org.dromara.hutool.crypto.bc

Class ECKeyUtil

java.lang.Object

org.dromara.hutool.crypto.bc.ECKeyUtil

public class ECKeyUtil
extends Object

椭圆曲线EC(Elliptic Curves)密钥参数相关工具类封装

Since:

5.4.3

Author:

looly

Constructor Summary

Constructors

Constructor and Description
ECKeyUtil()

Method Summary

Modifier and Type	Method and Description
static PrivateKey	decodeECPrivateKey(byte[] d, String curveName) 解码恢复EC私钥,支持Base64和Hex编码,（基于BouncyCastle）
static PrivateKey	decodeECPrivateKey(String d, String curveName) 解码恢复EC私钥,支持Base64和Hex编码,（基于BouncyCastle）
static PublicKey	decodeECPublicKey(byte[] encodeByte, String curveName) 解码恢复EC压缩公钥,支持Base64和Hex编码,（基于BouncyCastle）
static PublicKey	decodeECPublicKey(String encode, String curveName) 解码恢复EC压缩公钥,支持Base64和Hex编码,（基于BouncyCastle） 见：https://www.cnblogs.com/xinzhao/p/8963724.html
static byte[]	encodeECPrivateKey(PrivateKey privateKey) 只获取私钥里的d，32位字节
static byte[]	encodeECPublicKey(PublicKey publicKey) 编码压缩EC公钥（基于BouncyCastle），即Q值 见：https://www.cnblogs.com/xinzhao/p/8963724.html
static byte[]	encodeECPublicKey(PublicKey publicKey, boolean isCompressed) 编码压缩EC公钥（基于BouncyCastle），即Q值 见：https://www.cnblogs.com/xinzhao/p/8963724.html
static PrivateKey	generatePrivateKey(org.bouncycastle.asn1.ASN1Encodable privateKey) 将SM2算法的ASN1Encodable格式私钥 生成为 PrivateKey
static PrivateKey	generateSm2PrivateKey(byte[] privateKeyBytes) 生成SM2私钥，支持包括： D值 PKCS#8 PKCS#1 OpenSSH格式
static PublicKey	generateSm2PublicKey(byte[] publicKeyBytes) 生成SM2公钥，支持包括： Q值 X.509 PKCS#1
static PublicKey	generateSm2PublicKey(byte[] x, byte[] y) 尝试解析转换各种类型公钥为ECPublicKeyParameters，支持包括：
static PublicKey	getECPublicKey(org.bouncycastle.jce.interfaces.ECPrivateKey privateKey, org.bouncycastle.jce.spec.ECParameterSpec spec) 根据私钥获取EC公钥
static org.bouncycastle.crypto.params.ECPublicKeyParameters	getPublicParams(org.bouncycastle.crypto.params.ECPrivateKeyParameters privateKeyParameters) 根据私钥参数获取公钥参数
static org.bouncycastle.math.ec.ECPoint	getQFromD(BigInteger d, org.bouncycastle.jce.spec.ECParameterSpec spec) 根据私钥D值获取公钥的点坐标(Q值)
static org.bouncycastle.crypto.params.AsymmetricKeyParameter	toParams(Key key) 密钥转换为AsymmetricKeyParameter
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toPrivateParams(BigInteger d, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toPrivateParams(byte[] d, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toPrivateParams(PrivateKey privateKey) 私钥转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toPrivateParams(String d, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(BigInteger x, BigInteger y, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(byte[] xBytes, byte[] yBytes, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(byte[] pointEncoded, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(org.bouncycastle.math.ec.ECPoint point, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(PublicKey publicKey) 公钥转换为 ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(String pointEncoded, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toPublicParams(String x, String y, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2PrivateParams(BigInteger d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2PrivateParams(byte[] d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2PrivateParams(String d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2PublicParams(byte[] q) 转换为 ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2PublicParams(byte[] xBytes, byte[] yBytes) 转换为SM2的ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2PublicParams(String q) 转换为 ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2PublicParams(String x, String y) 转换为SM2的ECPublicKeyParameters

Methods inherited from class java.lang.Object

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

Constructor Detail

ECKeyUtil

public ECKeyUtil()

Method Detail

getPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters getPublicParams(org.bouncycastle.crypto.params.ECPrivateKeyParameters privateKeyParameters)

根据私钥参数获取公钥参数

Parameters:

privateKeyParameters - 私钥参数

Returns:

公钥参数

Since:

5.5.9

getECPublicKey

public static PublicKey getECPublicKey(org.bouncycastle.jce.interfaces.ECPrivateKey privateKey,
                                       org.bouncycastle.jce.spec.ECParameterSpec spec)

根据私钥获取EC公钥

Parameters:

privateKey - EC私钥

spec - 密钥规范

Returns:

EC公钥

getQFromD

public static org.bouncycastle.math.ec.ECPoint getQFromD(BigInteger d,
                                                         org.bouncycastle.jce.spec.ECParameterSpec spec)

根据私钥D值获取公钥的点坐标(Q值)

Parameters:

d - 私钥d值

spec - 密钥规范

Returns:

公钥的点坐标

encodeECPrivateKey

public static byte[] encodeECPrivateKey(PrivateKey privateKey)

只获取私钥里的d，32位字节

Parameters:

privateKey - PublicKey，必须为org.bouncycastle.jce.interfaces.ECPrivateKey

Returns:

压缩得到的X

Since:

5.1.6

decodeECPrivateKey

public static PrivateKey decodeECPrivateKey(String d,
                                            String curveName)

解码恢复EC私钥,支持Base64和Hex编码,（基于BouncyCastle）

Parameters:

d - 私钥d值（Base64或Hex格式）

curveName - EC曲线名，例如SM2Constant.SM2_DOMAIN_PARAMS

Returns:

私钥

decodeECPrivateKey

public static PrivateKey decodeECPrivateKey(byte[] d,
                                            String curveName)

解码恢复EC私钥,支持Base64和Hex编码,（基于BouncyCastle）

Parameters:

d - 私钥d值

curveName - EC曲线名，例如SM2Constant.SM2_DOMAIN_PARAMS

Returns:

私钥

Since:

5.8.36

encodeECPublicKey

public static byte[] encodeECPublicKey(PublicKey publicKey)

编码压缩EC公钥（基于BouncyCastle），即Q值
见：https://www.cnblogs.com/xinzhao/p/8963724.html

Parameters:

publicKey - PublicKey，必须为org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey

Returns:

压缩得到的Q

Since:

4.4.4

encodeECPublicKey

public static byte[] encodeECPublicKey(PublicKey publicKey,
                                       boolean isCompressed)

编码压缩EC公钥（基于BouncyCastle），即Q值
见：https://www.cnblogs.com/xinzhao/p/8963724.html

Parameters:

publicKey - PublicKey，必须为org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey

isCompressed - 是否压缩

Returns:

得到的Q

Since:

5.5.9

decodeECPublicKey

public static PublicKey decodeECPublicKey(String encode,
                                          String curveName)

解码恢复EC压缩公钥,支持Base64和Hex编码,（基于BouncyCastle）
见：https://www.cnblogs.com/xinzhao/p/8963724.html

Parameters:

encode - 压缩公钥

curveName - EC曲线名

Returns:

公钥

Since:

4.4.4

decodeECPublicKey

public static PublicKey decodeECPublicKey(byte[] encodeByte,
                                          String curveName)

解码恢复EC压缩公钥,支持Base64和Hex编码,（基于BouncyCastle）

Parameters:

encodeByte - 压缩公钥

curveName - EC曲线名，例如SM2Constant.SM2_DOMAIN_PARAMS

Returns:

公钥

Since:

4.4.4

toParams

public static org.bouncycastle.crypto.params.AsymmetricKeyParameter toParams(Key key)

密钥转换为AsymmetricKeyParameter

Parameters:

key - PrivateKey或者PublicKey

Returns:

ECPrivateKeyParameters或者ECPublicKeyParameters

toSm2PublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2PublicParams(byte[] q)

转换为 ECPublicKeyParameters

Parameters:

q - 公钥Q值

Returns:

ECPublicKeyParameters

toSm2PublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2PublicParams(String q)

转换为 ECPublicKeyParameters

Parameters:

q - 公钥Q值

Returns:

ECPublicKeyParameters

toSm2PublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2PublicParams(String x,
                                                                                     String y)

转换为SM2的ECPublicKeyParameters

Parameters:

x - 公钥X

y - 公钥Y

Returns:

ECPublicKeyParameters

toSm2PublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2PublicParams(byte[] xBytes,
                                                                                     byte[] yBytes)

转换为SM2的ECPublicKeyParameters

Parameters:

xBytes - 公钥X

yBytes - 公钥Y

Returns:

ECPublicKeyParameters

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(String x,
                                                                                  String y,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

x - 公钥X

y - 公钥Y

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters，x或y为null则返回null

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(byte[] xBytes,
                                                                                  byte[] yBytes,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

xBytes - 公钥X

yBytes - 公钥Y

domainParameters - ECDomainParameters曲线参数

Returns:

ECPublicKeyParameters

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(BigInteger x,
                                                                                  BigInteger y,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

x - 公钥X

y - 公钥Y

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(String pointEncoded,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

pointEncoded - 被编码的曲线坐标点

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters

Since:

5.4.3

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(byte[] pointEncoded,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

pointEncoded - 被编码的曲线坐标点

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters

Since:

5.4.3

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(org.bouncycastle.math.ec.ECPoint point,
                                                                                  org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

point - 曲线坐标点

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters

Since:

5.4.3

toPublicParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toPublicParams(PublicKey publicKey)

公钥转换为 ECPublicKeyParameters

Parameters:

publicKey - 公钥，传入null返回null

Returns:

ECPublicKeyParameters或null

toSm2PrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2PrivateParams(String d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值16进制字符串

Returns:

ECPrivateKeyParameters

toSm2PrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2PrivateParams(byte[] d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

Returns:

ECPrivateKeyParameters

toSm2PrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2PrivateParams(BigInteger d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

Returns:

ECPrivateKeyParameters

toPrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toPrivateParams(String d,
                                                                                    org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值16进制字符串

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toPrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toPrivateParams(byte[] d,
                                                                                    org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toPrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toPrivateParams(BigInteger d,
                                                                                    org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toPrivateParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toPrivateParams(PrivateKey privateKey)

私钥转换为 ECPrivateKeyParameters

Parameters:

privateKey - 私钥，传入null返回null

Returns:

ECPrivateKeyParameters或null

generatePrivateKey

public static PrivateKey generatePrivateKey(org.bouncycastle.asn1.ASN1Encodable privateKey)

将SM2算法的ASN1Encodable格式私钥 生成为 PrivateKey

Parameters:

privateKey - ASN1Encodable格式的私钥

Returns:

PrivateKey

generateSm2PrivateKey

public static PrivateKey generateSm2PrivateKey(byte[] privateKeyBytes)

生成SM2私钥，支持包括：

• D值
• PKCS#8
• PKCS#1
• OpenSSH格式

Parameters:

privateKeyBytes - 私钥

Returns:

ECPrivateKeyParameters

generateSm2PublicKey

public static PublicKey generateSm2PublicKey(byte[] publicKeyBytes)

生成SM2公钥，支持包括：

• Q值
• X.509
• PKCS#1

Parameters:

publicKeyBytes - 公钥

Returns:

ECPublicKeyParameters

generateSm2PublicKey

public static PublicKey generateSm2PublicKey(byte[] x,
                                             byte[] y)

尝试解析转换各种类型公钥为ECPublicKeyParameters，支持包括：

Parameters:

x - 坐标X

y - 坐标y

Returns:

ECPublicKeyParameters