sec-prng

sec-prng : Secure pseudo-random number generation

TL;DR

JavaDoc for this project can be found here.

What is this?

Good cryptography needs securely generated random numbers. Java does not provide a random number generator that meets the needs of modern strong cryptography. This library fixes that.

How do I use it?

Read the installation instructions. Use it.

Installation Instructions

To use this library in an application, you should do one of the following:

As a normal security Provider

SecureRandom rand = new SecureRandom("Nist-SHA256",new prng.SecureRandomProvider());

As a default security Provider

prng.SecureRandomProvider.install(true);

Installs the secure random provider as the default secure random provider, so calls to new SecureRandom() will use on of its algorithms.

As an application override

java -javaagent:prng-1.0.0.jar ...rest of command line

Install the secure random provider and the default secure random number generator implementation prior to invoking the application’s main method.

As a platform extension

The provider may be made a standard provider for all applications using a given Java Runtime Environment.

  1. Copy prng-1.0.0.jar to [java home]/jre/lib/ext
  2. Open the file [java home]/jre/lib/security/java.security in a text editor.
  3. Add a line such as: security.provider.1=prng.SecureRandomProvider
  4. Adjust all the other security.provider.N entries so each one has a unique name with the order you desire
  5. Save the file
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