sha1.h File Reference

Go to the source code of this file.

#include "utildev.h"

Detailed Description

SHA1 hash function support.

This file is based on Brad Conte's basic implementations of cryptography algorithms...

‍https://github.com/B-Con/crypto-algorithms

... and alterations to the transform function were based on Steve Reid's SHA1 implementation...

‍https://github.com/clibs/sha1

... both of which were released into the Public Domain.

Copyright

This file is released into the Public Domain under the Creative Commons Zero v1.0 Universal license.

Macros
#define	SHA1LEN   20
	SHA1 message digest length, in bytes.

Data Structures
struct	SHA1_CTX

Functions
void	sha1_init (SHA1_CTX *ctx)
	Initialize a SHA1 context. More...
void	sha1_update (SHA1_CTX *ctx, const void *in, size_t inlen)
	Add inlen bytes from in to a SHA1 context for hashing. More...
void	sha1_final (SHA1_CTX *ctx, void *out)
	Finalize a SHA1 message digest. More...
void	sha1 (const void *in, size_t inlen, void *out)
	Convenient all-in-one SHA1 computation. More...

Function Documentation

sha1()

void sha1	(	const void *	in,
		size_t	inlen,
		void *	out
	)

Convenient all-in-one SHA1 computation.

Performs sha1_init(), sha1_update() and sha1_final(), and places the resulting hash in out.

Parameters

in	Pointer to data to hash
inlen	Length of in data, in bytes
out	Pointer to location to place the message digest

sha1_final()

void sha1_final	(	SHA1_CTX *	ctx,
		void *	out
	)

Finalize a SHA1 message digest.

Generate the SHA1 message digest and place in out.

Parameters

ctx	Pointer to SHA1 context
out	Pointer to location to place the message digest

sha1_init()

void sha1_init

(

SHA1_CTX *

ctx

)

Initialize a SHA1 context.

Parameters

ctx	Pointer to SHA1 context

sha1_update()

void sha1_update	(	SHA1_CTX *	ctx,
		const void *	in,
		size_t	inlen
	)

Add inlen bytes from in to a SHA1 context for hashing.

Parameters

ctx	Pointer to SHA1 context
in	Pointer to data to hash
inlen	Length of in data, in bytes