Cipher.getInstance太慢了 [英] Cipher.getInstance is too slow

问题描述

我有一行代码在我的电脑（Windows 7）上耗时不到一秒，而在Redhat服务器上耗时不到20秒。

I have the following line of code that is taking less than a second on my computer (windows 7) and about 20 seconds on a Redhat server :

Cipher cipher = Cipher.getInstance(TRANSFORMATION);

其中TRANSFORMATION被定义为：

where TRANSFORMATION is defind as :

private static final String TRANSFORMATION = "Blowfish/ECB/PKCS5Padding";

这种行为的来源可能是什么？

What could be the source of such behaviour ?

谢谢。

推荐答案

Bouncy Castle提供商的初始化和 - 可能 - 一个缓慢的 / dev / random 。

Initialization of the Bouncy Castle provider and - probably - a slow /dev/random.

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