SHA-224

Implementation of the SHA-224 hashing function. More...

Detailed Description

Implementation of the SHA-224 hashing function.

Files
file	sha224.h
	Header definitions for the SHA224 hash function.

Macros
#define	SHA224_DIGEST_LENGTH   (28)
	Length of SHA224 digests in bytes.
#define	SHA224_INTERNAL_BLOCK_SIZE   (64)
	512 Bit (64 Byte) internally used block size for sha224

Typedefs
typedef sha2xx_context_t	sha224_context_t
	Context for cipher operations based on sha224.

Functions
void	sha224_init (sha224_context_t *ctx)
	SHA-224 initialization.
static void	sha224_update (sha224_context_t *ctx, const void *data, size_t len)
	Add bytes into the hash.
static void	sha224_final (sha224_context_t *ctx, void *digest)
	SHA-224 finalization.
void	sha224 (const void *data, size_t len, void *digest)
	A wrapper function to simplify the generation of a hash, this is useful for generating sha224 for one buffer.

Macro Definition Documentation

SHA224_DIGEST_LENGTH

#define SHA224_DIGEST_LENGTH   (28)

Length of SHA224 digests in bytes.

Definition at line 63 of file sha224.h.

SHA224_INTERNAL_BLOCK_SIZE

#define SHA224_INTERNAL_BLOCK_SIZE   (64)

512 Bit (64 Byte) internally used block size for sha224

Definition at line 68 of file sha224.h.

Typedef Documentation

sha224_context_t

typedef sha2xx_context_t sha224_context_t

Context for cipher operations based on sha224.

Definition at line 73 of file sha224.h.

Function Documentation

sha224()

void sha224	(	const void *	data,
		size_t	len,
		void *	digest )

A wrapper function to simplify the generation of a hash, this is useful for generating sha224 for one buffer.

Parameters

[in]	data	pointer to the buffer to generate hash from
[in]	len	length of the buffer
[out]	digest	Pointer to an array for the result, length must be SHA224_DIGEST_LENGTH

sha224_final()

static void sha224_final ( sha224_context_t * ctx, void * digest )

inlinestatic

SHA-224 finalization.

Pads the input data, exports the hash value, and clears the context state.

Parameters

ctx	sha224_context_t handle to use
digest	resulting digest, this is the hash of all the bytes

Definition at line 101 of file sha224.h.

sha224_init()

void sha224_init

(

sha224_context_t *

ctx

)

SHA-224 initialization.

Begins a SHA-224 operation.

Parameters

ctx	sha224_context_t handle to init

sha224_update()

static void sha224_update ( sha224_context_t * ctx, const void * data, size_t len )

inlinestatic

Add bytes into the hash.

Parameters

	ctx	sha224_context_t handle to use
[in]	data	Input data
[in]	len	Length of data

Definition at line 89 of file sha224.h.