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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @bug 4894159
* @summary unit test to test basic functionality of RC2 AlgorithmParameters
* implementation
* @author Sean Mullan
*/
import java.io.ByteArrayOutputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.StringReader;
import java.security.AlgorithmParameters;
import java.util.Arrays;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.RC2ParameterSpec;
import javax.crypto.spec.SecretKeySpec;
public class RC2AlgorithmParameters {
// much of code copied from test/cipher/rc2arcfour/CipherKAT.java
private final static char[] hexDigits = "0123456789abcdef".toCharArray();
public static void main(String[] args) throws Exception {
byte[] iv_1 = {
(byte)0x11,(byte)0x11,(byte)0x11,(byte)0x11,
(byte)0x11,(byte)0x11,(byte)0x11,(byte)0x11,
(byte)0x33,(byte)0x33
};
// check that RC2 is supported by our provider
AlgorithmParameters rc2Params =
AlgorithmParameters.getInstance("RC2", "SunJCE");
// check that getAlgorithm returns "RC2"
if (!rc2Params.getAlgorithm().equals("RC2")) {
throw new Exception("getAlgorithm() returned "
+ rc2Params.getAlgorithm() + " instead of RC2");
}
// test parameters with effective key size and iv
byte[] encoded = testParams(rc2Params, new RC2ParameterSpec(2, iv_1));
// test parameters with just iv
encoded = testParams(AlgorithmParameters.getInstance("RC2"),
new RC2ParameterSpec(0, iv_1));
// test vectors in RFC 2268
runTests(tests);
}
static void runTests(CipherTest[] tests) throws Exception {
for (int i = 0; i < tests.length; i++) {
CipherTest test = tests[i];
test.run();
}
System.out.println("All tests passed");
}
private static byte[] testParams(AlgorithmParameters rc2Params,
RC2ParameterSpec rc2Spec) throws Exception {
// test getParameterSpec returns object equal to input
rc2Params.init(rc2Spec);
RC2ParameterSpec rc2OtherSpec = (RC2ParameterSpec)
rc2Params.getParameterSpec(RC2ParameterSpec.class);
if (!rc2Spec.equals(rc2OtherSpec)) {
throw new Exception("AlgorithmParameterSpecs should be equal");
}
// test RC2ParameterSpec with RC2 Cipher
Cipher rc2Cipher = Cipher.getInstance("RC2/CBC/PKCS5PADDING", "SunJCE");
rc2Cipher.init(Cipher.ENCRYPT_MODE,
new SecretKeySpec("secret".getBytes("ASCII"), "RC2"), rc2Spec);
// get IV
byte[] iv = rc2Cipher.getIV();
if (!Arrays.equals(iv, rc2Spec.getIV())) {
throw new Exception("ivs should be equal");
}
// test encoding and decoding
byte[] encoded = rc2Params.getEncoded();
AlgorithmParameters params = AlgorithmParameters.getInstance("RC2");
params.init(encoded);
// test RC2 AlgorithmParameters with RC2 Cipher
rc2Cipher.init(Cipher.ENCRYPT_MODE,
new SecretKeySpec("secret".getBytes("ASCII"), "RC2"), params);
// get IV
iv = rc2Cipher.getIV();
if (!Arrays.equals(iv, rc2Spec.getIV())) {
throw new Exception("ivs should be equal");
}
return encoded;
}
private static void dumpBytes(byte[] encoded, String file)
throws Exception {
FileOutputStream fos = new FileOutputStream(file);
fos.write(encoded);
fos.close();
}
public static String toString(byte[] b) {
if (b == null) {
return "(null)";
}
StringBuffer sb = new StringBuffer(b.length * 3);
for (int i = 0; i < b.length; i++) {
int k = b[i] & 0xff;
if (i != 0) {
sb.append(':');
}
sb.append(hexDigits[k >>> 4]);
sb.append(hexDigits[k & 0xf]);
}
return sb.toString();
}
public static byte[] parse(String s) {
try {
int n = s.length();
ByteArrayOutputStream out = new ByteArrayOutputStream(n / 3);
StringReader r = new StringReader(s);
while (true) {
int b1 = nextNibble(r);
if (b1 < 0) {
break;
}
int b2 = nextNibble(r);
if (b2 < 0) {
throw new RuntimeException("Invalid string " + s);
}
int b = (b1 << 4) | b2;
out.write(b);
}
return out.toByteArray();
} catch (IOException e) {
throw new RuntimeException(e);
}
}
public static byte[] b(String s) {
return parse(s);
}
private static int nextNibble(StringReader r) throws IOException {
while (true) {
int ch = r.read();
if (ch == -1) {
return -1;
} else if ((ch >= '0') && (ch <= '9')) {
return ch - '0';
} else if ((ch >= 'a') && (ch <= 'f')) {
return ch - 'a' + 10;
} else if ((ch >= 'A') && (ch <= 'F')) {
return ch - 'A' + 10;
}
}
}
static class CipherTest {
private final byte[] plaintext;
private final byte[] ciphertext;
private final byte[] key;
private final int effectiveKeySize;
CipherTest(String plaintext, String ciphertext,
String key, int effectiveKeySize) {
this.plaintext = b(plaintext);
this.ciphertext = b(ciphertext);
this.key = b(key);
this.effectiveKeySize = effectiveKeySize;
}
void run() throws Exception {
Cipher cipher = Cipher.getInstance("RC2/ECB/NOPADDING", "SunJCE");
SecretKey keySpec = new SecretKeySpec(key, "RC2");
RC2ParameterSpec rc2Spec = new RC2ParameterSpec(effectiveKeySize);
cipher.init(Cipher.ENCRYPT_MODE, keySpec, rc2Spec);
byte[] enc = cipher.doFinal(plaintext);
if (Arrays.equals(ciphertext, enc) == false) {
System.out.println("RC2AlgorithmParameters Cipher test " +
"encryption failed:");
System.out.println("plaintext: "
+ RC2AlgorithmParameters.toString(plaintext));
System.out.println("ciphertext: "
+ RC2AlgorithmParameters.toString(ciphertext));
System.out.println("encrypted: "
+ RC2AlgorithmParameters.toString(enc));
System.out.println("key: "
+ RC2AlgorithmParameters.toString(key));
System.out.println("effective key length: "
+ effectiveKeySize);
throw new Exception("RC2AlgorithmParameters Cipher test "
+ "encryption failed");
}
enc = cipher.doFinal(plaintext);
if (Arrays.equals(ciphertext, enc) == false) {
throw new Exception("Re-encryption test failed");
}
cipher.init(Cipher.DECRYPT_MODE, keySpec, rc2Spec);
byte[] dec = cipher.doFinal(ciphertext);
if (Arrays.equals(plaintext, dec) == false) {
System.out.println("RC2AlgorithmParameters Cipher test "
+ "decryption failed:");
System.out.println("plaintext: "
+ RC2AlgorithmParameters.toString(plaintext));
System.out.println("ciphertext: "
+ RC2AlgorithmParameters.toString(ciphertext));
System.out.println("decrypted: "
+ RC2AlgorithmParameters.toString(dec));
System.out.println("key: "
+ RC2AlgorithmParameters.toString(key));
System.out.println("effective key length: "
+ effectiveKeySize);
throw new Exception("RC2AlgorithmParameters Cipher test "
+ "decryption failed");
}
System.out.println("passed");
}
}
// test vectors listed in RFC 2268
private final static CipherTest[] tests = {
new CipherTest("00:00:00:00:00:00:00:00", "EB:B7:73:F9:93:27:8E:FF",
"00:00:00:00:00:00:00:00", 63),
new CipherTest("FF:FF:FF:FF:FF:FF:FF:FF", "27:8B:27:E4:2E:2F:0D:49",
"FF:FF:FF:FF:FF:FF:FF:FF", 64),
new CipherTest("10:00:00:00:00:00:00:01", "30:64:9E:DF:9B:E7:D2:C2",
"30:00:00:00:00:00:00:00", 64),
// This vector is not tested because it will throw an exception because the
// key size is too small (less than 40 bits)
// new CipherTest("00:00:00:00:00:00:00:00", "61:A8:A2:44:AD:AC:CC:F0",
// "88", 64),
new CipherTest("00:00:00:00:00:00:00:00", "6C:CF:43:08:97:4C:26:7F",
"88:BC:A9:0E:90:87:5A", 64),
new CipherTest("00:00:00:00:00:00:00:00", "1A:80:7D:27:2B:BE:5D:B1",
"88:BC:A9:0E:90:87:5A:7F:0F:79:C3:84:62:7B:AF:B2", 64),
new CipherTest("00:00:00:00:00:00:00:00", "22:69:55:2A:B0:F8:5C:A6",
"88:BC:A9:0E:90:87:5A:7F:0F:79:C3:84:62:7B:AF:B2", 128),
};
}