/*
* 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
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*/
/*
* @ test
* @ bug 8171277
* @ summary XEC curve operations iterative test vectors
* @ library / test / lib
* @ build jdk . test . lib . Convert
* @ modules jdk . crypto . ec / sun . security . ec
* @ run main XECIterative 0 10000
* @ run main XECIterative 10000 20000
* @ run main XECIterative 20000 30000
* @ run main XECIterative 30000 40000
* @ run main XECIterative 40000 50000
* @ run main XECIterative 50000 60000
* @ run main XECIterative 60000 70000
* @ run main XECIterative 70000 80000
* @ run main XECIterative 80000 90000
* @ run main XECIterative 90000 100000
*/
import sun.security.ec.*;
import java.io.*;
import java.security.spec.NamedParameterSpec;
import java.util.*;
/*
* This test is derived from the iterative test in RFC 7748 . To produce the
* test vectors , the implementation ran for 1 , 000 , 000 iterations and saved
* values of k and u at periodic checkpoints . The RFC includes the correct
* value of k after 1 , 000 , 000 iterations , and this value was used to ensure
* that the test vectors are correct . This test has multiple @ run tags so that
* no single run takes too long .
*/
public class XECIterative {
private static class KU {
public byte [] k;
public byte [] u;
}
public static void main(String[] args) throws IOException {
long start = Long .parseLong(args[0 ]);
long end = Long .parseLong(args[1 ]);
XECIterative m = new XECIterative();
m.runIterativeTest("X25519" , start, end);
m.runIterativeTest("X448" , start, end);
}
private void runIterativeTest(String opName, long start, long end)
throws IOException {
NamedParameterSpec paramSpec = new NamedParameterSpec(opName);
XECParameters settings =
XECParameters.get(RuntimeException::new , paramSpec);
XECOperations ops = new XECOperations(settings);
File vectorFile = new File(System.getProperty("test.src" , "." ),
opName + ".iter" );
Map<Long , KU> testIters = new HashMap<Long , KU>();
BufferedReader in = new BufferedReader(new FileReader(vectorFile));
String line;
while ((line = in.readLine()) != null ) {
StringTokenizer tok = new StringTokenizer(line, "," );
long iter = Long .parseLong(tok.nextToken());
String kOrU = tok.nextToken();
byte [] value = HexFormat.of().parseHex(tok.nextToken());
KU entry = testIters.get(iter);
if (entry == null ) {
entry = new KU();
testIters.put(iter, entry);
}
if (kOrU.equals("k" )) {
entry.k = value;
} else {
entry.u = value;
}
}
KU startEntry = testIters.get(start);
byte [] k = startEntry.k.clone();
byte [] u = startEntry.u.clone();
for (long i = start; i <= end; i++) {
KU curEntry;
if (i % 1000 == 0 && (curEntry = testIters.get(i)) != null ) {
if (!Arrays.equals(k, curEntry.k)) {
throw new RuntimeException("At iter " + i + ": expected k: "
+ HexFormat.of().withUpperCase().formatHex(curEntry.k)
+ ", computed k: " + HexFormat.of().withUpperCase().formatHex(k));
}
if (!Arrays.equals(u, curEntry.u)) {
throw new RuntimeException("At iter " + i + ": expected u: "
+ HexFormat.of().withUpperCase().formatHex(curEntry.u)
+ ", computed u: " + HexFormat.of().withUpperCase().formatHex(u));
}
System.out.println(opName + " checkpoint passed at " + i);
}
byte [] k_copy = Arrays.copyOf(k, k.length);
byte [] u_out = ops.encodedPointMultiply(k, u);
u = k_copy;
k = u_out;
}
}
}
Messung V0.5 in Prozent C=99 H=100 G=99
¤ Dauer der Verarbeitung: 0.10 Sekunden
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