Yea, I don't think I'm gonna mess with this one....... Google translation...


Everything is about a RSA-Smartcard.

- There is an Operating System on this Card.
- This accepts only RSA-crypted applications. These Applications are protected by a checksum. This checksum is also crypted by an RSA key.
- Known is the Key-pair for Applications, but NOT for the checksum.
- There is no support anymore for this Smartcard.
- We are trying to break the RSA-key for the checksum by Brute-forcing.

Goal:

- With the Key we can upload own applications to the Smartcard or upload a new "Operating System"
- The key will be published. The Project origins from an idea in a forum.

* The Modulus is 512bit long.
* public exponent is known.

Second goal (for me an all interested people):

-Understand RSA, primes and develop an effective Bruteforcer.

I am a Computer Sience student. Greets - Darkscout