Class TSynaBlockCipher

Unit

synacrypt

Declaration

type TSynaBlockCipher = class(TObject)

Description

Implementation of common routines block ciphers (dafault size is 64-bits)

Do not use this class directly, use descendants only!

Hierarchy

• TObject
• TSynaBlockCipher

Overview

Methods

	procedure SetIV(const Value: AnsiString); virtual;
	function GetIV: AnsiString; virtual;
	procedure Reset; virtual;
	function EncryptECB(const InData: AnsiString): AnsiString; virtual;
	function DecryptECB(const InData: AnsiString): AnsiString; virtual;
	function EncryptCBC(const Indata: AnsiString): AnsiString; virtual;
	function DecryptCBC(const Indata: AnsiString): AnsiString; virtual;
	function EncryptCFB8bit(const Indata: AnsiString): AnsiString; virtual;
	function DecryptCFB8bit(const Indata: AnsiString): AnsiString; virtual;
	function EncryptCFBblock(const Indata: AnsiString): AnsiString; virtual;
	function DecryptCFBblock(const Indata: AnsiString): AnsiString; virtual;
	function EncryptOFB(const Indata: AnsiString): AnsiString; virtual;
	function DecryptOFB(const Indata: AnsiString): AnsiString; virtual;
	function EncryptCTR(const Indata: AnsiString): AnsiString; virtual;
	function DecryptCTR(const Indata: AnsiString): AnsiString; virtual;
	constructor Create(Key: AnsiString);

Description

Methods

procedure SetIV(const Value: AnsiString); virtual;

Sets the IV to Value and performs a reset

function GetIV: AnsiString; virtual;

Returns the current chaining information, not the actual IV

procedure Reset; virtual;

Reset any stored chaining information

function EncryptECB(const InData: AnsiString): AnsiString; virtual;

Encrypt a 64-bit block of data using the ECB method of encryption

function DecryptECB(const InData: AnsiString): AnsiString; virtual;

Decrypt a 64-bit block of data using the ECB method of decryption

function EncryptCBC(const Indata: AnsiString): AnsiString; virtual;

Encrypt data using the CBC method of encryption

function DecryptCBC(const Indata: AnsiString): AnsiString; virtual;

Decrypt data using the CBC method of decryption

function EncryptCFB8bit(const Indata: AnsiString): AnsiString; virtual;

Encrypt data using the CFB (8 bit) method of encryption

function DecryptCFB8bit(const Indata: AnsiString): AnsiString; virtual;

Decrypt data using the CFB (8 bit) method of decryption

function EncryptCFBblock(const Indata: AnsiString): AnsiString; virtual;

Encrypt data using the CFB (block) method of encryption

function DecryptCFBblock(const Indata: AnsiString): AnsiString; virtual;

Decrypt data using the CFB (block) method of decryption

function EncryptOFB(const Indata: AnsiString): AnsiString; virtual;

Encrypt data using the OFB method of encryption

function DecryptOFB(const Indata: AnsiString): AnsiString; virtual;

Decrypt data using the OFB method of decryption

function EncryptCTR(const Indata: AnsiString): AnsiString; virtual;

Encrypt data using the CTR method of encryption

function DecryptCTR(const Indata: AnsiString): AnsiString; virtual;

Decrypt data using the CTR method of decryption

constructor Create(Key: AnsiString);

Create a encryptor/decryptor instance and initialize it by the Key.