Question

我是加密/证书的新手，并尝试使用Bouncy Castle库生成证书。看看他们的一些示例代码，这是我到目前为止所做的：

package crypto;

import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x509.BasicConstraints;
import org.bouncycastle.asn1.x509.Extension;
import org.bouncycastle.asn1.x509.KeyUsage;
import org.bouncycastle.cert.X509v1CertificateBuilder;
import org.bouncycastle.cert.X509v3CertificateBuilder;
import org.bouncycastle.cert.jcajce.JcaX509CertificateConverter;
import org.bouncycastle.cert.jcajce.JcaX509ExtensionUtils;
import org.bouncycastle.cert.jcajce.JcaX509v1CertificateBuilder;
import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.operator.ContentSigner;
import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;

import javax.security.auth.x500.X500Principal;
import java.io.IOException;
import java.io.InputStream;
import java.math.BigInteger;
import java.security.*;
import java.security.cert.X509Certificate;
import java.util.Date;
import java.util.Properties;


public class App {

    private static final int VALIDITY_PERIOD = 7 * 24 * 60 * 60 * 1000; // one week

    public static void main (String[] args) throws Exception {
        Security.addProvider(new BouncyCastleProvider());
        KeyPair keyPair = generateRSAKeyPair();
        X509Certificate rootCert = buildRootCert(keyPair);
        buildEndEntityCert(keyPair.getPublic(), keyPair.getPrivate(), rootCert);
    }

    /**
     * Create a random 2048 bit RSA key pair
     */
    public static KeyPair generateRSAKeyPair() throws Exception {
        KeyPairGenerator kpGen = KeyPairGenerator.getInstance("RSA", "BC");
        kpGen.initialize(2048, new SecureRandom());

        return kpGen.generateKeyPair();
    }

    /**
     * Build a sample V1 certificate to use as a CA root certificate
     */
    public static X509Certificate buildRootCert(KeyPair keyPair)
            throws Exception
    {
        X509v1CertificateBuilder certBldr = new JcaX509v1CertificateBuilder(
                new X500Name("CN=Test Root Certificate"),
                BigInteger.valueOf(1),
                new Date(System.currentTimeMillis()),
                new Date(System.currentTimeMillis() + VALIDITY_PERIOD),
                new X500Name("CN=Test Root Certificate"),
                keyPair.getPublic());

        ContentSigner signer = new JcaContentSignerBuilder("SHA1WithRSA").setProvider("BC").build(keyPair.getPrivate());

        return new JcaX509CertificateConverter().setProvider("BC").getCertificate(certBldr.build(signer));
    }

    /**
     * Build a sample V3 certificate to use as an end entity certificate
     */
    public static X509Certificate buildEndEntityCert(PublicKey entityKey, PrivateKey caKey, X509Certificate caCert)
            throws Exception
    {

        X509v3CertificateBuilder certBldr = new JcaX509v3CertificateBuilder(
                caCert.getSubjectX500Principal(),
                BigInteger.valueOf(1),
                new Date(System.currentTimeMillis()),
                new Date(System.currentTimeMillis() + VALIDITY_PERIOD),
                new X500Principal("CN=Test End Entity Certificate"),
                entityKey);

        JcaX509ExtensionUtils extUtils = new JcaX509ExtensionUtils();

        certBldr.addExtension(Extension.authorityKeyIdentifier, false, extUtils.createAuthorityKeyIdentifier(caCert))
                .addExtension(Extension.subjectKeyIdentifier, false, extUtils.createSubjectKeyIdentifier(entityKey))
                .addExtension(Extension.basicConstraints, true, new BasicConstraints(false))
                .addExtension(Extension.keyUsage, true, new KeyUsage(KeyUsage.digitalSignature | KeyUsage.keyEncipherment));

        ContentSigner signer = new JcaContentSignerBuilder("SHA1withRSA").setProvider("BC").build(caKey);

        return new JcaX509CertificateConverter().setProvider("BC").getCertificate(certBldr.build(signer));
    }
}

我的pom有各种Bouncy Castle libs和最新的itext：

<dependencies>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk15on</artifactId>
            <version>1.56</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcpkix-jdk15on</artifactId>
            <version>1.47</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcmail-jdk15</artifactId>
            <version>1.46</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-ext-jdk15on</artifactId>
            <version>1.55</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcpg-jdk15on</artifactId>
            <version>1.56</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-debug-jdk15on</artifactId>
            <version>1.55</version>
        </dependency>
        <dependency>
            <groupId>commons-configuration</groupId>
            <artifactId>commons-configuration</artifactId>
            <version>1.7</version>
        </dependency>
        <dependency>
            <groupId>com.itextpdf</groupId>
            <artifactId>itextpdf</artifactId>
            <version>5.5.11</version>
        </dependency>

但是我收到了这个错误：

Exception in thread "main" java.lang.NoSuchMethodError: org.bouncycastle.asn1.ASN1Integer.<init>(I)V
    at org.bouncycastle.operator.DefaultSignatureAlgorithmIdentifierFinder.createPSSParams(Unknown Source)
    at org.bouncycastle.operator.DefaultSignatureAlgorithmIdentifierFinder.<clinit>(Unknown Source)
    at org.bouncycastle.operator.jcajce.JcaContentSignerBuilder.<init>(Unknown Source)
    at crypto.App.buildRootCert(App.java:62)
    at crypto.App.main(App.java:34)

Process finished with exit code 1

有谁知道为什么？

Answer 1

这是因为使用了不同的版本（1.56和1.46）。版本1.47之后，many parts of the API have changed。

我可以运行您的代码，将我的pom.xml更改为仅使用版本1.56：

<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcprov-jdk15on</artifactId>
    <version>1.56</version>
</dependency>
<dependency>
    <groupId>org.bouncycastle</groupId>
    <artifactId>bcmail-jdk15on</artifactId>
    <version>1.56</version>
</dependency>

这是在你的问题中运行代码的最小的lib集。当然，如果您的应用程序需要使用其他库（ bcpg ， bcprov-ext 等），您可以相应地包含它们（但我建议您选择版本＆gt; = 1.55，避免这些混合版本问题）

注意： bcmail 取决于 bcpkix 和 bcprov ，所以实际上只有 bcmail pom.xml

需要>

Bouncy Castle，NoSuchMethodError（org.bouncycastle.asn1.ASN1Integer）

1 个答案: