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kernel
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linux
[CRYPTO] sha384: Hardware acceleration for s390
Exploit the System z10 hardware acceleration for SHA384.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
authored by
Jan Glauber
and committed by
Herbert Xu
4e2c6d7f
291dc7c0
+54
-9
+50
-7
arch/s390/crypto/sha512_s390.c
+50
-7
arch/s390/crypto/sha512_s390.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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* s390 implementation of the SHA512 and SHA38 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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ctx->func = KIMD_SHA_512;
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}
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static struct crypto_alg alg = {
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static struct crypto_alg sha512_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_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_list = LIST_HEAD_INIT(sha512_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_final = s390_sha_final } }
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};
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MODULE_ALIAS("sha512");
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static void sha384_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] = 0xcbbb9d5dc1059ed8ULL;
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*(__u64 *)&ctx->state[2] = 0x629a292a367cd507ULL;
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*(__u64 *)&ctx->state[4] = 0x9159015a3070dd17ULL;
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*(__u64 *)&ctx->state[6] = 0x152fecd8f70e5939ULL;
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*(__u64 *)&ctx->state[8] = 0x67332667ffc00b31ULL;
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*(__u64 *)&ctx->state[10] = 0x8eb44a8768581511ULL;
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*(__u64 *)&ctx->state[12] = 0xdb0c2e0d64f98fa7ULL;
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*(__u64 *)&ctx->state[14] = 0x47b5481dbefa4fa4ULL;
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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 sha384_alg = {
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.cra_name = "sha384",
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.cra_driver_name = "sha384-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 = SHA384_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(sha384_alg.cra_list),
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.cra_u = { .digest = {
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.dia_digestsize = SHA384_DIGEST_SIZE,
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.dia_init = sha384_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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MODULE_ALIAS("sha384");
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static int __init init(void)
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{
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int ret;
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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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if ((ret = crypto_register_alg(&sha512_alg)) < 0)
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goto out;
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if ((ret = crypto_register_alg(&sha384_alg)) < 0)
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crypto_unregister_alg(&sha512_alg);
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out:
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return ret;
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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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crypto_unregister_alg(&sha512_alg);
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crypto_unregister_alg(&sha384_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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MODULE_DESCRIPTION("SHA512 and SHA-384 Secure Hash Algorithm");
+4
-2
drivers/crypto/Kconfig
+4
-2
drivers/crypto/Kconfig
···
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security against collision attacks.
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config CRYPTO_SHA512_S390
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tristate "SHA512 digest algorithm"
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tristate "SHA384 and SHA512 digest algorithm"
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depends on S390
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select CRYPTO_ALGAPI
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help
···
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SHA512 secure hash standard.
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This version of SHA implements a 512 bit hash with 256 bits of
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security against collision attacks.
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security against collision attacks. The code also includes SHA-384,
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a 384 bit hash with 192 bits of security against collision attacks.
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config CRYPTO_DES_S390
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tristate "DES and Triple DES cipher algorithms"