public EgsHdAsset(Stream stream)
{
_stream = stream;
_baseOffset = stream.Position;
_seed = stream.ReadBytes(0x10);
_key = EgsEncryption.GenerateKey(_seed, PASS_COUNT);
_header = BinaryMapping.ReadObject <Header>(new MemoryStream(_seed));
var entries = Enumerable
.Range(0, _header.RemasteredAssetCount)
.Select(_ => BinaryMapping.ReadObject <RemasteredEntry>(stream))
.ToList();
_entries = entries.ToDictionary(x => x.Name, x => x);
_dataOffset = stream.Position;
Assets = entries.Select(x => x.Name).ToArray();
ReadData();
foreach (var remasteredAssetName in Assets)
{
ReadRemasteredAsset(remasteredAssetName);
}
stream.SetPosition(_dataOffset);
}
public static byte[] Encrypt(byte[] data, byte[] seed)
{
const int PassCount = 10;
var key = EgsEncryption.GenerateKey(seed, PassCount);
for (var i = 0; i < Math.Min(data.Length, 0x100); i += 0x10)
{
EgsEncryption.EncryptChunk(key, data, i, PassCount);
}
return(data);
}
public EgsHdAsset(Stream stream)
{
_stream = stream;
_baseOffset = stream.Position;
var seed = stream.ReadBytes(0x10);
_key = EgsEncryption.GenerateKey(seed, PassCount);
Key = _key;
_header = BinaryMapping.ReadObject <Header>(new MemoryStream(seed));
var entries = Enumerable
.Range(0, _header.RemasteredAssetCount)
.Select(_ => BinaryMapping.ReadObject <RemasteredEntry>(stream))
.ToList();
_entries = entries.ToDictionary(x => x.Name, x => x);
_dataOffset = stream.Position;
Assets = entries.Select(x => x.Name).ToArray();
}
