Package com.dropbox.core.android

Class FixedSecureRandom

java.lang.Object

java.util.Random

java.security.SecureRandom

com.dropbox.core.android.FixedSecureRandom

All Implemented Interfaces:

java.io.Serializable

public final class FixedSecureRandom
extends java.security.SecureRandom

Older versions of Android have a SecureRandom that isn't actually secure. This class implements a workaround. Call the static get() method to get a secure SecureRandom instance.

This workaround code was recommended by Google in a euphemistically-titled blog post. Our code is slightly different because we're a library so we don't want to change global JVM settings.

See Also:

Serialized Form

Nested Class Summary

Nested Classes

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

Method Summary

Modifier and Type	Method	Description
static java.security.SecureRandom	get()

Methods inherited from class java.security.SecureRandom

generateSeed, getAlgorithm, getInstance, getInstance, getInstance, getInstance, getInstance, getInstance, getInstanceStrong, getParameters, getProvider, getSeed, next, nextBytes, nextBytes, reseed, reseed, setSeed, setSeed, toString

Methods inherited from class java.util.Random

doubles, doubles, doubles, doubles, ints, ints, ints, ints, longs, longs, longs, longs, nextBoolean, nextDouble, nextFloat, nextGaussian, nextInt, nextInt, nextLong

Methods inherited from class java.lang.Object

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

Method Detail

get

public static java.security.SecureRandom get()