diff --git a/crates/ctap2-proto/src/authenticator/assertion/get.rs b/crates/ctap2-proto/src/authenticator/assertion/get.rs
index 980b4b4..7dcbe78 100644
--- a/crates/ctap2-proto/src/authenticator/assertion/get.rs
+++ b/crates/ctap2-proto/src/authenticator/assertion/get.rs
@@ -73,31 +73,45 @@ pub struct Request<'a> {
 }
 
 /// Response structure for [`Ctap2Device::get_assertion`] operation.
+#[cfg_eval]
 #[derive(Debug, Clone)]
+#[cfg_attr(
+    feature = "serde",
+    serde_as,
+    skip_serializing_none,
+    derive(Deserialize)
+)]
 pub struct Response {
     /// > PublicKeyCredentialDescriptor structure containing the credential
     /// > identifier whose private key was used to generate the assertion.
+    #[serde(rename = 0x01)]
     pub credential: public_key::Descriptor,
     /// > The signed-over contextual bindings made by the authenticator, as
     /// > specified in [WebAuthn].
+    #[cfg_attr(feature = "serde", serde_as(as = "Bytes"), serde(rename = 0x02))]
     pub auth_data: Vec<u8>,
     /// > The assertion signature produced by the authenticator, as
     /// > specified in [WebAuthn].
+    #[cfg_attr(feature = "serde", serde_as(as = "Bytes"), serde(rename = 0x03))]
     pub signature: Vec<u8>,
     /// > [`public_key::UserEntity`] structure containing the user account
     /// > information
+    #[serde(rename = 0x04)]
     pub user: Option<public_key::UserEntity>,
     /// > Total number of account credentials for the RP. Optional; defaults
     /// > to one. This member is required when more than one credential is
     /// > found for an RP, and the authenticator does not have a display or
     /// > the UV & UP flags are false.
+    #[serde(rename = 0x05)]
     pub number_of_credentials: Option<usize>,
     /// > Indicates that a credential was selected by the user via
     /// > interaction directly with the authenticator, and thus the platform
     /// > does not need to confirm the credential.
+    #[serde(rename = 0x06)]
     pub user_selected: Option<bool>,
     /// > The contents of the associated `largeBlobKey` if present for the
     /// > asserted credential, and if `largeBlobKey` was true in the
     /// > extensions input.
+    #[cfg_attr(feature = "serde", serde_as(as = "Option<Bytes>"), serde(rename = 0x07))]
     pub large_blob_key: Option<Vec<u8>>,
 }