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/*
* Cryptographic API.
*
* s390 implementation of the SHA512 and SHA38 Secure Hash Algorithm.
*
* 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.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/crypto.h>
#include "sha.h"
#include "crypt_s390.h"
static void sha512_init(struct crypto_tfm *tfm)
{
struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm);
*(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL;
*(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL;
*(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL;
*(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL;
*(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL;
*(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL;
*(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL;
*(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL;
ctx->count = 0;
ctx->func = KIMD_SHA_512;
}
static struct crypto_alg sha512_alg = {
.cra_name = "sha512",
.cra_driver_name = "sha512-s390",
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct s390_sha_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(sha512_alg.cra_list),
.cra_u = { .digest = {
.dia_digestsize = SHA512_DIGEST_SIZE,
.dia_init = sha512_init,
.dia_update = s390_sha_update,
.dia_final = s390_sha_final } }
};
MODULE_ALIAS("sha512");
static void sha384_init(struct crypto_tfm *tfm)
{
struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm);
*(__u64 *)&ctx->state[0] = 0xcbbb9d5dc1059ed8ULL;
*(__u64 *)&ctx->state[2] = 0x629a292a367cd507ULL;
*(__u64 *)&ctx->state[4] = 0x9159015a3070dd17ULL;
*(__u64 *)&ctx->state[6] = 0x152fecd8f70e5939ULL;
*(__u64 *)&ctx->state[8] = 0x67332667ffc00b31ULL;
*(__u64 *)&ctx->state[10] = 0x8eb44a8768581511ULL;
*(__u64 *)&ctx->state[12] = 0xdb0c2e0d64f98fa7ULL;
*(__u64 *)&ctx->state[14] = 0x47b5481dbefa4fa4ULL;
ctx->count = 0;
ctx->func = KIMD_SHA_512;
}
static struct crypto_alg sha384_alg = {
.cra_name = "sha384",
.cra_driver_name = "sha384-s390",
.cra_priority = CRYPT_S390_PRIORITY,
.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
.cra_blocksize = SHA384_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct s390_sha_ctx),
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(sha384_alg.cra_list),
.cra_u = { .digest = {
.dia_digestsize = SHA384_DIGEST_SIZE,
.dia_init = sha384_init,
.dia_update = s390_sha_update,
.dia_final = s390_sha_final } }
};
MODULE_ALIAS("sha384");
static int __init init(void)
{
int ret;
if (!crypt_s390_func_available(KIMD_SHA_512))
return -EOPNOTSUPP;
if ((ret = crypto_register_alg(&sha512_alg)) < 0)
goto out;
if ((ret = crypto_register_alg(&sha384_alg)) < 0)
crypto_unregister_alg(&sha512_alg);
out:
return ret;
}
static void __exit fini(void)
{
crypto_unregister_alg(&sha512_alg);
crypto_unregister_alg(&sha384_alg);
}
module_init(init);
module_exit(fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA512 and SHA-384 Secure Hash Algorithm");
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