72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
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/*
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* Cryptographic API.
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*
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* s390 implementation of the SHA512 Secure Hash Algorithm.
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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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#include <linux/init.h>
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#include <linux/module.h>
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#include <linux/crypto.h>
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#include "sha.h"
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#include "crypt_s390.h"
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static void sha512_init(struct crypto_tfm *tfm)
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{
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struct s390_sha_ctx *ctx = crypto_tfm_ctx(tfm);
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*(__u64 *)&ctx->state[0] = 0x6a09e667f3bcc908ULL;
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*(__u64 *)&ctx->state[2] = 0xbb67ae8584caa73bULL;
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*(__u64 *)&ctx->state[4] = 0x3c6ef372fe94f82bULL;
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*(__u64 *)&ctx->state[6] = 0xa54ff53a5f1d36f1ULL;
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*(__u64 *)&ctx->state[8] = 0x510e527fade682d1ULL;
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*(__u64 *)&ctx->state[10] = 0x9b05688c2b3e6c1fULL;
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*(__u64 *)&ctx->state[12] = 0x1f83d9abfb41bd6bULL;
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*(__u64 *)&ctx->state[14] = 0x5be0cd19137e2179ULL;
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ctx->count = 0;
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ctx->func = KIMD_SHA_512;
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}
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static struct crypto_alg alg = {
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.cra_name = "sha512",
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.cra_driver_name = "sha512-s390",
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.cra_priority = CRYPT_S390_PRIORITY,
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.cra_flags = CRYPTO_ALG_TYPE_DIGEST,
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.cra_blocksize = SHA512_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct s390_sha_ctx),
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.cra_module = THIS_MODULE,
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.cra_list = LIST_HEAD_INIT(alg.cra_list),
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.cra_u = { .digest = {
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.dia_digestsize = SHA512_DIGEST_SIZE,
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.dia_init = sha512_init,
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.dia_update = s390_sha_update,
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.dia_final = s390_sha_final } }
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};
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static int __init init(void)
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{
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if (!crypt_s390_func_available(KIMD_SHA_512))
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return -EOPNOTSUPP;
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return crypto_register_alg(&alg);
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}
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static void __exit fini(void)
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{
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crypto_unregister_alg(&alg);
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}
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module_init(init);
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module_exit(fini);
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MODULE_ALIAS("sha512");
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MODULE_LICENSE("GPL");
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MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm");
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