server/AyaNova/util/Hasher.cs

@@ -0,0 +1,53 @@
+using System;
+using System.Security.Cryptography;
+using Microsoft.AspNetCore.Cryptography.KeyDerivation;
+namespace AyaNova.Util
+{
+
+
+    public static class Hasher
+    {
+
+
+        public static string hash(string Salt, string Password)
+        {
+
+            //adapted from here:
+            //https://docs.microsoft.com/en-us/aspnet/core/security/data-protection/consumer-apis/password-hashing
+            string hashed = Convert.ToBase64String(KeyDerivation.Pbkdf2(
+                       password: Password,
+                       salt: Convert.FromBase64String(Salt),
+                       prf: KeyDerivationPrf.HMACSHA512,
+                       iterationCount: 10000,
+                       numBytesRequested: 512 / 8));
+            return hashed;
+        }
+
+        //Generate salt
+        public static string GenerateSalt()
+        {
+            var salt = new byte[32];
+            var random = RandomNumberGenerator.Create();
+            random.GetNonZeroBytes(salt);
+            return Convert.ToBase64String(salt);
+        }
+
+
+        // /// <summary>
+        // /// Generate a random ID
+        // /// </summary>
+        // /// <returns>HEX</returns>
+        // internal static string GenerateStrongId()
+        // {
+        //     var s = new byte[32];
+        //     var random = RandomNumberGenerator.Create();
+        //     random.GetNonZeroBytes(s);
+        //     return BitConverter.ToString(s).Replace("-", string.Empty).ToLowerInvariant();
+        // }
+
+
+
+
+    }//eoc
+
+}//eons