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/*
* Copyright © 2017-2021 WireGuard LLC. All Rights Reserved.
* SPDX-License-Identifier: Apache-2.0
*/
package com.wireguard.crypto;
import com.wireguard.util.NonNullForAll;
/**
* Represents a Curve25519 key pair as used by WireGuard.
* <p>
* Instances of this class are immutable.
*/
@NonNullForAll
public class KeyPair {
private final Key privateKey;
private final Key publicKey;
/**
* Creates a key pair using a newly-generated private key.
*/
public KeyPair() {
this(Key.generatePrivateKey());
}
/**
* Creates a key pair using an existing private key.
*
* @param privateKey a private key, used to derive the public key
*/
public KeyPair(final Key privateKey) {
this.privateKey = privateKey;
publicKey = Key.generatePublicKey(privateKey);
}
/**
* Returns the private key from the key pair.
*
* @return the private key
*/
public Key getPrivateKey() {
return privateKey;
}
/**
* Returns the public key from the key pair.
*
* @return the public key
*/
public Key getPublicKey() {
return publicKey;
}
}
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