/*
* Copyright (c) [2016] [ <ether.camp> ]
* This file is part of the ethereumJ library.
*
* The ethereumJ library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ethereumJ library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the ethereumJ library. If not, see <http://www.gnu.org/licenses/>.
*/
package org.ethereum.crypto.jce;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Provider;
import javax.crypto.KeyAgreement;
public final class ECKeyAgreement {
public static final String ALGORITHM = "ECDH";
private static final String algorithmAssertionMsg =
"Assumed the JRE supports EC key agreement";
private ECKeyAgreement() { }
public static KeyAgreement getInstance() {
try {
return KeyAgreement.getInstance(ALGORITHM);
} catch (NoSuchAlgorithmException ex) {
throw new AssertionError(algorithmAssertionMsg, ex);
}
}
public static KeyAgreement getInstance(final String provider) throws NoSuchProviderException {
try {
return KeyAgreement.getInstance(ALGORITHM, provider);
} catch (NoSuchAlgorithmException ex) {
throw new AssertionError(algorithmAssertionMsg, ex);
}
}
public static KeyAgreement getInstance(final Provider provider) {
try {
return KeyAgreement.getInstance(ALGORITHM, provider);
} catch (NoSuchAlgorithmException ex) {
throw new AssertionError(algorithmAssertionMsg, ex);
}
}
}