com.yubico.base

Class CRC13239

java.lang.Object

com.yubico.base.CRC13239

public class CRC13239
extends Object

Utility methods for calculating and verifying the CRC13239 checksum used for YubiKeys.

Field Summary

Fields

Modifier and Type	Field and Description
static short	CRC_OK_RESIDUAL When verifying a checksum the CRC_OK_RESIDUAL should be the remainder

Constructor Summary

Constructors

Modifier	Constructor and Description
private	CRC13239()

Method Summary

Methods

Modifier and Type	Method and Description
static short	getCRC(byte[] buf, int len) Method for calculating a CRC13239 checksum over a byte buffer.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

CRC_OK_RESIDUAL

public static final short CRC_OK_RESIDUAL

When verifying a checksum the CRC_OK_RESIDUAL should be the remainder

See Also:

Constant Field Values

Constructor Detail

CRC13239

private CRC13239()

Method Detail

getCRC

public static short getCRC(byte[] buf,
           int len)

Method for calculating a CRC13239 checksum over a byte buffer.

Parameters:

buf - byte buffer to be checksummed.

len - how much of the buffer should be checksummed

Returns:

CRC13239 checksum