Java环境下用SM2或者RSA格式生成P10_在硬件中去生成p10文件的命令-程序员宅基地
背景：
需求，生成P10时用的私钥不能暴露出来，为了安全起见，将需要用户自己用私钥进行签名后，将私钥签名当参数传入生成P10的接口中。
1.生成P10的工具类
①该方法是需要使用者传入用户公钥，签名算法，私钥签名，才能生成P10
/**
* 生成 P10
* @param pubKey 用户公钥
* @param signAlg 签名算法
* @param signer 私钥签名 对象
* @return p10
*/
public static String makeCertificate(String pubKey, String signAlg,ContentSigner signer) {
try {
byte[] publicKey = Base64.decodeBase64(pubKey);
// byte[] privateKey = Base64.decodeBase64(signedPriKey);
PublicKey pubkey = null;
// PrivateKey prikey = null;
if(signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SM3WITHSM2)){
pubkey = BCECUtil.convertX509ToECPublicKey(publicKey);
// prikey = BCECUtil.convertPKCS8ToECPrivateKey(privateKey);
}
if(signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA1WITHRSA) || signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA256WITHRSA) || signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA384WITHRSA)|| signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA512WITHRSA)){
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(publicKey);
//转公钥
pubkey = keyFactory.generatePublic(x509EncodedKeySpec);
//转私钥
// PKCS8EncodedKeySpec x509EncodedKeySpec1 = new PKCS8EncodedKeySpec(privateKey);
// prikey = keyFactory.generatePrivate(x509EncodedKeySpec1);
}
X500NameBuilder localX500NameBuilder = new X500NameBuilder(BCStyle.INSTANCE);
localX500NameBuilder.addRDN(BCStyle.CN, "userName or CompName"); //个人，企业用户名
localX500NameBuilder.addRDN(BCStyle.C, "CN"); //国家
localX500NameBuilder.addRDN(BCStyle.O, "39dian blog"); //机构名称
localX500NameBuilder.addRDN(BCStyle.ST, "shanghai"); //省
localX500NameBuilder.addRDN(BCStyle.L, "shanghai"); //市
localX500NameBuilder.addRDN(BCStyle.E, "[email protected]"); //邮箱
org.bouncycastle.asn1.x500.X500Name localX500Name = localX500NameBuilder.build();
JcaPKCS10CertificationRequestBuilder p10Builder = new JcaPKCS10CertificationRequestBuilder(localX500Name, pubkey);
JcaContentSignerBuilder csBuilder = new JcaContentSignerBuilder(signAlg);// 签名算法
/* ContentSigner signer = null;
if(signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SM3WITHSM2)){
signer = csBuilder.setProvider("BC").build(prikey);
}*/
// signer = csBuilder.build(prikey); // 私钥签名 localKeyPair.getPrivate()
PKCS10CertificationRequest csr = p10Builder.build(signer);// PKCS10的请求
return Base64.encodeBase64String(csr.getEncoded()); //P10 Base64 CSR
} catch (Exception ex) {
ex.printStackTrace();
}
return null;
}
②该方法需要使用者传入签名算法就可以生成P10,因为里面需要的公私钥都用随机数进行了计算生成，不需要再手动收入
/**
* 生成证书请求和公私玥。
* @param subject 基本信息
* @param signAlg 签名算法
* @return
* @throws NoSuchAlgorithmException
* @throws InvalidKeyException
* @throws OperatorCreationException
* @throws IOException
* @throws NoSuchProviderException
* @throws InvalidAlgorithmParameterException
*/
public static byte[] genUserReq(CertSubject subject, String signAlg) throws NoSuchAlgorithmException, InvalidKeyException, OperatorCreationException, IOException, NoSuchProviderException, InvalidAlgorithmParameterException {
//主题信息
org.bouncycastle.asn1.x500.X500Name userDN = subject.buildDN();
if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SM3WITHSM2)) {
//公私钥对
KeyPair userKP = SM2Util.generateKeyPair();
SM2PublicKey userPub = new SM2PublicKey(userKP.getPublic().getAlgorithm(),
(BCECPublicKey) userKP.getPublic());
//生成证书请求
byte[] userCSR = CommonUtil.createCSR(userDN, userPub, userKP.getPrivate(),
signAlg).getEncoded();
//保存
byte[] x = ((BCECPublicKey) userKP.getPublic()).getQ().getAffineXCoord().getEncoded();
byte[] y = ((BCECPublicKey) userKP.getPublic()).getQ().getAffineYCoord().getEncoded();
byte[] sk = ((BCECPrivateKey) userKP.getPrivate()).getD().toByteArray();
GenReqResult genReqResult = new GenReqResult(userCSR, x, y, sk);
return userCSR;
} else if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA256WITHRSA)) {
CertAndKeyGen gen = new CertAndKeyGen("RSA", SignAlg.SIGN_ALGO_SHA256WITHRSA);
gen.generate(1024);//生成1024位密钥
//生成证书请求
byte[] userCSR = CommonUtil.createCSR(userDN, gen.getPublicKey(), gen.getPrivateKey(),
signAlg).getEncoded();
return userCSR;
} else if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA384WITHRSA)) {
CertAndKeyGen gen = new CertAndKeyGen("RSA", SignAlg.SIGN_ALGO_SHA384WITHRSA);
gen.generate(1024);//生成1024位密钥
//生成证书请求
byte[] userCSR = CommonUtil.createCSR(userDN, gen.getPublicKey(), gen.getPrivateKey(),
signAlg).getEncoded();
return userCSR;
} else if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA512WITHRSA)) {
CertAndKeyGen gen = new CertAndKeyGen("RSA", SignAlg.SIGN_ALGO_SHA512WITHRSA);
gen.generate(1024);//生成1024位密钥
//生成证书请求
byte[] userCSR = CommonUtil.createCSR(userDN, gen.getPublicKey(), gen.getPrivateKey(),
signAlg).getEncoded();
return userCSR;
} else if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA1WITHRSA)) {
CertAndKeyGen gen = new CertAndKeyGen("RSA", SignAlg.SIGN_ALGO_SHA1WITHRSA);
gen.generate(1024);//生成1024位密钥
//生成证书请求
byte[] userCSR = CommonUtil.createCSR(userDN, gen.getPublicKey(), gen.getPrivateKey(),
signAlg).getEncoded();
return userCSR;
}
return null;
}
注：补充②中用到的CertSubject实体类
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x500.X500NameBuilder;
import org.bouncycastle.asn1.x500.style.BCStyle;
public class CertSubject {
public String country;
public String province;
public String locality;
public String orgName;
public String orgUnit;
public String commonName;
public String email;
public X500Name buildDN( ){
X500NameBuilder builder = new X500NameBuilder(BCStyle.INSTANCE);
if (country !=null) {
builder.addRDN(BCStyle.C, country);
}
if (province !=null) {
builder.addRDN(BCStyle.ST, province);
}
if (locality !=null) {
builder.addRDN(BCStyle.L, locality);
}
if (orgName !=null) {
builder.addRDN(BCStyle.O, orgName);
}
if (orgUnit !=null) {
builder.addRDN(BCStyle.OU, orgUnit);
}
if (commonName !=null) {
builder.addRDN(BCStyle.CN, commonName);
}
if (email !=null) {
builder.addRDN(BCStyle.E, email);
}
return builder.build();
}
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
public String getProvince() {
return province;
}
public void setProvince(String province) {
this.province = province;
}
public String getLocality() {
return locality;
}
public void setLocality(String locality) {
this.locality = locality;
}
public String getOrgName() {
return orgName;
}
public void setOrgName(String orgName) {
this.orgName = orgName;
}
public String getCommonName() {
return commonName;
}
public void setCommonName(String commonName) {
this.commonName = commonName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getOrgUnit() {
return orgUnit;
}
public void setOrgUnit(String orgUnit) {
this.orgUnit = orgUnit;
}
@Override
public String toString() {
return "CertSubject{" +
"country='" + country + '\'' +
", province='" + province + '\'' +
", locality='" + locality + '\'' +
", orgName='" + orgName + '\'' +
", orgUnit='" + orgUnit + '\'' +
", commonName='" + commonName + '\'' +
", email='" + email + '\'' +
'}';
}
2.上面工具类已成，下面开始调用，以第一种为例
直接上干货：
public void testP10(){
//生成P10
String signAlg = "SHA256WithRSA";
Security.addProvider(new org.bouncycastle.jce.provider.BouncyCastleProvider());
KeyPairGenerator localKeyPairGenerator = null;
String pubKey = null;
ContentSigner signer = null;
PrivateKey prikey1 = null;
KeyPair localKeyPair = null;
try {
if(signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA1WITHRSA) || signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA256WITHRSA) || signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA384WITHRSA)|| signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SHA512WITHRSA)){
localKeyPairGenerator = KeyPairGenerator.getInstance("RSA",new BouncyCastleProvider());
localKeyPairGenerator.initialize(1024);
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
localKeyPair = localKeyPairGenerator.genKeyPair();
// X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(localKeyPair.getPublic().getEncoded());
//转公钥
// pubkey1 = keyFactory.generatePublic(x509EncodedKeySpec);
//转私钥
PKCS8EncodedKeySpec x509EncodedKeySpec1 = new PKCS8EncodedKeySpec(localKeyPair.getPrivate().getEncoded());
// prikey1 = keyFactory.generatePrivate(x509EncodedKeySpec1);
} else if (signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SM3WITHSM2)) {
localKeyPairGenerator = KeyPairGenerator.getInstance("EC", new BouncyCastleProvider());
localKeyPairGenerator.initialize(new ECGenParameterSpec("sm2p256v1"));
localKeyPair = localKeyPairGenerator.genKeyPair();
// pubkey1 = BCECUtil.convertX509ToECPublicKey(localKeyPair.getPublic().getEncoded());
// prikey1 = BCECUtil.convertPKCS8ToECPrivateKey(localKeyPair.getPrivate().getEncoded());
}
pubKey = Base64.encodeBase64String(localKeyPair.getPublic().getEncoded()); //转Base64
//为了私钥的安全性，私钥签名过程需要用户自己来完成
JcaContentSignerBuilder csBuilder = new JcaContentSignerBuilder(signAlg);// 签名算法
if(signAlg.equalsIgnoreCase(SignAlg.SIGN_ALGO_SM3WITHSM2)){
signer = csBuilder.setProvider("BC").build(localKeyPair.getPrivate());
}
signer = csBuilder.build(localKeyPair.getPrivate()); // 私钥签名 localKeyPair.getPrivate()
} catch (Exception ex) {
ex.printStackTrace();
Assert.fail();
}
String P10 = makeCertificate(pubKey,signAlg,signer);
Log4jBean.logger.info("生成的P10为："+P10);
}
结果图示：
补上:BCECUtil .java
import org.bouncycastle.asn1.ASN1Encodable;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Encoding;
import org.bouncycastle.asn1.ASN1Integer;
import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1OctetString;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.DERNull;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.bouncycastle.asn1.pkcs.PrivateKeyInfo;
import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
import org.bouncycastle.asn1.x509.SubjectPublicKeyInfo;
import org.bouncycastle.asn1.x9.X962Parameters;
import org.bouncycastle.asn1.x9.X9ECParameters;
import org.bouncycastle.asn1.x9.X9ECPoint;
import org.bouncycastle.asn1.x9.X9ObjectIdentifiers;
import org.bouncycastle.crypto.AsymmetricCipherKeyPair;
import org.bouncycastle.crypto.generators.ECKeyPairGenerator;
import org.bouncycastle.crypto.params.ECDomainParameters;
import org.bouncycastle.crypto.params.ECKeyGenerationParameters;
import org.bouncycastle.crypto.params.ECKeyParameters;
import org.bouncycastle.crypto.params.ECPrivateKeyParameters;
import org.bouncycastle.crypto.params.ECPublicKeyParameters;
import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey;
import org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPublicKey;
import org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util;
import org.bouncycastle.jcajce.provider.asymmetric.util.ECUtil;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.jce.spec.ECNamedCurveSpec;
import org.bouncycastle.jce.spec.ECParameterSpec;
import org.bouncycastle.math.ec.ECCurve;
import org.bouncycastle.math.ec.ECPoint;
import org.bouncycastle.math.ec.FixedPointCombMultiplier;
import org.bouncycastle.pqc.math.linearalgebra.ByteUtils;
import org.bouncycastle.util.io.pem.PemObject;
import org.bouncycastle.util.io.pem.PemReader;
import org.bouncycastle.util.io.pem.PemWriter;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.math.BigInteger;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.SecureRandom;
import java.security.spec.ECGenParameterSpec;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
/**
* 这个工具类的方法，也适用于其他基于BC库的ECC算法
*/
public class BCECUtil {
private static final String ALGO_NAME_EC = "EC";
private static final String PEM_STRING_PUBLIC = "PUBLIC KEY";
private static final String PEM_STRING_ECPRIVATEKEY = "EC PRIVATE KEY";
/**
* 生成ECC密钥对
*
* @return ECC密钥对
*/
public static AsymmetricCipherKeyPair generateKeyPairParameter(
ECDomainParameters domainParameters, SecureRandom random) {
ECKeyGenerationParameters keyGenerationParams = new ECKeyGenerationParameters(domainParameters,
random);
ECKeyPairGenerator keyGen = new ECKeyPairGenerator();
keyGen.init(keyGenerationParams);
return keyGen.generateKeyPair();
}
public static KeyPair generateKeyPair(ECDomainParameters domainParameters, SecureRandom random)
throws NoSuchProviderException, NoSuchAlgorithmException,
InvalidAlgorithmParameterException {
KeyPairGenerator kpg = KeyPairGenerator.getInstance(ALGO_NAME_EC, BouncyCastleProvider.PROVIDER_NAME);
ECParameterSpec parameterSpec = new ECParameterSpec(domainParameters.getCurve(), domainParameters.getG(),
domainParameters.getN(), domainParameters.getH());
kpg.initialize(parameterSpec, random);
return kpg.generateKeyPair();
}
public static int getCurveLength(ECKeyParameters ecKey) {
return getCurveLength(ecKey.getParameters());
}
public static int getCurveLength(ECDomainParameters domainParams) {
return (domainParams.getCurve().getFieldSize() + 7) / 8;
}
public static byte[] fixToCurveLengthBytes(int curveLength, byte[] src) {
if (src.length == curveLength) {
return src;
}
byte[] result = new byte[curveLength];
if (src.length > curveLength) {
System.arraycopy(src, src.length - result.length, result, 0, result.length);
} else {
System.arraycopy(src, 0, result, result.length - src.length, src.length);
}
return result;
}
/**
* @param dHex 十六进制字符串形式的私钥d值，如果是SM2算法，Hex字符串长度应该是64（即32字节）
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPrivateKeyParameters createECPrivateKeyParameters(
String dHex, ECDomainParameters domainParameters) {
return createECPrivateKeyParameters(ByteUtils.fromHexString(dHex), domainParameters);
}
/**
* @param dBytes 字节数组形式的私钥d值，如果是SM2算法，应该是32字节
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPrivateKeyParameters createECPrivateKeyParameters(
byte[] dBytes, ECDomainParameters domainParameters) {
return createECPrivateKeyParameters(new BigInteger(1, dBytes), domainParameters);
}
/**
* @param d 大数形式的私钥d值
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPrivateKeyParameters createECPrivateKeyParameters(
BigInteger d, ECDomainParameters domainParameters) {
return new ECPrivateKeyParameters(d, domainParameters);
}
/**
* 根据EC私钥构造EC公钥
*
* @param priKey ECC私钥参数对象
* @return
*/
public static ECPublicKeyParameters buildECPublicKeyByPrivateKey(ECPrivateKeyParameters priKey) {
ECDomainParameters domainParameters = priKey.getParameters();
ECPoint q = new FixedPointCombMultiplier().multiply(domainParameters.getG(), priKey.getD());
return new ECPublicKeyParameters(q, domainParameters);
}
/**
* @param x 大数形式的公钥x分量
* @param y 大数形式的公钥y分量
* @param curve EC曲线参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#CURVE}
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPublicKeyParameters createECPublicKeyParameters(
BigInteger x, BigInteger y, ECCurve curve, ECDomainParameters domainParameters) {
return createECPublicKeyParameters(x.toByteArray(), y.toByteArray(), curve, domainParameters);
}
/**
* @param xHex 十六进制形式的公钥x分量，如果是SM2算法，Hex字符串长度应该是64（即32字节）
* @param yHex 十六进制形式的公钥y分量，如果是SM2算法，Hex字符串长度应该是64（即32字节）
* @param curve EC曲线参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#CURVE}
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPublicKeyParameters createECPublicKeyParameters(
String xHex, String yHex, ECCurve curve, ECDomainParameters domainParameters) {
return createECPublicKeyParameters(ByteUtils.fromHexString(xHex), ByteUtils.fromHexString(yHex),
curve, domainParameters);
}
/**
* @param xBytes 十六进制形式的公钥x分量，如果是SM2算法，应该是32字节
* @param yBytes 十六进制形式的公钥y分量，如果是SM2算法，应该是32字节
* @param curve EC曲线参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#CURVE}
* @param domainParameters EC Domain参数，一般是固定的，如果是SM2算法的可参考{@link SM2Util#DOMAIN_PARAMS}
* @return
*/
public static ECPublicKeyParameters createECPublicKeyParameters(
byte[] xBytes, byte[] yBytes, ECCurve curve, ECDomainParameters domainParameters) {
final byte uncompressedFlag = 0x04;
int curveLength = getCurveLength(domainParameters);
xBytes = fixToCurveLengthBytes(curveLength, xBytes);
yBytes = fixToCurveLengthBytes(curveLength, yBytes);
byte[] encodedPubKey = new byte[1 + xBytes.length + yBytes.length];
encodedPubKey[0] = uncompressedFlag;
System.arraycopy(xBytes, 0, encodedPubKey, 1, xBytes.length);
System.arraycopy(yBytes, 0, encodedPubKey, 1 + xBytes.length, yBytes.length);
return new ECPublicKeyParameters(curve.decodePoint(encodedPubKey), domainParameters);
}
public static ECPrivateKeyParameters convertPrivateKeyToParameters(BCECPrivateKey ecPriKey) {
ECParameterSpec parameterSpec = ecPriKey.getParameters();
ECDomainParameters domainParameters = new ECDomainParameters(parameterSpec.getCurve(), parameterSpec.getG(),
parameterSpec.getN(), parameterSpec.getH());
return new ECPrivateKeyParameters(ecPriKey.getD(), domainParameters);
}
public static ECPublicKeyParameters convertPublicKeyToParameters(BCECPublicKey ecPubKey) {
ECParameterSpec parameterSpec = ecPubKey.getParameters();
ECDomainParameters domainParameters = new ECDomainParameters(parameterSpec.getCurve(), parameterSpec.getG(),
parameterSpec.getN(), parameterSpec.getH());
return new ECPublicKeyParameters(ecPubKey.getQ(), domainParameters);
}
public static BCECPublicKey createPublicKeyFromSubjectPublicKeyInfo(SubjectPublicKeyInfo subPubInfo)
throws NoSuchProviderException,
NoSuchAlgorithmException, InvalidKeySpecException, IOException {
return BCECUtil.convertX509ToECPublicKey(subPubInfo.toASN1Primitive().getEncoded(ASN1Encoding.DER));
}
/**
* 将ECC私钥转换为PKCS8标准的字节流
*
* @param priKey
* @param pubKey 可以为空，但是如果为空的话得到的结果OpenSSL可能解析不了
* @return
*/
public static byte[] convertECPrivateKeyToPKCS8(
ECPrivateKeyParameters priKey, ECPublicKeyParameters pubKey) {
ECDomainParameters domainParams = priKey.getParameters();
ECParameterSpec spec = new ECParameterSpec(domainParams.getCurve(), domainParams.getG(),
domainParams.getN(), domainParams.getH());
BCECPublicKey publicKey = null;
if (pubKey != null) {
publicKey = new BCECPublicKey(ALGO_NAME_EC, pubKey, spec,
BouncyCastleProvider.CONFIGURATION);
}
BCECPrivateKey privateKey = new BCECPrivateKey(ALGO_NAME_EC, priKey, publicKey,
spec, BouncyCastleProvider.CONFIGURATION);
return privateKey.getEncoded();
}
/**
* 将PKCS8标准的私钥字节流转换为私钥对象
*
* @param pkcs8Key
* @return
* @throws NoSuchAlgorithmException
* @throws NoSuchProviderException
* @throws InvalidKeySpecException
*/
public static BCECPrivateKey convertPKCS8ToECPrivateKey(byte[] pkcs8Key)
throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException {
PKCS8EncodedKeySpec peks = new PKCS8EncodedKeySpec(pkcs8Key);
KeyFactory kf = KeyFactory.getInstance(ALGO_NAME_EC, BouncyCastleProvider.PROVIDER_NAME);
return (BCECPrivateKey) kf.generatePrivate(peks);
}
/**
* 将PKCS8标准的私钥字节流转换为PEM
*
* @param encodedKey
* @return
* @throws IOException
*/
public static String convertECPrivateKeyPKCS8ToPEM(byte[] encodedKey) throws IOException {
return convertEncodedDataToPEM(PEM_STRING_ECPRIVATEKEY, encodedKey);
}
/**
* 将PEM格式的私钥转换为PKCS8标准字节流
*
* @param pemString
* @return
* @throws IOException
*/
public static byte[] convertECPrivateKeyPEMToPKCS8(String pemString) throws IOException {
return convertPEMToEncodedData(pemString);
}
/**
* 将ECC私钥转换为SEC1标准的字节流
* openssl d2i_ECPrivateKey函数要求的DER编码的私钥也是SEC1标准的，
* 这个工具函数的主要目的就是为了能生成一个openssl可以直接“识别”的ECC私钥.
* 相对new NetworkConnPub().getProtocolHostPort()私钥的PKCS1标准，ECC私钥的标准为SEC1
*
* @param priKey
* @param pubKey
* @return
* @throws IOException
*/
public static byte[] convertECPrivateKeyToSEC1(
ECPrivateKeyParameters priKey, ECPublicKeyParameters pubKey) throws IOException {
byte[] pkcs8Bytes = convertECPrivateKeyToPKCS8(priKey, pubKey);
PrivateKeyInfo pki = PrivateKeyInfo.getInstance(pkcs8Bytes);
ASN1Encodable encodable = pki.parsePrivateKey();
ASN1Primitive primitive = encodable.toASN1Primitive();
byte[] sec1Bytes = primitive.getEncoded();
return sec1Bytes;
}
/**
* 将SEC1标准的私钥字节流恢复为PKCS8标准的字节流
*
* @param sec1Key
* @return
* @throws IOException
*/
public static byte[] convertECPrivateKeySEC1ToPKCS8(byte[] sec1Key) throws IOException {
/**
* 参考org.bouncycastle.asn1.pkcs.PrivateKeyInfo和
* org.bouncycastle.jcajce.provider.asymmetric.ec.BCECPrivateKey，逆向拼装
*/
X962Parameters params = getDomainParametersFromName(SM2Util.JDK_EC_SPEC, false);
ASN1OctetString privKey = new DEROctetString(sec1Key);
ASN1EncodableVector v = new ASN1EncodableVector();
v.add(new ASN1Integer(0)); //版本号
v.add(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params)); //算法标识
v.add(privKey);
DERSequence ds = new DERSequence(v);
return ds.getEncoded(ASN1Encoding.DER);
}
/**
* 将SEC1标准的私钥字节流转为BCECPrivateKey对象
*
* @param sec1Key
* @return
* @throws NoSuchAlgorithmException
* @throws NoSuchProviderException
* @throws InvalidKeySpecException
* @throws IOException
*/
public static BCECPrivateKey convertSEC1ToBCECPrivateKey(byte[] sec1Key)
throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException, IOException {
PKCS8EncodedKeySpec peks = new PKCS8EncodedKeySpec(convertECPrivateKeySEC1ToPKCS8(sec1Key));
KeyFactory kf = KeyFactory.getInstance(ALGO_NAME_EC, BouncyCastleProvider.PROVIDER_NAME);
return (BCECPrivateKey) kf.generatePrivate(peks);
}
/**
* 将SEC1标准的私钥字节流转为ECPrivateKeyParameters对象
* openssl i2d_ECPrivateKey函数生成的DER编码的ecc私钥是：SEC1标准的、带有EC_GROUP、带有公钥的，
* 这个工具函数的主要目的就是为了使Java程序能够“识别”openssl生成的ECC私钥
*
* @param sec1Key
* @return
* @throws NoSuchAlgorithmException
* @throws NoSuchProviderException
* @throws InvalidKeySpecException
*/
public static ECPrivateKeyParameters convertSEC1ToECPrivateKey(byte[] sec1Key)
throws NoSuchAlgorithmException, NoSuchProviderException, InvalidKeySpecException, IOException {
BCECPrivateKey privateKey = convertSEC1ToBCECPrivateKey(sec1Key);
return convertPrivateKeyToParameters(privateKey);
}
/**
* 将ECC公钥对象转换为X509标准的字节流
*
* @param pubKey
* @return
*/
public static byte[] convertECPublicKeyToX509(ECPublicKeyParameters pubKey) {
ECDomainParameters domainParams = pubKey.getParameters();
ECParameterSpec spec = new ECParameterSpec(domainParams.getCurve(), domainParams.getG(),
domainParams.getN(), domainParams.getH());
BCECPublicKey publicKey = new BCECPublicKey(ALGO_NAME_EC, pubKey, spec,
BouncyCastleProvider.CONFIGURATION);
return publicKey.getEncoded();
}
/**
* 将X509标准的公钥字节流转为公钥对象
*
* @param x509Bytes
* @return
* @throws NoSuchProviderException
* @throws NoSuchAlgorithmException
* @throws InvalidKeySpecException
*/
public static BCECPublicKey convertX509ToECPublicKey(byte[] x509Bytes) throws NoSuchProviderException,
NoSuchAlgorithmException, InvalidKeySpecException {
X509EncodedKeySpec eks = new X509EncodedKeySpec(x509Bytes);
KeyFactory kf = KeyFactory.getInstance("EC", BouncyCastleProvider.PROVIDER_NAME);
return (BCECPublicKey) kf.generatePublic(eks);
}
/**
* 将X509标准的公钥字节流转为PEM
*
* @param encodedKey
* @return
* @throws IOException
*/
public static String convertECPublicKeyX509ToPEM(byte[] encodedKey) throws IOException {
return convertEncodedDataToPEM(PEM_STRING_PUBLIC, encodedKey);
}
/**
* 将PEM格式的公钥转为X509标准的字节流
*
* @param pemString
* @return
* @throws IOException
*/
public static byte[] convertECPublicKeyPEMToX509(String pemString) throws IOException {
return convertPEMToEncodedData(pemString);
}
/**
* copy from BC
*
* @param genSpec
* @return
*/
public static X9ECParameters getDomainParametersFromGenSpec(ECGenParameterSpec genSpec) {
return getDomainParametersFromName(genSpec.getName());
}
/**
* copy from BC
*
* @param curveName
* @return
*/
public static X9ECParameters getDomainParametersFromName(String curveName) {
X9ECParameters domainParameters;
try {
if (curveName.charAt(0) >= '0' && curveName.charAt(0) <= '2') {
ASN1ObjectIdentifier oidID = new ASN1ObjectIdentifier(curveName);
domainParameters = ECUtil.getNamedCurveByOid(oidID);
} else {
if (curveName.indexOf(' ') > 0) {
curveName = curveName.substring(curveName.indexOf(' ') + 1);
domainParameters = ECUtil.getNamedCurveByName(curveName);
} else {
domainParameters = ECUtil.getNamedCurveByName(curveName);
}
}
} catch (IllegalArgumentException ex) {
domainParameters = ECUtil.getNamedCurveByName(curveName);
}
return domainParameters;
}
/**
* copy from BC
*
* @param ecSpec
* @param withCompression
* @return
*/
public static X962Parameters getDomainParametersFromName(
java.security.spec.ECParameterSpec ecSpec, boolean withCompression) {
X962Parameters params;
if (ecSpec instanceof ECNamedCurveSpec) {
ASN1ObjectIdentifier curveOid = ECUtil.getNamedCurveOid(((ECNamedCurveSpec) ecSpec).getName());
if (curveOid == null) {
curveOid = new ASN1ObjectIdentifier(((ECNamedCurveSpec) ecSpec).getName());
}
params = new X962Parameters(curveOid);
} else if (ecSpec == null) {
params = new X962Parameters(DERNull.INSTANCE);
} else {
ECCurve curve = EC5Util.convertCurve(ecSpec.getCurve());
X9ECParameters ecP = new X9ECParameters(
curve,
new X9ECPoint(EC5Util.convertPoint(curve, ecSpec.getGenerator()), withCompression),
ecSpec.getOrder(),
BigInteger.valueOf(ecSpec.getCofactor()),
ecSpec.getCurve().getSeed());
如果是1.62或更低版本的bcprov-jdk15on应该使用以下这段代码，因为高版本的EC5Util.convertPoint没有向下兼容
/*
X9ECParameters ecP = new X9ECParameters(
curve,
EC5Util.convertPoint(curve, ecSpec.getGenerator(), withCompression),
ecSpec.getOrder(),
BigInteger.valueOf(ecSpec.getCofactor()),
ecSpec.getCurve().getSeed());
*/
params = new X962Parameters(ecP);
}
return params;
}
private static String convertEncodedDataToPEM(String type, byte[] encodedData) throws IOException {
ByteArrayOutputStream bOut = new ByteArrayOutputStream();
PemWriter pWrt = new PemWriter(new OutputStreamWriter(bOut));
try {
PemObject pemObj = new PemObject(type, encodedData);
pWrt.writeObject(pemObj);
} finally {
pWrt.close();
}
return new String(bOut.toByteArray());
}
private static byte[] convertPEMToEncodedData(String pemString) throws IOException {
ByteArrayInputStream bIn = new ByteArrayInputStream(pemString.getBytes());
PemReader pRdr = new PemReader(new InputStreamReader(bIn));
try {
PemObject pemObject = pRdr.readPemObject();
return pemObject.getContent();
} finally {
pRdr.close();
}
}
}
版权声明：本文为博主原创文章，遵循 CC 4.0 BY-SA 版权协议，转载请附上原文出处链接和本声明。
智能推荐
oracle 12c 集群安装后的检查_12c查看crs状态-程序员宅基地
文章浏览阅读1.6k次。安装配置gi、安装数据库软件、dbca建库见下：http://blog.csdn.net/kadwf123/article/details/784299611、检查集群节点及状态：[root@rac2 ~]# olsnodes -srac1 Activerac2 Activerac3 Activerac4 Active[root@rac2 ~]_12c查看crs状态
解决jupyter notebook无法找到虚拟环境的问题_jupyter没有pytorch环境-程序员宅基地
文章浏览阅读1.3w次，点赞45次，收藏99次。我个人用的是anaconda3的一个python集成环境，自带jupyter notebook，但在我打开jupyter notebook界面后，却找不到对应的虚拟环境，原来是jupyter notebook只是通用于下载anaconda时自带的环境，其他环境要想使用必须手动下载一些库：1.首先进入到自己创建的虚拟环境(pytorch是虚拟环境的名字)activate pytorch2.在该环境下下载这个库conda install ipykernelconda install nb__jupyter没有pytorch环境
国内安装scoop的保姆教程_scoop-cn-程序员宅基地
文章浏览阅读5.2k次，点赞19次，收藏28次。选择scoop纯属意外，也是无奈，因为电脑用户被锁了管理员权限，所有exe安装程序都无法安装，只可以用绿色软件，最后被我发现scoop，省去了到处下载XXX绿色版的烦恼，当然scoop里需要管理员权限的软件也跟我无缘了（譬如everything）。推荐添加dorado这个bucket镜像，里面很多中文软件，但是部分国外的软件下载地址在github，可能无法下载。以上两个是官方bucket的国内镜像，所有软件建议优先从这里下载。上面可以看到很多bucket以及软件数。如果官网登陆不了可以试一下以下方式。_scoop-cn
Element ui colorpicker在Vue中的使用_vue el-color-picker-程序员宅基地
文章浏览阅读4.5k次，点赞2次，收藏3次。首先要有一个color-picker组件 <el-color-picker v-model="headcolor"></el-color-picker>在data里面data() { return {headcolor: ’ #278add ’ //这里可以选择一个默认的颜色} }然后在你想要改变颜色的地方用v-bind绑定就好了，例如：这里的:sty..._vue el-color-picker
迅为iTOP-4412精英版之烧写内核移植后的镜像_exynos 4412 刷机-程序员宅基地
文章浏览阅读640次。基于芯片日益增长的问题，所以内核开发者们引入了新的方法，就是在内核中只保留函数，而数据则不包含，由用户（应用程序员）自己把数据按照规定的格式编写，并放在约定的地方，为了不占用过多的内存，还要求数据以根精简的方式编写。boot启动时，传参给内核，告诉内核设备树文件和kernel的位置，内核启动时根据地址去找到设备树文件，再利用专用的编译器去反编译dtb文件，将dtb还原成数据结构，以供驱动的函数去调用。firmware是三星的一个固件的设备信息，因为找不到固件，所以内核启动不成功。_exynos 4412 刷机
Linux系统配置jdk_linux配置jdk-程序员宅基地
文章浏览阅读2w次，点赞24次，收藏42次。Linux系统配置jdkLinux学习教程，Linux入门教程（超详细）_linux配置jdk
随便推点
matlab(4)：特殊符号的输入_matlab微米怎么输入-程序员宅基地
文章浏览阅读3.3k次，点赞5次，收藏19次。xlabel('\delta');ylabel('AUC');具体符号的对照表参照下图：_matlab微米怎么输入
C语言程序设计-文件(打开与关闭、顺序、二进制读写)-程序员宅基地
文章浏览阅读119次。顺序读写指的是按照文件中数据的顺序进行读取或写入。对于文本文件，可以使用fgets、fputs、fscanf、fprintf等函数进行顺序读写。在C语言中，对文件的操作通常涉及文件的打开、读写以及关闭。文件的打开使用fopen函数，而关闭则使用fclose函数。在C语言中，可以使用fread和fwrite函数进行二进制读写。 Biaoge 于2024-03-09 23:51发布 阅读量：7 ️文章类型：【 C语言程序设计 】在C语言中，用于打开文件的函数是____，用于关闭文件的函数是____。
Touchdesigner自学笔记之三_touchdesigner怎么让一个模型跟着鼠标移动-程序员宅基地
文章浏览阅读3.4k次，点赞2次，收藏13次。跟随鼠标移动的粒子以grid（SOP）为partical（SOP）的资源模板，调整后连接【Geo组合+point spirit（MAT)】，在连接【feedback组合】适当调整。影响粒子动态的节点【metaball(SOP)+force(SOP)】添加mouse in（CHOP)鼠标位置到metaball的坐标，实现鼠标影响。..._touchdesigner怎么让一个模型跟着鼠标移动
【附源码】基于java的校园停车场管理系统的设计与实现61m0e9计算机毕设SSM_基于java技术的停车场管理系统实现与设计-程序员宅基地
文章浏览阅读178次。项目运行环境配置：Jdk1.8 + Tomcat7.0 + Mysql + HBuilderX（Webstorm也行）+ Eclispe（IntelliJ IDEA,Eclispe,MyEclispe,Sts都支持）。项目技术：Springboot + mybatis + Maven +mysql5.7或8.0+html+css+js等等组成，B/S模式 + Maven管理等等。环境需要1.运行环境：最好是java jdk 1.8，我们在这个平台上运行的。其他版本理论上也可以。_基于java技术的停车场管理系统实现与设计
Android系统播放器MediaPlayer源码分析_android多媒体播放源码分析 时序图-程序员宅基地
文章浏览阅读3.5k次。前言对于MediaPlayer播放器的源码分析内容相对来说比较多，会从Java-&amp;gt;Jni-&amp;gt;C/C++慢慢分析，后面会慢慢更新。另外，博客只作为自己学习记录的一种方式，对于其他的不过多的评论。MediaPlayerDemopublic class MainActivity extends AppCompatActivity implements SurfaceHolder.Cal..._android多媒体播放源码分析 时序图
java 数据结构与算法 ——快速排序法-程序员宅基地
文章浏览阅读2.4k次，点赞41次，收藏13次。java 数据结构与算法 ——快速排序法_快速排序法