Examples with DualECSP800DRBG org.bouncycastle.crypto.prng.drbg.DualECSP800DRBG used on opensource projects

Example 1 with DualECSP800DRBG

use of org.bouncycastle.crypto.prng.drbg.DualECSP800DRBG in project ddf by codice.

the class RandomNumberGenerator method createSeed.

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);
    return seed;
}