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// Copyright 2018 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.security;
import org.junit.Test;
import javax.security.auth.x500.X500Principal;
import java.security.KeyPair;
import java.security.NoSuchAlgorithmException;
import java.security.cert.X509Certificate;
import java.time.Instant;
import java.time.temporal.ChronoUnit;
import static org.junit.Assert.assertEquals;
/**
* @author bjorncs
*/
public class X509CertificateBuilderTest {
@Test
public void can_build_self_signed_certificate() throws NoSuchAlgorithmException {
KeyPair keyPair = KeyUtils.generateKeypair(KeyAlgorithm.RSA, 2048);
X500Principal subject = new X500Principal("CN=myservice");
X509Certificate cert =
X509CertificateBuilder.fromKeypair(
keyPair,
subject,
Instant.now(),
Instant.now().plus(1, ChronoUnit.DAYS),
SignatureAlgorithm.SHA256_WITH_RSA,
1)
.setBasicConstraints(true, true)
.build();
assertEquals(subject, cert.getSubjectX500Principal());
}
@Test
public void can_build_certificate_from_csr() {
X500Principal subject = new X500Principal("CN=subject");
X500Principal issuer = new X500Principal("CN=issuer");
KeyPair csrKeypair = KeyUtils.generateKeypair(KeyAlgorithm.RSA, 2048);
Pkcs10Csr csr = Pkcs10CsrBuilder.fromKeypair(subject, csrKeypair, SignatureAlgorithm.SHA256_WITH_RSA).build();
KeyPair caKeypair = KeyUtils.generateKeypair(KeyAlgorithm.RSA, 2048);
X509Certificate cert = X509CertificateBuilder
.fromCsr(
csr,
issuer,
Instant.now(),
Instant.now().plus(1, ChronoUnit.DAYS),
caKeypair.getPrivate(),
SignatureAlgorithm.SHA256_WITH_RSA,
1)
.addSubjectAlternativeName("subject1.alt")
.addSubjectAlternativeName("subject2.alt")
.build();
assertEquals(subject, cert.getSubjectX500Principal());
}
}
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