1 /* 2 * Copyright (c) 2001-2019, Arm Limited and Contributors. All rights reserved. 3 * 4 * SPDX-License-Identifier: BSD-3-Clause 5 */ 6 7 #ifndef _HASH_DRIVER_H 8 #define _HASH_DRIVER_H 9 10 #include "driver_defs.h" 11 12 /****************************************************************************** 13 * TYPE DEFINITIONS 14 ******************************************************************************/ 15 16 /* The context data-base used by the Hash functions on the low level */ 17 typedef struct HashContext { 18 /* mode: SHA1, SHA224, SHA256 */ 19 hashMode_t mode; 20 21 /* last block ack */ 22 uint32_t isLastBlockProcessed; 23 24 /* hash data */ 25 uint32_t digest[MAX_DIGEST_SIZE_WORDS]; 26 27 /* The buffer that contains the size of so far digested message in the hardware. 28 For SHA1, sha-224 and SHA-256 it is 64 bits, 29 For SHA-384 and SHA-512 it is 128 bits */ 30 uint32_t totalDataSizeProcessed[4]; 31 32 /* the follwing ia used only by soft sha512 */ 33 34 uint32_t valid_tag; 35 36 /* the size of the Block size in bytes according to the currently running SHA algorithm (64 or 108) */ 37 uint32_t blockSizeInBytes; 38 39 /* The number of bytes in the previous update */ 40 uint32_t prevDataInSize; 41 42 /* A block buffer used for all cases where the update data size 43 is not aligned to a block size - we cannot perform the block, 44 therefore the first block is always loaded from this buffer */ 45 uint32_t prevDataIn[HASH_SHA512_BLOCK_SIZE_IN_WORDS]; 46 47 /* function pointers for llf hash operations */ 48 llf_hash_init_operation_func llfHashInitFuncP; 49 llf_hash_update_operation_func llfHashUpdateFuncP; 50 llf_hash_finish_operation_func llfHashFinishFuncP; 51 52 } HashContext_t; 53 54 55 /* HW hash for sha1, sha224 and sha256 */ 56 drvError_t InitHashDrv(void *pCtx); 57 drvError_t ProcessHashDrv(void *pCtx, CCBuffInfo_t *pInputBuffInfo, uint32_t dataInSize); 58 drvError_t FinishHashDrv(void *pCtx); 59 60 /* soft hash for sha384 and sha512 */ 61 drvError_t InitSwHash512(void *pCtx); 62 drvError_t ProcessSwHash512(void *pCtx, CCBuffInfo_t *pInputBuffInfo, uint32_t dataInSize ); 63 drvError_t FinishSwHash512(void *pCtx); 64 65 #endif /* _HASH_DRIVER_H */ 66 67
