net.renfei.sdk.utils

Class RSAUtils

java.lang.Object

net.renfei.sdk.utils.RSAUtils

public class RSAUtils
extends Object

RSA非对称加密

Author:

RenFei

Field Summary

Fields

Modifier and Type	Field and Description
static String	ALGORITHM

Constructor Summary

Constructors

Constructor and Description
RSAUtils()

Method Summary

Modifier and Type	Method and Description
static String	decrypt(String str, String privateKey) RSA私钥解密
static String	encrypt(String str, String publicKey) RSA公钥加密
static Map<Integer,String>	genKeyPair(int keySize) 随机生成密钥对
static PrivateKey	getPrivateKey(String base64PrivateKey)
static PublicKey	getPublicKey(String base64PublicKey)

Methods inherited from class java.lang.Object

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

Field Detail

ALGORITHM

public static final String ALGORITHM

See Also:

Constant Field Values

Constructor Detail

RSAUtils

public RSAUtils()

Method Detail

genKeyPair

public static Map<Integer,String> genKeyPair(int keySize)

随机生成密钥对

Throws:

NoSuchAlgorithmException

encrypt

public static String encrypt(String str,
                             String publicKey)
                      throws Exception

RSA公钥加密

Parameters:

str - 加密字符串

publicKey - 公钥

Returns:

密文

Throws:

Exception - 加密过程中的异常信息

decrypt

public static String decrypt(String str,
                             String privateKey)
                      throws Exception

RSA私钥解密

Parameters:

str - 加密字符串

privateKey - 私钥

Returns:

铭文

Throws:

Exception - 解密过程中的异常信息

getPublicKey

public static PublicKey getPublicKey(String base64PublicKey)

getPrivateKey

public static PrivateKey getPrivateKey(String base64PrivateKey)