net.lamgc.utils.encrypt

类 RSASign

java.lang.Object

net.lamgc.utils.encrypt.RSASign

public final class RSASign
extends Object

嵌套类概要

嵌套类

限定符和类型	类和说明
static class	RSASign.SignAlgorithm 限定了对于RSA合法算法的算法集

方法概要

限定符和类型	方法和说明
static boolean	checkSign(byte[] content, byte[] sign, byte[] publicKey, RSASign.SignAlgorithm algorithm) RSA验签检查
static boolean	checkSign(byte[] content, byte[] sign, RSAPublicKey publicKey, RSASign.SignAlgorithm algorithm) RSA签名验证
static byte[]	sign(byte[] content, byte[] privateKey, RSASign.SignAlgorithm algorithm) RSA签名
static byte[]	sign(byte[] content, RSAPrivateKey privateKey, RSASign.SignAlgorithm algorithm) RSA签名

从类继承的方法 java.lang.Object

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

方法详细资料

sign

public static byte[] sign(byte[] content,
                          byte[] privateKey,
                          RSASign.SignAlgorithm algorithm)
                   throws SignatureException,
                          InvalidKeyException,
                          InvalidKeySpecException

RSA签名

参数:

content - 待签名数据

privateKey - 私钥

algorithm - 签名算法

返回:

签名值

抛出:

SignatureException - 签名出错时抛出

InvalidKeyException - 无效密钥,当密钥错误或无效时抛出

InvalidKeySpecException - 密钥规范无效

sign

public static byte[] sign(byte[] content,
                          RSAPrivateKey privateKey,
                          RSASign.SignAlgorithm algorithm)
                   throws InvalidKeySpecException,
                          SignatureException,
                          InvalidKeyException

RSA签名

参数:

content - 待签名数据

privateKey - RSA私钥对象

algorithm - 签名算法

返回:

签名值

抛出:

SignatureException - 签名出错时抛出

InvalidKeyException - 无效密钥,当密钥错误或无效时抛出

InvalidKeySpecException - 密钥规范无效

checkSign

public static boolean checkSign(byte[] content,
                                byte[] sign,
                                byte[] publicKey,
                                RSASign.SignAlgorithm algorithm)
                         throws InvalidKeySpecException,
                                InvalidKeyException,
                                SignatureException

RSA验签检查

参数:

content - 待验签数据

sign - 签名值

publicKey - RSA公钥

algorithm - 签名算法

返回:

布尔值

抛出:

SignatureException - 签名出错时抛出

InvalidKeyException - 无效密钥,当密钥错误或无效时抛出

InvalidKeySpecException - 密钥规范无效

checkSign

public static boolean checkSign(byte[] content,
                                byte[] sign,
                                RSAPublicKey publicKey,
                                RSASign.SignAlgorithm algorithm)
                         throws InvalidKeySpecException,
                                InvalidKeyException,
                                SignatureException

RSA签名验证

参数:

content - 待验证内容

sign - 签名值

publicKey - RSA公钥对象

algorithm - 签名算法

返回:

签名是否验证成功

抛出:

InvalidKeySpecException - 密钥规范无效异常

InvalidKeyException - 密钥无效异常

SignatureException - 签名异常