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RegistrationRequest, RegistrationResponse, Ristretto255, TripleDh, ServerLogin, ServerLoginParameters, ServerLoginStartResult, ServerRegistration, ServerSetup, ClientRegistrationStartResult, ClientLogin, ClientLoginFinishParameters, ClientLoginFinishResult, ClientLoginStartResult, ClientRegistration, ClientRegistrationFinishParameters, CredentialResponse, RegistrationUploadLen, ServerLoginFinishResult}; +use opaque_ke::errors::ProtocolError; +use opaque_ke::keypair::{OprfSeed, PrivateKey}; +use sha2::Sha512; +use opaque_ke::CipherSuite; +use opaque_ke::argon2::Argon2; +use opaque_ke::generic_array::GenericArray; +use uuid::Uuid; +use opaque_ke::rand::rngs::OsRng; +use std::marker::PhantomData; + +pub const NONCE_SIZE: usize = 12; +pub const SECRET_KEY_SIZE: usize = 16; +pub const SESSION_KEY_SIZE: usize = 32; + +pub struct NKodeCipherSuite; + +impl CipherSuite for NKodeCipherSuite { + type OprfCs = Ristretto255; + type KeyExchange = TripleDh; + type Ksf = Argon2<'static>; +} + +pub type NKodeServerSetup = ServerSetup, OprfSeed>; + +pub struct RegisterSession { + response: RegistrationResponse, + session_id: Uuid +} + +type PasswordFile = GenericArray>; + + +pub async fn register_secret_key( + email: &String, + key: &[u8; SECRET_KEY_SIZE], + server: &mut NKodeServer +) -> Result<(),String> +where + R: Repo, + S: Sessions +{ + let mut client_rng = OsRng; + let client_reg_start = ClientRegistration::::start(&mut client_rng, key).expect("error starting registration"); + let server_response = server.start(email, &client_reg_start.message).await.expect("error getting server response"); + let client_finish = client_reg_start.state.finish(&mut client_rng, key, server_response.response, ClientRegistrationFinishParameters::default()).expect(""); + server.finish(&server_response.session_id, &client_finish.message.serialize()).await.expect("server to finish secret reg without error"); + Ok(()) +} + +pub struct LoginSession { + response: CredentialResponse, + session_id: Uuid +} + + +pub async fn login_secret_key(email: &String, key: &[u8; SECRET_KEY_SIZE], server: &mut NKodeServer) -> Result, String> +where + R: Repo, + S: Sessions +{ + let mut client_rng = OsRng; + let client_start = ClientLogin::::start(&mut client_rng, key).expect("client secret key login to start result"); + let server_response = server.start(email, client_start.message).await.expect("server secret key login start response"); + let client_finish = client_start.state.finish(&mut client_rng, key,server_response.response,ClientLoginFinishParameters::default()).expect(""); + server.finish(&server_response.session_id, client_finish.message).await.expect("server secret key login to finish"); + Ok(client_finish.session_key.to_vec()) +} +pub trait Repo {} +pub trait Sessions {} + +pub struct NKodeServer { + server_setup: NKodeServerSetup, + repo: R, + session: S, + _state: PhantomData +} + +pub type KeyRegisterSession = RegisterSession; +pub struct KeyRegister; +pub struct KeyLoginI; +pub struct CodeRegister; + +impl NKodeServer +where + R: Repo, + S: Sessions +{ + pub fn new(server_setup: NKodeServerSetup, repo: R, sessions: S) -> Self { + todo!() + } + + pub async fn start( + &mut self, + email: &String, + message: &RegistrationRequest + ) -> Result { + todo!() + } + + pub async fn finish( + &mut self, + session_id: &Uuid, + password_file: &PasswordFile + ) -> Result, ProtocolError> { + todo!() + } +} + +pub type KeyLoginPhaseISession = LoginSession; + +impl NKodeServer +where + R: Repo, + S: Sessions +{ + pub async fn start( + &mut self, + email: &String, + request_bytes:CredentialRequest + ) -> Result { + todo!() + } + + pub async fn finish( + &mut self, + session_id: &Uuid, + message: CredentialFinalization + ) -> Result, ProtocolError> { + todo!() + } +} + +pub type CodeRegisterSession = RegisterSession; +pub struct CodeLogin; + +impl NKodeServer +where + R: Repo, + S: Sessions +{ + pub fn new(server_setup: NKodeServerSetup) -> Self { + todo!() + } + + pub async fn start( + &mut self, + email: &String, + message: &RegistrationRequest + ) -> Result { + todo!() + } + + pub async fn finish( + &mut self, + session_id: &Uuid, + password_file: &PasswordFile) -> Result, ProtocolError> { + todo!() + } +} + +pub type CodeLoginSession = LoginSession; + +impl NKodeServer +where + R: Repo, + S: Sessions +{ + pub async fn start( + &mut self, + email: &String, + request_bytes:CredentialRequest + ) -> Result { + todo!() + } + + pub async fn finish( + &mut self, + session_id: &Uuid, + message:CredentialFinalization + ) -> Result { + todo!() + } +} + +pub struct LoggedIn { + session_key: Vec, + session_id: Uuid, +}