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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.spec;
import static org.hamcrest.Matchers.*;
import static org.junit.Assert.*;
import net.i2p.crypto.eddsa.Utils;
import net.i2p.crypto.eddsa.spec.EdDSANamedCurveTable;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
/**
* @author str4d
*
*/
public class EdDSAPrivateKeySpecTest {
static final byte[] ZERO_SEED = Utils.hexToBytes("0000000000000000000000000000000000000000000000000000000000000000");
static final byte[] ZERO_H = Utils.hexToBytes("5046adc1dba838867b2bbbfdd0c3423e58b57970b5267a90f57960924a87f1960a6a85eaa642dac835424b5d7c8d637c00408c7a73da672b7f498521420b6dd3");
static final byte[] ZERO_PK = Utils.hexToBytes("3b6a27bcceb6a42d62a3a8d02a6f0d73653215771de243a63ac048a18b59da29");
static final EdDSANamedCurveSpec ed25519 = EdDSANamedCurveTable.getByName(EdDSANamedCurveTable.ED_25519);
@Rule
public ExpectedException exception = ExpectedException.none();
/**
* Test method for {@link net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec#EdDSAPrivateKeySpec(byte[], net.i2p.crypto.eddsa.spec.EdDSAParameterSpec)}.
*/
@Test
public void testEdDSAPrivateKeySpecFromSeed() {
EdDSAPrivateKeySpec key = new EdDSAPrivateKeySpec(ZERO_SEED, ed25519);
assertThat(key.getSeed(), is(equalTo(ZERO_SEED)));
assertThat(key.getH(), is(equalTo(ZERO_H)));
assertThat(key.getA().toByteArray(), is(equalTo(ZERO_PK)));
}
@Test
public void incorrectSeedLengthThrows() {
exception.expect(IllegalArgumentException.class);
exception.expectMessage("seed length is wrong");
EdDSAPrivateKeySpec key = new EdDSAPrivateKeySpec(new byte[2], ed25519);
}
/**
* Test method for {@link net.i2p.crypto.eddsa.spec.EdDSAPrivateKeySpec#EdDSAPrivateKeySpec(net.i2p.crypto.eddsa.spec.EdDSAParameterSpec, byte[])}.
*/
@Test
public void testEdDSAPrivateKeySpecFromH() {
EdDSAPrivateKeySpec key = new EdDSAPrivateKeySpec(ed25519, ZERO_H);
assertThat(key.getSeed(), is(nullValue()));
assertThat(key.getH(), is(equalTo(ZERO_H)));
assertThat(key.getA().toByteArray(), is(equalTo(ZERO_PK)));
}
@Test
public void incorrectHashLengthThrows() {
exception.expect(IllegalArgumentException.class);
exception.expectMessage("hash length is wrong");
EdDSAPrivateKeySpec key = new EdDSAPrivateKeySpec(ed25519, new byte[2]);
}
}
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