Question

使用BouncyCastle编写代码以生成数字证书。

这是导致问题的代码的基本部分。

public X509Certificate generateCertWithKeypair(KeyPair caPair)
            throws InvalidKeyException, SecurityException, SignatureException {
        X509V3CertificateGenerator v3CertGen = new X509V3CertificateGenerator();
        v3CertGen
                .setSerialNumber(BigInteger.valueOf(System.currentTimeMillis()));
        v3CertGen
                .setIssuerDN(new X509Principal("CN=cn, O=o, L=L, ST=il, C= c"));
        v3CertGen.setNotBefore(new Date(System.currentTimeMillis() - 1000L * 60
                * 60 * 24));
        v3CertGen.setNotAfter(new Date(System.currentTimeMillis()
                + (1000L * 60 * 60 * 24 * 365 * 10)));
        v3CertGen
                .setSubjectDN(new X509Principal("CN=cn, O=o, L=L, ST=il, C= c"));
        v3CertGen.setPublicKey(caPair.getPublic());
        v3CertGen.setSignatureAlgorithm("SHA1WithRSAEncryption");
        X509Certificate generateX509Certificate = v3CertGen
                .generateX509Certificate(caPair.getPrivate());//**here**
        return generateX509Certificate;
    }

面临例外

Exception in "main" java.lang.SecurityException: BC provider not installed!
    at X509V3CertificateGenerator.generateX509Certificate(Unknown Source)
    at chapter4.Dupe.generateCertWithKeypair(Dupe.java:74)
    at chapter4.Dupe.main(Dupe.java:32)

在搜索I found时，最新的jar解决了这个问题，但没有运气。

我错过了什么吗？

See Full Code Here.

Answer 1

你应该在JRE中“注册”BC。您可以通过两种方式完成此操作：将bcprov.jar放入$ JRE / lib / ext文件夹并添加$JRE/lib/security/java.security行

security.provider.N = org.bouncycastle.jce.provider.BouncyCastleProvider

或将bcprov.jar放在classpath中，不要修改java.security，而是在某处添加代码

static { Security.addProvider(new BouncyCastleProvider());  }

http://www.bouncycastle.org/wiki/display/JA1/Provider+Installation

Answer 2

我遇到了类似的问题，添加到了公认的答案中，这是为我工作的解决方案。

解决方案1：更新JRE / lib / security / java.security

security.provider.1=org.bouncycastle.jce.provider.BouncyCastleProvider
security.provider.2=org.bouncycastle.jsse.provider.BouncyCastleJsseProvider
security.provider.3=sun.security.provider.Sun
security.provider.4=sun.security.rsa.SunRsaSign
security.provider.5=com.sun.net.ssl.internal.ssl.Provider
security.provider.6=com.sun.crypto.provider.SunJCE
security.provider.7=sun.security.jgss.SunProvider
security.provider.8=com.sun.security.sasl.Provider

BC库必须位于顶部（1＆2）

解决方案2：将其添加到项目中

static {
 if (Security.getProvider(BouncyCastleProvider.PROVIDER_NAME) == null) {
                
       Security.insertProviderAt(new BouncyCastleProvider(), 1);
  }

 if (Security.getProvider(BouncyCastleJsseProvider.PROVIDER_NAME) == null) {
                Security.insertProviderAt(new BouncyCastleJsseProvider(), 2);
 }
}

SecurityException：未安装BC提供程序

2 个答案: