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GitHub Repository: hrydgard/ppsspp
 Path: blob/master/ext/libkirk/AES.h
Views: 1401
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#ifndef __RIJNDAEL_H

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#define __RIJNDAEL_H

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#include "kirk_engine.h"

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#define AES_KEY_LEN_128	(128)

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#define AES_KEY_LEN_192	(192)

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#define AES_KEY_LEN_256	(256)

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#define AES_BUFFER_SIZE (16)

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#define AES_MAXKEYBITS	(256)

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#define AES_MAXKEYBYTES	(AES_MAXKEYBITS/8)

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/* for 256-bit keys, fewer for less */

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#define AES_MAXROUNDS	14

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#define pwuAESContextBuffer rijndael_ctx

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/*  The structure for key information */

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typedef struct 

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{

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	int	enc_only;		/* context contains only encrypt schedule */

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	int	Nr;			/* key-length-dependent number of rounds */

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	u32	ek[4*(AES_MAXROUNDS + 1)];	/* encrypt key schedule */

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	u32	dk[4*(AES_MAXROUNDS + 1)];	/* decrypt key schedule */

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} rijndael_ctx;

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typedef struct 

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{

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	int	enc_only;		/* context contains only encrypt schedule */

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	int	Nr;			/* key-length-dependent number of rounds */

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	u32	ek[4*(AES_MAXROUNDS + 1)];	/* encrypt key schedule */

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	u32	dk[4*(AES_MAXROUNDS + 1)];	/* decrypt key schedule */

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} AES_ctx;

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int rijndael_set_key(rijndael_ctx *, const u8 *, int);

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int	rijndael_set_key_enc_only(rijndael_ctx *, const u8 *, int);

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void rijndael_decrypt(rijndael_ctx *, const u8 *, u8 *);

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void rijndael_encrypt(rijndael_ctx *, const u8 *, u8 *);

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int AES_set_key(AES_ctx *ctx, const u8 *key, int bits);

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void AES_encrypt(AES_ctx *ctx, const u8 *src, u8 *dst);

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void AES_decrypt(AES_ctx *ctx, const u8 *src, u8 *dst);

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void AES_cbc_encrypt(AES_ctx *ctx, const u8 *src, u8 *dst, int size);

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void AES_cbc_decrypt(AES_ctx *ctx, const u8 *src, u8 *dst, int size);

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void AES_CMAC(AES_ctx *ctx, unsigned char *input, int length, unsigned char *mac);

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int	rijndaelKeySetupEnc(unsigned int [], const unsigned char [], int);

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int	rijndaelKeySetupDec(unsigned int [], const unsigned char [], int);

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void rijndaelEncrypt(const unsigned int [], int, const unsigned char [],

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	    unsigned char []);

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#endif /* __RIJNDAEL_H */

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