适用于 Java 7 的 Java SE 强加密？
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Java SE strong cryptography for Java 7?
提问by Borislav
The preview release of Java 7 seems to be missing JCE package for unlimited cryptography strength. Has someone stumbled upon such?
Java 7 的预览版似乎缺少用于无限加密强度的 JCE 包。有没有人偶然发现这样的？
回答by JarHead
回答by Priyank Desai
You need to install the missing JCE package.
您需要安装缺少的 JCE 包。
Locate your jre lib/security directory
$ which java /usr/bin/java # Do this recursively till you find the java installation folder $ ls -la /usr/bin/java
找到您的 jre lib/security 目录
$ which java /usr/bin/java # Do this recursively till you find the java installation folder $ ls -la /usr/bin/java
On Linux it should be by default: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/security/
在 Linux 上它应该是默认的：/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/security/
On Windows it should be by default: C:\Program Files\Java\jre7\lib\security
在 Windows 上，它应该默认为：C:\Program Files\Java\jre7\lib\security
- Download the Java Cryptography Extension (JCE)
- 下载 Java 加密扩展 (JCE)
Download for Java 6: http://www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html
下载 Java 6：http: //www.oracle.com/technetwork/java/javase/downloads/jce-6-download-429243.html
Download for Java 7: http://www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
下载 Java 7：http: //www.oracle.com/technetwork/java/javase/downloads/jce-7-download-432124.html
Download for Java 8: http://www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
Java 8 下载：http: //www.oracle.com/technetwork/java/javase/downloads/jce8-download-2133166.html
- Install the JCE
- 安装 JCE
Extract the downloaded zip and place the two .jar files: US_export_policy.jar and local_policy.jar into your jre/lib/security folder.
解压下载的 zip 并将两个 .jar 文件：US_export_policy.jar 和 local_policy.jar 放入您的 jre/lib/security 文件夹中。
Overwrite old files if any.
覆盖旧文件（如果有）。
