Example usage for org.bouncycastle.crypto.prng.drbg DualECSP800DRBG DualECSP800DRBG

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.prng.drbg DualECSP800DRBG DualECSP800DRBG.

Prototype

public DualECSP800DRBG(Digest digest, int securityStrength, EntropySource entropySource,
        byte[] personalizationString, byte[] nonce) 

Source Link

Document

Construct a SP800-90A Dual EC DRBG.

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);//ww w  . jav a 2s  .com
    return seed;
}

---