sha256.cuh File Reference

#include "sha256.h"

Detailed Description

SHA256 CUDA 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 Igor Pavlov's SHA256 implementation...

‍https://github.com/jb55/sha256.c

... 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.

Functions
__device__ void	cu_sha256_transform (SHA256_CTX *ctx, const uint8_t data[])
	SHA256 transformation rounds. More...
__device__ void	cu_sha256_init (SHA256_CTX *ctx)
	Initialize a SHA256 context. More...
__device__ void	cu_sha256_update (SHA256_CTX *ctx, const void *in, size_t inlen)
	Add inlen bytes from in to a SHA256 context for hashing. More...
__device__ void	cu_sha256_final (SHA256_CTX *ctx, void *out)
	Finalize a SHA256 message digest. More...
__device__ void	cu_sha256 (const void *in, size_t inlen, void *out)
	Convenient all-in-one SHA256 computation. More...

Function Documentation

cu_sha256()

__device__ void cu_sha256	(	const void *	in,
		size_t	inlen,
		void *	out
	)

Convenient all-in-one SHA256 computation.

Performs cu_sha256_init(), cu_sha256_update() and cu_sha256_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

cu_sha256_final()

__device__ void cu_sha256_final	(	SHA256_CTX *	ctx,
		void *	out
	)

Finalize a SHA256 message digest.

Generate the SHA256 message digest and place in out.

Parameters

ctx	Pointer to SHA256 context
out	Pointer to location to place the message digest

cu_sha256_init()

__device__ void cu_sha256_init

(

SHA256_CTX *

ctx

)

Initialize a SHA256 context.

Parameters

ctx	Pointer to SHA256 context

cu_sha256_transform()

__device__ void cu_sha256_transform	(	SHA256_CTX *	ctx,
		const uint8_t	data[]
	)

SHA256 transformation rounds.

Parameters

ctx	Pointer to SHA256 context
data	Pointer to input to be transformed

SHA256 transformation constan

cu_sha256_update()

__device__ void cu_sha256_update	(	SHA256_CTX *	ctx,
		const void *	in,
		size_t	inlen
	)

Add inlen bytes from in to a SHA256 context for hashing.

Parameters

ctx	Pointer to SHA256 context
in	Pointer to data to hash
inlen	Length of in data, in bytes