v1.proto

syntax = "proto3";
package zkauth.v1;

message RegisterRequest {
  string user = 1;
  string y1 = 2;
  string y2 = 3;
}

message RegisterResponse {}

message AuthenticationChallengeRequest {
  string user = 1;
  string r1 = 2;
  string r2 = 3;
}

message AuthenticationChallengeResponse {
  string auth_id = 1;
  string c = 2;
}

message AuthenticationAnswerRequest {
  string auth_id = 1;
  string s = 2;
}

message AuthenticationAnswerResponse {
  string session_id = 1;
}

message GetConfigurationRequest {}

message Configuration {
  message DiscreteLogarithm {
    string p = 1;
    string q = 2;
    string g = 3;
    string h = 4;
  }
  message EllipticCurve {
    string g = 1;
    string h = 2;
  }

  oneof flavor {
    DiscreteLogarithm discrete_logarithm = 1;
    EllipticCurve elliptic_curve = 2;
  }
}

service Auth {
  rpc GetConfiguration(GetConfigurationRequest) returns (Configuration) {}
  rpc Register(RegisterRequest) returns (RegisterResponse) {}
  rpc CreateAuthenticationChallenge(AuthenticationChallengeRequest) returns (AuthenticationChallengeResponse) {}
  rpc VerifyAuthentication(AuthenticationAnswerRequest) returns (AuthenticationAnswerResponse) {}
}