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crypto/fsl - Add progressive hashing support using hardware acceleration.

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Currently only normal hashing is supported using hardware acceleration.
Added support for progressive hashing using hardware.

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Gaurav Rana <gaurav.rana@freescale.com>
CC: Simon Glass <sjg@chromium.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
gaurav rana
2015-02-20 12:51:46 +05:30
committed by York Sun
parent 7ee8c4795d
commit 94e3c8c4fd
8 changed files with 302 additions and 7 deletions
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41
include/hw_sha.h
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@@ -7,7 +7,7 @@
*/
#ifndef __HW_SHA_H
#define __HW_SHA_H
#include <hash.h>
/**
* Computes hash value of input pbuf using h/w acceleration
@@ -34,4 +34,43 @@ void hw_sha256(const uchar * in_addr, uint buflen,
*/
void hw_sha1(const uchar * in_addr, uint buflen,
uchar * out_addr, uint chunk_size);
/*
* Create the context for sha progressive hashing using h/w acceleration
*
* @algo: Pointer to the hash_algo struct
* @ctxp: Pointer to the pointer of the context for hashing
* @return 0 if ok, -ve on error
*/
int hw_sha_init(struct hash_algo *algo, void **ctxp);
/*
* Update buffer for sha progressive hashing using h/w acceleration
*
* The context is freed by this function if an error occurs.
*
* @algo: Pointer to the hash_algo struct
* @ctx: Pointer to the context for hashing
* @buf: Pointer to the buffer being hashed
* @size: Size of the buffer being hashed
* @is_last: 1 if this is the last update; 0 otherwise
* @return 0 if ok, -ve on error
*/
int hw_sha_update(struct hash_algo *algo, void *ctx, const void *buf,
unsigned int size, int is_last);
/*
* Copy sha hash result at destination location
*
* The context is freed after completion of hash operation or after an error.
*
* @algo: Pointer to the hash_algo struct
* @ctx: Pointer to the context for hashing
* @dest_buf: Pointer to the destination buffer where hash is to be copied
* @size: Size of the buffer being hashed
* @return 0 if ok, -ve on error
*/
int hw_sha_finish(struct hash_algo *algo, void *ctx, void *dest_buf,
int size);
#endif