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 / 
CryptX-0.085
River stage three • 72 direct dependents • 283 total dependents
/ Crypt::Stream::Salsa20

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