better encoding

api/src/api/backup.rs

@@ -75,7 +75,7 @@ pub struct BackupChunk {
     pub chunk_index: u32,
     #[n(1)]
     pub total_chunks: u32,
-    #[n(2)]
+    #[cbor(n(2), with = "minicbor::bytes")]
     pub data: Vec<u8>,
 }
 

api/src/api/bitcoin.rs

@@ -12,15 +12,15 @@ pub struct SignPsbt {
 pub struct AccountUpdate {
     #[n(0)]
     pub account_id: String,
-    #[n(1)]
+    #[cbor(n(1), with = "minicbor::bytes")]
     pub update: Vec<u8>,
 }
 
 #[quantum_link]
 pub struct BroadcastTransaction {
     #[n(0)]
     pub account_id: String,
-    #[n(1)]
+    #[cbor(n(1), with = "minicbor::bytes")]
     pub psbt: Vec<u8>,
 }
 

api/src/api/firmware.rs

@@ -52,9 +52,6 @@ pub enum FirmwareFetchEvent {
     // envoy is sending a chunk for an update patch
     #[n(3)]
     Chunk(#[n(0)] FirmwareChunk),
-    // envoy has sent all the update patches
-    #[n(4)]
-    Complete,
     // envoy failed
     #[n(5)]
     Error(#[n(0)] String),
@@ -71,10 +68,16 @@ pub struct FirmwareChunk {
     pub chunk_index: u16,
     #[n(3)]
     pub total_chunks: u16,
-    #[n(4)]
+    #[cbor(n(4), with = "minicbor::bytes")]
     pub data: Vec<u8>,
 }
 
+impl FirmwareChunk {
+    pub fn is_last(&self) -> bool {
+        self.patch_index == self.total_patches - 1 && self.chunk_index == self.total_chunks - 1
+    }
+}
+
 #[quantum_link]
 pub enum FirmwareUpdateResult {
     #[n(0)]

api/src/api/pairing.rs

@@ -21,7 +21,7 @@ pub struct PairingResponse {
 
 #[quantum_link]
 pub struct PairingRequest {
-    #[n(0)]
+    #[cbor(n(0), with = "minicbor::bytes")]
     pub xid_document: Vec<u8>,
     #[n(1)]
     pub device_name: String,

api/src/api/scv.rs

@@ -18,15 +18,15 @@ pub enum SecurityCheck {
 
 #[quantum_link]
 pub struct ChallengeRequest {
-    #[n(0)]
+    #[cbor(n(0), with = "minicbor::bytes")]
     pub data: Vec<u8>,
 }
 
 #[quantum_link]
 pub enum ChallengeResponseResult {
     #[n(0)]
     Success {
-        #[n(0)]
+        #[cbor(n(0), with = "minicbor::bytes")]
         data: Vec<u8>,
     },
     #[n(1)]