Decryptor for .sdw files. More...

#include <sdw_cryptor.h>

Public Types
enum	{ maxPWLen = 16 }
	Maximum length of the password. More...
Public Member Functions
	SDWCryptor (UT_uint32 aDate=0, UT_uint32 aTime=0, const UT_uint8 *aFilePass=NULL)
	Intializes the cryptor.
	~SDWCryptor ()
void	SetDateTime (UT_uint32 aDate, UT_uint32 aTime)
	Sets date and time for verifying the password.
bool	SetPassword (const char *aPassword)
	Sets the password that will be used for decrypting.
void	Decrypt (const char aEncrypted, char aBuffer, UT_uint32 aLen=0) const
	Decrypts a given string.
void	Encrypt (const char aDecrypted, char aBuffer, UT_uint32 aLen=0) const
	Encrypts a string.
Protected Attributes
UT_uint32	mDate
UT_uint32	mTime
char	mPassword [maxPWLen]
UT_uint8	mFilePass [maxPWLen]

Detailed Description

Decryptor for .sdw files.

Member Enumeration Documentation

anonymous enum

Maximum length of the password.

Enumerator:

maxPWLen

Constructor & Destructor Documentation

SDWCryptor::SDWCryptor	(	UT_uint32	aDate = `0`,
		UT_uint32	aTime = `0`,
		const UT_uint8 *	aFilePass = `NULL`
	)

Intializes the cryptor.

The arguments are used to verify that the password is correct. A date and time of zero tells the cryptor to not use these values. If you give aDate and aTime, you really should also give aFilePass - results might not be what you expect otherwise

Parameters:

	aDate	The date given in the file header
	aTime	Time from file header.

References maxPWLen, and mFilePass.

SDWCryptor::~SDWCryptor ( )

Member Function Documentation

void SDWCryptor::Decrypt	(	const char *	aEncrypted,
		char *	aBuffer,
		UT_uint32	aLen = `0`
	)			const

Decrypts a given string.

Parameters:

	aEncrypted	The string to decrypt
	aBuffer	Decrypted string will be put here. Needs to be at least strlen(aEncrypted) bytes large. Can be the same as aEncrypted.
	aLen	Length of the string to be encrypted, if 0 or not given strlen(aEncrypted) is used.

References maxPWLen, and mPassword.

Referenced by Encrypt().

void SDWCryptor::Encrypt	(	const char *	aDecrypted,
		char *	aBuffer,
		UT_uint32	aLen = `0`
	)			const `[inline]`

Encrypts a string.

Works the same as SDWCryptor::Decrypt

References Decrypt().

Referenced by SetPassword().

void SDWCryptor::SetDateTime	(	UT_uint32	aDate,
		UT_uint32	aTime
	)			`[inline]`

Sets date and time for verifying the password.

References mDate, and mTime.

bool SDWCryptor::SetPassword ( const char * aPassword )

Sets the password that will be used for decrypting.

Even if the password is invalid, the current password will be modified.

Parameters:

	aPassword	The password to use
	aFilePass	The password given in the file header to check if the given password is correct or NULL if no check should be performed.