public ResourceEntry(EndianIO io)
{
Unknown1 = io.ReadUInt32();
Unknown2 = io.ReadUInt32();
ResourceInformation = io.ReadUInt64();
}
/// <summary>
/// Function verifies the hashes stored in the header of the pkg file. (Does not verify the RSA Signature at POSITION: 0x800)
/// </summary>
private void Verify(EndianIO io)
{
byte[] hash;
//verify the resource entry table
io.Position = 0xB4;
uint entryCount = io.ReadUInt32();
uint entryTableLocation = io.ReadUInt32();
hash = io.ReadByteArray(0x14);
io.Position = entryTableLocation;
if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(entryCount * 0x10)), hash))
{
throw new Exception("Failed to verify the entry table hash in the pkg file.");
}
//verify the data block table
io.Position = 0xD0;
uint blockCount = io.ReadUInt32();
uint blockTableLocation = io.ReadUInt32();
hash = io.ReadByteArray(0x14);
io.Position = blockTableLocation;
if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(blockCount * 0x20)), hash))
{
throw new Exception("Failed to verify the block table hash in the pkg file.");
}
// verify the symbol table
io.Position = 0xEC;
uint symbolCount = io.ReadUInt32();
uint symbolTableLocation = io.ReadUInt32();
hash = io.ReadByteArray(0x14);
io.Position = symbolTableLocation;
if (!Security.ArrayEquals(Security.SHA1(io.ReadByteArray(symbolCount * 0x44)), hash))
{
throw new Exception("Failed to verify the symbol table hash in the pkg file.");
}
}
