support for delphi 11.1
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Razor12911
233
contrib/mORMot/SQLite3/amalgamation/ciphers/cipher_common.h
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233
contrib/mORMot/SQLite3/amalgamation/ciphers/cipher_common.h
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/*
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** Name: cipher_common.h
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** Purpose: Header for the ciphers of SQLite3 Multiple Ciphers
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** Author: Ulrich Telle
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** Created: 2020-02-02
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** Copyright: (c) 2006-2020 Ulrich Telle
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** License: MIT
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*/
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#ifndef CIPHER_COMMON_H_
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#define CIPHER_COMMON_H_
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#include "sqlite3mc.h"
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/*
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// ATTENTION: Macro similar to that in pager.c
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// TODO: Check in case of new version of SQLite
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*/
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#define WX_PAGER_MJ_PGNO(x) ((PENDING_BYTE/(x))+1)
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#define CODEC_TYPE_DEFAULT CODEC_TYPE_CHACHA20
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#ifndef CODEC_TYPE
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#define CODEC_TYPE CODEC_TYPE_DEFAULT
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#endif
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#if CODEC_TYPE < 1 || CODEC_TYPE > CODEC_TYPE_MAX
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#error "Invalid codec type selected"
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#endif
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#define MAXKEYLENGTH 32
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#define KEYLENGTH_AES128 16
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#define KEYLENGTH_AES256 32
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#define KEYSALT_LENGTH 16
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#define CODEC_SHA_ITER 4001
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typedef struct _Codec
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{
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int m_isEncrypted;
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int m_hmacCheck;
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/* Read cipher */
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int m_hasReadCipher;
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int m_readCipherType;
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void* m_readCipher;
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int m_readReserved;
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/* Write cipher */
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int m_hasWriteCipher;
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int m_writeCipherType;
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void* m_writeCipher;
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int m_writeReserved;
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sqlite3* m_db; /* Pointer to DB */
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Btree* m_bt; /* Pointer to B-tree used by DB */
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BtShared* m_btShared; /* Pointer to shared B-tree used by DB */
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unsigned char m_page[SQLITE_MAX_PAGE_SIZE + 24];
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int m_pageSize;
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int m_reserved;
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int m_hasKeySalt;
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unsigned char m_keySalt[KEYSALT_LENGTH];
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} Codec;
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#define CIPHER_PARAMS_SENTINEL { "", 0, 0, 0, 0 }
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#define CIPHER_PAGE1_OFFSET 24
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typedef struct _CipherParams
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{
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char* m_name;
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int m_value;
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int m_default;
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int m_minValue;
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int m_maxValue;
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} CipherParams;
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typedef struct _CodecParameter
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{
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char* m_name;
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int m_id;
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CipherParams* m_params;
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} CodecParameter;
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typedef void* (*AllocateCipher_t)(sqlite3* db);
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typedef void (*FreeCipher_t)(void* cipher);
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typedef void (*CloneCipher_t)(void* cipherTo, void* cipherFrom);
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typedef int (*CompareCipher_t)(void* cipher1, void* cipher2);
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typedef int (*GetLegacy_t)(void* cipher);
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typedef int (*GetPageSize_t)(void* cipher);
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typedef int (*GetReserved_t)(void* cipher);
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typedef unsigned char* (*GetSalt_t)(void* cipher);
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typedef void (*GenerateKey_t)(void* cipher, BtShared* pBt, char* userPassword, int passwordLength, int rekey, unsigned char* cipherSalt);
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typedef int (*EncryptPage_t)(void* cipher, int page, unsigned char* data, int len, int reserved);
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typedef int (*DecryptPage_t)(void* cipher, int page, unsigned char* data, int len, int reserved, int hmacCheck);
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typedef struct _CodecDescriptor
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{
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char m_name[32];
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AllocateCipher_t m_allocateCipher;
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FreeCipher_t m_freeCipher;
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CloneCipher_t m_cloneCipher;
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CompareCipher_t m_compareCipher;
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GetLegacy_t m_getLegacy;
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GetPageSize_t m_getPageSize;
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GetReserved_t m_getReserved;
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GetSalt_t m_getSalt;
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GenerateKey_t m_generateKey;
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EncryptPage_t m_encryptPage;
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DecryptPage_t m_decryptPage;
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} CipherDescriptor;
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SQLITE_PRIVATE int sqlite3mcGetCipherParameter(CipherParams* cipherParams, const char* paramName);
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SQLITE_PRIVATE int sqlite3mcGetCipherType(sqlite3* db);
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SQLITE_PRIVATE CipherParams* sqlite3mcGetCipherParams(sqlite3* db, int cypherType);
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SQLITE_PRIVATE int sqlite3mcCodecInit(Codec* codec);
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SQLITE_PRIVATE void sqlite3mcCodecTerm(Codec* codec);
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SQLITE_PRIVATE void sqlite3mcClearKeySalt(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcCodecSetup(Codec* codec, int cipherType, char* userPassword, int passwordLength);
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SQLITE_PRIVATE int sqlite3mcSetupWriteCipher(Codec* codec, int cipherType, char* userPassword, int passwordLength);
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SQLITE_PRIVATE void sqlite3mcSetIsEncrypted(Codec* codec, int isEncrypted);
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SQLITE_PRIVATE void sqlite3mcSetReadCipherType(Codec* codec, int cipherType);
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SQLITE_PRIVATE void sqlite3mcSetWriteCipherType(Codec* codec, int cipherType);
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SQLITE_PRIVATE void sqlite3mcSetHasReadCipher(Codec* codec, int hasReadCipher);
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SQLITE_PRIVATE void sqlite3mcSetHasWriteCipher(Codec* codec, int hasWriteCipher);
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SQLITE_PRIVATE void sqlite3mcSetDb(Codec* codec, sqlite3* db);
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SQLITE_PRIVATE void sqlite3mcSetBtree(Codec* codec, Btree* bt);
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SQLITE_PRIVATE void sqlite3mcSetReadReserved(Codec* codec, int reserved);
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SQLITE_PRIVATE void sqlite3mcSetWriteReserved(Codec* codec, int reserved);
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SQLITE_PRIVATE int sqlite3mcIsEncrypted(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcHasReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcHasWriteCipher(Codec* codec);
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SQLITE_PRIVATE Btree* sqlite3mcGetBtree(Codec* codec);
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SQLITE_PRIVATE BtShared* sqlite3mcGetBtShared(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSize(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReadReserved(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetWriteReserved(Codec* codec);
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SQLITE_PRIVATE unsigned char* sqlite3mcGetPageBuffer(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetLegacyReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetLegacyWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSizeReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSizeWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReservedReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReservedWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcReservedEqual(Codec* codec);
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SQLITE_PRIVATE unsigned char* sqlite3mcGetSaltWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcCodecCopy(Codec* codec, Codec* other);
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SQLITE_PRIVATE int sqlite3mcCodecCompare(Codec* codec1, Codec* codec2);
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SQLITE_PRIVATE void sqlite3mcGenerateReadKey(Codec* codec, char* userPassword, int passwordLength, unsigned char* cipherSalt);
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SQLITE_PRIVATE void sqlite3mcGenerateWriteKey(Codec* codec, char* userPassword, int passwordLength, unsigned char* cipherSalt);
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SQLITE_PRIVATE int sqlite3mcEncrypt(Codec* codec, int page, unsigned char* data, int len, int useWriteKey);
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SQLITE_PRIVATE int sqlite3mcDecrypt(Codec* codec, int page, unsigned char* data, int len);
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SQLITE_PRIVATE int sqlite3mcCopyCipher(Codec* codec, int read2write);
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SQLITE_PRIVATE int sqlite3mcCodecSetup(Codec* codec, int cipherType, char* userPassword, int passwordLength);
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SQLITE_PRIVATE int sqlite3mcSetupWriteCipher(Codec* codec, int cipherType, char* userPassword, int passwordLength);
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SQLITE_PRIVATE void sqlite3mcSetIsEncrypted(Codec* codec, int isEncrypted);
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SQLITE_PRIVATE void sqlite3mcSetReadCipherType(Codec* codec, int cipherType);
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SQLITE_PRIVATE void sqlite3mcSetWriteCipherType(Codec* codec, int cipherType);
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SQLITE_PRIVATE void sqlite3mcSetHasReadCipher(Codec* codec, int hasReadCipher);
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SQLITE_PRIVATE void sqlite3mcSetHasWriteCipher(Codec* codec, int hasWriteCipher);
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SQLITE_PRIVATE void sqlite3mcSetDb(Codec* codec, sqlite3* db);
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SQLITE_PRIVATE void sqlite3mcSetBtree(Codec* codec, Btree* bt);
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SQLITE_PRIVATE void sqlite3mcSetReadReserved(Codec* codec, int reserved);
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SQLITE_PRIVATE void sqlite3mcSetWriteReserved(Codec* codec, int reserved);
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SQLITE_PRIVATE int sqlite3mcIsEncrypted(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcHasReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcHasWriteCipher(Codec* codec);
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SQLITE_PRIVATE Btree* sqlite3mcGetBtree(Codec* codec);
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SQLITE_PRIVATE BtShared* sqlite3mcGetBtShared(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSize(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReadReserved(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetWriteReserved(Codec* codec);
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SQLITE_PRIVATE unsigned char* sqlite3mcGetPageBuffer(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetLegacyReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetLegacyWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSizeReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetPageSizeWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReservedReadCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcGetReservedWriteCipher(Codec* codec);
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SQLITE_PRIVATE int sqlite3mcReservedEqual(Codec* codec);
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SQLITE_PRIVATE void sqlite3mcPadPassword(char* password, int pswdlen, unsigned char pswd[32]);
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SQLITE_PRIVATE void sqlite3mcRC4(unsigned char* key, int keylen, unsigned char* textin, int textlen, unsigned char* textout);
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SQLITE_PRIVATE void sqlite3mcGetMD5Binary(unsigned char* data, int length, unsigned char* digest);
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SQLITE_PRIVATE void sqlite3mcGetSHABinary(unsigned char* data, int length, unsigned char* digest);
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SQLITE_PRIVATE void sqlite3mcGenerateInitialVector(int seed, unsigned char iv[16]);
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SQLITE_PRIVATE int sqlite3mcIsHexKey(const unsigned char* hex, int len);
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SQLITE_PRIVATE int sqlite3mcConvertHex2Int(char c);
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SQLITE_PRIVATE void sqlite3mcConvertHex2Bin(const unsigned char* hex, int len, unsigned char* bin);
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SQLITE_PRIVATE int sqlite3mcConfigureFromUri(sqlite3* db, const char *zDbName, int configDefault);
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SQLITE_PRIVATE void sqlite3mcConfigureSQLCipherVersion(sqlite3* db, int configDefault, int legacyVersion);
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SQLITE_PRIVATE int sqlite3mcCodecAttach(sqlite3* db, int nDb, const char* zPath, const void* zKey, int nKey);
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SQLITE_PRIVATE void sqlite3mcCodecGetKey(sqlite3* db, int nDb, void** zKey, int* nKey);
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/* Debugging */
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#if 0
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#define SQLITE3MC_DEBUG
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#define SQLITE3MC_DEBUG_DATA
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#endif
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#ifdef SQLITE3MC_DEBUG
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#define SQLITE3MC_DEBUG_LOG(...) { fprintf(stdout, __VA_ARGS__); fflush(stdout); }
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#else
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#define SQLITE3MC_DEBUG_LOG(...)
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#endif
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#ifdef SQLITE3MC_DEBUG_DATA
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#define SQLITE3MC_DEBUG_HEX(DESC,BUFFER,LEN) \
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{ \
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int count; \
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printf(DESC); \
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for (count = 0; count < LEN; ++count) \
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{ \
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if (count % 16 == 0) printf("\n%05x: ", count); \
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printf("%02x ", ((unsigned char*) BUFFER)[count]); \
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} \
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printf("\n"); \
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fflush(stdout); \
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}
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#else
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#define SQLITE3MC_DEBUG_HEX(DESC,BUFFER,LEN)
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#endif
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#endif
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