what-the-bank/sources/org/bouncycastle/crypto/prng/BasicEntropySourceProvider....

48 lines
1.7 KiB
Java

package org.bouncycastle.crypto.prng;
import java.security.SecureRandom;
/* loaded from: classes6.dex */
public class BasicEntropySourceProvider implements EntropySourceProvider {
private final boolean _predictionResistant;
private final SecureRandom _sr;
@Override // org.bouncycastle.crypto.prng.EntropySourceProvider
public EntropySource get(int i) {
return new EntropySource(this, i) { // from class: org.bouncycastle.crypto.prng.BasicEntropySourceProvider.1
final BasicEntropySourceProvider this$0;
final int val$bitsRequired;
@Override // org.bouncycastle.crypto.prng.EntropySource
public boolean isPredictionResistant() {
return this.this$0._predictionResistant;
}
@Override // org.bouncycastle.crypto.prng.EntropySource
public byte[] getEntropy() {
if ((this.this$0._sr instanceof SP800SecureRandom) || (this.this$0._sr instanceof X931SecureRandom)) {
byte[] bArr = new byte[(this.val$bitsRequired + 7) / 8];
this.this$0._sr.nextBytes(bArr);
return bArr;
}
return this.this$0._sr.generateSeed((this.val$bitsRequired + 7) / 8);
}
@Override // org.bouncycastle.crypto.prng.EntropySource
public int entropySize() {
return this.val$bitsRequired;
}
{
this.this$0 = this;
this.val$bitsRequired = i;
}
};
}
public BasicEntropySourceProvider(SecureRandom secureRandom, boolean z) {
this._sr = secureRandom;
this._predictionResistant = z;
}
}