A class that is used to encrypt a PDF file (RC4 40-bit and 128-bit) More...

#include <PdfEncrypt.h>

Inherits PoDoFo::PdfEncryptMD5Base.

Public Member Functions
std::unique_ptr< InputStream >	CreateEncryptionInputStream (InputStream &inputStream, size_t inputLen, PdfEncryptContext &context, const PdfReference &objref) const override
	Create an InputStream that decrypts all data read from it using the current settings of the PdfEncrypt object. More...

std::unique_ptr< OutputStream >	CreateEncryptionOutputStream (OutputStream &outputStream, PdfEncryptContext &context, const PdfReference &objref) const override
	Create an OutputStream that encrypts all data written to it using the current settings of the PdfEncrypt object. More...

size_t	CalculateStreamOffset () const override
	Calculate stream offset.

size_t	CalculateStreamLength (size_t length) const override
	Calculate stream size.

Protected Member Functions
void	Encrypt (const char inStr, size_t inLen, PdfEncryptContext &context, const PdfReference &objref, char outStr, size_t outLen) const override

void	Decrypt (const char inStr, size_t inLen, PdfEncryptContext &context, const PdfReference &objref, char outStr, size_t &outLen) const override

void	GenerateEncryptionKey (const std::string_view &documentId, PdfAuthResult authResult, PODOFO_CRYPT_CTX *ctx, unsigned char uValue[48], unsigned char oValue[48], unsigned char encryptionKey[32]) override

PdfAuthResult	Authenticate (const std::string_view &password, const std::string_view &documentId, PODOFO_CRYPT_CTX *ctx, unsigned char encryptionKey[32]) const override

Detailed Description

A class that is used to encrypt a PDF file (RC4 40-bit and 128-bit)

Client code is working only with PdfEncrypt class and knows nothing about PdfEncryptRC4, it is created through CreatePdfEncrypt factory method

Member Function Documentation

unique_ptr< InputStream > PdfEncryptRC4::CreateEncryptionInputStream	(	InputStream &	inputStream,
		size_t	inputLen,
		PdfEncryptContext &	context,
		const PdfReference &	objref
	)		const

overridevirtual

Create an InputStream that decrypts all data read from it using the current settings of the PdfEncrypt object.

Warning: Currently only RC4 based encryption is supported using output streams!

Parameters

inputStream the created InputStream reads all decrypted data to this input stream.

unique_ptr< OutputStream > PdfEncryptRC4::CreateEncryptionOutputStream	(	OutputStream &	outputStream,
		PdfEncryptContext &	context,
		const PdfReference &	objref
	)		const

overridevirtual

Create an OutputStream that encrypts all data written to it using the current settings of the PdfEncrypt object.

Warning: Currently only RC4 based encryption is supported using output streams!

Parameters

outputStream the created OutputStream writes all encrypted data to this output stream.

The documentation for this class was generated from the following files: