chizui/YarikStudio
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

- [Core] Added new entries.

Browse Source
This commit is contained in:
Razmoth
2024-01-20 19:57:00 +04:00
parent 27d471afab
commit 01b3a1a1cd
3 changed files with 134 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

115
AssetStudio/ImportHelper.cs
View File

@@ -977,7 +977,6 @@ namespace AssetStudio
throw new Exception("Invalid generation");
}
long value = 0;
var data = reader.ReadBytes((int)reader.Remaining);
var blockCount = data.Length / 0x10;
@@ -1016,5 +1015,119 @@ namespace AssetStudio
ms.Position = 0;
return new FileReader(reader.FullPath, ms);
}
public static FileReader DecryptMuvLuvDimensions(FileReader reader)
{
Logger.Verbose($"Attempting to decrypt file {reader.FileName} with Muv Luv Dimensions encryption");
var key = new byte[] { 0xFD, 0x13, 0x7B, 0xEE, 0xC5, 0xFE, 0x50, 0x12, 0x4D, 0x38 };
var data = reader.ReadBytes((int)reader.Remaining);
for (int i = 0; i < data.Length; i++)
{
data[i] ^= key[i % key.Length];
}
Logger.Verbose("Decrypted Muv Luv Dimensions file successfully !!");
MemoryStream ms = new();
ms.Write(data);
ms.Position = 0;
return new FileReader(reader.FullPath, ms);
}
public static FileReader DecryptPartyAnimals(FileReader reader)
{
Logger.Verbose($"Attempting to decrypt file {reader.FileName} with Party Animals encryption");
var table = new int[] { 0x8C, 0xE8, 0x93, 0xEB, 0xD1, 0xF0, 0x82, 0xCF, 0x9A, 0xBB, 0xEF, 0xB8, 0xC7, 0xA8, 0x8E, 0xDB, 0x96, 0x80, 0xAD, 0xC2, 0x86, 0xD8, 0x81, 0xFA, 0xE6, 0xAF, 0xD0, 0x9E, 0x95, 0xFE, 0xF6, 0x88, 0xF8, 0x85, 0xE4, 0xBC, 0xB6, 0xA4, 0xCB, 0xE3, 0xE0, 0x9F, 0xD3, 0xA7, 0xA3, 0xFF, 0x9C, 0x9D, 0xEE, 0xDE, 0xC9, 0xB0, 0xD5, 0xBE, 0x89, 0xF4, 0xBF, 0xED, 0xD9, 0xBA, 0xA5, 0xCE, 0x94, 0xC5, 0xCC, 0x90, 0xC8, 0xBD, 0x92, 0xB7, 0xF7, 0x97, 0x9B, 0xAB, 0xB4, 0xE9, 0xA6, 0xAC, 0xA9, 0xB2, 0xC1, 0xE5, 0xA1, 0xA0, 0xC4, 0xDC, 0xEC, 0xFD, 0xC0, 0xF3, 0xD2, 0xB3, 0x98, 0x8B, 0xD6, 0xB5, 0xE7, 0xAE, 0xC3, 0xE1, 0xB1, 0xF5, 0xA2, 0xE2, 0xF2, 0xAA, 0xF9, 0x99, 0xD4, 0x84, 0xFC, 0x8D, 0xF1, 0xDF, 0xB9, 0xD7, 0xDA, 0x91, 0xCA, 0x83, 0xEA, 0x8F, 0xCD, 0xDD, 0xC6, 0x87, 0xFB, 0x8A };
var name = Path.GetFileNameWithoutExtension(reader.FileName);
var nameBytes = Encoding.UTF8.GetBytes(name);
var key = (byte)(0x7C ^ nameBytes.Aggregate((a, b) => (byte)(a ^ b)));
var pos = table[nameBytes.Aggregate((a, b) => (byte)(a + b)) % table.Length];
var data = reader.ReadBytes((int)reader.Remaining);
for (int i = pos; i < data.Length; i++)
{
data[i] ^= (byte)(key ^ (i / 8) + 1);
}
Logger.Verbose("Decrypted Party Animals file successfully !!");
MemoryStream ms = new();
ms.Write(data);
ms.Position = 0;
return new FileReader(reader.FullPath, ms);
}
public static FileReader DecryptLoveAndDeepspace(FileReader reader)
{
Logger.Verbose($"Attempting to decrypt file {reader.FileName} with Love And Deepspace encryption");
var vector = new byte[] { 0x35, 0x6B, 0x05, 0x00 };
var originalHeader = new byte[] { 0x55, 0x6E, 0x69, 0x74, 0x79, 0x46, 0x53, 0x00, 0x00, 0x00, 0x00, 0x07, 0x35, 0x2E, 0x78, 0x2E };
var seed = reader.ReadBytes(0x10);
for (int i = 0; i < seed.Length; i++)
{
var b = (byte)(seed[i] ^ originalHeader[i] ^ vector[0]);
seed[i] = b != originalHeader[i] ? b : originalHeader[i];
}
var key = new byte[0x40];
for (int i = 0; i < vector.Length; i++)
{
for (int j = 0; j < seed.Length; j++)
{
var offset = i * 0x10;
key[offset + j] = (byte)(seed[j] ^ vector[i]);
}
}
reader.Position = 0;
var data = reader.ReadBytes((int)reader.Remaining);
for (int i = 0; i < data.Length; i++)
{
data[i] ^= key[i % key.Length];
}
Logger.Verbose("Decrypted Love And Deepspace file successfully !!");
MemoryStream ms = new();
ms.Write(data);
ms.Position = 0;
return new FileReader(reader.FullPath, ms);
}
public static FileReader DecryptSchoolGirlStrikers(FileReader reader)
{
Logger.Verbose($"Attempting to decrypt file {reader.FileName} with School Girl Strikers encryption");
var data = reader.ReadBytes((int)reader.Remaining);
byte key = 0xFF;
var stride = data.Length % 7 + 3;
for (int i = 1; i < data.Length; i++)
{
if (i % stride != 0)
{
data[i] ^= key;
}
else
{
key = (byte)~key;
}
}
Logger.Verbose("Decrypted School Girl Strikers file successfully !!");
MemoryStream ms = new();
ms.Write(data);
ms.Position = 0;
return new FileReader(reader.FullPath, ms);
}
}
}