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53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
// SPDX-License-Identifier: LGPL-2.1-or-later
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/*
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* crypto backend implementation
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*
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* Copyright (C) 2010-2025 Red Hat, Inc. All rights reserved.
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* Copyright (C) 2010-2025 Milan Broz
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*/
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#ifndef _CRYPTO_BACKEND_INTERNAL_H
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#define _CRYPTO_BACKEND_INTERNAL_H
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#include "crypto_backend.h"
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/* Internal PBKDF2 implementation */
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int pkcs5_pbkdf2(const char *hash,
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const char *P, size_t Plen,
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const char *S, size_t Slen,
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unsigned int c,
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unsigned int dkLen, char *DK,
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unsigned int hash_block_size);
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/* Argon2 implementation wrapper */
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int argon2(const char *type, const char *password, size_t password_length,
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const char *salt, size_t salt_length,
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char *key, size_t key_length,
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uint32_t iterations, uint32_t memory, uint32_t parallel);
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/* Block ciphers: fallback to kernel crypto API */
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struct crypt_cipher_kernel {
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int tfmfd;
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int opfd;
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};
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int crypt_cipher_init_kernel(struct crypt_cipher_kernel *ctx, const char *name,
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const char *mode, const void *key, size_t key_length);
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int crypt_cipher_encrypt_kernel(struct crypt_cipher_kernel *ctx,
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const char *in, char *out, size_t length,
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const char *iv, size_t iv_length);
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int crypt_cipher_decrypt_kernel(struct crypt_cipher_kernel *ctx,
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const char *in, char *out, size_t length,
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const char *iv, size_t iv_length);
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void crypt_cipher_destroy_kernel(struct crypt_cipher_kernel *ctx);
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int crypt_bitlk_decrypt_key_kernel(const void *key, size_t key_length,
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const char *in, char *out, size_t length,
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const char *iv, size_t iv_length,
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const char *tag, size_t tag_length);
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/* Internal implementation for constant time memory comparison */
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int crypt_internal_memeq(const void *m1, const void *m2, size_t n);
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#endif /* _CRYPTO_BACKEND_INTERNAL_H */
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