1 files changed, 0 insertions, 54 deletions
diff --git a/src/main/java/org/whispersystems/libaxolotl/ratchet/RootKey.java b/src/main/java/org/whispersystems/libaxolotl/ratchet/RootKey.java
deleted file mode 100644
index 39f3a831..00000000
--- a/src/main/java/org/whispersystems/libaxolotl/ratchet/RootKey.java
+++ /dev/null
@@ -1,54 +0,0 @@
-/**
- * Copyright (C) 2014 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.ratchet;
-
-import org.whispersystems.libaxolotl.InvalidKeyException;
-import org.whispersystems.libaxolotl.ecc.Curve;
-import org.whispersystems.libaxolotl.ecc.ECKeyPair;
-import org.whispersystems.libaxolotl.ecc.ECPublicKey;
-import org.whispersystems.libaxolotl.kdf.DerivedRootSecrets;
-import org.whispersystems.libaxolotl.kdf.HKDF;
-import org.whispersystems.libaxolotl.util.ByteUtil;
-import org.whispersystems.libaxolotl.util.Pair;
-
-public class RootKey {
-
-  private final HKDF   kdf;
-  private final byte[] key;
-
-  public RootKey(HKDF kdf, byte[] key) {
-    this.kdf = kdf;
-    this.key = key;
-  }
-
-  public byte[] getKeyBytes() {
-    return key;
-  }
-
-  public Pair<RootKey, ChainKey> createChain(ECPublicKey theirRatchetKey, ECKeyPair ourRatchetKey)
-      throws InvalidKeyException
-  {
-    byte[]             sharedSecret       = Curve.calculateAgreement(theirRatchetKey, ourRatchetKey.getPrivateKey());
-    byte[]             derivedSecretBytes = kdf.deriveSecrets(sharedSecret, key, "WhisperRatchet".getBytes(), DerivedRootSecrets.SIZE);
-    DerivedRootSecrets derivedSecrets     = new DerivedRootSecrets(derivedSecretBytes);
-
-    RootKey  newRootKey  = new RootKey(kdf, derivedSecrets.getRootKey());
-    ChainKey newChainKey = new ChainKey(kdf, derivedSecrets.getChainKey(), 0);
-
-    return new Pair<>(newRootKey, newChainKey);
-  }
-}