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sqlcipher.h
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103 lines (91 loc) · 4.21 KB
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/*
** SQLCipher
** sqlcipher.h developed by Stephen Lombardo (Zetetic LLC)
** sjlombardo at zetetic dot net
** http://zetetic.net
**
** Copyright (c) 2008, ZETETIC LLC
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** * Neither the name of the ZETETIC LLC nor the
** names of its contributors may be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY ZETETIC LLC ''AS IS'' AND ANY
** EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
** WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
** DISCLAIMED. IN NO EVENT SHALL ZETETIC LLC BE LIABLE FOR ANY
** DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
** (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
** LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
** ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
** SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**
*/
/* BEGIN SQLCIPHER */
#ifdef SQLITE_HAS_CODEC
#ifndef SQLCIPHER_H
#define SQLCIPHER_H
#include "sqlite3.h"
#define SQLCIPHER_HMAC_SHA1 0
#define SQLCIPHER_HMAC_SHA1_LABEL "HMAC_SHA1"
#define SQLCIPHER_HMAC_SHA256 1
#define SQLCIPHER_HMAC_SHA256_LABEL "HMAC_SHA256"
#define SQLCIPHER_HMAC_SHA512 2
#define SQLCIPHER_HMAC_SHA512_LABEL "HMAC_SHA512"
#define SQLCIPHER_PBKDF2_HMAC_SHA1 0
#define SQLCIPHER_PBKDF2_HMAC_SHA1_LABEL "PBKDF2_HMAC_SHA1"
#define SQLCIPHER_PBKDF2_HMAC_SHA256 1
#define SQLCIPHER_PBKDF2_HMAC_SHA256_LABEL "PBKDF2_HMAC_SHA256"
#define SQLCIPHER_PBKDF2_HMAC_SHA512 2
#define SQLCIPHER_PBKDF2_HMAC_SHA512_LABEL "PBKDF2_HMAC_SHA512"
typedef struct {
int (*activate)(void *ctx);
int (*deactivate)(void *ctx);
const char* (*get_provider_name)(void *ctx);
int (*add_random)(void *ctx, void *buffer, int length);
int (*random)(void *ctx, void *buffer, int length);
int (*hmac)(void *ctx, int algorithm, unsigned char *hmac_key, int key_sz, unsigned char *in, int in_sz, unsigned char *in2, int in2_sz, unsigned char *out);
int (*kdf)(void *ctx, int algorithm, const unsigned char *pass, int pass_sz, unsigned char* salt, int salt_sz, int workfactor, int key_sz, unsigned char *key);
int (*cipher)(void *ctx, int mode, unsigned char *key, int key_sz, unsigned char *iv, unsigned char *in, int in_sz, unsigned char *out);
const char* (*get_cipher)(void *ctx);
int (*get_key_sz)(void *ctx);
int (*get_iv_sz)(void *ctx);
int (*get_block_sz)(void *ctx);
int (*get_hmac_sz)(void *ctx, int algorithm);
int (*ctx_init)(void **ctx);
int (*ctx_free)(void **ctx);
int (*fips_status)(void *ctx);
const char* (*get_provider_version)(void *ctx);
} sqlcipher_provider;
/* utility functions */
void* sqlcipher_malloc(sqlite_uint64);
void sqlcipher_mlock(void *, sqlite_uint64);
void sqlcipher_munlock(void *, sqlite_uint64);
void* sqlcipher_memset(void *, unsigned char, sqlite_uint64);
int sqlcipher_ismemset(const void *, unsigned char, sqlite_uint64);
int sqlcipher_memcmp(const void *, const void *, int);
void sqlcipher_free(void *, sqlite_uint64);
char* sqlcipher_version();
/* provider interfaces */
int sqlcipher_register_provider(sqlcipher_provider *);
sqlcipher_provider* sqlcipher_get_provider(void);
#define SQLCIPHER_MUTEX_PROVIDER 0
#define SQLCIPHER_MUTEX_PROVIDER_ACTIVATE 1
#define SQLCIPHER_MUTEX_PROVIDER_RAND 2
#define SQLCIPHER_MUTEX_RESERVED1 3
#define SQLCIPHER_MUTEX_RESERVED2 4
#define SQLCIPHER_MUTEX_RESERVED3 5
#define SQLCIPHER_MUTEX_COUNT 6
sqlite3_mutex* sqlcipher_mutex(int);
#endif
#endif
/* END SQLCIPHER */