arch/s390/crypto/sha.h

   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