Example usage for org.bouncycastle.crypto.prng EntropySourceProvider get

Introduction

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

Prototype

EntropySource get(final int bitsRequired);

Source Link

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.  ja va  2 s.  c  o  m*/
    return seed;
}

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