X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fhw_sha.h;h=d4f3471c43089139660e1ef477f3d410cc9a34d0;hb=e2e5eec6ce1c2cb496a2a5e019a175a9fbdbed2a;hp=783350d51366067205cddef01323ca4b664b21e9;hpb=3be2bdf5dc69b3142c1162a59bc67191c9077567;p=platform%2Fkernel%2Fu-boot.git diff --git a/include/hw_sha.h b/include/hw_sha.h index 783350d..d4f3471 100644 --- a/include/hw_sha.h +++ b/include/hw_sha.h @@ -1,13 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ /* * Header file for SHA hardware acceleration * * Copyright (c) 2012 Samsung Electronics - * - * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __HW_SHA_H #define __HW_SHA_H +#include + +/** + * Computes hash value of input pbuf using h/w acceleration + * + * @param in_addr A pointer to the input buffer + * @param bufleni Byte length of input buffer + * @param out_addr A pointer to the output buffer. When complete + * 64 bytes are copied to pout[0]...pout[63]. Thus, a user + * should allocate at least 64 bytes at pOut in advance. + * @param chunk_size chunk size for sha512 + */ +void hw_sha512(const uchar *in_addr, uint buflen, uchar *out_addr, + uint chunk_size); +/** + * Computes hash value of input pbuf using h/w acceleration + * + * @param in_addr A pointer to the input buffer + * @param bufleni Byte length of input buffer + * @param out_addr A pointer to the output buffer. When complete + * 48 bytes are copied to pout[0]...pout[47]. Thus, a user + * should allocate at least 48 bytes at pOut in advance. + * @param chunk_size chunk size for sha384 + */ +void hw_sha384(const uchar *in_addr, uint buflen, uchar *out_addr, + uint chunk_size); /** * Computes hash value of input pbuf using h/w acceleration @@ -19,8 +44,8 @@ * should allocate at least 32 bytes at pOut in advance. * @param chunk_size chunk size for sha256 */ -void hw_sha256(const uchar * in_addr, uint buflen, - uchar * out_addr, uint chunk_size); +void hw_sha256(const uchar *in_addr, uint buflen, uchar *out_addr, + uint chunk_size); /** * Computes hash value of input pbuf using h/w acceleration @@ -32,6 +57,45 @@ void hw_sha256(const uchar * in_addr, uint buflen, * should allocate at least 32 bytes at pOut in advance. * @param chunk_size chunk_size for sha1 */ -void hw_sha1(const uchar * in_addr, uint buflen, - uchar * out_addr, uint chunk_size); +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