Pia Reverse Engineering

This page contains some reverse engineering notes for the Pia library.

A list of games with Pia and function names can be found here.

LDN Passphrase

A list of passphrases can be found here.

The LDN passphrase is passed to the Pia library through nn::pia::local::LdnCreateSessionSetting::SetWirelessCryptoKey or nn::pia::local::LdnJoinSessionSetting::SetWirelessCryptoKey.

When ENL is used, the passphrase is configured through enl::PiaMatchmakeCondition::setPassPhrase.

Pia Game Key

A list of game keys can be found here.

The game key is passed to the Pia library through nn::pia::session::Session::Startup. A good strategy to find the game key is to look for references to nn::pia::common::CryptoSetting.

When ENL is used, the game key is created with enl::PiaMatchmakeCondition::makeRandomCryptoKey. Note that this function is inlined in recent games, which makes it a bit more difficult to find.