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19 lines
713 B
C
19 lines
713 B
C
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#ifndef __CRYPTO_H__
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#define __CRYPTO_H__
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#define BUG1(a,b) { perror("a"); }
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#define BUG(a) { perror("a"); }
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#define PREAMBLE_SIZE 8 // 4 byte signature + 4 byte subfile type
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#define KEY_BYTES 32 // 32 byts = 256 bits of key
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#define PREAMBLE 0x01020304 // first 4 bytes of the file
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#define FILEKEY_FORMAT 1 // next 4 bytes determine version/format
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#define MASTERKEY_FORMAT 2 // format with master key
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#define MASTER_KEY_OFFSET (PREAMBLE_SIZE+AES_MAX_IV_SIZE)
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BOOL EncryptAndWriteFile(HWND hwnd, HANDLE hFile, BYTE *data, DWORD size, DWORD *written);
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BOOL ReadAndDecryptFile(HWND hwnd, HANDLE hFile, DWORD size, void **lpdata, DWORD *cbdata);
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BOOL GetFileKey( HWND hwnd );
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void ResetEncryption();
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#endif
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