Question: Using dongle emulator for new version of a programme with cert files

[Turkuaz]

Hi all,
I have a programme (ver 6) and hasp hl emulator for it.
I want to use my emulator for ver 7 too, but it says "No V7 Cert".
There are 2 binary files with pcert and scert extensions inside Certs directory.
User manual says dongle for old version can be used with suitable cert files. When I stop dongle emulator service it gives no dongle error, this means dongle emulator is accepted. But cert files must be updated.


I have some degree of reverse engineering knowledge and experience but very little with programmes which use certificates.

The programme is packed but I unpacked it manually, it runs properly now.

I guess the cert files contain some data encrypted with a private key. And these information is decrypted with a public key and checked by the programme . So I think i must extract these datas and modify accordingly for new version. Then produce my public/private key pairs in order to encrypt modified data, and replace the original public key with mine.

My question is how to find public key and decrypted data? Any advice or hints which can help me?

Thanks in advance