1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0+ */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * Cryptographic API. 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * s390 generic implementation of the SHA Secure Hash Algorithms. 6*4882a593Smuzhiyun * 7*4882a593Smuzhiyun * Copyright IBM Corp. 2007 8*4882a593Smuzhiyun * Author(s): Jan Glauber (jang@de.ibm.com) 9*4882a593Smuzhiyun */ 10*4882a593Smuzhiyun #ifndef _CRYPTO_ARCH_S390_SHA_H 11*4882a593Smuzhiyun #define _CRYPTO_ARCH_S390_SHA_H 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <linux/crypto.h> 14*4882a593Smuzhiyun #include <crypto/sha.h> 15*4882a593Smuzhiyun #include <crypto/sha3.h> 16*4882a593Smuzhiyun 17*4882a593Smuzhiyun /* must be big enough for the largest SHA variant */ 18*4882a593Smuzhiyun #define SHA3_STATE_SIZE 200 19*4882a593Smuzhiyun #define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE 20*4882a593Smuzhiyun #define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun struct s390_sha_ctx { 23*4882a593Smuzhiyun u64 count; /* message length in bytes */ 24*4882a593Smuzhiyun u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)]; 25*4882a593Smuzhiyun u8 buf[SHA_MAX_BLOCK_SIZE]; 26*4882a593Smuzhiyun int func; /* KIMD function to use */ 27*4882a593Smuzhiyun }; 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun struct shash_desc; 30*4882a593Smuzhiyun 31*4882a593Smuzhiyun int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len); 32*4882a593Smuzhiyun int s390_sha_final(struct shash_desc *desc, u8 *out); 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #endif 35