cn.hutool.core.io.checksum

Class CRC8

java.lang.Object

cn.hutool.core.io.checksum.CRC8

All Implemented Interfaces:

Serializable, Checksum

public class CRC8
extends Object
implements Checksum, Serializable

CRC8 循环冗余校验码（Cyclic Redundancy Check）实现
代码来自：https://github.com/BBSc0der

Since:

4.4.1

Author:

Bolek,Looly

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
CRC8(int polynomial, short init) 构造

Method Summary

Modifier and Type	Method and Description
long	getValue()
void	reset()
void	update(byte[] buffer) Updates the current checksum with the specified array of bytes.
void	update(byte[] buffer, int offset, int len)
void	update(int b)

Methods inherited from class java.lang.Object

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

Constructor Detail

CRC8

public CRC8(int polynomial,
            short init)

构造

Parameters:

polynomial - Polynomial, typically one of the POLYNOMIAL_* constants.

init - Initial value, typically either 0xff or zero.

Method Detail

update

public void update(byte[] buffer,
                   int offset,
                   int len)

Specified by:

update in interface Checksum

update

public void update(byte[] buffer)

Updates the current checksum with the specified array of bytes. Equivalent to calling update(buffer, 0, buffer.length).

Parameters:

buffer - the byte array to update the checksum with

update

public void update(int b)

Specified by:

update in interface Checksum

getValue

public long getValue()

Specified by:

getValue in interface Checksum

reset

public void reset()

Specified by:

reset in interface Checksum