79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* BLAKE2s digest algorithm, ARM scalar implementation
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*
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* Copyright 2020 Google LLC
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*/
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#include <crypto/internal/blake2s.h>
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#include <crypto/internal/hash.h>
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#include <linux/module.h>
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/* defined in blake2s-core.S */
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EXPORT_SYMBOL(blake2s_compress_arch);
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static int crypto_blake2s_update_arm(struct shash_desc *desc,
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const u8 *in, unsigned int inlen)
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{
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return crypto_blake2s_update(desc, in, inlen, blake2s_compress_arch);
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}
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static int crypto_blake2s_final_arm(struct shash_desc *desc, u8 *out)
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{
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return crypto_blake2s_final(desc, out, blake2s_compress_arch);
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}
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#define BLAKE2S_ALG(name, driver_name, digest_size) \
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{ \
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.base.cra_name = name, \
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.base.cra_driver_name = driver_name, \
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.base.cra_priority = 200, \
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.base.cra_flags = CRYPTO_ALG_OPTIONAL_KEY, \
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.base.cra_blocksize = BLAKE2S_BLOCK_SIZE, \
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.base.cra_ctxsize = sizeof(struct blake2s_tfm_ctx), \
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.base.cra_module = THIS_MODULE, \
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.digestsize = digest_size, \
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.setkey = crypto_blake2s_setkey, \
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.init = crypto_blake2s_init, \
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.update = crypto_blake2s_update_arm, \
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.final = crypto_blake2s_final_arm, \
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.descsize = sizeof(struct blake2s_state), \
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}
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static struct shash_alg blake2s_arm_algs[] = {
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BLAKE2S_ALG("blake2s-128", "blake2s-128-arm", BLAKE2S_128_HASH_SIZE),
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BLAKE2S_ALG("blake2s-160", "blake2s-160-arm", BLAKE2S_160_HASH_SIZE),
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BLAKE2S_ALG("blake2s-224", "blake2s-224-arm", BLAKE2S_224_HASH_SIZE),
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BLAKE2S_ALG("blake2s-256", "blake2s-256-arm", BLAKE2S_256_HASH_SIZE),
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};
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static int __init blake2s_arm_mod_init(void)
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{
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return IS_REACHABLE(CONFIG_CRYPTO_HASH) ?
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crypto_register_shashes(blake2s_arm_algs,
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ARRAY_SIZE(blake2s_arm_algs)) : 0;
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}
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static void __exit blake2s_arm_mod_exit(void)
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{
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if (IS_REACHABLE(CONFIG_CRYPTO_HASH))
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crypto_unregister_shashes(blake2s_arm_algs,
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ARRAY_SIZE(blake2s_arm_algs));
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}
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module_init(blake2s_arm_mod_init);
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module_exit(blake2s_arm_mod_exit);
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MODULE_DESCRIPTION("BLAKE2s digest algorithm, ARM scalar implementation");
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MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
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MODULE_ALIAS_CRYPTO("blake2s-128");
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MODULE_ALIAS_CRYPTO("blake2s-128-arm");
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MODULE_ALIAS_CRYPTO("blake2s-160");
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MODULE_ALIAS_CRYPTO("blake2s-160-arm");
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MODULE_ALIAS_CRYPTO("blake2s-224");
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MODULE_ALIAS_CRYPTO("blake2s-224-arm");
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MODULE_ALIAS_CRYPTO("blake2s-256");
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MODULE_ALIAS_CRYPTO("blake2s-256-arm");
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