java - 安全异常 : BC provider not installed

Question

使用BouncyCaSTLe编写代码生成数字证书。

这是导致问题的代码的重要部分。

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;
    }

面临异常

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)

在搜索中我found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

您应该在 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 文件夹并添加到 $JRE/lib/security/java.security 行

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

或者把bcprov.jar放在classpath下，java.security不修改，在某处添加代码

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

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