如何在 Java 7 中启用 TLS 1.2 [英] How to enable TLS 1.2 in Java 7

问题描述

我正在尝试在使用 JBoss 6.4 和 Java 1.7 的网络应用程序中启用 TLS 1.2.我的应用程序环境中有 -Dhttp.protocols = TLSv1.2 但它似乎对我不起作用.

I am trying to enable TLS 1.2 in my web app which uses JBoss 6.4 and Java 1.7. I have -Dhttp.protocols = TLSv1.2 in my application environment but it doesn't seem to work for me.

我可以做些什么来启用 TLS 1.2?

Is there anything I could do to enable TLS 1.2?

我写了一个简单的程序

context = SSLContext.getInstance("TLSv1.2");
context.init(null,null,null);
SSLContext.setDefault(context); 
SSLSocketFactory factory = (SSLSocketFactory)context.getSocketFactory();
SSLSocket socket = (SSLSocket)factory.createSocket();
protocols = socket.getEnabledProtocols();

在应用程序中运行此程序后，TLS 1.2 将启用.我不想运行这个程序，但我想在应用程序启动时直接启用它.有什么办法吗?

After running this program within the app the TLS 1.2 gets enabled. I do not want to run this program but I want to directly enable it during app startup. Is there any way to do it?

推荐答案

有很多建议，但我发现其中最常见的有两个.

There are many suggestions but I found two of them most common.

我第一次尝试 export JAVA_OPTS="-Dhttps.protocols=SSLv3,TLSv1,TLSv1.1,TLSv1.2" 在程序启动之前在命令行上，但它对我不起作用.

I first tried export JAVA_OPTS="-Dhttps.protocols=SSLv3,TLSv1,TLSv1.1,TLSv1.2" on command line before startup of program but it didn't work for me.

然后我在启动类构造函数中添加了以下代码，它对我有用.

Then I added the following code in the startup class constructor and it worked for me.

try {
        SSLContext ctx = SSLContext.getInstance("TLSv1.2");
        ctx.init(null, null, null);
        SSLContext.setDefault(ctx);
} catch (Exception e) {
        System.out.println(e.getMessage());
}

坦率地说，我不知道为什么 ctx.init(null, null, null); 但所有 (SSL/TLS) 对我来说都很好.

Frankly, I don't know in detail why ctx.init(null, null, null); but all (SSL/TLS) is working fine for me.

还有一个选项:System.setProperty("https.protocols", "SSLv3,TLSv1,TLSv1.1,TLSv1.2");.它也将进入代码，但我没有尝试过.

There is one more option: System.setProperty("https.protocols", "SSLv3,TLSv1,TLSv1.1,TLSv1.2");. It will also go in code but I've not tried it.

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