diff options
Diffstat (limited to 'src/main/java/org/whispersystems/libaxolotl/ecc/DjbECPublicKey.java')
-rw-r--r-- | src/main/java/org/whispersystems/libaxolotl/ecc/DjbECPublicKey.java | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/src/main/java/org/whispersystems/libaxolotl/ecc/DjbECPublicKey.java b/src/main/java/org/whispersystems/libaxolotl/ecc/DjbECPublicKey.java new file mode 100644 index 00000000..9f66d439 --- /dev/null +++ b/src/main/java/org/whispersystems/libaxolotl/ecc/DjbECPublicKey.java @@ -0,0 +1,66 @@ +/** + * Copyright (C) 2013 Open Whisper Systems + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +package org.whispersystems.libaxolotl.ecc; + +import org.whispersystems.libaxolotl.util.ByteUtil; + +import java.math.BigInteger; +import java.util.Arrays; + +public class DjbECPublicKey implements ECPublicKey { + + private final byte[] publicKey; + + DjbECPublicKey(byte[] publicKey) { + this.publicKey = publicKey; + } + + @Override + public byte[] serialize() { + byte[] type = {Curve.DJB_TYPE}; + return ByteUtil.combine(type, publicKey); + } + + @Override + public int getType() { + return Curve.DJB_TYPE; + } + + @Override + public boolean equals(Object other) { + if (other == null) return false; + if (!(other instanceof DjbECPublicKey)) return false; + + DjbECPublicKey that = (DjbECPublicKey)other; + return Arrays.equals(this.publicKey, that.publicKey); + } + + @Override + public int hashCode() { + return Arrays.hashCode(publicKey); + } + + @Override + public int compareTo(ECPublicKey another) { + return new BigInteger(publicKey).compareTo(new BigInteger(((DjbECPublicKey)another).publicKey)); + } + + public byte[] getPublicKey() { + return publicKey; + } +} |