Init (#1)

backend/password-hash.ts

@@ -0,0 +1,47 @@
+import bcrypt from "bcryptjs";
+import crypto from "crypto";
+const saltRounds = 10;
+
+/**
+ * Hash a password
+ * @param {string} password Password to hash
+ * @returns {string} Hash
+ */
+export function generatePasswordHash(password : string) {
+    return bcrypt.hashSync(password, saltRounds);
+}
+
+/**
+ * Verify a password against a hash
+ * @param {string} password Password to verify
+ * @param {string} hash Hash to verify against
+ * @returns {boolean} Does the password match the hash?
+ */
+export function verifyPassword(password, hash) {
+    return bcrypt.compareSync(password, hash);
+}
+
+/**
+ * Does the hash need to be rehashed?
+ * @param {string} hash Hash to check
+ * @returns {boolean} Needs to be rehashed?
+ */
+export function needRehashPassword(hash : string) : boolean {
+    return false;
+}
+
+export const SHAKE256_LENGTH = 16;
+
+/**
+ * @param {string} data The data to be hashed
+ * @param {number} len Output length of the hash
+ * @returns {string} The hashed data in hex format
+ */
+export function shake256(data, len) {
+    if (!data) {
+        return "";
+    }
+    return crypto.createHash("shake256", { outputLength: len })
+        .update(data)
+        .digest("hex");
+}