将PEM导入Java密钥库

Question

我正在尝试连接到SSL服务器,这需要我对自己进行身份验证.为了在Apache MINA上使用SSL,我需要一个合适的JKS文件.但是,我只获得了一个.PEM文件.

我如何从PEM文件创建JKS文件？

Answer 1

首先,以DER格式转换证书:

openssl x509 -outform der -in certificate.pem -out certificate.der

之后,将其导入密钥库:

keytool -import -alias your-alias -keystore cacerts -file certificate.der

Answer 2

如果您只想将PEM格式的证书导入密钥库,则keytool将完成以下任务:

keytool -import -alias *alias* -keystore cacerts -file *cert.pem*

Answer 3

我开发了http://code.google.com/p/java-keyutil/,它将PEM证书直接导入Java密钥库.其主要目的是导入多部分PEM操作系统证书包,例如ca-bundle.crt.这些通常包括keytool无法处理的标头

</self promotion>

Answer 4

在我的情况下,我有一个pem文件,其中包含两个证书和一个用于相互SSL身份验证的加密私钥.所以我的pem文件看起来像这样:

-----BEGIN CERTIFICATE-----

...

-----END CERTIFICATE-----

-----BEGIN RSA PRIVATE KEY-----

Proc-Type: 4,ENCRYPTED

DEK-Info: DES-EDE3-CBC,C8BF220FC76AA5F9

...

-----END RSA PRIVATE KEY-----

-----BEGIN CERTIFICATE-----

...

-----END CERTIFICATE-----

这就是我做的

将文件拆分为三个单独的文件,以便每个文件只包含一个条目,---BEGIN..以---END..行开头和结尾.让我们假设我们现在有三个文件:cert1.pem,cert2.pem,和pkey.pem.

pkey.pem使用openssl和以下语法转换为DER格式:

openssl pkcs8 -topk8 -nocrypt -in pkey.pem -inform PEM -out pkey.der -outform DER

请注意,如果私钥被加密,您需要提供密码(从原始pem文件的供应商处获取)以转换为DER格式, openssl将要求您输入如下密码:"输入密码pkey.pem:".

如果转换成功,您将获得一个名为的新文件pkey.der.

创建一个新的Java密钥库并导入私钥和证书:

String keypass = "password";  // this is a new password, you need to come up with to protect your java key store file
String defaultalias = "importkey";
KeyStore ks = KeyStore.getInstance("JKS", "SUN");

// this section does not make much sense to me, 
// but I will leave it intact as this is how it was in the original example I found on internet:   
ks.load( null, keypass.toCharArray());
ks.store( new FileOutputStream ( "mykeystore"  ), keypass.toCharArray());
ks.load( new FileInputStream ( "mykeystore" ),    keypass.toCharArray());
// end of section..


// read the key file from disk and create a PrivateKey

FileInputStream fis = new FileInputStream("pkey.der");
DataInputStream dis = new DataInputStream(fis);
byte[] bytes = new byte[dis.available()];
dis.readFully(bytes);
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);

byte[] key = new byte[bais.available()];
KeyFactory kf = KeyFactory.getInstance("RSA");
bais.read(key, 0, bais.available());
bais.close();

PKCS8EncodedKeySpec keysp = new PKCS8EncodedKeySpec ( key );
PrivateKey ff = kf.generatePrivate (keysp);


// read the certificates from the files and load them into the key store:

Collection  col_crt1 = CertificateFactory.getInstance("X509").generateCertificates(new FileInputStream("cert1.pem"));
Collection  col_crt2 = CertificateFactory.getInstance("X509").generateCertificates(new FileInputStream("cert2.pem"));

Certificate crt1 = (Certificate) col_crt1.iterator().next();
Certificate crt2 = (Certificate) col_crt2.iterator().next();
Certificate[] chain = new Certificate[] { crt1, crt2 };

String alias1 = ((X509Certificate) crt1).getSubjectX500Principal().getName();
String alias2 = ((X509Certificate) crt2).getSubjectX500Principal().getName();

ks.setCertificateEntry(alias1, crt1);
ks.setCertificateEntry(alias2, crt2);

// store the private key
ks.setKeyEntry(defaultalias, ff, keypass.toCharArray(), chain );

// save the key store to a file         
ks.store(new FileOutputStream ( "mykeystore" ),keypass.toCharArray());

(可选)验证新密钥库的内容:

$ keytool -list -keystore mykeystore -storepass password

密钥库类型:JKS密钥库提供商:SUN

您的密钥库包含3个条目:

• cn = ...,ou = ...,o = ..,2014年9月2日,trustedCertEntry,证书指纹(SHA1):2C:B8:...

• importkey,2014年9月2日,PrivateKeyEntry,证书指纹(SHA1):9C:B0:...

• cn = ...,o = ....,2014年9月2日,trustedCertEntry,证书指纹(SHA1):83:63:...

(可选)针对您的SSL服务器测试新密钥存储区中的证书和私钥:(您可能希望启用调试作为VM选项:-Djavax.net.debug = all)

        char[] passw = "password".toCharArray();
        KeyStore ks = KeyStore.getInstance("JKS", "SUN");
        ks.load(new FileInputStream ( "mykeystore" ), passw );

        KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
        kmf.init(ks, passw);

        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init(ks);
        TrustManager[] tm = tmf.getTrustManagers();

        SSLContext sclx = SSLContext.getInstance("TLS");
        sclx.init( kmf.getKeyManagers(), tm, null);

        SSLSocketFactory factory = sclx.getSocketFactory();
        SSLSocket socket = (SSLSocket) factory.createSocket( "192.168.1.111", 443 );
        socket.startHandshake();

        //if no exceptions are thrown in the startHandshake method, then everything is fine..

如果计划使用它,最后使用HttpsURLConnection注册您的证书:

        char[] passw = "password".toCharArray();
        KeyStore ks = KeyStore.getInstance("JKS", "SUN");
        ks.load(new FileInputStream ( "mykeystore" ), passw );

        KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
        kmf.init(ks, passw);

        TrustManagerFactory tmf = TrustManagerFactory.getInstance(TrustManagerFactory.getDefaultAlgorithm());
        tmf.init(ks);
        TrustManager[] tm = tmf.getTrustManagers();

        SSLContext sclx = SSLContext.getInstance("TLS");
        sclx.init( kmf.getKeyManagers(), tm, null);

        HostnameVerifier hv = new HostnameVerifier()
        {
            public boolean verify(String urlHostName, SSLSession session)
            {
                if (!urlHostName.equalsIgnoreCase(session.getPeerHost()))
                {
                    System.out.println("Warning: URL host '" + urlHostName + "' is different to SSLSession host '" + session.getPeerHost() + "'.");
                }
                return true;
            }
        };

        HttpsURLConnection.setDefaultSSLSocketFactory( sclx.getSocketFactory() );
        HttpsURLConnection.setDefaultHostnameVerifier(hv);

Answer 5

我总是忘记如何做到这一点,因为这是我偶尔会做的事情,这是一种可能的解决方案,它只是起作用:

1. 转到您喜欢的浏览器并从安全网站下载主证书.

2. 执行以下两行代码:

   $ openssl x509 -outform der -in GlobalSignRootCA.crt -out GlobalSignRootCA.der
   $ keytool -import -alias GlobalSignRootCA -keystore GlobalSignRootCA.jks -file GlobalSignRootCA.der
   

3. 如果在Java SE环境中执行,请添加以下选项:

   $ java -Djavax.net.ssl.trustStore=GlobalSignRootCA.jks -Djavax.net.ssl.trustStorePassword=trustStorePassword -jar MyJar.jar
   

4. 或者将以下内容添加到java代码中:

   System.setProperty("javax.net.ssl.trustStore", "GlobalSignRootCA.jks");
   System.setProperty("javax.net.ssl.trustStorePassword","trustStorePassword");
   

步骤2的另一个选项是仅使用该keytool命令.贝娄是一个证书链的例子:

$ keytool -import -file org.eu.crt -alias orgcrt -keystore globalsignrs.jks
$ keytool -import -file GlobalSignOrganizationValidationCA-SHA256-G2.crt -alias globalsignorgvalca -keystore globalsignrs.jks
$ keytool -import -file GlobalSignRootCA.crt -alias globalsignrootca -keystore globalsignrs.jks

Answer 6

我使用了密钥库资源管理器

1. 用私钥打开 JKS
2. 检查来自 CA 的签名 PEM
3. 导入密钥
4. 保存 JKS

Answer 7

如果您需要一种简单的方法来用Java加载PEM文件而无需使用外部工具（opensll，keytool），这是我在生产环境中使用的代码：

import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.security.KeyFactory;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.PrivateKey;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.security.interfaces.RSAPrivateKey;
import java.security.spec.InvalidKeySpecException;
import java.security.spec.PKCS8EncodedKeySpec;
import java.util.ArrayList;
import java.util.List;

import javax.net.ssl.KeyManager;
import javax.net.ssl.KeyManagerFactory;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLServerSocketFactory;
import javax.xml.bind.DatatypeConverter;

public class PEMImporter {

    public static SSLServerSocketFactory createSSLFactory(File privateKeyPem, File certificatePem, String password) throws Exception {
        final SSLContext context = SSLContext.getInstance("TLS");
        final KeyStore keystore = createKeyStore(privateKeyPem, certificatePem, password);
        final KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
        kmf.init(keystore, password.toCharArray());
        final KeyManager[] km = kmf.getKeyManagers();
        context.init(km, null, null);
        return context.getServerSocketFactory();
    }

    /**
     * Create a KeyStore from standard PEM files
     * 
     * @param privateKeyPem the private key PEM file
     * @param certificatePem the certificate(s) PEM file
     * @param the password to set to protect the private key
     */
    public static KeyStore createKeyStore(File privateKeyPem, File certificatePem, final String password)
            throws Exception, KeyStoreException, IOException, NoSuchAlgorithmException, CertificateException {
        final X509Certificate[] cert = createCertificates(certificatePem);
        final KeyStore keystore = KeyStore.getInstance("JKS");
        keystore.load(null);
        // Import private key
        final PrivateKey key = createPrivateKey(privateKeyPem);
        keystore.setKeyEntry(privateKeyPem.getName(), key, password.toCharArray(), cert);
        return keystore;
    }

    private static PrivateKey createPrivateKey(File privateKeyPem) throws Exception {
        final BufferedReader r = new BufferedReader(new FileReader(privateKeyPem));
        String s = r.readLine();
        if (s == null || !s.contains("BEGIN PRIVATE KEY")) {
            r.close();
            throw new IllegalArgumentException("No PRIVATE KEY found");
        }
        final StringBuilder b = new StringBuilder();
        s = "";
        while (s != null) {
            if (s.contains("END PRIVATE KEY")) {
                break;
            }
            b.append(s);
            s = r.readLine();
        }
        r.close();
        final String hexString = b.toString();
        final byte[] bytes = DatatypeConverter.parseBase64Binary(hexString);
        return generatePrivateKeyFromDER(bytes);
    }

    private static X509Certificate[] createCertificates(File certificatePem) throws Exception {
        final List<X509Certificate> result = new ArrayList<X509Certificate>();
        final BufferedReader r = new BufferedReader(new FileReader(certificatePem));
        String s = r.readLine();
        if (s == null || !s.contains("BEGIN CERTIFICATE")) {
            r.close();
            throw new IllegalArgumentException("No CERTIFICATE found");
        }
        StringBuilder b = new StringBuilder();
        while (s != null) {
            if (s.contains("END CERTIFICATE")) {
                String hexString = b.toString();
                final byte[] bytes = DatatypeConverter.parseBase64Binary(hexString);
                X509Certificate cert = generateCertificateFromDER(bytes);
                result.add(cert);
                b = new StringBuilder();
            } else {
                if (!s.startsWith("----")) {
                    b.append(s);
                }
            }
            s = r.readLine();
        }
        r.close();

        return result.toArray(new X509Certificate[result.size()]);
    }

    private static RSAPrivateKey generatePrivateKeyFromDER(byte[] keyBytes) throws InvalidKeySpecException, NoSuchAlgorithmException {
        final PKCS8EncodedKeySpec spec = new PKCS8EncodedKeySpec(keyBytes);
        final KeyFactory factory = KeyFactory.getInstance("RSA");
        return (RSAPrivateKey) factory.generatePrivate(spec);
    }

    private static X509Certificate generateCertificateFromDER(byte[] certBytes) throws CertificateException {
        final CertificateFactory factory = CertificateFactory.getInstance("X.509");
        return (X509Certificate) factory.generateCertificate(new ByteArrayInputStream(certBytes));
    }

}

玩得开心。

Answer 8

还有一个 GUI 工具，允许可视化 JKS 创建和证书导入。

http://portecle.sourceforge.net/

Portecle 是一个用户友好的 GUI 应用程序，用于创建、管理和检查密钥库、密钥、证书、证书请求、证书撤销列表等。