/home/dko/Projects/mobilec/src/security/xyssl-0.9/include/xyssl/sha2.h File Reference

Go to the source code of this file.

Data Structures
struct	sha2_context
	SHA-256 context structure. More...
Functions
void	sha2_starts (sha2_context *ctx, int is224)
	SHA-256 context setup.
void	sha2_update (sha2_context *ctx, unsigned char *input, int ilen)
	SHA-256 process buffer.
void	sha2_finish (sha2_context *ctx, unsigned char output[32])
	SHA-256 final digest.
void	sha2 (unsigned char *input, int ilen, unsigned char output[32], int is224)
	Output = SHA-256( input buffer ).
int	sha2_file (char *path, unsigned char output[32], int is224)
	Output = SHA-256( file contents ).
void	sha2_hmac_starts (sha2_context *ctx, unsigned char *key, int keylen, int is224)
	SHA-256 HMAC context setup.
void	sha2_hmac_update (sha2_context *ctx, unsigned char *input, int ilen)
	SHA-256 HMAC process buffer.
void	sha2_hmac_finish (sha2_context *ctx, unsigned char output[32])
	SHA-256 HMAC final digest.
void	sha2_hmac (unsigned char *key, int keylen, unsigned char *input, int ilen, unsigned char output[32], int is224)
	Output = HMAC-SHA-256( hmac key, input buffer ).
int	sha2_self_test (int verbose)
	Checkup routine.

---

Detailed Description

Definition in file sha2.h.

---

Function Documentation

void sha2	(	unsigned char *	input,
		int	ilen,
		unsigned char	output[32],
		int	is224
	)

Output = SHA-256( input buffer ).

Parameters:

	input	buffer holding the data
	ilen	length of the input data
	output	SHA-224/256 checksum result
	is224	0 = use SHA256, 1 = use SHA224

Definition at line 314 of file sha2.c.

References sha2_finish(), sha2_starts(), and sha2_update().

Referenced by main(), and sha2_hmac_starts().

int sha2_file	(	char *	path,
		unsigned char	output[32],
		int	is224
	)

Output = SHA-256( file contents ).

Parameters:

	path	input file name
	output	SHA-224/256 checksum result
	is224	0 = use SHA256, 1 = use SHA224

Returns:

0 if successful, 1 if fopen failed, or 2 if fread failed

Definition at line 329 of file sha2.c.

References buf, f, sha2_finish(), sha2_starts(), and sha2_update().

Referenced by sha2_wrapper().

void sha2_finish	(	sha2_context *	ctx,
		unsigned char	output[32]
	)

SHA-256 final digest.

Parameters:

	ctx	SHA-256 context
	output	SHA-224/256 checksum result

Definition at line 280 of file sha2.c.

References sha2_context::is224, PUT_ULONG_BE, sha2_padding, sha2_update(), sha2_context::state, and sha2_context::total.

Referenced by aes_en_de(), main(), sha2(), sha2_file(), sha2_hmac_finish(), and sha2_self_test().

void sha2_hmac	(	unsigned char *	key,
		int	keylen,
		unsigned char *	input,
		int	ilen,
		unsigned char	output[32],
		int	is224
	)

Output = HMAC-SHA-256( hmac key, input buffer ).

Parameters:

	key	HMAC secret key
	keylen	length of the HMAC key
	input	buffer holding the data
	ilen	length of the input data
	output	HMAC-SHA-224/256 result
	is224	0 = use SHA256, 1 = use SHA224

Definition at line 420 of file sha2.c.

References sha2_hmac_finish(), sha2_hmac_starts(), and sha2_hmac_update().

void sha2_hmac_finish	(	sha2_context *	ctx,
		unsigned char	output[32]
	)

SHA-256 HMAC final digest.

Parameters:

	ctx	HMAC context
	output	SHA-224/256 HMAC checksum result

Definition at line 400 of file sha2.c.

References sha2_context::is224, sha2_context::opad, sha2_finish(), sha2_starts(), and sha2_update().

Referenced by aes_en_de(), main(), sha2_hmac(), and sha2_self_test().

void sha2_hmac_starts	(	sha2_context *	ctx,
		unsigned char *	key,
		int	keylen,
		int	is224
	)

SHA-256 HMAC context setup.

Parameters:

	ctx	HMAC context to be initialized
	key	HMAC secret key
	keylen	length of the HMAC key
	is224	0 = use SHA256, 1 = use SHA224

Definition at line 361 of file sha2.c.

References sha2_context::ipad, sha2_context::opad, sha2(), sha2_starts(), and sha2_update().

Referenced by aes_en_de(), main(), sha2_hmac(), and sha2_self_test().

void sha2_hmac_update	(	sha2_context *	ctx,
		unsigned char *	input,
		int	ilen
	)

SHA-256 HMAC process buffer.

Parameters:

	ctx	HMAC context
	input	buffer holding the data
	ilen	length of the input data

Definition at line 392 of file sha2.c.

References sha2_update().

Referenced by aes_en_de(), main(), sha2_hmac(), and sha2_self_test().

int sha2_self_test

(

int

verbose

)

Checkup routine.

Returns:

0 if successful, or 1 if the test failed

Definition at line 599 of file sha2.c.

References buf, sha2_finish(), sha2_hmac_finish(), sha2_hmac_starts(), sha2_hmac_test_buf, sha2_hmac_test_buflen, sha2_hmac_test_key, sha2_hmac_test_keylen, sha2_hmac_test_sum, sha2_hmac_update(), sha2_starts(), sha2_test_buf, sha2_test_buflen, sha2_test_sum, and sha2_update().

Referenced by main().

void sha2_starts	(	sha2_context *	ctx,
		int	is224
	)

SHA-256 context setup.

Parameters:

	ctx	context to be initialized
	is224	0 = use SHA256, 1 = use SHA224

Definition at line 61 of file sha2.c.

References sha2_context::is224, sha2_context::state, and sha2_context::total.

Referenced by aes_en_de(), main(), sha2(), sha2_file(), sha2_hmac_finish(), sha2_hmac_starts(), and sha2_self_test().

void sha2_update	(	sha2_context *	ctx,
		unsigned char *	input,
		int	ilen
	)

SHA-256 process buffer.

Parameters:

	ctx	SHA-256 context
	input	buffer holding the data
	ilen	length of the input data

Definition at line 228 of file sha2.c.

References sha2_context::buffer, sha2_process(), and sha2_context::total.

Referenced by aes_en_de(), main(), sha2(), sha2_file(), sha2_finish(), sha2_hmac_finish(), sha2_hmac_starts(), sha2_hmac_update(), and sha2_self_test().