1 files changed, 20 insertions, 0 deletions
diff --git a/WebInterface/src/js/modules/networking/hash.js b/WebInterface/src/js/modules/networking/hash.js
new file mode 100644
index 0000000..3abcc21
--- /dev/null
+++ b/WebInterface/src/js/modules/networking/hash.js
@@ -0,0 +1,20 @@
+/**
+ * Creates Base64 String with SHA-256 Hash of given string
+ */
+String.prototype.getHash = async function() {
+  let data = new ArrayBuffer(this.length * 2);
+  let bufferView = new Uint16Array(data);
+  for (let i = 0; i < this.length; i++) {
+    bufferView[i] = this.charCodeAt(i);
+  }
+
+  let encrypted = await crypto.subtle.digest('SHA-256', bufferView);
+  let byteArray = new Uint8Array(encrypted);
+  let base64String = '';
+
+  for (let byte of byteArray) {
+    base64String += String.fromCharCode(byte);
+  }
+
+  return btoa(base64String);
+};