release Upgrading libserverkey For OpenSSL v1.0+

[Black_Rose©]

Hello everyone,

This document outlines a straightforward upgrade that enables the building of libserverkey for OpenSSL version 1.0 or higher. The changes here work smoothly with OpenSSL v1.0.4d (Win32 build).

Modifications Required in RSACrypto.cpp

In the Function RSACrypto::PublicKey::PublicKey

Replace the existing code:

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In the Function RSACrypto::PublicKey::Alloc

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In the Function RSACrypto::PublicKey::Copy

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In the Function RSACrypto::PrivateKey::Alloc

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In the Function RSACrypto::PrintKey(k, n, e)

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Then replace:

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In the Function RSACrypto::PrintKey(k, n, e, d)

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Finally, replace:

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Explanation of Changes

1. These conditional directives ensure compatibility with older versions of OpenSSL.
2. OpenSSL 1.0 does not expose the rsa_ structure directly; hence, we must leverage OpenSSL’s API to extract the necessary information.

Understanding the Purpose of libserverkey

You might wonder about the function of libserverkey. Historically, there was a concern regarding the leakage of game files, which likely led to the implementation of this feature.

Libserverkey contains both a public and a private RSA key to your core, helping to verify if the current machine is authorized to use that core. While this feature may not be critical and can be bypassed with the right expertise, it can be safely removed from the game if needed.

I plan to document this protection in the wiki for further clarification. Until then, I hope this overview provides valuable insight into this library.