1 files changed, 109 insertions, 0 deletions
diff --git a/src/main/java/org/whispersystems/libaxolotl/ratchet/AliceAxolotlParameters.java b/src/main/java/org/whispersystems/libaxolotl/ratchet/AliceAxolotlParameters.java
new file mode 100644
index 00000000..13c995e9
--- /dev/null
+++ b/src/main/java/org/whispersystems/libaxolotl/ratchet/AliceAxolotlParameters.java
@@ -0,0 +1,109 @@
+package org.whispersystems.libaxolotl.ratchet;
+
+import org.whispersystems.libaxolotl.IdentityKey;
+import org.whispersystems.libaxolotl.IdentityKeyPair;
+import org.whispersystems.libaxolotl.ecc.ECKeyPair;
+import org.whispersystems.libaxolotl.ecc.ECPublicKey;
+import org.whispersystems.libaxolotl.util.guava.Optional;
+
+public class AliceAxolotlParameters {
+
+  private final IdentityKeyPair       ourIdentityKey;
+  private final ECKeyPair             ourBaseKey;
+
+  private final IdentityKey           theirIdentityKey;
+  private final ECPublicKey           theirSignedPreKey;
+  private final Optional<ECPublicKey> theirOneTimePreKey;
+  private final ECPublicKey           theirRatchetKey;
+
+  private AliceAxolotlParameters(IdentityKeyPair ourIdentityKey, ECKeyPair ourBaseKey,
+                                 IdentityKey theirIdentityKey, ECPublicKey theirSignedPreKey,
+                                 ECPublicKey theirRatchetKey, Optional<ECPublicKey> theirOneTimePreKey)
+  {
+    this.ourIdentityKey     = ourIdentityKey;
+    this.ourBaseKey         = ourBaseKey;
+    this.theirIdentityKey   = theirIdentityKey;
+    this.theirSignedPreKey  = theirSignedPreKey;
+    this.theirRatchetKey    = theirRatchetKey;
+    this.theirOneTimePreKey = theirOneTimePreKey;
+
+    if (ourIdentityKey == null || ourBaseKey == null || theirIdentityKey == null ||
+        theirSignedPreKey == null || theirRatchetKey == null || theirOneTimePreKey == null)
+    {
+      throw new IllegalArgumentException("Null values!");
+    }
+  }
+
+  public IdentityKeyPair getOurIdentityKey() {
+    return ourIdentityKey;
+  }
+
+  public ECKeyPair getOurBaseKey() {
+    return ourBaseKey;
+  }
+
+  public IdentityKey getTheirIdentityKey() {
+    return theirIdentityKey;
+  }
+
+  public ECPublicKey getTheirSignedPreKey() {
+    return theirSignedPreKey;
+  }
+
+  public Optional<ECPublicKey> getTheirOneTimePreKey() {
+    return theirOneTimePreKey;
+  }
+
+  public static Builder newBuilder() {
+    return new Builder();
+  }
+
+  public ECPublicKey getTheirRatchetKey() {
+    return theirRatchetKey;
+  }
+
+  public static class Builder {
+    private IdentityKeyPair       ourIdentityKey;
+    private ECKeyPair             ourBaseKey;
+
+    private IdentityKey           theirIdentityKey;
+    private ECPublicKey           theirSignedPreKey;
+    private ECPublicKey           theirRatchetKey;
+    private Optional<ECPublicKey> theirOneTimePreKey;
+
+    public Builder setOurIdentityKey(IdentityKeyPair ourIdentityKey) {
+      this.ourIdentityKey = ourIdentityKey;
+      return this;
+    }
+
+    public Builder setOurBaseKey(ECKeyPair ourBaseKey) {
+      this.ourBaseKey = ourBaseKey;
+      return this;
+    }
+
+    public Builder setTheirRatchetKey(ECPublicKey theirRatchetKey) {
+      this.theirRatchetKey = theirRatchetKey;
+      return this;
+    }
+
+    public Builder setTheirIdentityKey(IdentityKey theirIdentityKey) {
+      this.theirIdentityKey = theirIdentityKey;
+      return this;
+    }
+
+    public Builder setTheirSignedPreKey(ECPublicKey theirSignedPreKey) {
+      this.theirSignedPreKey = theirSignedPreKey;
+      return this;
+    }
+
+    public Builder setTheirOneTimePreKey(Optional<ECPublicKey> theirOneTimePreKey) {
+      this.theirOneTimePreKey = theirOneTimePreKey;
+      return this;
+    }
+
+    public AliceAxolotlParameters create() {
+      return new AliceAxolotlParameters(ourIdentityKey, ourBaseKey, theirIdentityKey,
+                                        theirSignedPreKey, theirRatchetKey, theirOneTimePreKey);
+    }
+  }
+}