diff options
| author | gaurav rana | 2015-02-20 12:51:46 +0530 |
|---|---|---|
| committer | York Sun | 2015-02-25 13:20:02 -0800 |
| commit | 94e3c8c4fd7bfe395fa467973cd647551d6d98c7 (patch) | |
| tree | b591415085fa8629245dcd2183f2dc50f550ccc1 /include/hw_sha.h | |
| parent | 7ee8c4795d0ab0f1cd25496bfbcdedb184ef5a8d (diff) | |
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 <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>
Diffstat (limited to 'include/hw_sha.h')
| -rw-r--r-- | include/hw_sha.h | 41 |
1 files changed, 40 insertions, 1 deletions
diff --git a/include/hw_sha.h b/include/hw_sha.h index 783350d5136..ab19a991889 100644 --- a/include/hw_sha.h +++ b/include/hw_sha.h @@ -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 |