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/*
* Copyright (c) 2018, 2021, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* 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).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.math.BigInteger;
import java.security.*;
import java.security.spec.*;
import java.util.ArrayList;
import java.util.HexFormat;
import java.util.List;
public final class SigRecord {
static final String TEST_SRC = System.getProperty("test.src", ".");
public static final class SigVector {
// digest algorithm to use
final String mdAlg;
// message to test
final String msg;
// expected signature
final String sig;
// optional PSS-only salt value, maybe null
final String salt;
public SigVector(String mdAlg, String msg, String sig, String salt) {
if (mdAlg == null || mdAlg.isEmpty()) {
throw new IllegalArgumentException("Digest algo must be specified");
}
if (msg == null || mdAlg.isEmpty()) {
throw new IllegalArgumentException("Message must be specified");
}
if (sig == null || mdAlg.isEmpty()) {
throw new IllegalArgumentException("Signature must be specified");
}
this.mdAlg = mdAlg;
this.msg = msg;
this.sig = sig;
this.salt = salt;
}
@Override
public String toString() {
return mdAlg + ": msg=" + msg + ": sig=" + sig +
(salt != null? (": salt=" + salt) : "");
}
}
final String id;
// RSA private key value associated with the corresponding test vectors
final RSAPrivateKeySpec privKeySpec;
// RSA public key value associated with the corresponding test vectors
final RSAPublicKeySpec pubKeySpec;
// set of test vectors
final List<SigVector> testVectors;
SigRecord(String mod, String pubExp, String privExp, List<SigVector> testVectors) {
if (mod == null || mod.isEmpty()) {
throw new IllegalArgumentException("Modulus n must be specified");
}
if (pubExp == null || pubExp.isEmpty()) {
throw new IllegalArgumentException("Public Exponent e must be specified");
}
if (privExp == null || privExp.isEmpty()) {
throw new IllegalArgumentException("Private Exponent d must be specified");
}
if (testVectors == null || (testVectors.size() == 0)) {
throw new IllegalArgumentException("One or more test vectors must be specified");
}
BigInteger n = new BigInteger(1, HexFormat.of().parseHex(mod));
BigInteger e = new BigInteger(1, HexFormat.of().parseHex(pubExp));
BigInteger d = new BigInteger(1, HexFormat.of().parseHex(privExp));
this.id = ("n=" + mod + ", e=" + pubExp);
this.pubKeySpec = new RSAPublicKeySpec(n, e);
this.privKeySpec = new RSAPrivateKeySpec(n, d);
this.testVectors = testVectors;
}
/*
* Read a data file into an ArrayList.
* This function will exit the program if reading the file fails
* or if the file is not in the expected format.
*/
public static List<SigRecord> read(String filename)
throws IOException {
List<SigRecord> data = new ArrayList<>();
try (BufferedReader br = new BufferedReader(
new InputStreamReader(new FileInputStream(
TEST_SRC + File.separator + filename)))) {
String line;
String mod = null;
String pubExp = null;
String privExp = null;
List<SigVector> testVectors = new ArrayList<>();
while ((line = br.readLine()) != null) {
if (line.startsWith("n =")) {
mod = line.split("=")[1].trim();
} else if (line.startsWith("e =")) {
pubExp = line.split("=")[1].trim();
} else if (line.startsWith("d =")) {
privExp = line.split("=")[1].trim();
// now should start parsing for test vectors
String mdAlg = null;
String msg = null;
String sig = null;
String salt = null;
boolean sigVectorDone = false;
while ((line = br.readLine()) != null) {
// we only care for lines starting with
// SHAALG, Msg, S, and Salt
if (line.startsWith("SHAAlg =")) {
mdAlg = line.split(" = ")[1].trim();
} else if (line.startsWith("Msg =")) {
msg = line.split(" = ")[1].trim();
} else if (line.startsWith("S =")) {
sig = line.split(" = ")[1].trim();
} else if (line.startsWith("SaltVal =")) {
salt = line.split(" = ")[1].trim();
if (salt.equals("00")) {
salt = "";
}
} else if (line.startsWith("[mod")) {
sigVectorDone = true;
}
if ((mdAlg != null) && (msg != null) && (sig != null) &&
(salt != null)) {
// finish off current SigVector
testVectors.add(new SigVector(mdAlg, msg, sig, salt));
mdAlg = msg = sig = salt = null;
}
if (sigVectorDone) {
break;
}
}
// finish off current SigRecord and clear data for next SigRecord
data.add(new SigRecord(mod, pubExp, privExp, testVectors));
mod = pubExp = privExp = null;
testVectors = new ArrayList<>();
}
}
if (data.isEmpty()) {
throw new RuntimeException("Nothing read from file "
+ filename);
}
}
return data;
}
@Override
public String toString() {
return (id + ", " + testVectors.size() + " test vectors");
}
}
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