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-rw-r--r--pdf/xpdf/Decrypt.h61
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diff --git a/pdf/xpdf/Decrypt.h b/pdf/xpdf/Decrypt.h
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--- a/pdf/xpdf/Decrypt.h
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-//========================================================================
-//
-// Decrypt.h
-//
-// Copyright 1996-2003 Glyph & Cog, LLC
-//
-//========================================================================
-
-#ifndef DECRYPT_H
-#define DECRYPT_H
-
-#include <aconf.h>
-
-#ifdef USE_GCC_PRAGMAS
-#pragma interface
-#endif
-
-#include "gtypes.h"
-#include "GString.h"
-
-//------------------------------------------------------------------------
-// Decrypt
-//------------------------------------------------------------------------
-
-class Decrypt {
-public:
-
- // Initialize the decryptor object.
- Decrypt(Guchar *fileKey, int keyLength, int objNum, int objGen);
-
- // Reset decryption.
- void reset();
-
- // Decrypt one byte.
- Guchar decryptByte(Guchar c);
-
- // Generate a file key. The <fileKey> buffer must have space for at
- // least 16 bytes. Checks <ownerPassword> and then <userPassword>
- // and returns true if either is correct. Sets <ownerPasswordOk> if
- // the owner password was correct. Either or both of the passwords
- // may be NULL, which is treated as an empty string.
- static GBool makeFileKey(int encVersion, int encRevision, int keyLength,
- GString *ownerKey, GString *userKey,
- int permissions, GString *fileID,
- GString *ownerPassword, GString *userPassword,
- Guchar *fileKey, GBool *ownerPasswordOk);
-
-private:
-
- static GBool makeFileKey2(int encVersion, int encRevision, int keyLength,
- GString *ownerKey, GString *userKey,
- int permissions, GString *fileID,
- GString *userPassword, Guchar *fileKey);
-
- int objKeyLength;
- Guchar objKey[21];
- Guchar state[256];
- Guchar x, y;
-};
-
-#endif