package org.bouncycastle.crypto.prng;

/* loaded from: classes6.dex */
public class EntropyUtil {
    public static byte[] generateSeed(EntropySource entropySource, int i) {
        byte[] bArr = new byte[i];
        if ((i << 3) <= entropySource.entropySize()) {
            System.arraycopy(entropySource.getEntropy(), 0, bArr, 0, i);
        } else {
            int entropySize = entropySource.entropySize() / 8;
            for (int i2 = 0; i2 < i; i2 += entropySize) {
                byte[] entropy = entropySource.getEntropy();
                int i3 = i - i2;
                if (entropy.length <= i3) {
                    System.arraycopy(entropy, 0, bArr, i2, entropy.length);
                } else {
                    System.arraycopy(entropy, 0, bArr, i2, i3);
                }
            }
        }
        return bArr;
    }
}