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92 lines
2.5 KiB
92 lines
2.5 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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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. <[email protected]> |
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*/ |
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#include <crypto/internal/hash.h> |
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#include <linux/types.h> |
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#include <linux/string.h> |
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#include <crypto/sha2.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 <[email protected]>"); |
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MODULE_AUTHOR("Ard Biesheuvel <[email protected]>"); |
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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(u64 *digest, const void *data, |
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unsigned int num_blks); |
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EXPORT_SYMBOL(sha512_block_data_order); |
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static void __sha512_block_data_order(struct sha512_state *sst, u8 const *src, |
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int blocks) |
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{ |
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sha512_block_data_order(sst->state, src, blocks); |
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} |
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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_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_data_order); |
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sha512_base_do_finalize(desc, __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_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_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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