Package org.aoju.bus.core.toolkit

Class HashKit

java.lang.Object

org.aoju.bus.core.toolkit.HashKit

public class HashKit
extends Object

Hash算法大全 推荐使用FNV1算法

Since:

Java 17+

Author:

Kimi Liu

Constructor Summary

Constructors

Constructor	Description
HashKit()

Method Summary

Modifier and Type	Method	Description
static int	additiveHash(String key, int prime)	加法hash
static int	apHash(String text)	AP算法
static int	bernstein(String key)	Bernstein's hash
static int	bkdrHash(String text)	BKDR算法
static int	dekHash(String text)	DEK算法
static int	djbHash(String text)	DJB算法
static int	elfHash(String text)	ELF算法
static int	fnvHash(byte[] data)	改进的32位FNV算法1
static int	fnvHash(String data)	改进的32位FNV算法1
static long	hfHash(String data)	HF Hash算法
static long	hfIpHash(String data)	HFIP Hash算法
static int	intHash(int key)	Thomas Wang的算法,整数hash
static int	javaDefaultHash(String text)	JAVA自己带的算法
static int	jsHash(String text)	JS算法
static long	mixHash(String text)	混合hash算法,输出64位的值
static int	oneByOneHash(String key)	一次一个hash
static int	pjwHash(String text)	PJW算法
static int	rotatingHash(String key, int prime)	旋转hash
static int	rsHash(String text)	RS算法hash
static int	sdbmHash(String text)	SDBM算法
static long	tianlHash(String text)	TianL Hash算法
static int	universal(char[] key, int mask, int[] tab)	Universal Hashing
static int	zobrist(char[] key, int mask, int[][] tab)	Zobrist Hashing

Methods inherited from class java.lang.Object

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

Constructor Details

HashKit

public HashKit()

Method Details

additiveHash

public static int additiveHash(String key,
 int prime)

加法hash

Parameters:

key - 字符串

prime - 一个质数

Returns:

hash结果

rotatingHash

public static int rotatingHash(String key,
 int prime)

旋转hash

Parameters:

key - 输入字符串

prime - 质数

Returns:

hash值

oneByOneHash

public static int oneByOneHash(String key)

一次一个hash

Parameters:

key - 输入字符串

Returns:

输出hash值

bernstein

public static int bernstein(String key)

Bernstein's hash

Parameters:

key - 输入字节数组

Returns:

结果hash

universal

public static int universal(char[] key,
 int mask,
 int[] tab)

Universal Hashing

Parameters:

key - 字节数组

mask - 掩码

tab - tab

Returns:

hash值

zobrist

public static int zobrist(char[] key,
 int mask,
 int[][] tab)

Zobrist Hashing

Parameters:

key - 字节数组

mask - 掩码

tab - tab

Returns:

hash值

fnvHash

public static int fnvHash(byte[] data)

改进的32位FNV算法1

Parameters:

data - 数组

Returns:

hash结果

fnvHash

public static int fnvHash(String data)

改进的32位FNV算法1

Parameters:

data - 字符串

Returns:

hash结果

intHash

public static int intHash(int key)

Thomas Wang的算法,整数hash

Parameters:

key - 整数

Returns:

hash值

rsHash

public static int rsHash(String text)

RS算法hash

Parameters:

text - 字符串

Returns:

hash值

jsHash

public static int jsHash(String text)

JS算法

Parameters:

text - 字符串

Returns:

hash值

pjwHash

public static int pjwHash(String text)

PJW算法

Parameters:

text - 字符串

Returns:

hash值

elfHash

public static int elfHash(String text)

ELF算法

Parameters:

text - 字符串

Returns:

hash值

bkdrHash

public static int bkdrHash(String text)

BKDR算法

Parameters:

text - 字符串

Returns:

hash值

sdbmHash

public static int sdbmHash(String text)

SDBM算法

Parameters:

text - 字符串

Returns:

hash值

djbHash

public static int djbHash(String text)

DJB算法

Parameters:

text - 字符串

Returns:

hash值

dekHash

public static int dekHash(String text)

DEK算法

Parameters:

text - 字符串

Returns:

hash值

apHash

public static int apHash(String text)

AP算法

Parameters:

text - 字符串

Returns:

hash值

tianlHash

public static long tianlHash(String text)

TianL Hash算法

Parameters:

text - 字符串

Returns:

Hash值

javaDefaultHash

public static int javaDefaultHash(String text)

JAVA自己带的算法

Parameters:

text - 字符串

Returns:

hash值

mixHash

public static long mixHash(String text)

混合hash算法,输出64位的值

Parameters:

text - 字符串

Returns:

hash值

hfHash

public static long hfHash(String data)

HF Hash算法

Parameters:

data - 字符串

Returns:

hash结果

hfIpHash

public static long hfIpHash(String data)

HFIP Hash算法

Parameters:

data - 字符串

Returns:

hash结果