---

utils/invShiftRows.ts

@@ -0,0 +1,9 @@
+export const invShiftRows = (state: number[][]): number[][] => {
+  const result: number[][] = []
+
+  for (let i = 0;i < state.length;i++) {
+    result[i] = state[i].slice(-i).concat(state[i].slice(0, -i))
+  }
+
+  return result
+}