SHA-512

Implementation of the SHA-512 hashing function. More...

Detailed Description

Implementation of the SHA-512 hashing function.

Files
file	sha512.h
	Header definitions for the SHA512 hash function.

Macros
#define	SHA512_DIGEST_LENGTH   (64)
	Length of SHA512 digests in bytes.
#define	SHA512_INTERNAL_BLOCK_SIZE   (128)
	1024 Bit (128 Byte) internally used block size for sha512

Typedefs
typedef sha512_common_context_t	sha512_context_t
	Context for cipher operations based on sha512.

Functions
void	sha512_init (sha512_context_t *ctx)
	SHA-512 initialization.
static void	sha512_update (sha512_context_t *ctx, const void *data, size_t len)
	Add bytes into the hash.
static void	sha512_final (sha512_context_t *ctx, void *digest)
	SHA-512 finalization.
void	sha512 (const void *data, size_t len, void *digest)
	A wrapper function to simplify the generation of a hash.

Macro Definition Documentation

SHA512_DIGEST_LENGTH

#define SHA512_DIGEST_LENGTH   (64)

Length of SHA512 digests in bytes.

Definition at line 35 of file sha512.h.

SHA512_INTERNAL_BLOCK_SIZE

#define SHA512_INTERNAL_BLOCK_SIZE   (128)

1024 Bit (128 Byte) internally used block size for sha512

Definition at line 40 of file sha512.h.

Typedef Documentation

sha512_context_t

typedef sha512_common_context_t sha512_context_t

Context for cipher operations based on sha512.

Definition at line 45 of file sha512.h.

Function Documentation

sha512()

void sha512	(	const void *	data,
		size_t	len,
		void *	digest )

A wrapper function to simplify the generation of a hash.

This is useful for generating sha512 for one single buffer in a single step.

Parameters

[in]	data	pointer to the buffer to generate hash from
[in]	len	length of the buffer
[out]	digest	optional pointer to an array for the result, length must be SHA512_DIGEST_LENGTH

sha512_final()

static void sha512_final ( sha512_context_t * ctx, void * digest )

inlinestatic

SHA-512 finalization.

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

Parameters

	ctx	sha512_context_t handle to use, must not be NULL
[out]	digest	pointer to resulting digest, this is the hash of all the bytes. Length must be at least SHA512_DIGEST_LENGTH

Definition at line 74 of file sha512.h.

sha512_init()

void sha512_init

(

sha512_context_t *

ctx

)

SHA-512 initialization.

Begins a SHA-512 operation.

Parameters

ctx	sha512_context_t handle to init, must not be NULL

sha512_update()

static void sha512_update ( sha512_context_t * ctx, const void * data, size_t len )

inlinestatic

Add bytes into the hash.

Parameters

	ctx	sha512_context_t handle to use, must not be NULL
[in]	data	Input data
[in]	len	Length of data

Definition at line 61 of file sha512.h.