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D4350.1767496260.diff
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D4350.1767496260.diff
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diff --git a/services/identity/src/service.rs b/services/identity/src/service.rs
--- a/services/identity/src/service.rs
+++ b/services/identity/src/service.rs
@@ -1,6 +1,10 @@
use chrono::Utc;
use constant_time_eq::constant_time_eq;
use futures_core::Stream;
+use opaque_ke::{
+ CredentialFinalization, CredentialRequest, ServerLogin,
+ ServerLoginStartParameters,
+};
use rand::rngs::OsRng;
use rand::{CryptoRng, Rng};
use rusoto_core::RusotoError;
@@ -13,6 +17,7 @@
use tracing::{error, info, instrument};
use crate::database::DatabaseClient;
+use crate::opaque::Cipher;
use crate::token::{AccessTokenData, AuthType};
use crate::{config::Config, database::Error};
@@ -23,7 +28,12 @@
login_request::Data::WalletLoginRequest,
login_response::Data::PakeLoginResponse,
login_response::Data::WalletLoginResponse,
- pake_login_response::Data::AccessToken, LoginRequest, LoginResponse,
+ pake_login_request::Data::PakeCredentialFinalization,
+ pake_login_request::Data::PakeCredentialRequestAndUserId,
+ pake_login_response::Data::AccessToken,
+ pake_login_response::Data::PakeCredentialResponse, LoginRequest,
+ LoginResponse,
+ PakeCredentialRequestAndUserId as PakeCredentialRequestAndUserIdStruct,
PakeLoginResponse as PakeLoginResponseStruct, RegistrationRequest,
RegistrationResponse, VerifyUserTokenRequest, VerifyUserTokenResponse,
WalletLoginRequest as WalletLoginRequestStruct,
@@ -275,3 +285,78 @@
Err(e) => Err(e),
}
}
+
+async fn pake_login_start(
+ config: Config,
+ client: DatabaseClient,
+ user_id: &str,
+ pake_credential_request: &[u8],
+ num_messages_received: u8,
+ pake_workflow: PakeWorkflow,
+) -> Result<(PakeLoginResponseStruct, ServerLogin<Cipher>), Status> {
+ if (num_messages_received != 0
+ && matches!(pake_workflow, PakeWorkflow::Login))
+ || (num_messages_received != 1
+ && matches!(pake_workflow, PakeWorkflow::Registration))
+ {
+ error!("Too many messages received in stream, aborting");
+ return Err(Status::aborted("please retry"));
+ }
+ if user_id.is_empty() {
+ error!("Incomplete data: user ID not provided");
+ return Err(Status::aborted("user not found"));
+ }
+ let server_registration =
+ match client.get_pake_registration(user_id.to_string()).await {
+ Ok(Some(r)) => r,
+ Ok(None) => {
+ return Err(Status::not_found("user not found"));
+ }
+ Err(e) => match e {
+ Error::RusotoGet(RusotoError::Service(
+ GetItemError::ResourceNotFound(_),
+ ))
+ | Error::RusotoGet(RusotoError::Credentials(_)) => {
+ return Err(Status::failed_precondition("internal error"));
+ }
+ Error::RusotoGet(_) => {
+ return Err(Status::unavailable("please retry"));
+ }
+ e => {
+ error!("Encountered an unexpected error: {}", e);
+ return Err(Status::failed_precondition("unexpected error"));
+ }
+ },
+ };
+ let credential_request =
+ CredentialRequest::deserialize(pake_credential_request).map_err(|e| {
+ error!("Failed to deserialize credential request: {}", e);
+ Status::invalid_argument("invalid message")
+ })?;
+ match ServerLogin::start(
+ &mut OsRng,
+ server_registration,
+ config.server_keypair.private(),
+ credential_request,
+ ServerLoginStartParameters::default(),
+ ) {
+ Ok(server_login_start_result) => Ok((
+ PakeLoginResponseStruct {
+ data: Some(PakeCredentialResponse(
+ server_login_start_result.message.serialize().map_err(|e| {
+ error!("Failed to serialize PAKE message: {}", e);
+ Status::failed_precondition("internal error")
+ })?,
+ )),
+ },
+ server_login_start_result.state,
+ )),
+ Err(e) => {
+ error!(
+ "Encountered a PAKE protocol error when starting login: {}",
+ e
+ );
+ Err(Status::aborted("server error"))
+ }
+ }
+}

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