Example usage for org.bouncycastle.crypto.prng BasicEntropySourceProvider BasicEntropySourceProvider

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.prng BasicEntropySourceProvider BasicEntropySourceProvider.

Prototype

public BasicEntropySourceProvider(SecureRandom random, boolean isPredictionResistant) 

Source Link

Document

Create a entropy source provider based on the passed in SecureRandom.

Usage

From source file:org.codice.ddf.platform.util.RandomNumberGenerator.java

License:Open Source License

public static byte[] createSeed() {
    EntropySourceProvider esp = new BasicEntropySourceProvider(new SecureRandom(), true);
    byte[] nonce = new byte[256];
    new SecureRandom().nextBytes(nonce);

    DualECSP800DRBG bcRbg = new DualECSP800DRBG(new SHA256Digest(), 256, esp.get(256), null, nonce);
    byte[] seed = new byte[256];
    bcRbg.generate(seed, null, true);/*from w  w w. j av a2  s .  co m*/
    return seed;
}

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