com.centit.support.security

类 SM2Util

java.lang.Object

com.centit.support.security.SM2Util

public abstract class SM2Util
extends Object

字段概要

字段

限定符和类型	字段和说明
static String	CRYPTO_NAME_SM2 数字签名参数

构造器概要

构造器

构造器和说明
SM2Util()

方法概要

限定符和类型	方法和说明
static boolean	certVerify(byte[] data, String certStr, String signValueStr) 证书验签
static byte[]	decryptUserPrivateKey(byte[] cipherDataByte, String privateKey) 测试通过
static byte[]	encryptUsePublicKey(byte[] data, String publicKey) 测试通过
static org.apache.commons.lang3.tuple.Pair<String,String>	generateKey(boolean compressed)
static org.apache.commons.lang3.tuple.Pair<String,String>	generateSm2Keys(boolean compressed)
static byte[]	obtainAniBytes(byte[] ansiBytes)
static String	obtainPublicKey(String certStr) 从证书中获取公钥，证书为base64编码字符串
static byte[]	sign(byte[] data, String priKey) 签名
static byte[]	toAniBytes(byte[] ansiBytes)
static boolean	verify(byte[] data, String pubKey, byte[] signatureValue) 验签

从类继承的方法 java.lang.Object

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

字段详细资料

CRYPTO_NAME_SM2

public static final String CRYPTO_NAME_SM2

数字签名参数

另请参阅:

常量字段值

构造器详细资料

SM2Util

public SM2Util()

方法详细资料

obtainPublicKey

public static String obtainPublicKey(String certStr)

从证书中获取公钥，证书为base64编码字符串

参数:

certStr - 证书为base64编码字符串

返回:

公钥 04开头

encryptUsePublicKey

public static byte[] encryptUsePublicKey(byte[] data,
                                         String publicKey)

测试通过

参数:

publicKey - 公钥

data - 明文数据

返回:

秘文

decryptUserPrivateKey

public static byte[] decryptUserPrivateKey(byte[] cipherDataByte,
                                           String privateKey)

测试通过

参数:

privateKey - 私钥

cipherDataByte - 秘文数据

返回:

明文

generateKey

public static org.apache.commons.lang3.tuple.Pair<String,String> generateKey(boolean compressed)

generateSm2Keys

public static org.apache.commons.lang3.tuple.Pair<String,String> generateSm2Keys(boolean compressed)

sign

public static byte[] sign(byte[] data,
                          String priKey)

签名

参数:

priKey - 私钥

data - 待签名数据

返回:

签名

verify

public static boolean verify(byte[] data,
                             String pubKey,
                             byte[] signatureValue)

验签

参数:

pubKey - 公钥

data - 签名的数据

signatureValue - 签名

返回:

验签结果

certVerify

public static boolean certVerify(byte[] data,
                                 String certStr,
                                 String signValueStr)

证书验签

参数:

certStr - 证书串

data - 签名原文

signValueStr - 签名产生签名值 此处的签名值实际上就是 R和S的sequence

返回:

证书验证结果

toAniBytes

public static byte[] toAniBytes(byte[] ansiBytes)
                         throws IOException

抛出:

IOException

obtainAniBytes

public static byte[] obtainAniBytes(byte[] ansiBytes)
                             throws IOException

抛出:

IOException