cn.wizzer.app.web.commons.utils

类 RSAUtil

java.lang.Object

cn.wizzer.app.web.commons.utils.RSAUtil

@IocBean
public class RSAUtil
extends Object

Created by wizzer on 2017/4/24.

构造器概要

构造器

构造器和说明
RSAUtil()

方法概要

限定符和类型	方法和说明
static byte	asc_to_bcd(byte asc)
static byte[]	ASCII_To_BCD(byte[] ascii, int asc_len) ASCII码转BCD码
static String	bcd2Str(byte[] bytes) BCD转字符串
static String	decryptByPrivateKey(String data, RSAPrivateKey privateKey) 私钥解密
static String	encryptByPublicKey(String data, RSAPublicKey publicKey) 公钥加密
static HashMap<String,Object>	getKeys() 生成公钥和私钥
static RSAPrivateKey	getPrivateKey(String modulus, String exponent) 使用模和指数生成RSA私钥 /None/NoPadding
static RSAPublicKey	getPublicKey(String modulus, String exponent) 使用模和指数生成RSA公钥
static byte[][]	splitArray(byte[] data, int len) 拆分数组
static String[]	splitString(String string, int len) 拆分字符串

从类继承的方法 java.lang.Object

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

构造器详细资料

RSAUtil

public RSAUtil()

方法详细资料

getKeys

public static HashMap<String,Object> getKeys()
                                      throws NoSuchAlgorithmException

生成公钥和私钥

抛出:

NoSuchAlgorithmException

getPublicKey

public static RSAPublicKey getPublicKey(String modulus,
                                        String exponent)

使用模和指数生成RSA公钥

参数:

modulus - 模

exponent - 指数

返回:

getPrivateKey

public static RSAPrivateKey getPrivateKey(String modulus,
                                          String exponent)

使用模和指数生成RSA私钥 /None/NoPadding

参数:

modulus - 模

exponent - 指数

返回:

encryptByPublicKey

public static String encryptByPublicKey(String data,
                                        RSAPublicKey publicKey)
                                 throws Exception

公钥加密

参数:

data -

publicKey -

返回:

抛出:

Exception

decryptByPrivateKey

public static String decryptByPrivateKey(String data,
                                         RSAPrivateKey privateKey)
                                  throws Exception

私钥解密

参数:

data -

privateKey -

返回:

抛出:

Exception

ASCII_To_BCD

public static byte[] ASCII_To_BCD(byte[] ascii,
                                  int asc_len)

ASCII码转BCD码

asc_to_bcd

public static byte asc_to_bcd(byte asc)

bcd2Str

public static String bcd2Str(byte[] bytes)

BCD转字符串

splitString

public static String[] splitString(String string,
                                   int len)

拆分字符串

splitArray

public static byte[][] splitArray(byte[] data,
                                  int len)

拆分数组