com.xunlei.channel.common.utils.encrypt

Class RSASignature

java.lang.Object

com.xunlei.channel.common.utils.encrypt.RSASignature

public class RSASignature
extends Object

RSA加密工具类

生成RSA相关密钥,在安装有openssl的linux下执行以下命令,私钥己方保存,公钥对外公开,签名时使用私钥加密,公钥解密

1.生成RSA私钥 openssl genrsa -out rsaprivatekey.pem 1024

2.生成对应RSA公钥 openssl rsa -in rsaprivatekey.pem -pubout -out rsapublickey.pem

3.将RSA私钥转换成PKCS8格式 openssl pkcs8 -topk8 -inform PEM -in rsaprivatekey.pem -outform PEM -nocrypt -out rsaprivatepkcs8.pem

Author:

huangchunhui 2014年6月4日 上午10:36:09

Field Summary

Fields

Modifier and Type	Field and Description
static String	ENCODING
static String	KEY_ALGORITHM
static String	SIGNATURE_ALGORITHM
static String	X509

Constructor Summary

Constructors

Constructor and Description
RSASignature()

Method Summary

Modifier and Type	Method and Description
static String	getKey(String content)
static PrivateKey	getPrivateKey(String key) 获取私钥
static PublicKey	getPublicKey(String key) 获取公钥
static String	readSourceKey(String path) 从文件中读取密钥字符串
static String	signByPrivateKey(String content, String privateKey) RSA私钥签名
static boolean	verifySignByPublicKey(String content, String sign, String publicKey) RSA校验签名
static boolean	verifySignByPublicKey(String content, String sign, String publicKey, String encoding) RSA校验签名

Methods inherited from class java.lang.Object

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

Field Detail

KEY_ALGORITHM

public static final String KEY_ALGORITHM

See Also:

Constant Field Values

SIGNATURE_ALGORITHM

public static final String SIGNATURE_ALGORITHM

See Also:

Constant Field Values

ENCODING

public static final String ENCODING

See Also:

Constant Field Values

X509

public static final String X509

See Also:

Constant Field Values

Constructor Detail

RSASignature

public RSASignature()

Method Detail

signByPrivateKey

public static String signByPrivateKey(String content,
                                      String privateKey)

RSA私钥签名

Parameters:

content - 待签名数据

privateKey - 私钥

Returns:

签名值

verifySignByPublicKey

public static boolean verifySignByPublicKey(String content,
                                            String sign,
                                            String publicKey)

RSA校验签名

Parameters:

content - 待签名数据原始串

sign - 签名值

publicKey - 公钥

Returns:

true通过 false失败

verifySignByPublicKey

public static boolean verifySignByPublicKey(String content,
                                            String sign,
                                            String publicKey,
                                            String encoding)

RSA校验签名

Parameters:

content - 待签名数据原始串

sign - 签名值

publicKey - 公钥

Returns:

true通过 false失败

getPrivateKey

public static PrivateKey getPrivateKey(String key)
                                throws Exception

获取私钥

Parameters:

key -

Returns:

返回私钥

Throws:

Exception

getPublicKey

public static PublicKey getPublicKey(String key)
                              throws Exception

获取公钥

Parameters:

key -

Returns:

返回公钥

Throws:

Exception

getKey

public static String getKey(String content)
                     throws Exception

Throws:

Exception

readSourceKey

public static String readSourceKey(String path)

从文件中读取密钥字符串

unSafe

Parameters:

path - 密钥绝对路径

Returns:

Throws:

Exception