package org.bouncycastle.jce.provider.test;
import org.bouncycastle.asn1.nist.NISTObjectIdentifiers;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.util.encoders.Hex;
import javax.crypto.Cipher;
import javax.crypto.CipherInputStream;
import javax.crypto.CipherOutputStream;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.IOException;
import java.security.Key;
import java.security.Security;
/**
* basic test class for the AES cipher vectors from FIPS-197
*/
public class AESTest
extends BaseBlockCipherTest
{
static String[] cipherTests =
{
"128",
"000102030405060708090a0b0c0d0e0f",
"00112233445566778899aabbccddeeff",
"69c4e0d86a7b0430d8cdb78070b4c55a",
"192",
"000102030405060708090a0b0c0d0e0f1011121314151617",
"00112233445566778899aabbccddeeff",
"dda97ca4864cdfe06eaf70a0ec0d7191",
"256",
"000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f",
"00112233445566778899aabbccddeeff",
"8ea2b7ca516745bfeafc49904b496089",
};
public AESTest()
{
super("AES");
}
private void test(
int strength,
byte[] keyBytes,
byte[] input,
byte[] output)
throws Exception
{
Key key;
Cipher in, out;
CipherInputStream cIn;
CipherOutputStream cOut;
ByteArrayInputStream bIn;
ByteArrayOutputStream bOut;
key = new SecretKeySpec(keyBytes, "AES");
in = Cipher.getInstance("AES/ECB/NoPadding", "BC");
out = Cipher.getInstance("AES/ECB/NoPadding", "BC");
try
{
out.init(Cipher.ENCRYPT_MODE, key);
}
catch (Exception e)
{
fail("AES failed initialisation - " + e.toString(), e);
}
try
{
in.init(Cipher.DECRYPT_MODE, key);
}
catch (Exception e)
{
fail("AES failed initialisation - " + e.toString(), e);
}
//
// encryption pass
//
bOut = new ByteArrayOutputStream();
cOut = new CipherOutputStream(bOut, out);
try
{
for (int i = 0; i != input.length / 2; i++)
{
cOut.write(input[i]);
}
cOut.write(input, input.length / 2, input.length - input.length / 2);
cOut.close();
}
catch (IOException e)
{
fail("AES failed encryption - " + e.toString(), e);
}
byte[] bytes;
bytes = bOut.toByteArray();
if (!areEqual(bytes, output))
{
fail("AES failed encryption - expected " + new String(Hex.encode(output)) + " got " + new String(Hex.encode(bytes)));
}
//
// decryption pass
//
bIn = new ByteArrayInputStream(bytes);
cIn = new CipherInputStream(bIn, in);
try
{
DataInputStream dIn = new DataInputStream(cIn);
bytes = new byte[input.length];
for (int i = 0; i != input.length / 2; i++)
{
bytes[i] = (byte)dIn.read();
}
dIn.readFully(bytes, input.length / 2, bytes.length - input.length / 2);
}
catch (Exception e)
{
fail("AES failed encryption - " + e.toString(), e);
}
if (!areEqual(bytes, input))
{
fail("AES failed decryption - expected " + new String(Hex.encode(input)) + " got " + new String(Hex.encode(bytes)));
}
}
private void eaxTest()
throws Exception
{
byte[] K = Hex.decode("233952DEE4D5ED5F9B9C6D6FF80FF478");
byte[] N = Hex.decode("62EC67F9C3A4A407FCB2A8C49031A8B3");
byte[] P = Hex.decode("68656c6c6f20776f726c642121");
byte[] C = Hex.decode("2f9f76cb7659c70e4be11670a3e193ae1bc6b5762a");
Key key;
Cipher in, out;
key = new SecretKeySpec(K, "AES");
in = Cipher.getInstance("AES/EAX/NoPadding", "BC");
out = Cipher.getInstance("AES/EAX/NoPadding", "BC");
in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(N));
byte[] enc = in.doFinal(P);
if (!areEqual(enc, C))
{
fail("ciphertext doesn't match in EAX");
}
out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(N));
byte[] dec = out.doFinal(C);
if (!areEqual(dec, P))
{
fail("plaintext doesn't match in EAX");
}
try
{
in = Cipher.getInstance("AES/EAX/PKCS5Padding", "BC");
fail("bad padding missed in EAX");
}
catch (NoSuchPaddingException e)
{
// expected
}
}
private void ccmTest()
throws Exception
{
byte[] K = Hex.decode("404142434445464748494a4b4c4d4e4f");
byte[] N = Hex.decode("10111213141516");
byte[] P = Hex.decode("68656c6c6f20776f726c642121");
byte[] C = Hex.decode("39264f148b54c456035de0a531c8344f46db12b388");
Key key;
Cipher in, out;
key = new SecretKeySpec(K, "AES");
in = Cipher.getInstance("AES/CCM/NoPadding", "BC");
out = Cipher.getInstance("AES/CCM/NoPadding", "BC");
in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(N));
byte[] enc = in.doFinal(P);
if (!areEqual(enc, C))
{
fail("ciphertext doesn't match in CCM");
}
out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(N));
byte[] dec = out.doFinal(C);
if (!areEqual(dec, P))
{
fail("plaintext doesn't match in CCM");
}
try
{
in = Cipher.getInstance("AES/CCM/PKCS5Padding", "BC");
fail("bad padding missed in CCM");
}
catch (NoSuchPaddingException e)
{
// expected
}
}
private void gcmTest()
throws Exception
{
// Test Case 15 from McGrew/Viega
byte[] K = Hex.decode(
"feffe9928665731c6d6a8f9467308308"
+ "feffe9928665731c6d6a8f9467308308");
byte[] P = Hex.decode(
"d9313225f88406e5a55909c5aff5269a"
+ "86a7a9531534f7da2e4c303d8a318a72"
+ "1c3c0c95956809532fcf0e2449a6b525"
+ "b16aedf5aa0de657ba637b391aafd255");
byte[] N = Hex.decode("cafebabefacedbaddecaf888");
String T = "b094dac5d93471bdec1a502270e3cc6c";
byte[] C = Hex.decode(
"522dc1f099567d07f47f37a32a84427d"
+ "643a8cdcbfe5c0c97598a2bd2555d1aa"
+ "8cb08e48590dbb3da7b08b1056828838"
+ "c5f61e6393ba7a0abcc9f662898015ad"
+ T);
Key key;
Cipher in, out;
key = new SecretKeySpec(K, "AES");
in = Cipher.getInstance("AES/GCM/NoPadding", "BC");
out = Cipher.getInstance("AES/GCM/NoPadding", "BC");
in.init(Cipher.ENCRYPT_MODE, key, new IvParameterSpec(N));
byte[] enc = in.doFinal(P);
if (!areEqual(enc, C))
{
fail("ciphertext doesn't match in GCM");
}
out.init(Cipher.DECRYPT_MODE, key, new IvParameterSpec(N));
byte[] dec = out.doFinal(C);
if (!areEqual(dec, P))
{
fail("plaintext doesn't match in GCM");
}
try
{
in = Cipher.getInstance("AES/GCM/PKCS5Padding", "BC");
fail("bad padding missed in GCM");
}
catch (NoSuchPaddingException e)
{
// expected
}
}
public void performTest()
throws Exception
{
for (int i = 0; i != cipherTests.length; i += 4)
{
test(Integer.parseInt(cipherTests[i]),
Hex.decode(cipherTests[i + 1]),
Hex.decode(cipherTests[i + 2]),
Hex.decode(cipherTests[i + 3]));
}
byte[] kek1 = Hex.decode("000102030405060708090a0b0c0d0e0f");
byte[] in1 = Hex.decode("00112233445566778899aabbccddeeff");
byte[] out1 = Hex.decode("1fa68b0a8112b447aef34bd8fb5a7b829d3e862371d2cfe5");
wrapTest(1, "AESWrap", kek1, in1, out1);
String[] oids = {
NISTObjectIdentifiers.id_aes128_ECB.getId(),
NISTObjectIdentifiers.id_aes128_CBC.getId(),
NISTObjectIdentifiers.id_aes128_OFB.getId(),
NISTObjectIdentifiers.id_aes128_CFB.getId(),
NISTObjectIdentifiers.id_aes192_ECB.getId(),
NISTObjectIdentifiers.id_aes192_CBC.getId(),
NISTObjectIdentifiers.id_aes192_OFB.getId(),
NISTObjectIdentifiers.id_aes192_CFB.getId(),
NISTObjectIdentifiers.id_aes256_ECB.getId(),
NISTObjectIdentifiers.id_aes256_CBC.getId(),
NISTObjectIdentifiers.id_aes256_OFB.getId(),
NISTObjectIdentifiers.id_aes256_CFB.getId()
};
String[] names = {
"AES/ECB/PKCS7Padding",
"AES/CBC/PKCS7Padding",
"AES/OFB/NoPadding",
"AES/CFB/NoPadding",
"AES/ECB/PKCS7Padding",
"AES/CBC/PKCS7Padding",
"AES/OFB/NoPadding",
"AES/CFB/NoPadding",
"AES/ECB/PKCS7Padding",
"AES/CBC/PKCS7Padding",
"AES/OFB/NoPadding",
"AES/CFB/NoPadding"
};
oidTest(oids, names, 4);
String[] wrapOids = {
NISTObjectIdentifiers.id_aes128_wrap.getId(),
NISTObjectIdentifiers.id_aes192_wrap.getId(),
NISTObjectIdentifiers.id_aes256_wrap.getId()
};
wrapOidTest(wrapOids, "AESWrap");
eaxTest();
ccmTest();
gcmTest();
}
public static void main(
String[] args)
{
Security.addProvider(new BouncyCastleProvider());
runTest(new AESTest());
}
}