1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Cryptographic API. 4 * 5 * s390 generic implementation of the SHA Secure Hash Algorithms. 6 * 7 * Copyright IBM Corp. 2007 8 * Author(s): Jan Glauber (jang@de.ibm.com) 9 */ 10 #ifndef _CRYPTO_ARCH_S390_SHA_H 11 #define _CRYPTO_ARCH_S390_SHA_H 12 13 #include <crypto/sha2.h> 14 #include <crypto/sha3.h> 15 #include <linux/types.h> 16 17 /* must be big enough for the largest SHA variant */ 18 #define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE 19 #define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE 20 #define S390_SHA_CTX_SIZE sizeof(struct s390_sha_ctx) 21 22 struct s390_sha_ctx { 23 u64 count; /* message length in bytes */ 24 union { 25 u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)]; 26 struct { 27 u64 state[SHA512_DIGEST_SIZE / sizeof(u64)]; 28 u64 count_hi; 29 } sha512; 30 }; 31 int func; /* KIMD function to use */ 32 bool first_message_part; 33 }; 34 35 struct shash_desc; 36 37 int s390_sha_update_blocks(struct shash_desc *desc, const u8 *data, 38 unsigned int len); 39 int s390_sha_finup(struct shash_desc *desc, const u8 *src, unsigned int len, 40 u8 *out); 41 42 #endif 43