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Decrypt Class Reference

#include </home/clem/local/src/opie/noncore/unsupported/qpdf/xpdf/Decrypt.h>

List of all members.

Public Member Functions

 Decrypt (Guchar *fileKey, int keyLength, int objNum, int objGen)
void reset ()
Guchar decryptByte (Guchar c)

Static Public Member Functions

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)

Static Private Member Functions

static GBool makeFileKey2 (int encVersion, int encRevision, int keyLength, GString *ownerKey, GString *userKey, int permissions, GString *fileID, GString *userPassword, Guchar *fileKey)

Private Attributes

int objKeyLength
Guchar objKey [21]
Guchar state [256]
Guchar x
Guchar y

Constructor & Destructor Documentation

Decrypt::Decrypt (  Guchar *  fileKey,
int  keyLength,
int  objNum,
int  objGen
) 
 

Definition at line 32 of file Decrypt.cc.

References i, md5(), objKey, objKeyLength, rc4InitKey(), state, x, and y.

Member Function Documentation

Guchar Decrypt::decryptByte (  Guchar  c  ) 
 

Definition at line 59 of file Decrypt.cc.

References rc4DecryptByte(), state, x, and y.

Referenced by MemStream::doDecryption(), and Parser::getObj().

GBool Decrypt::makeFileKey (  int  encVersion,
int  encRevision,
int  keyLength,
GString *  ownerKey,
GString *  userKey,
int  permissions,
GString *  fileID,
GString *  ownerPassword,
GString *  userPassword,
Guchar *  fileKey,
GBool *  ownerPasswordOk
)  [static]
 

Definition at line 63 of file Decrypt.cc.

References GString::getChar(), GString::getCString(), GString::getLength(), gFalse, gTrue, i, len, makeFileKey2(), md5(), passwordPad, rc4DecryptByte(), and rc4InitKey().

Referenced by XRef::checkEncrypted().

GBool Decrypt::makeFileKey2 (  int  encVersion,
int  encRevision,
int  keyLength,
GString *  ownerKey,
GString *  userKey,
int  permissions,
GString *  fileID,
GString *  userPassword,
Guchar *  fileKey
)  [static, private]
 

Definition at line 112 of file Decrypt.cc.

References buf, GString::getChar(), GString::getCString(), GString::getLength(), gFalse, gfree(), gmalloc(), i, len, md5(), passwordPad, rc4DecryptByte(), and rc4InitKey().

Referenced by makeFileKey().

void Decrypt::reset (   ) 
 

Definition at line 54 of file Decrypt.cc.

References objKey, objKeyLength, rc4InitKey(), state, x, and y.

Referenced by MemStream::reset(), and FileStream::reset().

Member Data Documentation

Guchar Decrypt::objKey[21] [private]
 

Definition at line 54 of file Decrypt.h.

Referenced by Decrypt(), and reset().

int Decrypt::objKeyLength [private]
 

Definition at line 53 of file Decrypt.h.

Referenced by Decrypt(), and reset().

Guchar Decrypt::state[256] [private]
 

Definition at line 55 of file Decrypt.h.

Referenced by Decrypt(), decryptByte(), and reset().

Guchar Decrypt::x [private]
 

Definition at line 56 of file Decrypt.h.

Referenced by Decrypt(), decryptByte(), and reset().

Guchar Decrypt::y [private]
 

Definition at line 56 of file Decrypt.h.

Referenced by Decrypt(), decryptByte(), and reset().

The documentation for this class was generated from the following files:
Generated on Sat Nov 5 17:30:59 2005 for OPIE by  doxygen 1.4.2