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 <linux/crypto.h> 14 #include <crypto/sha.h> 15 #include <crypto/sha3.h> 16 17 /* must be big enough for the largest SHA variant */ 18 #define SHA3_STATE_SIZE 200 19 #define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE 20 #define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE 21 22 struct s390_sha_ctx { 23 u64 count; /* message length in bytes */ 24 u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)]; 25 u8 buf[SHA_MAX_BLOCK_SIZE]; 26 int func; /* KIMD function to use */ 27 }; 28 29 struct shash_desc; 30 31 int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len); 32 int s390_sha_final(struct shash_desc *desc, u8 *out); 33 34 #endif 35