95 lines
2.6 KiB
C
95 lines
2.6 KiB
C
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/*
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* Linux/arm64 port of the OpenSSL SHA512 implementation for AArch64
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*
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* Copyright (c) 2016 Linaro Ltd. <ard.biesheuvel@linaro.org>
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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 <crypto/internal/hash.h>
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#include <linux/cryptohash.h>
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#include <linux/types.h>
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#include <linux/string.h>
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#include <crypto/sha.h>
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#include <crypto/sha512_base.h>
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#include <asm/neon.h>
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MODULE_DESCRIPTION("SHA-384/SHA-512 secure hash for arm64");
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MODULE_AUTHOR("Andy Polyakov <appro@openssl.org>");
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MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS_CRYPTO("sha384");
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MODULE_ALIAS_CRYPTO("sha512");
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asmlinkage void sha512_block_data_order(u32 *digest, const void *data,
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unsigned int num_blks);
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static int sha512_update(struct shash_desc *desc, const u8 *data,
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unsigned int len)
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{
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return sha512_base_do_update(desc, data, len,
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(sha512_block_fn *)sha512_block_data_order);
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}
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static int sha512_finup(struct shash_desc *desc, const u8 *data,
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unsigned int len, u8 *out)
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{
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if (len)
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sha512_base_do_update(desc, data, len,
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(sha512_block_fn *)sha512_block_data_order);
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sha512_base_do_finalize(desc,
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(sha512_block_fn *)sha512_block_data_order);
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return sha512_base_finish(desc, out);
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}
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static int sha512_final(struct shash_desc *desc, u8 *out)
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{
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return sha512_finup(desc, NULL, 0, out);
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}
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static struct shash_alg algs[] = { {
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.digestsize = SHA512_DIGEST_SIZE,
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.init = sha512_base_init,
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.update = sha512_update,
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.final = sha512_final,
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.finup = sha512_finup,
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.descsize = sizeof(struct sha512_state),
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.base.cra_name = "sha512",
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.base.cra_driver_name = "sha512-arm64",
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.base.cra_priority = 150,
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.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
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.base.cra_blocksize = SHA512_BLOCK_SIZE,
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.base.cra_module = THIS_MODULE,
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}, {
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.digestsize = SHA384_DIGEST_SIZE,
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.init = sha384_base_init,
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.update = sha512_update,
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.final = sha512_final,
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.finup = sha512_finup,
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.descsize = sizeof(struct sha512_state),
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.base.cra_name = "sha384",
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.base.cra_driver_name = "sha384-arm64",
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.base.cra_priority = 150,
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.base.cra_flags = CRYPTO_ALG_TYPE_SHASH,
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.base.cra_blocksize = SHA384_BLOCK_SIZE,
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.base.cra_module = THIS_MODULE,
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} };
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static int __init sha512_mod_init(void)
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{
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return crypto_register_shashes(algs, ARRAY_SIZE(algs));
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}
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static void __exit sha512_mod_fini(void)
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{
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crypto_unregister_shashes(algs, ARRAY_SIZE(algs));
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}
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module_init(sha512_mod_init);
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module_exit(sha512_mod_fini);
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