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package Crypt::Stream::Salsa20; use strict; use warnings; our $VERSION = '0.087'; use CryptX; 1; =pod =head1 NAME Crypt::Stream::Salsa20 - Stream cipher Salsa20 =head1 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); =head1 DESCRIPTION Provides an interface to the Salsa20 stream cipher. =head1 METHODS =head2 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) =head2 crypt $ciphertext = $stream->crypt($plaintext); #or $plaintext = $stream->crypt($ciphertext); =head2 keystream $random_key = $stream->keystream($length); =head2 clone $stream->clone(); =head1 SEE ALSO =over =item * L<Crypt::Stream::ChaCha>, L<Crypt::Stream::RC4>, L<Crypt::Stream::Sober128>, L<Crypt::Stream::Sosemanuk> =back =cut
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