Power Vision Tuner License: A Comprehensive Overview

The PowerVision tuner license has been a topic of interest among enthusiasts and hackers alike. In this article, we will delve into the details of the license verification function and explore ways to bypass it.

As we discovered during our analysis, the cmd field in the license file can contain multiple functions beyond VIN locking. This raised concerns about potential abuse and exploitation of these functions. Furthermore, we found that there are several ways to forge a license beyond simply changing the VIN.

The license verification function involves hashing the file and performing a memcmp on the resulting hash with the one obtained using decryption. To verify the signature, PowerVision stores the public key in an encrypted database. This contains the SHA1 of the XML file, encrypted with Dynojet's private key. The signature is intended to prevent exactly this type of tampering.

The cmd part of the license file contains the command VL, which indicates the VIN to which it is coupled. Controlling the value of this field provides the ultimate jackpot, as it enables forging licenses for arbitrary VINs.

In this article, we will explore the different ways to bypass the licensing system and achieve our primary goal of using the PowerVision without a valid license. We will also discuss the implications of these findings and provide guidance on how to implement them responsibly.

The PowerVision tuner license is an essential component of the Dynojet PowerVision 1, but it can also be vulnerable to exploitation. By understanding the license verification function and its limitations, we can explore ways to bypass it and achieve our primary goal. This article aims to provide a comprehensive overview of the PowerVision tuner license and its potential vulnerabilities.

References

* Harley-Davidson VINs: 1HD1FC413AB618635 (2010 FLHTCU), 1HD1KED10HB661265 (2017 FLHTK/ultra limited)

* Communication protocol on USB link: Part 2

* Decrypted and retrieved firmware of the programmer: Part 1

Disclaimer

This article is aimed at educational purposes only. We do not endorse or encourage software piracy in any way.

Power vision tuner license