chore: use 256 bits

Author: danisharora099

packages/rln/src/utils/bytes.ts

@@ -56,17 +56,16 @@ export function writeUIntLE(
   return buf;
 }
 
-/**
- * Transforms Uint8Array into BigInt
- * @param array: Uint8Array
- * @returns BigInt
- */
 export function buildBigIntFromUint8Array(
   array: Uint8Array,
   byteOffset: number = 0
 ): bigint {
-  const dataView = new DataView(array.buffer);
-  return dataView.getBigUint64(byteOffset, true);
+  // Use all bytes from byteOffset to the end, little-endian
+  let hex = "";
+  for (let i = array.length - 1; i >= byteOffset; i--) {
+    hex += array[i].toString(16).padStart(2, "0");
+  }
+  return BigInt("0x" + hex);
 }
 
 /**