public SEEDEntry(SEEDEntry entry)
{
TitleID = entry.TitleID;
SEED = entry.SEED;
byte[] temp;
SHA256 sha256 = new SHA256Managed();
//Compute Checksum
temp = new byte[24];
Array.Copy(SEED, 0, temp, 0, 16);
Array.Copy(TitleID, 0, temp, 16, 8);
Checksum = BitConverter.ToUInt32(sha256.ComputeHash(temp), 0);
}
public SEEDEntry(SEEDEntry entry, byte[] oldKeyY)
{
TitleID = entry.TitleID;
SEED = entry.SEED;
KeyY = oldKeyY;
//Compute new KeyY
byte[] temp = new byte[32];
Array.Copy(oldKeyY, 0, temp, 0, 16);
Array.Copy(SEED, 0, temp, 16, 16);
SHA256 sha256 = new SHA256Managed();
Array.Copy(sha256.ComputeHash(temp), 0, KeyY, 0, 16);
}
public NCCHInfo(NCCH ncch, int PartitionIndex, Encoding encoding)
{
Entries = new List<NCCHInfoEntry>();
int Use7x = ncch.Header.Flags[3];
if ((ncch.Header.Flags[7] & 0x20) == 0x20)
{
if (!File.Exists("seedinfo.bin"))
throw new Exception("Cannot find seedinfo.bin.");
seedinfo = new SEEDinfo("seedinfo.bin");
for (int i = 0; i < seedinfo.Count; i++)
{
if (seedinfo.Entries[i].Checksum == ncch.Header.SEEDCheck)
{
byte[] KeyY = new byte[16];
Array.Copy(ncch.Header.NCCHHeaderSignature, 0, KeyY, 0, 16);
seedinfo.Entries[i] = new SEEDEntry(seedinfo.Entries[i], KeyY);
SEED = seedinfo.Entries[i];
break;
}
}
}
if (ncch.Header.ExtendedHeaderSize > 0)
{
Entries.Add(new NCCHInfoEntry(ncch, PartitionIndex, NcchSection.exheader, encoding, 0, "exheader"));
}
if (ncch.Header.ExeFSLength > 0)
{
Entries.Add(new NCCHInfoEntry(ncch, PartitionIndex, NcchSection.exefs, encoding, 0, "exefs_norm"));
if (Use7x == 1)
{
Entries.Add(new NCCHInfoEntry(ncch, PartitionIndex, NcchSection.exefs, encoding, Use7x, "exefs_7x"));
}
}
if (ncch.Header.RomFSLength > 0)
{
Entries.Add(new NCCHInfoEntry(ncch, PartitionIndex, NcchSection.romfs, encoding, Use7x, "romfs"));
}
}
public void FromStream(Stream stream)
{
BinaryReader reader = new BinaryReader(stream);
Magic = new string(reader.ReadChars(4));
if (Magic != "SEED")
throw new Exception("不是有效的seedinfo文件");
Count = reader.ReadInt32();
for (int i = 0; i < Count; i++)
{
Entries.Add(new SEEDEntry(reader.ReadBytes(8)));
}
for (int i = 0; i < Count; i++)
{
Entries[i].SEED = reader.ReadBytes(16);
}
for (int i = 0; i < Count; i++)
{
Entries[i] = new SEEDEntry(Entries[i]);
}
}
