1 files changed, 116 insertions, 0 deletions
diff --git a/Plugins/DbSqliteWx/codec.h b/Plugins/DbSqliteWx/codec.h
new file mode 100644
index 0000000..d120d7b
--- /dev/null
+++ b/Plugins/DbSqliteWx/codec.h
@@ -0,0 +1,116 @@
+/*
+///////////////////////////////////////////////////////////////////////////////
+// Name:        codec.h
+// Purpose:     
+// Author:      Ulrich Telle
+// Modified by:
+// Created:     2006-12-06
+// Copyright:   (c) Ulrich Telle
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+/// \file codec.h Interface of the codec class
+*/
+
+#ifndef _CODEC_H_
+#define _CODEC_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__BORLANDC__)
+#define __STDC__ 1
+#endif
+
+#if defined(__BORLANDC__)
+#undef __STDC__
+#endif
+
+/*
+// ATTENTION: Macro similar to that in pager.c
+// TODO: Check in case of new version of SQLite
+*/
+#define WX_PAGER_MJ_PGNO(x) ((PENDING_BYTE/(x))+1)
+
+#ifdef __cplusplus
+}  /* End of the 'extern "C"' block */
+#endif
+
+#include "rijndael.h"
+
+#define CODEC_TYPE_AES128 1
+#define CODEC_TYPE_AES256 2
+
+#ifndef CODEC_TYPE
+#define CODEC_TYPE CODEC_TYPE_AES128
+#endif
+
+#if CODEC_TYPE == CODEC_TYPE_AES256
+#define KEYLENGTH 32
+#define CODEC_SHA_ITER 4001
+#else
+#define KEYLENGTH 16
+#endif
+
+typedef struct _Codec
+{
+  int           m_isEncrypted;
+  int           m_hasReadKey;
+  unsigned char m_readKey[KEYLENGTH];
+  int           m_hasWriteKey;
+  unsigned char m_writeKey[KEYLENGTH];
+  Rijndael*     m_aes;
+
+  Btree*        m_bt; /* Pointer to B-tree used by DB */
+  unsigned char m_page[SQLITE_MAX_PAGE_SIZE+24];
+} Codec;
+
+void CodecInit(Codec* codec);
+void CodecTerm(Codec* codec);
+
+void CodecCopy(Codec* codec, Codec* other);
+
+void CodecGenerateReadKey(Codec* codec, char* userPassword, int passwordLength);
+
+void CodecGenerateWriteKey(Codec* codec, char* userPassword, int passwordLength);
+
+void CodecEncrypt(Codec* codec, int page, unsigned char* data, int len, int useWriteKey);
+
+void CodecDecrypt(Codec* codec, int page, unsigned char* data, int len);
+
+void CodecCopyKey(Codec* codec, int read2write);
+
+void CodecSetIsEncrypted(Codec* codec, int isEncrypted);
+void CodecSetHasReadKey(Codec* codec, int hasReadKey);
+void CodecSetHasWriteKey(Codec* codec, int hasWriteKey);
+void CodecSetBtree(Codec* codec, Btree* bt);
+
+int CodecIsEncrypted(Codec* codec);
+int CodecHasReadKey(Codec* codec);
+int CodecHasWriteKey(Codec* codec);
+Btree* CodecGetBtree(Codec* codec);
+unsigned char* CodecGetPageBuffer(Codec* codec);
+
+void CodecGenerateEncryptionKey(Codec* codec, char* userPassword, int passwordLength, 
+                                unsigned char encryptionKey[KEYLENGTH]);
+
+void CodecPadPassword(Codec* codec, char* password, int pswdlen, unsigned char pswd[32]);
+
+void CodecRC4(Codec* codec, unsigned char* key, int keylen,
+              unsigned char* textin, int textlen,
+         unsigned char* textout);
+
+void CodecGetMD5Binary(Codec* codec, unsigned char* data, int length, unsigned char* digest);
+
+#if CODEC_TYPE == CODEC_TYPE_AES256
+void CodecGetSHABinary(Codec* codec, unsigned char* data, int length, unsigned char* digest);
+#endif
+  
+void CodecGenerateInitialVector(Codec* codec, int seed, unsigned char iv[16]);
+
+void CodecAES(Codec* codec, int page, int encrypt, unsigned char encryptionKey[KEYLENGTH],
+              unsigned char* datain, int datalen, unsigned char* dataout);
+
+#endif
+