Crypt::RC4::XS(3)

💖 Crypt::RC4::XS — bestie edition 💖

okay so real talk, this is the manual page for Crypt::RC4::XS, which is a Perl implementation of the RC4 encryption algorithm ✨ it lives in the User Contributed Perl Documentation section, so like, it's one of us fr fr 💅

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🌸 NAME 🌸

Crypt::RC4::XS — a Perl implementation of the RC4 encryption algorithm 💖

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🦋 SYNOPSIS 🦋

  use Crypt::RC4::XS;
  # Functional Style
  my $encrypted = RC4($passphrase, $plaintext);
  my $decrypted = RC4($passphrase, $encrypted);

  # OO Style
  my $cipher = Crypt::RC4->new($passphrase);
  my $encrypted = $cipher->RC4($plain_text);

like, two whole vibes to pick from bestie — the functional style or the OO style, whichever one is giving more main character energy for ur codebase 👑

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✨ DESCRIPTION ✨

so this module is an XS implementation of the RC4 algorithm, which was developed by RSA Security, Inc. 💜 and here's the description straight from the Wikipedia website, no cap:

In cryptography, RC4 (also known as ARC4 or ARCFOUR meaning Alleged RC4, see below) is the most widely-used software stream cipher and is used in popular protocols such as Secure Sockets Layer (SSL) (to protect Internet traffic) and WEP (to secure wireless networks). While remarkable for its simplicity and speed in software, RC4 is vulnerable to attacks when the beginning of the output keystream is not discarded, or a single keystream is used twice; some ways of using RC4 can lead to very insecure cryptosystems such as WEP.

ok so the important part, and I need u to actually read this bestie: RC4 is vulnerable to attacks if u don't discard the beginning of the output keystream, or if u use a single keystream twice. and some ways of using RC4 can lead to very insecure cryptosystems, WEP being the iconic example 💀 like, this is not a drill, this is in the actual description.

🎀 EXPORT 🎀

• RC4()

like yeah that's the one function it exports, simple, clean, iconic 🫶

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🌈 SEE ALSO 🌈

• Crypt::RC4 — the cousin module, go say hi 👋

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👑 AUTHOR 👑

Hiroyuki OYAMA, <oyama@module.jp> — absolute legend, thank u for ur service 🫡💖

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💜 LICENSE 💜

This library is free software; u can redistribute it and/or modify it under the same terms as Perl itself — either Perl version 5.8.8 or, at ur option, any later version of Perl 5 u happen to have lying around 🌸 so like, go wild (responsibly).

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that's the whole page bestie, u ate that 💅✨ this was perl v5.42.0, dated 2025-07-25, filed under Crypt::RC4::XS(3) — stay encrypted, stay slay 🦋💖