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(ShiinaRio): Added SaiminCrypt

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Crsky
2025-09-28 01:38:57 +08:00
parent 57ceb5794b
commit d31f6562a5
1 changed files with 40 additions and 0 deletions
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40
ArcFormats/ShiinaRio/WarcEncryption.cs
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@@ -1355,4 +1355,44 @@ namespace GameRes.Formats.ShiinaRio
throw new NotImplementedException ();
}
}
[Serializable]
public class SaiminCrypt : IDecryptExtra
{
public void Decrypt (byte[] data, int index, uint length, uint flags)
{
byte[] key = new byte[]
{
0x81, 0x75, 0x89, 0xBD, 0x82, 0xA9, 0x91, 0xE5,
0x82, 0xAB, 0x82, 0xC8, 0x8E, 0x96, 0x82, 0xF0,
0x90, 0xAC, 0x82, 0xB5, 0x90, 0x8B, 0x82, 0xB0,
0x82, 0xBD, 0x8B, 0x43, 0x95, 0xAA, 0x82, 0xC5,
0x83, 0x51, 0x83, 0x5C, 0x81, 0x49, 0x81, 0x76,
0x81, 0x75, 0x82, 0xC7, 0x82, 0xEA, 0x82, 0xBE,
0x82, 0xAF, 0x92, 0xE1, 0x92, 0xC0, 0x82, 0xC5,
0x93, 0xAD, 0x82, 0xA9, 0x82, 0xB9, 0x82, 0xE9,
0x82, 0xC2, 0x82, 0xE0, 0x82, 0xE8, 0x82, 0xC5,
0x83, 0x51, 0x83, 0x5C, 0x21, 0x21, 0x81, 0x76
};
if (length >= 0x200)
{
if ((flags & 0x202) == 0x202)
{
for (int i = 0; i < ((length & 0x7E) | 1); i++)
{
data[index+i] ^= key[i % 0x40];
}
var value = MemoryMarshal.Read<uint> (data.AsSpan(index+0x104));
value ^= length;
MemoryMarshal.Write<uint> (data.AsSpan (index+0x104), ref value);
}
}
}
public void Encrypt (byte[] data, int index, uint length, uint flags)
{
throw new NotImplementedException ();
}
}
}