesCtx *pCtx, unsigned char *pCipher, unsigned char *pData, unsigned int CipherLen);
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#endif
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