Move AES GCM crypto and PBKDF2 key derivation to Cryptography folder

2026-09-07 23:41:47 +02:00 · 2026-06-11 18:41:19 +02:00
parent 37c08fa3c5
commit 2b091e6e7c
7 changed files with 135 additions and 97 deletions
@@ -0,0 +1,27 @@
+using Org.BouncyCastle.Crypto;
+using Org.BouncyCastle.Crypto.Digests;
+using Org.BouncyCastle.Crypto.Generators;
+using Org.BouncyCastle.Crypto.Parameters;
+
+namespace RemSox.Cryptography
+{
+    public static class Pkcs5S2PasswordKeyDeriver
+    {
+        private const int KeySize = 32; // 256-bit key
+        private const int Iterations = 150_000; // PBKDF2 cost factor
+
+        public static byte[] DeriveKey(string password, byte[] salt)
+        {
+            Pkcs5S2ParametersGenerator generator = new Pkcs5S2ParametersGenerator(new Sha256Digest());
+
+            generator.Init(
+                PbeParametersGenerator.Pkcs5PasswordToBytes(password.ToCharArray()),
+                salt,
+                Iterations
+            );
+
+            return ((KeyParameter)generator.GenerateDerivedMacParameters(KeySize * 8))
+                .GetKey();
+        }
+    }
+}