com.tozny.crypto.android

Class AesCbcWithIntegrity.PrngFixes

java.lang.Object

com.tozny.crypto.android.AesCbcWithIntegrity.PrngFixes

Enclosing class:

AesCbcWithIntegrity

public static final class AesCbcWithIntegrity.PrngFixes
extends java.lang.Object

Fixes for the RNG as per http://android-developers.blogspot.com/2013/08/some-securerandom-thoughts.html This software is provided 'as-is', without any express or implied warranty. In no event will Google be held liable for any damages arising from the use of this software. Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, as long as the origin is not misrepresented. Fixes for the output of the default PRNG having low entropy. The fixes need to be applied via apply() before any use of Java Cryptography Architecture primitives. A good place to invoke them is in the application's onCreate.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AesCbcWithIntegrity.PrngFixes.LinuxPRNGSecureRandom SecureRandomSpi which passes all requests to the Linux PRNG ( /dev/urandom).

Method Summary

Modifier and Type	Method and Description
static void	apply() Applies all fixes.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

apply

public static void apply()

Applies all fixes.

Throws:

java.lang.SecurityException - if a fix is needed but could not be applied.