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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.vespa.hosted.ca;
import com.yahoo.security.KeyAlgorithm;
import com.yahoo.security.KeyUtils;
import com.yahoo.security.Pkcs10Csr;
import com.yahoo.security.Pkcs10CsrBuilder;
import com.yahoo.security.SignatureAlgorithm;
import com.yahoo.security.SubjectAlternativeName;
import com.yahoo.security.X509CertificateBuilder;
import javax.security.auth.x500.X500Principal;
import java.math.BigInteger;
import java.security.KeyPair;
import java.security.cert.X509Certificate;
import java.time.Duration;
import java.time.Instant;
import java.util.List;
import static com.yahoo.security.SignatureAlgorithm.SHA256_WITH_ECDSA;
/**
* Helper class for creating certificates, CSRs etc. for testing purposes.
*
* @author mpolden
*/
public class CertificateTester {
private CertificateTester() {}
public static X509Certificate createCertificate() {
var keyPair = KeyUtils.generateKeypair(KeyAlgorithm.EC, 256);
return createCertificate("subject", keyPair);
}
public static X509Certificate createCertificate(String cn, KeyPair keyPair) {
var subject = new X500Principal("CN=" + cn);
return X509CertificateBuilder.fromKeypair(keyPair,
subject,
Instant.EPOCH,
Instant.EPOCH.plus(Duration.ofMinutes(1)),
SHA256_WITH_ECDSA,
BigInteger.ONE)
.build();
}
public static Pkcs10Csr createCsr() {
return createCsr(List.of(), List.of());
}
public static Pkcs10Csr createCsr(String dnsName) {
return createCsr(List.of(dnsName), List.of());
}
public static Pkcs10Csr createCsr(List<String> dnsNames) {
return createCsr(dnsNames, List.of());
}
public static Pkcs10Csr createCsr(String cn, List<String> dnsNames) {
return createCsr(cn, dnsNames, List.of());
}
public static Pkcs10Csr createCsr(List<String> dnsNames, List<String> ipAddresses) {
return createCsr("subject", dnsNames, ipAddresses);
}
public static Pkcs10Csr createCsr(String cn, List<String> dnsNames, List<String> ipAddresses) {
X500Principal subject = new X500Principal("CN=" + cn);
KeyPair keyPair = KeyUtils.generateKeypair(KeyAlgorithm.EC, 256);
var builder = Pkcs10CsrBuilder.fromKeypair(subject, keyPair, SignatureAlgorithm.SHA512_WITH_ECDSA);
for (var dnsName : dnsNames) {
builder = builder.addSubjectAlternativeName(SubjectAlternativeName.Type.DNS_NAME, dnsName);
}
for (var ipAddress : ipAddresses) {
builder = builder.addSubjectAlternativeName(SubjectAlternativeName.Type.IP_ADDRESS, ipAddress);
}
return builder.build();
}
}
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