在 pkcs12 密钥库中保存证书链

security ssl java bouncycastle digital-certificate

2022-09-01 23:44:06

下面的代码：

//used Bouncy Castle provider for keyStore
keyStore.setKeyEntry(alias, (Key)keyPair.getPrivate(), pwd, certChain);

其中，certChain 保存结束证书和颁发者证书（即两个证书），
如果 keyStore 是的实例，则不会将颁发者证书作为链的一部分保存在保存到文件系统密钥库文件中。PKCS12

如果密钥库类型为，则它会保存这两个证书。这是为什么呢？难道 PKCS12 不是假设两个证书都是链的一部分吗？PKCS12-3DES-3DES

编辑：这是一个SSCCE。这适用于，失败，只有链中的第一个证书可以通过访问。打开保存的文件时，可以同时显示两个证书。"JKS""PKCS12"getCertificateChain(String)openssl pkcs12

    public void testKeyStore() {
    try {
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        keyPairGenerator.initialize(1024);
        KeyPair keyPair = keyPairGenerator.generateKeyPair();
        PublicKey publicKey = keyPair.getPublic();
        PrivateKey privateKey = keyPair.getPrivate();
        Certificate[] outChain = { createCertificate("CN=CA", publicKey, privateKey), createCertificate("CN=Client", publicKey, privateKey) };

        KeyStore outStore = KeyStore.getInstance("PKCS12");
        outStore.load(null, "secret".toCharArray());
        outStore.setKeyEntry("mykey", privateKey, "secret".toCharArray(), outChain);            
        OutputStream outputStream = new FileOutputStream("c:/outstore.pkcs12");
        outStore.store(outputStream, "secret".toCharArray());
        outputStream.flush();
        outputStream.close();

        KeyStore inStore = KeyStore.getInstance("PKCS12");      
        inStore.load(new FileInputStream("c:/outstore.pkcs12"), "secret".toCharArray());
        Key key = outStore.getKey("myKey", "secret".toCharArray());
        assertEquals(privateKey, key);

        Certificate[] inChain = outStore.getCertificateChain("mykey");
        assertNotNull(inChain);
        assertEquals(outChain.length, inChain.length);
    } catch (Exception e) {
        e.printStackTrace();
        fail(e.getMessage());
    }
}

private static X509Certificate createCertificate(String dn, PublicKey publicKey, PrivateKey privateKey) throws Exception {
    X509V3CertificateGenerator certGenerator = new X509V3CertificateGenerator();
    certGenerator.setSerialNumber(new BigInteger("1"));
    certGenerator.setIssuerDN(new X509Name(dn));
    certGenerator.setSubjectDN(new X509Name(dn));
    certGenerator.setNotBefore(Calendar.getInstance().getTime());
    certGenerator.setNotAfter(Calendar.getInstance().getTime());
    certGenerator.setPublicKey(publicKey);
    certGenerator.setSignatureAlgorithm("SHA1withRSA");
    X509Certificate certificate = (X509Certificate)certGenerator.generate(privateKey, "BC");
    return certificate;
}

答案 1

您的代码有 2 个错误：

第一：您没有为证书设置颁发者（客户端证书应由 CA 颁发才能使链有效）。

第二：创建证书链时使用错误的顺序（应为客户端证书，CA 最后）

这里是重制的SSCCE，它可以正常工作而不会出错。

@Test
public void testKeyStore() throws Exception{
        try {
        String storeName =  "/home/grigory/outstore.pkcs12";
        KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
        keyPairGenerator.initialize(1024);
        KeyPair keyPair = keyPairGenerator.generateKeyPair();
        PublicKey publicKey = keyPair.getPublic();
        PrivateKey privateKey = keyPair.getPrivate();
        Certificate trustCert =  createCertificate("CN=CA", "CN=CA", publicKey, privateKey);
        Certificate[] outChain = { createCertificate("CN=Client", "CN=CA", publicKey, privateKey), trustCert };

        KeyStore outStore = KeyStore.getInstance("PKCS12");
        outStore.load(null, "secret".toCharArray());
        outStore.setKeyEntry("mykey", privateKey, "secret".toCharArray(), outChain);
        OutputStream outputStream = new FileOutputStream(storeName);
        outStore.store(outputStream, "secret".toCharArray());
        outputStream.flush();
        outputStream.close();

        KeyStore inStore = KeyStore.getInstance("PKCS12");
        inStore.load(new FileInputStream(storeName), "secret".toCharArray());
        Key key = outStore.getKey("myKey", "secret".toCharArray());
        Assert.assertEquals(privateKey, key);

        Certificate[] inChain = outStore.getCertificateChain("mykey");
        Assert.assertNotNull(inChain);
        Assert.assertEquals(outChain.length, inChain.length);
    } catch (Exception e) {
        e.printStackTrace();
        throw new AssertionError(e.getMessage());
    }
   }
    private static X509Certificate createCertificate(String dn, String issuer, PublicKey publicKey, PrivateKey privateKey) throws Exception {
        X509V3CertificateGenerator certGenerator = new X509V3CertificateGenerator();
        certGenerator.setSerialNumber(BigInteger.valueOf(Math.abs(new Random().nextLong())));
        certGenerator.setSubjectDN(new X509Name(dn));
        certGenerator.setIssuerDN(new X509Name(issuer)); // Set issuer!
        certGenerator.setNotBefore(Calendar.getInstance().getTime());
        certGenerator.setNotAfter(Calendar.getInstance().getTime());
        certGenerator.setPublicKey(publicKey);
        certGenerator.setSignatureAlgorithm("SHA1withRSA");
        X509Certificate certificate = (X509Certificate)certGenerator.generate(privateKey, "BC");
        return certificate;
    }

答案 2

根据您使用的 JDK，有不同的方法来打包您的应用程序。当一些人使用Linux和OpenJDK，而其他人在Windows上使用SunJDK（Oracle）进行开发时，它发生在我们身上。

最新的有一些额外的配置要做，以便能够使用最强的算法。如果您的问题与 JCE 政策有关，本文可以为您提供帮助。