62 lines
1.7 KiB
C#
62 lines
1.7 KiB
C#
using System;
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using System.IO;
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using System.Text;
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using YooAsset;
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/// <summary>
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/// 文件偏移加密方式
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/// </summary>
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public class FileOffsetEncryption : IEncryptionServices
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{
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public EncryptResult Encrypt(EncryptFileInfo fileInfo)
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{
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// 注意：只对音频资源包加密
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if (fileInfo.BundleName.Contains("_gameres_audio"))
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{
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int offset = 32;
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byte[] fileData = File.ReadAllBytes(fileInfo.FileLoadPath);
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var encryptedData = new byte[fileData.Length + offset];
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Buffer.BlockCopy(fileData, 0, encryptedData, offset, fileData.Length);
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EncryptResult result = new EncryptResult();
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result.Encrypted = true;
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result.EncryptedData = encryptedData;
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return result;
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}
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else
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{
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EncryptResult result = new EncryptResult();
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result.Encrypted = false;
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return result;
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}
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}
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}
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/// <summary>
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/// 文件流加密方式
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/// </summary>
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public class FileStreamEncryption : IEncryptionServices
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{
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public EncryptResult Encrypt(EncryptFileInfo fileInfo)
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{
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if (fileInfo.BundleName.Contains("_gameres_audio"))
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{
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var fileData = File.ReadAllBytes(fileInfo.FileLoadPath);
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for (int i = 0; i < fileData.Length; i++)
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{
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fileData[i] ^= BundleStream.KEY;
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}
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EncryptResult result = new EncryptResult();
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result.Encrypted = true;
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result.EncryptedData = fileData;
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return result;
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}
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else
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{
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EncryptResult result = new EncryptResult();
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result.Encrypted = false;
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return result;
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}
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}
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} |