From 94e3c8c4fd7bfe395fa467973cd647551d6d98c7 Mon Sep 17 00:00:00 2001 From: gaurav rana Date: Fri, 20 Feb 2015 12:51:46 +0530 Subject: crypto/fsl - Add progressive hashing support using hardware acceleration. Currently only normal hashing is supported using hardware acceleration. Added support for progressive hashing using hardware. Signed-off-by: Ruchika Gupta Signed-off-by: Gaurav Rana CC: Simon Glass Reviewed-by: Simon Glass Reviewed-by: York Sun --- include/hw_sha.h | 41 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 40 insertions(+), 1 deletion(-) (limited to 'include/hw_sha.h') diff --git a/include/hw_sha.h b/include/hw_sha.h index 783350d..ab19a99 100644 --- a/include/hw_sha.h +++ b/include/hw_sha.h @@ -7,7 +7,7 @@ */ #ifndef __HW_SHA_H #define __HW_SHA_H - +#include /** * 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 -- cgit v1.1