org.apache.sshd.common.util.security.eddsa.SignatureEd25519 Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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
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*/
package org.apache.sshd.common.util.security.eddsa;
import java.util.Map;
import net.i2p.crypto.eddsa.EdDSAEngine;
import org.apache.sshd.common.keyprovider.KeyPairProvider;
import org.apache.sshd.common.session.SessionContext;
import org.apache.sshd.common.signature.AbstractSignature;
import org.apache.sshd.common.util.ValidateUtils;
/**
* @author Apache MINA SSHD Project
*/
public class SignatureEd25519 extends AbstractSignature {
public SignatureEd25519() {
super(EdDSAEngine.SIGNATURE_ALGORITHM);
}
@Override
public boolean verify(SessionContext session, byte[] sig) throws Exception {
byte[] data = sig;
Map.Entry encoding
= extractEncodedSignature(data, k -> KeyPairProvider.SSH_ED25519.equalsIgnoreCase(k));
if (encoding != null) {
String keyType = encoding.getKey();
ValidateUtils.checkTrue(
KeyPairProvider.SSH_ED25519.equals(keyType), "Mismatched key type: %s", keyType);
data = encoding.getValue();
}
return doVerify(data);
}
}