Signal-Android/libaxolotl/protobuf/WhisperTextProtocol.proto
Moxie Marlinspike 811479d168 Add first cut of protocol v3 support.
1) Use the new /v2/keys API for storing/retrieving prekey bundles.

2) For sessions built with PreKeyBundle and PreKeyWhisperMessage,
   use a v3 ratcheting session when available.
2014-10-20 12:17:23 -07:00

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Protocol Buffer

package textsecure;
option java_package = "org.whispersystems.libaxolotl.protocol";
option java_outer_classname = "WhisperProtos";
message WhisperMessage {
optional bytes ephemeralKey = 1;
optional uint32 counter = 2;
optional uint32 previousCounter = 3;
optional bytes ciphertext = 4;
}
message PreKeyWhisperMessage {
optional uint32 registrationId = 5;
optional uint32 preKeyId = 1;
optional uint32 deviceKeyId = 6;
optional bytes baseKey = 2;
optional bytes identityKey = 3;
optional bytes message = 4; // WhisperMessage
}
message KeyExchangeMessage {
optional uint32 id = 1;
optional bytes baseKey = 2;
optional bytes ephemeralKey = 3;
optional bytes identityKey = 4;
}