291dc7c099
Exploit the System z10 hardware acceleration for SHA512. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
35 lines
1,008 B
C
35 lines
1,008 B
C
/*
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* Cryptographic API.
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*
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* s390 generic implementation of the SHA Secure Hash Algorithms.
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*
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* Copyright IBM Corp. 2007
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* Author(s): Jan Glauber (jang@de.ibm.com)
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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*/
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#ifndef _CRYPTO_ARCH_S390_SHA_H
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#define _CRYPTO_ARCH_S390_SHA_H
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#include <linux/crypto.h>
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#include <crypto/sha.h>
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/* must be big enough for the largest SHA variant */
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#define SHA_MAX_STATE_SIZE 16
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#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE
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struct s390_sha_ctx {
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u64 count; /* message length in bytes */
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u32 state[SHA_MAX_STATE_SIZE];
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u8 buf[2 * SHA_MAX_BLOCK_SIZE];
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int func; /* KIMD function to use */
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};
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void s390_sha_update(struct crypto_tfm *tfm, const u8 *data, unsigned int len);
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void s390_sha_final(struct crypto_tfm *tfm, u8 *out);
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#endif
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