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diff --git a/services/identity/src/device_list.rs b/services/identity/src/device_list.rs
--- a/services/identity/src/device_list.rs
+++ b/services/identity/src/device_list.rs
@@ -226,20 +226,38 @@
pub fn verify_singleton_device_list(
device_list: &DeviceListUpdate,
expected_primary_device_id: &str,
+ // expected primary device ID for "lastPrimarySignature".
+ // Use `None` if the device list isn't expected to contain last signature.
+ expected_previous_primary_device_id: Option<&String>,
) -> Result<(), tonic::Status> {
use tonic::Status;
- if device_list.last_primary_signature.is_some() {
- debug!("Received lastPrimarySignature for singleton device list");
- return Err(Status::invalid_argument(
- tonic_status_messages::INVALID_DEVICE_LIST_UPDATE,
- ));
- }
+ use tonic_status_messages::INVALID_DEVICE_LIST_UPDATE as INVALID_DEVICE_LIST;
+
+ match (
+ &device_list.last_primary_signature,
+ expected_previous_primary_device_id,
+ ) {
+ (None, None) => (),
+ (Some(_), None) => {
+ debug!("Unexpected lastPrimarySignature for singleton device list");
+ return Err(Status::invalid_argument(INVALID_DEVICE_LIST));
+ }
+ (None, Some(_)) => {
+ debug!("Missing lastPrimarySignature for singleton device list");
+ return Err(Status::invalid_argument(INVALID_DEVICE_LIST));
+ }
+ (Some(last_signature), Some(last_signing_public_key)) => {
+ crate::grpc_utils::ed25519_verify(
+ last_signing_public_key,
+ &device_list.raw_payload,
+ last_signature,
+ )?;
+ }
+ };
let Some(signature) = &device_list.current_primary_signature else {
debug!("Missing curPrimarySignature for singleton device list");
- return Err(Status::invalid_argument(
- tonic_status_messages::INVALID_DEVICE_LIST_UPDATE,
- ));
+ return Err(Status::invalid_argument(INVALID_DEVICE_LIST));
};
crate::grpc_utils::ed25519_verify(
@@ -250,9 +268,7 @@
if device_list.devices.len() != 1 {
debug!("Invalid device list length");
- return Err(Status::invalid_argument(
- tonic_status_messages::INVALID_DEVICE_LIST_UPDATE,
- ));
+ return Err(Status::invalid_argument(INVALID_DEVICE_LIST));
}
if device_list
@@ -262,9 +278,7 @@
.is_none()
{
debug!("Invalid primary device ID for singleton device list");
- return Err(Status::invalid_argument(
- tonic_status_messages::INVALID_DEVICE_LIST_UPDATE,
- ));
+ return Err(Status::invalid_argument(INVALID_DEVICE_LIST));
}
Ok(())
diff --git a/services/identity/src/grpc_services/authenticated.rs b/services/identity/src/grpc_services/authenticated.rs
--- a/services/identity/src/grpc_services/authenticated.rs
+++ b/services/identity/src/grpc_services/authenticated.rs
@@ -475,6 +475,7 @@
crate::device_list::verify_singleton_device_list(
&update_payload,
&device_id,
+ None,
)?;
self
diff --git a/services/identity/src/grpc_utils.rs b/services/identity/src/grpc_utils.rs
--- a/services/identity/src/grpc_utils.rs
+++ b/services/identity/src/grpc_utils.rs
@@ -346,6 +346,7 @@
crate::device_list::verify_singleton_device_list(
&update_payload,
&primary_device_id,
+ None,
)?;
Ok(Some(signed_list))

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