【问题标题】:Java SSL Exception - "Prime size must be a multiple of 64..." [duplicate]Java SSL异常-“素数大小必须是64的倍数...” [重复]
【发布时间】:2012-02-28 01:17:58
【问题描述】:

我正在尝试实现一个非常简单的 SSL 客户端来向服务器发送 HTTPS POST 请求,但我遇到了这个看似无害的异常。 JSSE 参考指南尚未使用。非常感谢。

SSLContext ctx = SSLContext.getInstance("SSL");
// Accept-all trust manager
TrustManager[] trustEverything = { new DefaultTrustManager() };       

// Keystore file in local directory
KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
ks.load(new java.io.FileInputStream("keystore"),"123456".toCharArray());

// Key manager  
KeyManager[] managers;
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
kmf.init(ks, "123456".toCharArray());
managers = kmf.getKeyManagers();

ctx.init(managers, trustEverything, new SecureRandom());
SSLSocketFactory sslFact = (SSLSocketFactory) ctx.getSocketFactory();
// Connect to internal SSL-enabled server
SSLSocket socket = (SSLSocket) sslFact.createSocket("10.131.149.36", 8443);

我一尝试握手就抛出异常:

socket.startHandshake();

我试图找到这些参数的初始化位置无济于事。请让我觉得很傻。

Caused by: java.security.InvalidAlgorithmParameterException: Prime size must be multiple of 64, and can only range from 512 to 1024 (inclusive)
at     com.sun.crypto.provider.DHKeyPairGenerator.initialize(DHKeyPairGenerator.java:120)
at java.security.KeyPairGenerator$Delegate.initialize(KeyPairGenerator.java:658)
at sun.security.ssl.DHCrypt.<init>(DHCrypt.java:117)

【问题讨论】:

标签: java ssl


【解决方案1】:

与 JCE 无关。在 Java http://httpd.apache.org/docs/current/ssl/ssl_faq.html#javadh

【讨论】:

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