cn.hutool.crypto

Class BCUtil

java.lang.Object

cn.hutool.crypto.BCUtil

public class BCUtil
extends Object

Bouncy Castle相关工具类封装

Since:

4.5.0

Author:

looly

Constructor Summary

Constructors

Constructor and Description
BCUtil()

Method Summary

Modifier and Type	Method and Description
static PublicKey	decodeECPoint(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	decodeECPoint(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	readPemPrivateKey(InputStream pemStream) 读取PEM格式的私钥
static PublicKey	readPemPublicKey(InputStream pemStream) 读取PEM格式的公钥
static org.bouncycastle.crypto.params.ECDomainParameters	toDomainParams(org.bouncycastle.jce.spec.ECParameterSpec parameterSpec) 构建ECDomainParameters对象
static org.bouncycastle.crypto.params.ECDomainParameters	toDomainParams(String curveName) 构建ECDomainParameters对象
static org.bouncycastle.crypto.params.ECDomainParameters	toDomainParams(org.bouncycastle.asn1.x9.X9ECParameters x9ECParameters) 构建ECDomainParameters对象
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toParams(BigInteger x, BigInteger y, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toParams(BigInteger d, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toParams(byte[] xBytes, byte[] yBytes, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toParams(byte[] d, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.AsymmetricKeyParameter	toParams(Key key) 密钥转换为AsymmetricKeyParameter
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toParams(PrivateKey privateKey) 私钥转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toParams(PublicKey publicKey) 公钥转换为 ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toParams(String dHex, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toParams(String xHex, String yHex, org.bouncycastle.crypto.params.ECDomainParameters domainParameters) 转换为ECPublicKeyParameters
static byte[]	toPkcs1(PrivateKey privateKey) Java中的PKCS#8格式私钥转换为OpenSSL支持的PKCS#1格式
static byte[]	toPkcs1(PublicKey publicKey) Java中的X.509格式公钥转换为OpenSSL支持的PKCS#1格式
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2Params(BigInteger d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2Params(byte[] d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2Params(byte[] xBytes, byte[] yBytes) 转换为SM2的ECPublicKeyParameters
static org.bouncycastle.crypto.params.ECPrivateKeyParameters	toSm2Params(String d) 转换为 ECPrivateKeyParameters
static org.bouncycastle.crypto.params.ECPublicKeyParameters	toSm2Params(String xHex, String yHex) 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

BCUtil

public BCUtil()

Method Detail

encodeECPrivateKey

public static byte[] encodeECPrivateKey(PrivateKey privateKey)

只获取私钥里的d，32字节

Parameters:

privateKey - PublicKey，必须为org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey

Returns:

压缩得到的X

Since:

5.1.6

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

decodeECPoint

public static PublicKey decodeECPoint(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

decodeECPoint

public static PublicKey decodeECPoint(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SmUtil.SM2_DOMAIN_PARAMS

Returns:

公钥

Since:

4.4.4

toDomainParams

public static org.bouncycastle.crypto.params.ECDomainParameters toDomainParams(org.bouncycastle.jce.spec.ECParameterSpec parameterSpec)

构建ECDomainParameters对象

Parameters:

parameterSpec - ECParameterSpec

Returns:

ECDomainParameters

Since:

5.2.0

toDomainParams

public static org.bouncycastle.crypto.params.ECDomainParameters toDomainParams(String curveName)

构建ECDomainParameters对象

Parameters:

curveName - Curve名称

Returns:

ECDomainParameters

Since:

5.2.0

toDomainParams

public static org.bouncycastle.crypto.params.ECDomainParameters toDomainParams(org.bouncycastle.asn1.x9.X9ECParameters x9ECParameters)

构建ECDomainParameters对象

Parameters:

x9ECParameters - X9ECParameters

Returns:

ECDomainParameters

Since:

5.2.0

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

Since:

5.2.0

toSm2Params

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2Params(String d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

Returns:

ECPrivateKeyParameters

toParams

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toParams(String dHex,
                                                                             org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为 ECPrivateKeyParameters

Parameters:

dHex - 私钥d值16进制字符串

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toSm2Params

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2Params(byte[] d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

Returns:

ECPrivateKeyParameters

toParams

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

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toSm2Params

public static org.bouncycastle.crypto.params.ECPrivateKeyParameters toSm2Params(BigInteger d)

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

Returns:

ECPrivateKeyParameters

toParams

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

转换为 ECPrivateKeyParameters

Parameters:

d - 私钥d值

domainParameters - ECDomainParameters

Returns:

ECPrivateKeyParameters

toParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toParams(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

toSm2Params

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2Params(String xHex,
                                                                               String yHex)

转换为SM2的ECPublicKeyParameters

Parameters:

xHex - 公钥X

yHex - 公钥Y

Returns:

ECPublicKeyParameters

toParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toParams(String xHex,
                                                                            String yHex,
                                                                            org.bouncycastle.crypto.params.ECDomainParameters domainParameters)

转换为ECPublicKeyParameters

Parameters:

xHex - 公钥X

yHex - 公钥Y

domainParameters - ECDomainParameters

Returns:

ECPublicKeyParameters

toSm2Params

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toSm2Params(byte[] xBytes,
                                                                               byte[] yBytes)

转换为SM2的ECPublicKeyParameters

Parameters:

xBytes - 公钥X

yBytes - 公钥Y

Returns:

ECPublicKeyParameters

toParams

public static org.bouncycastle.crypto.params.ECPublicKeyParameters toParams(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

Returns:

ECPublicKeyParameters

toParams

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

公钥转换为 ECPublicKeyParameters

Parameters:

publicKey - 公钥，传入null返回null

Returns:

ECPublicKeyParameters或null

toParams

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

私钥转换为 ECPrivateKeyParameters

Parameters:

privateKey - 私钥，传入null返回null

Returns:

ECPrivateKeyParameters或null

readPemPrivateKey

public static PrivateKey readPemPrivateKey(InputStream pemStream)

读取PEM格式的私钥

Parameters:

pemStream - pem流

Returns:

PrivateKey

Since:

5.2.5

See Also:

PemUtil.readPemPrivateKey(InputStream)

readPemPublicKey

public static PublicKey readPemPublicKey(InputStream pemStream)

读取PEM格式的公钥

Parameters:

pemStream - pem流

Returns:

PublicKey

Since:

5.2.5

See Also:

PemUtil.readPemPublicKey(InputStream)

toPkcs1

public static byte[] toPkcs1(PrivateKey privateKey)

Java中的PKCS#8格式私钥转换为OpenSSL支持的PKCS#1格式

Parameters:

privateKey - PKCS#8格式私钥

Returns:

PKCS#1格式私钥

Since:

5.5.9

toPkcs1

public static byte[] toPkcs1(PublicKey publicKey)

Java中的X.509格式公钥转换为OpenSSL支持的PKCS#1格式

Parameters:

publicKey - X.509格式公钥

Returns:

PKCS#1格式公钥

Since:

5.5.9