From 6021105753741a33d40a4fa3e8948e893d6501db Mon Sep 17 00:00:00 2001
From: Matthew Miller <matthew@millerti.me>
Date: Mon, 11 Apr 2022 22:51:37 -0700
Subject: Parse bits 3 and 4 for backup info

---
 packages/server/src/helpers/parseAuthenticatorData.ts | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'packages/server/src/helpers/parseAuthenticatorData.ts')

diff --git a/packages/server/src/helpers/parseAuthenticatorData.ts b/packages/server/src/helpers/parseAuthenticatorData.ts
index a816d15..d4b0646 100644
--- a/packages/server/src/helpers/parseAuthenticatorData.ts
+++ b/packages/server/src/helpers/parseAuthenticatorData.ts
@@ -23,6 +23,8 @@ export default function parseAuthenticatorData(authData: Buffer): ParsedAuthenti
   const flags = {
     up: !!(flagsInt & 1 << 0), // User Presence
     uv: !!(flagsInt & 1 << 2), // User Verified
+    be: !!(flagsInt & 1 << 3), // Backup Eligible
+    bs: !!(flagsInt & 1 << 4), // Backup State
     at: !!(flagsInt & 1 << 6), // Attested Credential Data Present
     ed: !!(flagsInt & 1 << 7), // Extension Data Present
     flagsInt,
@@ -82,6 +84,8 @@ export type ParsedAuthenticatorData = {
   flags: {
     up: boolean;
     uv: boolean;
+    be: boolean;
+    bs: boolean;
     at: boolean;
     ed: boolean;
     flagsInt: number;
-- 
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