Commit: 7f2750fd5c26cfa43e981d435ee550b714dbd998 - CleanAuLait (git)

Commit MetaInfo

• Revision: 7f2750fd5c26cfa43e981d435ee550b714dbd998 (tree)
• Zeit: 2022-08-07 14:45:13
• Autor: yoshy <yoshy.org.bitbucket@gz.j...>
• Commiter: yoshy

Log Message

[ADD] 暗号化ヘルパクラスを追加

Ändern Zusammenfassung

• add: Core/Converter/CryptoHelper.cs

Diff

--- /dev/null
+++ b/Core/Converter/CryptoHelper.cs
@@ -0,0 +1,49 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace CleanAuLait.Core.Converter
+{
+    public static class CryptoHelper
+    {
+        public static byte[] GenerateEntropy(int length)
+        {
+            return RandomNumberGenerator.GetBytes(length);
+        }
+
+        public static byte[] ProtectData(string str, byte[] entropy)
+        {
+            if (str == null)
+            {
+                return null;
+            }
+
+            if (entropy == null || entropy.Length == 0)
+            {
+                return null;
+            }
+
+            byte[] data = Encoding.UTF8.GetBytes(str);
+            byte[] encrypted = ProtectedData.Protect(data, entropy, DataProtectionScope.CurrentUser);
+
+            return encrypted;
+        }
+
+        public static string UnprotectData(byte[] encrypted, byte[] entropy)
+        {
+            if (encrypted == null || encrypted.Length == 0)
+            {
+                return null;
+            }
+
+            if (entropy == null || entropy.Length == 0)
+            {
+                return null;
+            }
+
+            byte[] data = ProtectedData.Unprotect(encrypted, entropy, DataProtectionScope.CurrentUser);
+            string str = Encoding.UTF8.GetString(data);
+
+            return str;
+        }
+    }
+}