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/**
* EdDSA-Java by str4d
*
* To the extent possible under law, the person who associated CC0 with
* EdDSA-Java has waived all copyright and related or neighboring rights
* to EdDSA-Java.
*
* You should have received a copy of the CC0 legalcode along with this
* work. If not, see <https://creativecommons.org/publicdomain/zero/1.0/>.
*
*/
package net.i2p.crypto.eddsa;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import java.security.spec.PKCS8EncodedKeySpec;
import net.i2p.crypto.eddsa.Utils;
import net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec;
import org.junit.Test;
/**
* @author str4d
*
*/
public class EdDSAPrivateKeyTest {
/**
* The example private key MC4CAQAwBQYDK2VwBCIEINTuctv5E1hK1bbY8fdp+K06/nwoy/HU++CXqI9EdVhC
* from https://tools.ietf.org/html/draft-ietf-curdle-pkix-04#section-10.3
*/
static final byte[] TEST_PRIVKEY = Utils.hexToBytes("302e020100300506032b657004220420d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842");
static final byte[] TEST_PRIVKEY_NULL_PARAMS = Utils.hexToBytes("3030020100300706032b6570050004220420d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842");
static final byte[] TEST_PRIVKEY_OLD = Utils.hexToBytes("302f020100300806032b65640a01010420d4ee72dbf913584ad5b6d8f1f769f8ad3afe7c28cbf1d4fbe097a88f44755842");
@Test
public void testDecodeAndEncode() throws Exception {
// Decode
PKCS8EncodedKeySpec encoded = new PKCS8EncodedKeySpec(TEST_PRIVKEY);
EdDSAPrivateKey keyIn = new EdDSAPrivateKey(encoded);
// Encode
EdDSAPrivateKeySpec decoded = new EdDSAPrivateKeySpec(
keyIn.getSeed(),
keyIn.getH(),
keyIn.geta(),
keyIn.getA(),
keyIn.getParams());
EdDSAPrivateKey keyOut = new EdDSAPrivateKey(decoded);
// Check
assertThat(keyOut.getEncoded(), is(equalTo(TEST_PRIVKEY)));
}
@Test
public void testDecodeWithNullAndEncode() throws Exception {
// Decode
PKCS8EncodedKeySpec encoded = new PKCS8EncodedKeySpec(TEST_PRIVKEY_NULL_PARAMS);
EdDSAPrivateKey keyIn = new EdDSAPrivateKey(encoded);
// Encode
EdDSAPrivateKeySpec decoded = new EdDSAPrivateKeySpec(
keyIn.getSeed(),
keyIn.getH(),
keyIn.geta(),
keyIn.getA(),
keyIn.getParams());
EdDSAPrivateKey keyOut = new EdDSAPrivateKey(decoded);
// Check
assertThat(keyOut.getEncoded(), is(equalTo(TEST_PRIVKEY)));
}
@Test
public void testReEncodeOldEncoding() throws Exception {
// Decode
PKCS8EncodedKeySpec encoded = new PKCS8EncodedKeySpec(TEST_PRIVKEY_OLD);
EdDSAPrivateKey keyIn = new EdDSAPrivateKey(encoded);
// Encode
EdDSAPrivateKeySpec decoded = new EdDSAPrivateKeySpec(
keyIn.getSeed(),
keyIn.getH(),
keyIn.geta(),
keyIn.getA(),
keyIn.getParams());
EdDSAPrivateKey keyOut = new EdDSAPrivateKey(decoded);
// Check
assertThat(keyOut.getEncoded(), is(equalTo(TEST_PRIVKEY)));
}
}
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