Hash Function

julien-boudry · May 15, 2021 · 10bbd37 · 10bbd37
1 parent 88aecfc
commit 10bbd37
Showing 1 changed file with 13 additions and 6 deletions.
diff --git a/secret-hash.html b/secret-hash.html
@@ -34,23 +34,29 @@
 <body>
 
 <h2>Input:</h2>
-<input type="text" autocomplete="off" class="encode_sha_param" id="encode_sha_form" style="width:80%">
+<input required type="text" autocomplete="off" class="encode_sha_param" id="encode_sha_form" style="width:80%">
+<br><br>
+<strong>Function:</strong>
+<select class="encode_function" id="encode_function" required>
+    <option selected value="SHA-512">SHA-512</option>
+    <option value="SHA-256">SHA-256</option>
+</select>
 <br>
 
 <br>
 <input type="button" value="Submit" id="valid_button">
 
 <br><br><hr><br>
 
-<h2>SHA-512:</h2>
+<h2>Hash:</h2>
 <div id="sha_result" style="font-weight:bold;color:blue;background-color:yellow;width:85%;word-break:break-all;margin:auto;">??????</div>
 
 
 <script type="text/javascript">
 
-    async function digestMessage(message) {
+    async function digestMessage(message, hashFunction) {
       var msgUint8 = new TextEncoder().encode(message);                           // encode as (utf-8) Uint8Array
-      var hashBuffer = await crypto.subtle.digest('SHA-512', msgUint8);           // hash the message
+      var hashBuffer = await crypto.subtle.digest(hashFunction, msgUint8);        // hash the message
       var hashArray = Array.from(new Uint8Array(hashBuffer));                     // convert buffer to byte array
       var hashHex = hashArray.map(b => b.toString(16).padStart(2, '0')).join(''); // convert bytes to hex string
 
@@ -59,12 +65,13 @@ <h2>SHA-512:</h2>
 
     $("#valid_button").on("click",(async function(){
 
+        var hashFunction = $("#encode_function").val();
         var digestHex = $("#encode_sha_form").val();
-        
+
         var iteration = 1;
 
         for (let i = 0; i < iteration; i++) {
-          digestHex = await digestMessage(digestHex);
+          digestHex = await digestMessage(digestHex, hashFunction);
         }
 
         $("#sha_result").html(digestHex.toUpperCase());