feat(connect): add tryToUnlock to ThpHandshakeInitRequest

packages/connect/src/device/thp/handshake.ts

@@ -91,6 +91,7 @@ export const thpHandshake = async (device: Device) => {
     // 2. Send the message HandshakeInitiationReq(host_ephemeral_pubkey) to the host.
     const handshakeInit = await thpCall(device, 'ThpHandshakeInitRequest', {
         key: hostEphemeralKeys.publicKey,
+        tryToUnlock: 0,
     });
 
     const { trezorEncryptedStaticPubkey } = handshakeInit.message;

packages/protocol/src/protocol-thp/encode.ts

@@ -38,6 +38,9 @@ const getBytesFromField = (data: Record<string, unknown>, fieldName: string) =>
     if (typeof value === 'string') {
         return Buffer.from(value, 'hex');
     }
+    if (typeof value === 'number') {
+        return Buffer.from([value]);
+    }
     if (Buffer.isBuffer(value)) {
         return value;
     }
@@ -58,7 +61,9 @@ const handshakeInitRequestPayload = (data: Record<string, unknown>, _thpState: T
         throw new Error('ThpHandshakeInitRequest missing key field');
     }
 
-    return key;
+    const tryToUnlock = getBytesFromField(data, 'tryToUnlock') ?? Buffer.from([0]);
+
+    return Buffer.concat([key, tryToUnlock]);
 };
 
 const handshakeCompletionRequestPayload = (data: Record<string, unknown>) => {

packages/protocol/src/protocol-thp/messages/messageTypes.ts

@@ -33,6 +33,7 @@ export type ThpCreateChannelResponse = {
 
 export type ThpHandshakeInitRequest = {
     key: Buffer;
+    tryToUnlock: 0 | 1;
 };
 
 export type ThpHandshakeInitResponse = {