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Diffstat (limited to 'arch/s390/crypto/sha.h')
| -rw-r--r-- | arch/s390/crypto/sha.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/s390/crypto/sha.h b/arch/s390/crypto/sha.h new file mode 100644 index 000000000..f4e9dc716 --- /dev/null +++ b/arch/s390/crypto/sha.h @@ -0,0 +1,37 @@ +/* + * Cryptographic API. + * + * s390 generic implementation of the SHA Secure Hash Algorithms. + * + * Copyright IBM Corp. 2007 + * Author(s): Jan Glauber (jang@de.ibm.com) + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + * + */ +#ifndef _CRYPTO_ARCH_S390_SHA_H +#define _CRYPTO_ARCH_S390_SHA_H + +#include <linux/crypto.h> +#include <crypto/sha.h> + +/* must be big enough for the largest SHA variant */ +#define SHA_MAX_STATE_SIZE 16 +#define SHA_MAX_BLOCK_SIZE SHA512_BLOCK_SIZE + +struct s390_sha_ctx { + u64 count; /* message length in bytes */ + u32 state[SHA_MAX_STATE_SIZE]; + u8 buf[2 * SHA_MAX_BLOCK_SIZE]; + int func; /* KIMD function to use */ +}; + +struct shash_desc; + +int s390_sha_update(struct shash_desc *desc, const u8 *data, unsigned int len); +int s390_sha_final(struct shash_desc *desc, u8 *out); + +#endif |