dcrypt.crypto.ciphers.TEA

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Syntax

class TEA : BlockCipher

Remarks

Implementation of the TEA cipher designed by David Wheeler and Roger Needham.

Inherits from

dcrypt.crypto.BlockCipher

Conforms to

None

Publically imports

None

References

Wikipedia TEA page

Members

Fields

ENCRYPT

Syntax

public static const bool ENCRYPT

Remarks

Constant whose value is true. Intended to be passed to the init method of ciphers. (Inherited from Cipher.)

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DECRYPT

Syntax

public static const bool DECRYPT

Remarks

Constant whose value is false. Intended to be passed to the init method of ciphers. (Inherited from Cipher.)

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Properties

name

Syntax

public char[] name()

Remarks

The name of the cipher. (Inherited from Cipher.)

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initialized

Syntax

public bool initialized()

Remarks

Whether or not the cipher has been initialized. (Inherited from Cipher.)

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blockSize

Syntax

public uint blockSize()

Remarks

The block size in bytes of this block cipher. (Inherited from BlockCipher.)

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Methods

init

Syntax

public void init(bool encrypt, CipherParameters params)

Remarks

Initialize a cipher. (Inherited from Cipher.)

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reset

Syntax

public void reset()

Remarks

Reset a cipher. (Inherited from Cipher.)

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update

Syntax

public uint update(void[] input_, void[] output_)

Remarks

Process a block of data from the input array and place it in the output array. Returns the amount of data processed in bytes. (Inherited from Cipher.)

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Example

// dcrypt does NOT rely on Phobos or Tango
import tango.io.Console;
import dcrypt.misc.Util;

import dcrypt.crypto.params.SymmetricKey;
import dcrypt.crypto.ciphers.TEA;

void main() {
    TEA tea = new TEA;
	
    // Create a simple test vector
    ubyte[] testBytes = new ubyte[tea.blockSize];
    testBytes[] = 0x00;
    
    // Initialize the cipher and encrypt the test vector
    tea.init(TEA.ENCRYPT, new SymmetricKey(testBytes));
    tea.update(testBytes, testBytes);

    Cout(Util.ubytesToHex(testBytes));
}