nim-chat-poc/protos/encryption.proto

syntax = "proto3";

package wap.encryption;


// TODO: This also encompasses plaintexts, is there a better name?
// Alternatives: ???
message EncryptedPayload {

    oneof encryption {
        encryption.Plaintext plaintext = 1;
		encryption.Doubleratchet doubleratchet = 2;
    }
}

message Plaintext {
    bytes payload=1;
}

message Doubleratchet {
    bytes dh = 1;       // 32 byte array
    uint32 msgNum = 2;
    uint32 prevChainLen = 3;
    bytes ciphertext = 4;
    string aux = 5;
}