From 2c447c938168d9dfd8ca9fce18c83ac67d792d56 Mon Sep 17 00:00:00 2001
From: afonya2 <adamhir@freemail.hu>
Date: Fri, 16 May 2025 18:45:17 +0200
Subject: [PATCH] added checks

---
 IGA.ts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/IGA.ts b/IGA.ts
index a616cb1..1799127 100644
--- a/IGA.ts
+++ b/IGA.ts
@@ -102,6 +102,9 @@ function checksum(input: string) {
     }
     let bin = ""
     for (let i = 0; i < input.length; i++) {
+        if (input.charCodeAt(i) < 0 || input.charCodeAt(i) > 50000) {
+            throw new Error("Character at index " + i + " is not a valid character")
+        }
         bin += dec2bin(input.charCodeAt(i))
     }
     while (bin.length > 0) {
@@ -124,6 +127,11 @@ function hash(input: string, salt: number = 0, iterations: number = 32, len: num
     if (len < 16) {
         throw new Error("Length must be at least 16")
     }
+    if (seed != undefined) {
+        if (seed < 0 || seed > 65535) {
+            throw new Error("Invalid seed")
+        }
+    }
     const padding = generatePadding(len, seed);
     let hash: number[] = []
     for (let i = 0; i < padding.padding.length; i++) {
@@ -131,6 +139,9 @@ function hash(input: string, salt: number = 0, iterations: number = 32, len: num
     }
     let plus = hash.length
     for (let i = 0; i < input.length; i++) {
+        if (input.charCodeAt(i) < 0 || input.charCodeAt(i) > 50000) {
+            throw new Error("Character at index " + i + " is not a valid character")
+        }
         hash[plus+i] = input.charCodeAt(i)
     }
     for (let i = 0; i < iterations; i++) {