status-go/protocol/encryption/protocol_message.proto

79 lines
1.5 KiB
Protocol Buffer

syntax = "proto3";
package encryption;
message SignedPreKey {
bytes signed_pre_key = 1;
uint32 version = 2;
uint32 protocol_version = 3;
}
// X3DH prekey bundle
message Bundle {
// Identity key
bytes identity = 1;
// Installation id
map<string,SignedPreKey> signed_pre_keys = 2;
// Prekey signature
bytes signature = 4;
// When the bundle was created locally
int64 timestamp = 5;
}
message BundleContainer {
reserved 3;
// X3DH prekey bundle
Bundle bundle = 1;
// Private signed prekey
bytes private_signed_pre_key = 2;
}
message DRHeader {
// Current ratchet public key
bytes key = 1;
// Number of the message in the sending chain
uint32 n = 2;
// Length of the previous sending chain
uint32 pn = 3;
// Bundle ID
bytes id = 4;
}
message DHHeader {
// Compressed ephemeral public key
bytes key = 1;
}
message X3DHHeader {
reserved 3;
// Ephemeral key used
bytes key = 1;
// Used bundle's signed prekey
bytes id = 4;
}
// Direct message value
message DirectMessageProtocol {
X3DHHeader X3DH_header = 1;
DRHeader DR_header = 2;
DHHeader DH_header = 101;
// Encrypted payload
bytes payload = 3;
}
// Top-level protocol message
message ProtocolMessage {
// The device id of the sender
string installation_id = 2;
// List of bundles
repeated Bundle bundles = 3;
// One to one message, encrypted, indexed by installation_id
map<string,DirectMessageProtocol> direct_message = 101;
// Public chats, not encrypted
bytes public_message = 102;
}