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/sha1.h>
15 #include <crypto/sha2.h>
16 #include <crypto/sha3.h>
17
18 /* must be big enough for the largest SHA variant */
19 #define SHA3_STATE_SIZE 200
20 #define CPACF_MAX_PARMBLOCK_SIZE SHA3_STATE_SIZE
21 #define SHA_MAX_BLOCK_SIZE SHA3_224_BLOCK_SIZE
22
23 struct s390_sha_ctx {
24 u64 count; /* message length in bytes */
25 u32 state[CPACF_MAX_PARMBLOCK_SIZE / sizeof(u32)];
26 u8 buf[SHA_MAX_BLOCK_SIZE];
27 int func; /* KIMD function to use */
28 };
29
30 struct shash_desc;
31
32 int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len);
33 int s390_sha_final(struct shash_desc *desc, u8 *out);
34
35 #endif
36
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