zeus::TRSACrypter Class Reference

#include <RSACrypter.h>

Inheritance diagram for zeus::TRSACrypter:

List of all members.

Public Member Functions
	TRSACrypter ()
Retval	decode (const TypePrivateRSAKey &rKey, const IByteArray &rInput, IByteArray &rOutput)
Retval	encode (const TypePublicRSAKey &rKey, const IByteArray &rInput, IByteArray &rOutput)
Retval	sign (const TypePrivateRSAKey &rKey, const IByteArray &rInput, IByteArray &rOutput)
Retval	verify (const TypePublicRSAKey &rKey, const IByteArray &rInput, IByteArray &rOutput)
Static Public Member Functions
static void	generateComponents (const Int1024 &ri1024P, const Int1024 &ri1024Q, const Int1024 &ri1024E, TypePublicRSAKey &rPublicKey, TypePrivateRSAKey &rPrivateKey)
Protected Types
enum	EPaddingMethod {   etNone = 0, etPKCS7 = 1, etZeros = 2, etANSIX923 = 3,   etISO10126 = 4 }
Protected Member Functions
Int1024	encode_CRT (const TypePrivateRSAKey &rKey, const Int1024 &ri1024Base) const

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Detailed Description

The class implements the encryption and decryption using the RSA algorithm. The RSA uses a public and private key for encryption.

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Member Enumeration Documentation

enum zeus::TRSACrypter::EPaddingMethod [protected]

Padding methods

Enumerator:

etNone	no padding
etPKCS7	The PKCS #7 padding string consists of a sequence of bytes, each of which is equal to the total number of padding bytes added.
etZeros	The padding string consists of bytes set to zero
etANSIX923	The ANSIX923 padding string consists of a sequence of bytes filled with zeros before the length.
etISO10126	The ISO10126 padding string consists of random data before the length.

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Constructor & Destructor Documentation

TRSACrypter::TRSACrypter

(

)

Creates a RSA crypter

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Member Function Documentation

Retval TRSACrypter::decode	(	const TypePrivateRSAKey &	rKey,
		const IByteArray &	rInput,
		IByteArray &	rOutput
	)

decodes the data using the private key

Retval TRSACrypter::encode	(	const TypePublicRSAKey &	rKey,
		const IByteArray &	rInput,
		IByteArray &	rOutput
	)

encodes data with the public key

Int1024 TRSACrypter::encode_CRT	(	const TypePrivateRSAKey &	rKey,
		const Int1024 &	ri1024Base
	)		const [protected]

encodes the data using the private key. The Chinese Remainder Theorem (CRT) is used to calculate the clear text (or signing the message)

Parameters:

rKey	: private key
rBase	: base value

Returns:

decoded value

void TRSACrypter::generateComponents	(	const Int1024 &	ri1024_P,
		const Int1024 &	ri1024_Q,
		const Int1024 &	ri1024_E,
		TypePublicRSAKey &	rPublicKey,
		TypePrivateRSAKey &	rPrivateKey
	)		[static]

Generates the keys

Retval TRSACrypter::sign	(	const TypePrivateRSAKey &	rKey,
		const IByteArray &	rInput,
		IByteArray &	rOutput
	)

signing the data using the private key

Retval TRSACrypter::verify	(	const TypePublicRSAKey &	rKey,
		const IByteArray &	rInput,
		IByteArray &	rOutput
	)

verifies the data using the public key

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

• RSACrypter.h
• RSACrypter.cpp