summaryrefslogtreecommitdiff
path: root/arch/s390/crypto/sha3_512_s390.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/s390/crypto/sha3_512_s390.c')
-rw-r--r--arch/s390/crypto/sha3_512_s390.c154
1 files changed, 0 insertions, 154 deletions
diff --git a/arch/s390/crypto/sha3_512_s390.c b/arch/s390/crypto/sha3_512_s390.c
deleted file mode 100644
index 06c142ed9bb1..000000000000
--- a/arch/s390/crypto/sha3_512_s390.c
+++ /dev/null
@@ -1,154 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * Cryptographic API.
- *
- * s390 implementation of the SHA512 and SHA384 Secure Hash Algorithm.
- *
- * Copyright IBM Corp. 2019
- * Author(s): Joerg Schmidbauer (jschmidb@de.ibm.com)
- */
-#include <crypto/internal/hash.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/cpufeature.h>
-#include <crypto/sha3.h>
-#include <asm/cpacf.h>
-
-#include "sha.h"
-
-static int sha3_512_init(struct shash_desc *desc)
-{
- struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
-
- memset(sctx->state, 0, sizeof(sctx->state));
- sctx->count = 0;
- sctx->func = CPACF_KIMD_SHA3_512;
-
- return 0;
-}
-
-static int sha3_512_export(struct shash_desc *desc, void *out)
-{
- struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
- struct sha3_state *octx = out;
-
- octx->rsiz = sctx->count;
- octx->rsizw = sctx->count >> 32;
-
- memcpy(octx->st, sctx->state, sizeof(octx->st));
- memcpy(octx->buf, sctx->buf, sizeof(octx->buf));
-
- return 0;
-}
-
-static int sha3_512_import(struct shash_desc *desc, const void *in)
-{
- struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
- const struct sha3_state *ictx = in;
-
- if (unlikely(ictx->rsizw))
- return -ERANGE;
- sctx->count = ictx->rsiz;
-
- memcpy(sctx->state, ictx->st, sizeof(ictx->st));
- memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf));
- sctx->func = CPACF_KIMD_SHA3_512;
-
- return 0;
-}
-
-static int sha3_384_import(struct shash_desc *desc, const void *in)
-{
- struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
- const struct sha3_state *ictx = in;
-
- if (unlikely(ictx->rsizw))
- return -ERANGE;
- sctx->count = ictx->rsiz;
-
- memcpy(sctx->state, ictx->st, sizeof(ictx->st));
- memcpy(sctx->buf, ictx->buf, sizeof(ictx->buf));
- sctx->func = CPACF_KIMD_SHA3_384;
-
- return 0;
-}
-
-static struct shash_alg sha3_512_alg = {
- .digestsize = SHA3_512_DIGEST_SIZE,
- .init = sha3_512_init,
- .update = s390_sha_update,
- .final = s390_sha_final,
- .export = sha3_512_export,
- .import = sha3_512_import,
- .descsize = sizeof(struct s390_sha_ctx),
- .statesize = sizeof(struct sha3_state),
- .base = {
- .cra_name = "sha3-512",
- .cra_driver_name = "sha3-512-s390",
- .cra_priority = 300,
- .cra_blocksize = SHA3_512_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-};
-
-MODULE_ALIAS_CRYPTO("sha3-512");
-
-static int sha3_384_init(struct shash_desc *desc)
-{
- struct s390_sha_ctx *sctx = shash_desc_ctx(desc);
-
- memset(sctx->state, 0, sizeof(sctx->state));
- sctx->count = 0;
- sctx->func = CPACF_KIMD_SHA3_384;
-
- return 0;
-}
-
-static struct shash_alg sha3_384_alg = {
- .digestsize = SHA3_384_DIGEST_SIZE,
- .init = sha3_384_init,
- .update = s390_sha_update,
- .final = s390_sha_final,
- .export = sha3_512_export, /* same as for 512 */
- .import = sha3_384_import, /* function code different! */
- .descsize = sizeof(struct s390_sha_ctx),
- .statesize = sizeof(struct sha3_state),
- .base = {
- .cra_name = "sha3-384",
- .cra_driver_name = "sha3-384-s390",
- .cra_priority = 300,
- .cra_blocksize = SHA3_384_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct s390_sha_ctx),
- .cra_module = THIS_MODULE,
- }
-};
-
-MODULE_ALIAS_CRYPTO("sha3-384");
-
-static int __init init(void)
-{
- int ret;
-
- if (!cpacf_query_func(CPACF_KIMD, CPACF_KIMD_SHA3_512))
- return -ENODEV;
- ret = crypto_register_shash(&sha3_512_alg);
- if (ret < 0)
- goto out;
- ret = crypto_register_shash(&sha3_384_alg);
- if (ret < 0)
- crypto_unregister_shash(&sha3_512_alg);
-out:
- return ret;
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_shash(&sha3_512_alg);
- crypto_unregister_shash(&sha3_384_alg);
-}
-
-module_cpu_feature_match(S390_CPU_FEATURE_MSA, init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("SHA3-512 and SHA3-384 Secure Hash Algorithm");