com.google.api.client.auth.oauth.OAuthRsaSigner Maven / Gradle / Ivy

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Google API Client Library for Java. Supports Java 5 (or higher) desktop (SE) and web (EE), Android, and Google App Engine.

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/*
 * Copyright (c) 2010 Google Inc.
 * 
 * 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 com.google.api.client.auth.oauth;

import com.google.api.client.auth.RsaSha;

import java.security.GeneralSecurityException;
import java.security.PrivateKey;

/**
 * OAuth {@code "RSA-SHA1"} signature method.
 * 
 * The private key may be retrieved using the utilities in {@link RsaSha}.
 * 
 * @since 1.0
 * @author Yaniv Inbar
 */
public final class OAuthRsaSigner implements OAuthSigner {

  /** Private key. */
  public PrivateKey privateKey;

  public String getSignatureMethod() {
    return "RSA-SHA1";
  }

  public String computeSignature(String signatureBaseString)
      throws GeneralSecurityException {
    return RsaSha.sign(this.privateKey, signatureBaseString);
  }
}