net.oauth.jsontoken.crypto.AsciiStringVerifier Maven / Gradle / Ivy
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/**
* Copyright 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 net.oauth.jsontoken.crypto;
import org.apache.commons.codec.binary.StringUtils;
import java.security.SignatureException;
/**
* A Verifier that can verify Strings (as opposed to byte arrays), assuming
* that the String contains characters in the US-ASCII charset.
*/
public class AsciiStringVerifier {
private final Verifier verifier;
/**
* Public constructor.
*
* @param verifier A {@link Verifier} that can verify signatures on byte arrays.
*/
public AsciiStringVerifier(Verifier verifier) {
this.verifier = verifier;
}
/**
* Verifies a signature on an ASCII string.
* @param source the source that was signed.
* @param signature the signature on the source.
* @throws SignatureException if the signature doesn't verify.
*/
public void verifySignature(String source, byte[] signature) throws SignatureException {
verifier.verifySignature(StringUtils.getBytesUsAscii(source), signature);
}
}