public bool VerifyIntegrity(bool verbose, bool green)
{
bool valid = true;
byte[] decryptedSignature;
if (green)
{
decryptedSignature = PublicKey.Decrypt(ImageHeader.DigitalSignature);
}
else
{
decryptedSignature = PublicKey.DecryptRed(ImageHeader.DigitalSignature);
}
if (verbose)
{
Console.WriteLine("Checking digital signature...");
}
// Check the digital signature
// TODO: We must also check the padding. The Xbox checks this too!
if (decryptedSignature.Take(20).ToArray().SequenceEqual(MetaHash))
{
if (verbose)
{
Console.WriteLine("\n\tValid\n");
}
}
else
{
valid = false;
if (verbose)
{
Console.WriteLine("\n\tInvalid\n");
}
}
// Verify that the section hashes in the section header table match the data in the xbe
// The section header table hashes can not be modified because they have already been validated with the digital signature
// As far as I can tell, this is the order in which the xbox validates the xbe, contrary to what is found here: http://xboxdevwiki.net/Kernel/XboxSignatureKey
if (verbose)
{
Console.WriteLine("Checking section hashes...");
}
foreach (SectionHeader section in SectionHeaders)
{
if (section.VerifyDigest())
{
if (verbose)
{
Console.WriteLine(section.SectionName + ":\n\tValid\n");
}
}
else
{
valid = false;
if (verbose)
{
Console.WriteLine(section.SectionName + ":\n\tInvalid\n");
}
}
}
if (verbose)
{
if (valid)
{
Console.WriteLine("\nXBE is NOT valid");
}
else
{
Console.WriteLine("\nXBE is valid");
}
}
return(valid);
}
