feat: 项目初始化 + 3D方块世界原型 + AI助搭系统

初始化 monorepo: Go后端(7微服务) + Unity客户端(9模块) + 启动器 HTML5原型: Three.js 3D体素世界, Perlin噪声地形, 原版材质, 22种方块 Minecraft创造模式背包: 双栏布局, 拖拽移动物品, 方向性元件引脚 AI助搭策划文档 + 客户端/服务端骨架 + Docker Compose + CI
2026-08-08 14:07:56 +08:00
parent 9500c4c80a
commit f70b061d1a
1972 changed files with 159760 additions and 6 deletions
@@ -0,0 +1,54 @@
+using System;
+using System.IO;
+using System.Security.Cryptography;
+
+namespace PCL.Core.Utils.Encryption
+{
+    [Obsolete("Do not use this AES mode for Encryption")]
+    public sealed class AesCbcProvider : IEncryptionProvider
+    {
+        public static AesCbcProvider Instance { get; } = new();
+
+        private const int SaltSize = 32;
+        private const int IvSize = 16;
+
+        public byte[] Decrypt(ReadOnlySpan<byte> data, ReadOnlySpan<byte> key)
+        {
+            using var aes = Aes.Create();
+            aes.KeySize = 256;
+            aes.BlockSize = 128;
+            aes.Mode = CipherMode.CBC;
+            aes.Padding = PaddingMode.PKCS7;
+
+            var salt = data[..SaltSize];
+
+            var iv = data[SaltSize..(SaltSize + IvSize)];
+            aes.IV = iv.ToArray();
+
+            if (data.Length < salt.Length + iv.Length)
+            {
+                throw new ArgumentException("AES-CBC: Can not decrypt data, the encrypted data is broken");
+            }
+
+#pragma warning disable SYSLIB0041
+            using (var deriveBytes = new Rfc2898DeriveBytes(key.ToArray(), salt.ToArray(), 1000))
+            {
+                aes.Key = deriveBytes.GetBytes(aes.KeySize / 8);
+            }
+#pragma warning restore SYSLIB0041
+
+            using var ret = new MemoryStream();
+            using var ms = new MemoryStream(data[(SaltSize + IvSize)..].ToArray());
+            using var cs = new CryptoStream(ms, aes.CreateDecryptor(), CryptoStreamMode.Read);
+            cs.CopyTo(ret);
+            return ret.ToArray();
+        }
+
+        public byte[] Encrypt(ReadOnlySpan<byte> data, ReadOnlySpan<byte> key)
+        {
+            throw new NotSupportedException("You should no longer use AES-CBC as your encryption method");
+        }
+
+        public bool IsSupported { get => false; }
+    }
+}