Crypt::Stream::RC4(3)                      User Contributed Perl Documentation


NAME
       Crypt::Stream::RC4 - Stream cipher RC4

SYNOPSIS
          use Crypt::Stream::RC4;

          # encrypt
          $key = "1234567890123456";
          $stream = Crypt::Stream::RC4->new($key);
          $ct = $stream->crypt("plain message");

          # decrypt
          $key = "1234567890123456";
          $stream = Crypt::Stream::RC4->new($key);
          $pt = $stream->crypt($ct);

DESCRIPTION
       Provides an interface to the RC4 stream cipher.

METHODS
   new
        $stream = Crypt::Stream::RC4->new($key);
        # $key .. length 5-256 bytes (40 - 2048 bits)

   crypt
        $ciphertext = $stream->crypt($plaintext);
        #or
        $plaintext = $stream->crypt($ciphertext);

   keystream
        $random_key = $stream->keystream($length);

   clone
        $stream->clone();

SEE ALSO
       o   Crypt::Stream::ChaCha, Crypt::Stream::Sober128,
           Crypt::Stream::Salsa20, Crypt::Stream::Sosemanuk

       o   <https://en.wikipedia.org/wiki/RC4_cipher>

perl v5.42.0                      2025-07-13             Crypt::Stream::RC4(3)