cneicy
d74c2f08ca
- 将 ShrinkEventBus、ShrinkDataSaver 及其 EventBus 集成从 gitlink 转为仓库直接维护的完整 UPM 包，补齐运行时、编辑器工具、测试与文档 - 新增 Command 和 Network 的 App 集成组件，支持 ContextLoader 服务发布、可逆注销及 Network Loopback 生命周期管理 - 更新 Starter 与演示组合逻辑，缺失模块时可注册、已有兼容安装器时可覆盖，并补充宿主启动断言 - 升级内部包依赖与 Shared CodeGen 包定义，放宽 Integration.App 包的 Git 忽略规则 - 将独立服务器生成器改为基于已编译程序集的语义扫描，支持 partial、复杂泛型、命名冲突检测及模板 SHA-256 覆写保护 - 新增 Network 语义扫描、模板保护和 App 组件生命周期测试 - 新增真实 UPM 消费工程验证脚本，校验内部版本一致性、程序集加载及 EditMode 测试 - 重构当前架构文档并归档已完成的 Cordis 迁移与旧代码地图
86 lines
3.1 KiB
C#
86 lines
3.1 KiB
C#
using System;
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using System.IO;
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using System.Security.Cryptography;
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using System.Text;
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namespace ShrinkDataSaver
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{
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public static class SaveEncryptor
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{
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private const int KeySize = 256;
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private const int BlockSize = 128;
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private const int IvBytes = 16;
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private const int SaltBytes = 16;
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private const int Iterations = 10000;
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public static byte[] Encrypt(byte[] data, string password)
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{
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if (data == null) throw new ArgumentNullException(nameof(data));
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if (string.IsNullOrEmpty(password)) throw new ArgumentException("Password must not be empty.");
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var salt = GenerateRandom(SaltBytes);
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var iv = GenerateRandom(IvBytes);
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var key = DeriveKey(password, salt);
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using var aes = CreateAes(key, iv);
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using var encryptor = aes.CreateEncryptor();
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var cipher = encryptor.TransformFinalBlock(data, 0, data.Length);
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var result = new byte[SaltBytes + IvBytes + cipher.Length];
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Buffer.BlockCopy(salt, 0, result, 0, SaltBytes);
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Buffer.BlockCopy(iv, 0, result, SaltBytes, IvBytes);
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Buffer.BlockCopy(cipher, 0, result, SaltBytes + IvBytes, cipher.Length);
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return result;
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}
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public static byte[] Decrypt(byte[] data, string password)
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{
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if (data == null) throw new ArgumentNullException(nameof(data));
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if (string.IsNullOrEmpty(password)) throw new ArgumentException("Password must not be empty.");
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if (data.Length < SaltBytes + IvBytes)
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throw new ArgumentException("Data is too short to be valid encrypted content.");
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var salt = new byte[SaltBytes];
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var iv = new byte[IvBytes];
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var cipher = new byte[data.Length - SaltBytes - IvBytes];
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Buffer.BlockCopy(data, 0, salt, 0, SaltBytes);
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Buffer.BlockCopy(data, SaltBytes, iv, 0, IvBytes);
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Buffer.BlockCopy(data, SaltBytes + IvBytes, cipher, 0, cipher.Length);
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var key = DeriveKey(password, salt);
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using var aes = CreateAes(key, iv);
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using var decryptor = aes.CreateDecryptor();
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return decryptor.TransformFinalBlock(cipher, 0, cipher.Length);
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}
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private static byte[] DeriveKey(string password, byte[] salt)
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{
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using var deriveBytes = new Rfc2898DeriveBytes(
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Encoding.UTF8.GetBytes(password), salt, Iterations, HashAlgorithmName.SHA256);
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return deriveBytes.GetBytes(KeySize / 8);
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}
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private static Aes CreateAes(byte[] key, byte[] iv)
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{
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var aes = Aes.Create();
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aes.KeySize = KeySize;
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aes.BlockSize = BlockSize;
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aes.Mode = CipherMode.CBC;
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aes.Padding = PaddingMode.PKCS7;
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aes.Key = key;
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aes.IV = iv;
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return aes;
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}
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private static byte[] GenerateRandom(int length)
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{
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var bytes = new byte[length];
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using var rng = RandomNumberGenerator.Create();
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rng.GetBytes(bytes);
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return bytes;
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}
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}
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} |