/home/dko/Projects/mobilec/src/security/xyssl-0.9/include/xyssl/aes.h File Reference

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Data Structures
struct	aes_context
	AES context structure. More...
Defines
#define	AES_ENCRYPT   1
#define	AES_DECRYPT   0
Functions
void	aes_setkey_enc (aes_context *ctx, unsigned char *key, int keysize)
	AES key schedule (encryption).
void	aes_setkey_dec (aes_context *ctx, unsigned char *key, int keysize)
	AES key schedule (decryption).
void	aes_crypt_ecb (aes_context *ctx, int mode, unsigned char input[16], unsigned char output[16])
	AES-ECB block encryption/decryption.
void	aes_crypt_cbc (aes_context *ctx, int mode, int length, unsigned char iv[16], unsigned char *input, unsigned char *output)
	AES-CBC buffer encryption/decryption.
void	aes_crypt_cfb (aes_context *ctx, int mode, int length, int *iv_off, unsigned char iv[16], unsigned char *input, unsigned char *output)
	AES-CFB buffer encryption/decryption.
int	aes_self_test (int verbose)
	Checkup routine.

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Detailed Description

Definition in file aes.h.

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Define Documentation

#define AES_DECRYPT   0

Definition at line 8 of file aes.h.

Referenced by aes_crypt_cbc(), aes_crypt_cfb(), aes_crypt_ecb(), aes_en_de(), aes_self_test(), main(), and ssl_decrypt_buf().

#define AES_ENCRYPT   1

Definition at line 7 of file aes.h.

Referenced by aes_crypt_cfb(), aes_en_de(), main(), and ssl_encrypt_buf().

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Function Documentation

void aes_crypt_cbc	(	aes_context *	ctx,
		int	mode,
		int	length,
		unsigned char	iv[16],
		unsigned char *	input,
		unsigned char *	output
	)

AES-CBC buffer encryption/decryption.

Parameters:

	ctx	AES context
	mode	AES_ENCRYPT or AES_DECRYPT
	length	length of the input data
	iv	initialization vector (updated after use)
	input	buffer holding the input data
	output	buffer holding the output data

Definition at line 732 of file aes.c.

References aes_crypt_ecb(), and AES_DECRYPT.

Referenced by aes_self_test(), main(), ssl_decrypt_buf(), and ssl_encrypt_buf().

void aes_crypt_cfb	(	aes_context *	ctx,
		int	mode,
		int	length,
		int *	iv_off,
		unsigned char	iv[16],
		unsigned char *	input,
		unsigned char *	output
	)

AES-CFB buffer encryption/decryption.

Parameters:

	ctx	AES context
	mode	AES_ENCRYPT or AES_DECRYPT
	length	length of the input data
	iv_off	offset in IV (updated after use)
	iv	initialization vector (updated after use)
	input	buffer holding the input data
	output	buffer holding the output data

Definition at line 787 of file aes.c.

References aes_crypt_ecb(), AES_DECRYPT, and AES_ENCRYPT.

Referenced by aes_self_test().

void aes_crypt_ecb	(	aes_context *	ctx,
		int	mode,
		unsigned char	input[16],
		unsigned char	output[16]
	)

AES-ECB block encryption/decryption.

Parameters:

	ctx	AES context
	mode	AES_ENCRYPT or AES_DECRYPT
	input	16-byte input block
	output	16-byte output block

Definition at line 639 of file aes.c.

References AES_DECRYPT, AES_FROUND, AES_RROUND, FSb, GET_ULONG_LE, aes_context::nr, PUT_ULONG_LE, aes_context::rk, and RSb.

Referenced by aes_crypt_cbc(), aes_crypt_cfb(), aes_en_de(), aes_self_test(), and main().

int aes_self_test

(

int

verbose

)

Checkup routine.

Returns:

0 if successful, or 1 if the test failed

Definition at line 902 of file aes.c.

References aes_crypt_cbc(), aes_crypt_cfb(), aes_crypt_ecb(), AES_DECRYPT, aes_setkey_dec(), aes_setkey_enc(), aes_test_cbc_dec, aes_test_cbc_enc, aes_test_cfb_dec, aes_test_cfb_enc, aes_test_ecb_dec, aes_test_ecb_enc, buf, and prv.

Referenced by main().

void aes_setkey_dec	(	aes_context *	ctx,
		unsigned char *	key,
		int	keysize
	)

AES key schedule (decryption).

Parameters:

	ctx	AES context to be initialized
	key	decryption key
	keysize	must be 128, 192 or 256

Definition at line 542 of file aes.c.

References aes_setkey_enc(), aes_context::buf, FSb, aes_context::nr, aes_context::rk, RT0, RT1, RT2, and RT3.

Referenced by aes_en_de(), aes_self_test(), main(), and ssl_derive_keys().

void aes_setkey_enc	(	aes_context *	ctx,
		unsigned char *	key,
		int	keysize
	)

AES key schedule (encryption).

Parameters:

	ctx	AES context to be initialized
	key	encryption key
	keysize	must be 128, 192 or 256

Definition at line 439 of file aes.c.

References aes_gen_tables(), aes_init_done, aes_context::buf, FSb, GET_ULONG_LE, aes_context::nr, RCON, and aes_context::rk.

Referenced by aes_en_de(), aes_self_test(), aes_setkey_dec(), main(), and ssl_derive_keys().