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Crypt::Stream::Salsa20(3)



NAME

       Crypt::Stream::Salsa20 - Stream cipher Salsa20


SYNOPSIS

          use Crypt::Stream::Salsa20;

          # encrypt
          $key = "1234567890123456";
          $iv  = "12345678";
          $stream = Crypt::Stream::Salsa20->new($key, $iv);
          $ct = $stream->crypt("plain message");

          # decrypt
          $key = "1234567890123456";
          $iv  = "12345678";
          $stream = Crypt::Stream::Salsa20->new($key, $iv);
          $pt = $stream->crypt($ct);


DESCRIPTION

       Provides an interface to the Salsa20 stream cipher.


METHODS

   new
        $stream = Crypt::Stream::Salsa20->new($key, $iv);
        #or
        $stream = Crypt::Stream::Salsa20->new($key, $iv, $counter, $rounds);

        # $key     .. 32 or 16 bytes
        # $iv      .. 8 bytes
        # $counter .. initial counter value (DEFAULT: 0)
        # $rounds  .. rounds (DEFAULT: 20)

   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(3), Crypt::Stream::RC4(3),
           Crypt::Stream::Sober128(3), Crypt::Stream::Sosemanuk(3)



perl v5.30.3                      2022-01-07         Crypt::Stream::Salsa20(3)

cryptx 0.76.0 - Generated Sun Feb 20 06:27:53 CST 2022
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