rebuild project & update internal names

LightlessSync/Utils/Crypto.cs

@@ -0,0 +1,43 @@
+using System.Security.Cryptography;
+using System.Text;
+
+namespace LightlessSync.Utils;
+
+public static class Crypto
+{
+#pragma warning disable SYSLIB0021 // Type or member is obsolete
+
+    private static readonly Dictionary<(string, ushort), string> _hashListPlayersSHA256 = new();
+    private static readonly Dictionary<string, string> _hashListSHA256 = new(StringComparer.Ordinal);
+    private static readonly SHA256CryptoServiceProvider _sha256CryptoProvider = new();
+
+    public static string GetFileHash(this string filePath)
+    {
+        using SHA1CryptoServiceProvider cryptoProvider = new();
+        return BitConverter.ToString(cryptoProvider.ComputeHash(File.ReadAllBytes(filePath))).Replace("-", "", StringComparison.Ordinal);
+    }
+
+    public static string GetHash256(this (string, ushort) playerToHash)
+    {
+        if (_hashListPlayersSHA256.TryGetValue(playerToHash, out var hash))
+            return hash;
+
+        return _hashListPlayersSHA256[playerToHash] =
+            BitConverter.ToString(_sha256CryptoProvider.ComputeHash(Encoding.UTF8.GetBytes(playerToHash.Item1 + playerToHash.Item2.ToString()))).Replace("-", "", StringComparison.Ordinal);
+    }
+
+    public static string GetHash256(this string stringToHash)
+    {
+        return GetOrComputeHashSHA256(stringToHash);
+    }
+
+    private static string GetOrComputeHashSHA256(string stringToCompute)
+    {
+        if (_hashListSHA256.TryGetValue(stringToCompute, out var hash))
+            return hash;
+
+        return _hashListSHA256[stringToCompute] =
+            BitConverter.ToString(_sha256CryptoProvider.ComputeHash(Encoding.UTF8.GetBytes(stringToCompute))).Replace("-", "", StringComparison.Ordinal);
+    }
+#pragma warning restore SYSLIB0021 // Type or member is obsolete
+}