diff options
Diffstat (limited to 'arch/s390/crypto/sha3_512_s390.c')
| -rw-r--r-- | arch/s390/crypto/sha3_512_s390.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/arch/s390/crypto/sha3_512_s390.c b/arch/s390/crypto/sha3_512_s390.c deleted file mode 100644 index a5c9690eecb1..000000000000 --- a/arch/s390/crypto/sha3_512_s390.c +++ /dev/null @@ -1,157 +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 <asm/cpacf.h> -#include <crypto/internal/hash.h> -#include <crypto/sha3.h> -#include <linux/cpufeature.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/string.h> - -#include "sha.h" - -static int sha3_512_init(struct shash_desc *desc) -{ - struct s390_sha_ctx *sctx = shash_desc_ctx(desc); - - sctx->first_message_part = test_facility(86); - if (!sctx->first_message_part) - 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); - union { - u8 *u8; - u64 *u64; - } p = { .u8 = out }; - int i; - - if (sctx->first_message_part) { - memset(out, 0, SHA3_STATE_SIZE); - return 0; - } - for (i = 0; i < SHA3_STATE_SIZE / 8; i++) - put_unaligned(le64_to_cpu(sctx->sha3.state[i]), p.u64++); - return 0; -} - -static int sha3_512_import(struct shash_desc *desc, const void *in) -{ - struct s390_sha_ctx *sctx = shash_desc_ctx(desc); - union { - const u8 *u8; - const u64 *u64; - } p = { .u8 = in }; - int i; - - for (i = 0; i < SHA3_STATE_SIZE / 8; i++) - sctx->sha3.state[i] = cpu_to_le64(get_unaligned(p.u64++)); - sctx->count = 0; - sctx->first_message_part = 0; - 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); - - sha3_512_import(desc, in); - 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_blocks, - .finup = s390_sha_finup, - .export = sha3_512_export, - .import = sha3_512_import, - .descsize = S390_SHA_CTX_SIZE, - .statesize = SHA3_STATE_SIZE, - .base = { - .cra_name = "sha3-512", - .cra_driver_name = "sha3-512-s390", - .cra_priority = 300, - .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY, - .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); - - sha3_512_init(desc); - 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_blocks, - .finup = s390_sha_finup, - .export = sha3_512_export, /* same as for 512 */ - .import = sha3_384_import, /* function code different! */ - .descsize = S390_SHA_CTX_SIZE, - .statesize = SHA3_STATE_SIZE, - .base = { - .cra_name = "sha3-384", - .cra_driver_name = "sha3-384-s390", - .cra_priority = 300, - .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY, - .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"); |
