SHA-1

Implementation of the SHA-1 hashing function. More...

Detailed Description

Implementation of the SHA-1 hashing function.

Files
file	sha1.h
	SHA-1 interface definition.

Data Structures
struct	sha1_context
	SHA-1 algorithm context. More...

Macros
#define	SHA1_DIGEST_LENGTH   (20)
	Length of SHA-1 digests in byte.
#define	SHA1_BLOCK_LENGTH   (64)
	Length of SHA-1 block in byte.

Functions
void	sha1_init (sha1_context *ctx)
	Initialize SHA-1 message digest context.
void	sha1_update (sha1_context *ctx, const void *data, size_t len)
	Update the SHA-1 context with a portion of the message being hashed.
void	sha1_final (sha1_context *ctx, void *digest)
	Finalizes the SHA-1 message digest.
void	sha1 (void *digest, const void *data, size_t len)
	Calculate a SHA1 hash from the given data.
void	sha1_init_hmac (sha1_context *ctx, const void *key, size_t key_length)
	Initialize SHA-1 message digest context with MAC.
void	sha1_final_hmac (sha1_context *ctx, void *digest)
	Finalizes the SHA-1 message digest with MAC.

Macro Definition Documentation

SHA1_BLOCK_LENGTH

#define SHA1_BLOCK_LENGTH   (64)

Length of SHA-1 block in byte.

Definition at line 43 of file sha1.h.

SHA1_DIGEST_LENGTH

#define SHA1_DIGEST_LENGTH   (20)

Length of SHA-1 digests in byte.

Definition at line 38 of file sha1.h.

Function Documentation

sha1()

void sha1	(	void *	digest,
		const void *	data,
		size_t	len
	)

Calculate a SHA1 hash from the given data.

Parameters

[out]	digest	Result location, must be 20 byte
[in]	data	Input data
[in]	len	Length of buf

sha1_final()

void sha1_final	(	sha1_context *	ctx,
		void *	digest
	)

Finalizes the SHA-1 message digest.

Parameters

[in]	ctx	Pointer to the SHA-1 context
[out]	digest	Result location, must be 20 byte

sha1_final_hmac()

void sha1_final_hmac	(	sha1_context *	ctx,
		void *	digest
	)

Finalizes the SHA-1 message digest with MAC.

Parameters

[in]	ctx	Pointer to the SHA-1 context
[out]	digest	Result location, must be 20 byte

sha1_init()

void sha1_init

(

sha1_context *

ctx

)

Initialize SHA-1 message digest context.

Parameters

[in]

ctx

Pointer to the SHA-1 context to initialize

sha1_init_hmac()

void sha1_init_hmac	(	sha1_context *	ctx,
		const void *	key,
		size_t	key_length
	)

Initialize SHA-1 message digest context with MAC.

Parameters

[in]	ctx	Pointer to the SHA-1 context to initialize
[in]	key	Key used in the HMAC-SHA1 computation
[in]	key_length	The size in bytes of key

sha1_update()

void sha1_update	(	sha1_context *	ctx,
		const void *	data,
		size_t	len
	)

Update the SHA-1 context with a portion of the message being hashed.

Parameters

[in]	ctx	Pointer to the SHA-1 context to update
[in]	data	Input data
[in]	len	Length of data