1 files changed, 8 insertions, 0 deletions
diff --git a/app/src/lib/ts/crc32.worker.ts b/app/src/lib/ts/crc32.worker.ts
new file mode 100644
index 0000000..0d04c7c
--- /dev/null
+++ b/app/src/lib/ts/crc32.worker.ts
@@ -0,0 +1,8 @@
+import crc32 from 'crc/crc32';
+
+onmessage = async (message: MessageEvent<File>) => {
+  const file = message.data;
+  const buffer = await file.arrayBuffer();
+  const crc = crc32(buffer, 517762881);
+  postMessage(crc);
+};