javax.security.cert.X509Certificate与java.security.cert.X509Certificate之间不兼容

Question

我想验证客户端针对CRL提供的X509证书,看看它是否已被撤销.我已成功实现了一个java.security.cert.X509CRL,但我在检索会话证书时遇到问题:

try {
    SSLSocket s = (SSLSocket) serverSocket.accept();
    s.setSoTimeout(TIMEOUT_RW * 1000);
    s.startHandshake();
    SSLSession session = s.getSession();
    X509Certificate[] cert = session.getPeerCertificateChain();
    if (crl.isRevoked(cert[0])) {
        System.err.println("Attempted to stablish connection using revoked certificate");
    } else {
        ...
    }
} catch (Exception ex) {
    System.err.println("Something went wrong");
}

SSLSession属于javax.net.ssl 包,其方法getPeerCertificateChain()返回一个javax.security.cert.X509Certificate[],无法转换为java.security.cert.X509Certificate[]我需要提供的包java.security.cert.X509CRL.怎么做到呢？

Answer 1

javax.security.cert.X509Certificate已弃用.获得java.security.cert.Certificate[]通过session.getPeerCertificates();,然后把它传递给你的crl.isRevoked实现.

也可以看看:

• http://docs.oracle.com/javase/7/docs/api/javax/net/ssl/SSLSession.html#getPeerCertificateChain()

• http://docs.oracle.com/javase/7/docs/api/javax/net/ssl/SSLSession.html#getPeerCertificates()

存在包javax.security.cert中的类,以便与早期版本的Java安全套接字扩展(JSSE)兼容.相反,新应用程序应使用位于java.security.cert中的标准Java SE证书类.

你可以转换java.security.cert.Certificate为java.security.cert.X509Certificate(来源):

    CertificateFactory cf = CertificateFactory.getInstance("X.509");
    ByteArrayInputStream bais = new ByteArrayInputStream(certificate.getEncoded());
    X509Certificate x509 =  (X509Certificate) cf.generateCertificate(bais);