ThreefishEngine Class

Implementation of the Threefish tweakable large block cipher in 256, 512 and 1024 bit block sizes.

Definition

Namespace: Org.BouncyCastle.Crypto.Engines
Assembly: BouncyCastle.Cryptography (in BouncyCastle.Cryptography.dll) Version: 2.3.0-beta.187+d6da5648ae

C#View Source Request Example

public class ThreefishEngine : IBlockCipher

VBView Source Request Example

Public Class ThreefishEngine
	Implements IBlockCipher

C++View Source Request Example

public ref class ThreefishEngine : IBlockCipher

JavaScriptView Source Request Example

Org.BouncyCastle.Crypto.Engines.ThreefishEngine = function();

Type.createClass(
	'Org.BouncyCastle.Crypto.Engines.ThreefishEngine',
	null,
	Org.BouncyCastle.Crypto.IBlockCipher);

Inheritance: Object ThreefishEngine

Implements: IBlockCipher

Remarks

This is the 1.3 version of Threefish defined in the Skein hash function submission to the NIST SHA-3 competition in October 2010.

Threefish was designed by Niels Ferguson - Stefan Lucks - Bruce Schneier - Doug Whiting - Mihir Bellare - Tadayoshi Kohno - Jon Callas - Jesse Walker.

This implementation inlines all round functions, unrolls 8 rounds, and uses 1.2k of static tables to speed up key schedule injection.
2 x block size state is retained by each cipher instance.

Constructors

ThreefishEngine

Constructs a new Threefish cipher, with a specified block size.

Properties

AlgorithmName

Methods

Equals	Determines whether the specified object is equal to the current object. (Inherited from Object)
Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object)
GetBlockSize
GetHashCode	Serves as the default hash function. (Inherited from Object)
GetType	Gets the Type of the current instance. (Inherited from Object)
Init	Initialise the engine.
MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object)
ProcessBlock(ReadOnlySpanByte, SpanByte)
ProcessBlock(Byte, Int32, Byte, Int32)
ToString	Returns a string that represents the current object. (Inherited from Object)

Fields

BLOCKSIZE_1024	1024 bit block size - Threefish-1024
BLOCKSIZE_256	256 bit block size - Threefish-256
BLOCKSIZE_512	512 bit block size - Threefish-512