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package org.bouncycastle.crypto.prng.test;
import java.security.SecureRandom;
import org.bouncycastle.crypto.engines.AESEngine;
import org.bouncycastle.crypto.engines.DESedeEngine;
import org.bouncycastle.crypto.params.KeyParameter;
import org.bouncycastle.crypto.prng.X931SecureRandomBuilder;
import org.bouncycastle.util.Arrays;
import org.bouncycastle.util.Strings;
import org.bouncycastle.util.encoders.Hex;
import org.bouncycastle.util.test.SimpleTest;
/**
* HMAC SP800-90 DRBG
*/
public class X931Test
extends SimpleTest
{
public String getName()
{
return "X931";
}
public static void main(String[] args)
{
runTest(new X931Test());
}
private X931TestVector[] createTestVectorData()
{
return new X931TestVector[]
{
new X931TestVector(
new AESEngine(),
new AES128EntropyProvider(),
"f7d36762b9915f1ed585eb8e91700eb2",
"259e67249288597a4d61e7c0e690afae",
false,
new String[] {
"15f013af5a8e9df9a8e37500edaeac43",
"a9d74bb1c90a222adc398546d64879cf",
"0379e404042d58180764fb9e6c5d94bb",
"3c74603e036d28c79947ffb56fee4e51",
"e872101a4df81ebbe1e632fc87195d52",
"26a6b3d33b8e7e68b75d9630ec036314" }),
new X931TestVector(
new DESedeEngine(),
new TDESEntropyProvider(),
"ef16ec643e5db5892cbc6eabba310b3410e6f8759e3e382c",
"55df103deaf68dc4",
false,
new String[] {
"9c960bb9662ce6de",
"d9d0e527fd0931da",
"3e2db9994e9e6995",
"0e3868aef8218cf7",
"7b0b0ca137f8fd81",
"f657df270ad12265" })
};
}
public void performTest()
throws Exception
{
X931TestVector[] vectors = createTestVectorData();
for (int i = 0; i != vectors.length; i++)
{
X931TestVector tv = vectors[i];
X931SecureRandomBuilder bld = new X931SecureRandomBuilder(tv.getEntropyProvider());
bld.setDateTimeVector(Hex.decode(tv.getDateTimeVector()));
SecureRandom rand = bld.build(tv.getEngine(), new KeyParameter(Hex.decode(tv.getKey())), tv.isPredictionResistant());
for (int j = 0; j != tv.getExpected().length - 1; j++)
{
byte[] expected = Hex.decode(tv.getExpected()[j]);
byte[] res = new byte[expected.length];
rand.nextBytes(res);
if (!Arrays.areEqual(expected, res))
{
fail("expected output wrong [" + j + "] got : " + Strings.fromByteArray(Hex.encode(res)));
}
}
byte[] expected = Hex.decode(tv.getExpected()[tv.getExpected().length - 1]);
byte[] res = new byte[expected.length];
for (int j = tv.getExpected().length - 1; j != 10000; j++)
{
rand.nextBytes(res);
}
if (!Arrays.areEqual(expected, res))
{
fail("expected output wrong [" + 10000 + "] got : " + Strings.fromByteArray(Hex.encode(res)));
}
}
}
private class AES128EntropyProvider
extends TestEntropySourceProvider
{
AES128EntropyProvider()
{
super(Hex.decode(
"35cc0ea481fc8a4f5f05c7d4667233b2"), true);
}
}
private class TDESEntropyProvider
extends TestEntropySourceProvider
{
TDESEntropyProvider()
{
super(Hex.decode(
"96d872b9122c5e74"), true);
}
}
}
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