49 lines
1.5 KiB
C
49 lines
1.5 KiB
C
/*
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* Copyright (C) 2016 Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _FSCRYPTO_SEC_H
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#define _FSCRYPTO_SEC_H
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#include <crypto/sha.h>
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#ifdef CONFIG_CRYPTO_FIPS
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#include <crypto/rng.h>
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#endif /* CONFIG CRYPTO_FIPS */
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/*
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* CONSTANT ONLY FOR INTERNAL
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*/
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#define HMAC_SIZE SHA256_DIGEST_SIZE
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/*
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* CONSTANT USED BY OUT OF CRYPTO_ODE
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*/
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#define FS_ESTIMATED_NONCE_SIZE (FS_AES_256_XTS_KEY_SIZE + HMAC_SIZE)
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#define FS_KEY_DERIVATION_NONCE_SIZE 96
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#define FS_RNG_SEED_SIZE 16
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int fscrypt_sec_get_key_aes(const char *source_data, const char *source_key, char *raw_key);
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int fscrypt_sec_set_key_aes(char *save_key_data, const char *master_key_desc);
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int __init fscrypt_sec_crypto_init(void);
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void __exit fscrypt_sec_crypto_exit(void);
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#ifdef CONFIG_CRYPTO_FIPS
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struct crypto_rng *fscrypt_sec_alloc_rng(void);
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void fscrypt_sec_free_rng(struct crypto_rng *rng);
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#endif /* CONFIG CRYPTO_FIPS */
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#endif /* _FSCRYPTO_SEC_H */
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