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166
jsign-crypto/src/main/java/net/jsign/jca/SignPathSigningService.java
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| /** | ||
| * Copyright 2025 Emmanuel Bourg | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
|
|
||
| package net.jsign.jca; | ||
|
|
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| import java.io.ByteArrayInputStream; | ||
| import java.io.IOException; | ||
| import java.nio.charset.StandardCharsets; | ||
| import java.security.GeneralSecurityException; | ||
| import java.security.KeyStoreException; | ||
| import java.security.UnrecoverableKeyException; | ||
| import java.security.cert.Certificate; | ||
| import java.security.cert.CertificateException; | ||
| import java.security.cert.CertificateFactory; | ||
| import java.util.ArrayList; | ||
| import java.util.Base64; | ||
| import java.util.HashMap; | ||
| import java.util.LinkedHashMap; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
|
|
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| import net.jsign.DigestAlgorithm; | ||
|
|
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| /** | ||
| * Signing service using the SignPath REST API. | ||
| * | ||
| * @since 7.1 | ||
| * @see <a href="https://about.signpath.io/documentation/crypto-providers/rest-api">SignPath REST API</a> | ||
| */ | ||
| public class SignPathSigningService implements SigningService { | ||
|
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| /** Cache of certificates indexed by alias */ | ||
| private final Map<String, Map<String, ?>> certificates = new HashMap<>(); | ||
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| private final RESTClient client; | ||
|
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| /** | ||
| * Create a new SignPath signing service. | ||
| * | ||
| * @param organizationId the organization ID | ||
| * @param token the API access token | ||
| */ | ||
| public SignPathSigningService(String organizationId, String token) { | ||
| this("https://app.signpath.io/API/v1", organizationId, token); | ||
| } | ||
|
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| SignPathSigningService(String endpoint, String organizationId, String token) { | ||
| this.client = new RESTClient(endpoint + "/" + organizationId) | ||
| .authentication(conn -> conn.setRequestProperty("Authorization", "Bearer " + token)) | ||
| .errorHandler(response -> response.get("status") + " - " + response.get("title") + " - " + JsonWriter.format(response.get("errors"))); | ||
| } | ||
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| @Override | ||
| public String getName() { | ||
| return "SignPath"; | ||
| } | ||
|
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| private void loadKeyStore() throws KeyStoreException { | ||
| if (certificates.isEmpty()) { | ||
| try { | ||
| Map<String, ?> response = client.get("/Cryptoki/MySigningPolicies"); | ||
| Object[] policies = (Object[]) response.get("signingPolicies"); | ||
| for (Object policy : policies) { | ||
| String alias = ((Map) policy).get("projectSlug") + "/" + ((Map) policy).get("signingPolicySlug"); | ||
| certificates.put(alias, ((Map) policy)); | ||
| } | ||
| } catch (IOException e) { | ||
| throw new KeyStoreException("Unable to retrieve the SignPath signing policies", e); | ||
| } | ||
| } | ||
| } | ||
|
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| @Override | ||
| public List<String> aliases() throws KeyStoreException { | ||
| loadKeyStore(); | ||
| return new ArrayList<>(certificates.keySet()); | ||
| } | ||
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| @Override | ||
| public Certificate[] getCertificateChain(String alias) throws KeyStoreException { | ||
| loadKeyStore(); | ||
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| Map<String, ?> policy = certificates.get(alias); | ||
| if (policy == null) { | ||
| throw new KeyStoreException("Unable to retrieve SignPath signing policy '" + alias + "'"); | ||
| } | ||
|
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| byte[] certificateBytes = Base64.getDecoder().decode((String) policy.get("certificateBytes")); | ||
| Certificate certificate; | ||
| try { | ||
| certificate = CertificateFactory.getInstance("X.509").generateCertificate(new ByteArrayInputStream(certificateBytes)); | ||
| } catch (CertificateException e) { | ||
| throw new KeyStoreException(e); | ||
| } | ||
|
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| return new Certificate[] { certificate }; | ||
| } | ||
|
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| private String getAlgorithm(String alias) throws KeyStoreException { | ||
| loadKeyStore(); | ||
| Map<String, ?> policy = certificates.get(alias); | ||
| if (policy == null) { | ||
| return null; | ||
| } | ||
|
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| String keyType = (String) policy.get("keyType"); | ||
|
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| return keyType != null ? keyType.toUpperCase() : null; | ||
| } | ||
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| @Override | ||
| public SigningServicePrivateKey getPrivateKey(String alias, char[] password) throws UnrecoverableKeyException { | ||
| try { | ||
| String algorithm = getAlgorithm(alias); | ||
| if (algorithm == null) { | ||
| throw new UnrecoverableKeyException("Unable to initialize the SignPath private key for the certificate '" + alias + "'"); | ||
| } | ||
| return new SigningServicePrivateKey(alias, algorithm, this); | ||
| } catch (KeyStoreException e) { | ||
| throw (UnrecoverableKeyException) new UnrecoverableKeyException(e.getMessage()).initCause(e); | ||
| } | ||
| } | ||
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| @Override | ||
| public byte[] sign(SigningServicePrivateKey privateKey, String algorithm, byte[] data) throws GeneralSecurityException { | ||
| DigestAlgorithm digestAlgorithm = DigestAlgorithm.of(algorithm.substring(0, algorithm.toLowerCase().indexOf("with"))); | ||
| data = digestAlgorithm.getMessageDigest().digest(data); | ||
|
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| String[] slugs = privateKey.getId().split("/"); | ||
| String project = slugs[0]; | ||
| String signingPolicy = slugs[1]; | ||
|
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| Map<String, String> artifact = new LinkedHashMap<>(); | ||
| artifact.put("SignatureAlgorithm", "RsaPkcs1"); | ||
| artifact.put("RsaHashAlgorithm", digestAlgorithm.oid.toString()); | ||
| artifact.put("Base64EncodedHash", Base64.getEncoder().encodeToString(data)); | ||
|
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| Map<String, Object> request = new LinkedHashMap<>(); | ||
| request.put("ProjectSlug", project); | ||
| request.put("SigningPolicySlug", signingPolicy); | ||
| request.put("IsFastSigningRequest", "true"); | ||
| request.put("Artifact", JsonWriter.format(artifact).getBytes(StandardCharsets.UTF_8)); | ||
|
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| try { | ||
| Map<String, ?> response = client.post("/SigningRequests", request, true); | ||
| String signature = (String) response.get("Signature"); | ||
|
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| return Base64.getDecoder().decode(signature); | ||
| } catch (IOException e) { | ||
| throw new GeneralSecurityException(e); | ||
| } | ||
| } | ||
| } |
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