Crypt::Stream::ChaCha(3) | User Contributed Perl Documentation | Crypt::Stream::ChaCha(3) |
NAME
Crypt::Stream::ChaCha - Stream cipher ChaCha
SYNOPSIS
use Crypt::Stream::ChaCha; # encrypt $key = "1234567890123456"; $iv = "123456789012"; $stream = Crypt::Stream::ChaCha->new($key, $iv); $ct = $stream->crypt("plain message"); # decrypt $key = "1234567890123456"; $iv = "123456789012"; $stream = Crypt::Stream::ChaCha->new($key, $iv); $pt = $stream->crypt($ct);
DESCRIPTION
Provides an interface to the ChaCha stream cipher.
METHODS
new
$stream = Crypt::Stream::ChaCha->new($key, $iv); #or $stream = Crypt::Stream::ChaCha->new($key, $iv, $counter, $rounds); # $key .. 32 or 16 bytes # $iv .. 8 or 12 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
- Crypt::Stream::RC4, Crypt::Stream::Sober128, Crypt::Stream::Salsa20, Crypt::Stream::Sosemanuk
- https://tools.ietf.org/html/rfc7539
2024-10-20 | perl v5.40.0 |