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* this work for additional information regarding copyright
* ownership. Elasticsearch licenses this file to you under
* the Apache License, Version 2.0 (the "License"); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.elasticsearch.common.hash;
import org.elasticsearch.test.ESTestCase;
import java.math.BigInteger;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
public class MessageDigestsTests extends ESTestCase {
private void assertHash(String expected, String test, MessageDigest messageDigest) {
String actual = MessageDigests.toHexString(messageDigest.digest(test.getBytes(StandardCharsets.UTF_8)));
assertEquals(expected, actual);
}
public void testMd5() throws Exception {
assertHash("d41d8cd98f00b204e9800998ecf8427e", "", MessageDigests.md5());
assertHash("900150983cd24fb0d6963f7d28e17f72", "abc", MessageDigests.md5());
assertHash("8215ef0796a20bcaaae116d3876c664a", "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", MessageDigests.md5());
assertHash("7707d6ae4e027c70eea2a935c2296f21", new String(new char[1000000]).replace("\0", "a"), MessageDigests.md5());
assertHash("9e107d9d372bb6826bd81d3542a419d6", "The quick brown fox jumps over the lazy dog", MessageDigests.md5());
assertHash("1055d3e698d289f2af8663725127bd4b", "The quick brown fox jumps over the lazy cog", MessageDigests.md5());
}
public void testSha1() throws Exception {
assertHash("da39a3ee5e6b4b0d3255bfef95601890afd80709", "", MessageDigests.sha1());
assertHash("a9993e364706816aba3e25717850c26c9cd0d89d", "abc", MessageDigests.sha1());
assertHash("84983e441c3bd26ebaae4aa1f95129e5e54670f1", "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", MessageDigests.sha1());
assertHash("34aa973cd4c4daa4f61eeb2bdbad27316534016f", new String(new char[1000000]).replace("\0", "a"), MessageDigests.sha1());
assertHash("2fd4e1c67a2d28fced849ee1bb76e7391b93eb12", "The quick brown fox jumps over the lazy dog", MessageDigests.sha1());
assertHash("de9f2c7fd25e1b3afad3e85a0bd17d9b100db4b3", "The quick brown fox jumps over the lazy cog", MessageDigests.sha1());
}
public void testSha256() throws Exception {
assertHash("e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "", MessageDigests.sha256());
assertHash("ba7816bf8f01cfea414140de5dae2223b00361a396177a9cb410ff61f20015ad", "abc", MessageDigests.sha256());
assertHash("248d6a61d20638b8e5c026930c3e6039a33ce45964ff2167f6ecedd419db06c1", "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", MessageDigests.sha256());
assertHash("cdc76e5c9914fb9281a1c7e284d73e67f1809a48a497200e046d39ccc7112cd0", new String(new char[1000000]).replace("\0", "a"), MessageDigests.sha256());
assertHash("d7a8fbb307d7809469ca9abcb0082e4f8d5651e46d3cdb762d02d0bf37c9e592", "The quick brown fox jumps over the lazy dog", MessageDigests.sha256());
assertHash("e4c4d8f3bf76b692de791a173e05321150f7a345b46484fe427f6acc7ecc81be", "The quick brown fox jumps over the lazy cog", MessageDigests.sha256());
}
public void testToHexString() throws Exception {
BigInteger expected = BigInteger.probablePrime(256, random());
byte[] bytes = expected.toByteArray();
String hex = MessageDigests.toHexString(bytes);
String zeros = new String(new char[2 * bytes.length]).replace("\0", "0");
String expectedAsString = expected.toString(16);
String expectedHex = zeros.substring(expectedAsString.length()) + expectedAsString;
assertEquals(expectedHex, hex);
BigInteger actual = new BigInteger(hex, 16);
assertEquals(expected, actual);
}
}