在Objective-C中安全地生成随机数 [英] Generating Random Numbers Securely in Objective-C

问题描述

在哪里可以找到一个行业接受的安全伪随机数生成器的Objective-C？有没有一个内置的OS X SDK？

Where can I find an industry-accepted secure pseudo-random number generator for Objective-C? Is there one built in to the OS X SDK?

我的问题基本上与 this one ，但我正在寻找安全 PRNG。

My question is basically the same as this one, except that I'm looking for a secure PRNG.

编辑：

感谢大家的帮助。下面是一个简单的一行程序来实现/ dev / random方法：

Thanks everyone for the help. Here's a simple one-liner to implement the /dev/random method:

-(NSData *)getRandomBytes:(NSUInteger)length {
    return [[NSFileHandle fileHandleForReadingAtPath:@"/dev/random"] readDataOfLength:length];
}

推荐答案

Security.framework有一个设施为此，请调用 SecRandomCopyBytes（）。虽然它基本上只是复制从 / dev / random 。

Security.framework has a facility for doing this, called SecRandomCopyBytes(). Although it's really basically just copying from /dev/random.

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