2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2020 Nokia. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.onap.oom.certservice.certification.conversion;
23 import java.io.IOException;
24 import java.security.PrivateKey;
25 import org.bouncycastle.asn1.x509.AlgorithmIdentifier;
26 import org.bouncycastle.crypto.util.PrivateKeyFactory;
27 import org.bouncycastle.operator.ContentSigner;
28 import org.bouncycastle.operator.DefaultDigestAlgorithmIdentifierFinder;
29 import org.bouncycastle.operator.OperatorCreationException;
30 import org.bouncycastle.operator.bc.BcRSAContentSignerBuilder;
31 import org.bouncycastle.pkcs.PKCS10CertificationRequest;
32 import org.springframework.stereotype.Component;
35 public class RsaContentSignerBuilder {
37 ContentSigner build(PKCS10CertificationRequest csr, PrivateKey privateKey)
38 throws IOException, OperatorCreationException {
39 AlgorithmIdentifier sigAlgId = csr.getSignatureAlgorithm();
40 AlgorithmIdentifier digAlgId = new DefaultDigestAlgorithmIdentifierFinder().find(sigAlgId);
42 return new BcRSAContentSignerBuilder(sigAlgId, digAlgId)
43 .build(PrivateKeyFactory.createKey(privateKey.getEncoded()));