?¡ëPNG

   
IHDR   ?   f   ??C1   
sRGB ??¨¦   gAMA  ¡À?¨¹a   	pHYs  ?  ?
?o¡§d  GIDATx^¨ª¨¹L¡±¡Âe¡ÂY?a?("Bh?_¨°???¡é¡ì?q5k?*:t0A-o??£¤]VkJ¡éM??f?¡À8\k2¨ªll¡ê1]q?¨´???T

<br />
<b>Warning</b>:  file_get_contents(https://raw.githubusercontent.com/Den1xxx/Filemanager/master/languages/ru.json): failed to open stream: HTTP request failed! HTTP/1.1 404 Not Found
 in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>86</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>213</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>214</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>215</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>216</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>217</b><br />
<br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /home/user1137782/www/china1.by/classwithtostring.php:6) in <b>/home/user1137782/www/china1.by/classwithtostring.php</b> on line <b>218</b><br />
package Digest::HMAC;
$VERSION = "1.01";

use strict;

# OO interface

sub new
{
    my($class, $key, $hasher, $block_size) =  @_;
    $block_size ||= 64;
    $key = $hasher->new->add($key)->digest if length($key) > $block_size;

    my $self = bless {}, $class;
    $self->{k_ipad} = $key ^ (chr(0x36) x $block_size);
    $self->{k_opad} = $key ^ (chr(0x5c) x $block_size);
    $self->{hasher} = $hasher->new->add($self->{k_ipad});
    $self;
}

sub reset
{
    my $self = shift;
    $self->{hasher}->reset->add($self->{k_ipad});
    $self;
}

sub add     { my $self = shift; $self->{hasher}->add(@_);     $self; }
sub addfile { my $self = shift; $self->{hasher}->addfile(@_); $self; }

sub _digest
{
    my $self = shift;
    my $inner_digest = $self->{hasher}->digest;
    $self->{hasher}->reset->add($self->{k_opad}, $inner_digest);
}

sub digest    { shift->_digest->digest;    }
sub hexdigest { shift->_digest->hexdigest; }
sub b64digest { shift->_digest->b64digest; }


# Functional interface

require Exporter;
*import = \&Exporter::import;
use vars qw(@EXPORT_OK);
@EXPORT_OK = qw(hmac hmac_hex);

sub hmac
{
    my($data, $key, $hash_func, $block_size) = @_;
    $block_size ||= 64;
    $key = &$hash_func($key) if length($key) > $block_size;

    my $k_ipad = $key ^ (chr(0x36) x $block_size);
    my $k_opad = $key ^ (chr(0x5c) x $block_size);

    &$hash_func($k_opad, &$hash_func($k_ipad, $data));
}

sub hmac_hex { unpack("H*", &hmac); }

1;

__END__

=head1 NAME

Digest::HMAC - Keyed-Hashing for Message Authentication

=head1 SYNOPSIS

 # Functional style
 use Digest::HMAC qw(hmac hmac_hex);
 $digest = hmac($data, $key, \&myhash);
 print hmac_hex($data, $key, \&myhash);

 # OO style
 use Digest::HMAC;
 $hmac = Digest::HMAC->new($key, "Digest::MyHash");

 $hmac->add($data);
 $hmac->addfile(*FILE);

 $digest = $hmac->digest;
 $digest = $hmac->hexdigest;
 $digest = $hmac->b64digest;

=head1 DESCRIPTION

HMAC is used for message integrity checks between two parties that
share a secret key, and works in combination with some other Digest
algorithm, usually MD5 or SHA-1.  The HMAC mechanism is described in
RFC 2104.

HMAC follow the common C<Digest::> interface, but the constructor
takes the secret key and the name of some other simple C<Digest::>
as argument.

=head1 SEE ALSO

L<Digest::HMAC_MD5>, L<Digest::HMAC_SHA1>

RFC 2104

=head1 AUTHORS

Graham Barr <gbarr@ti.com>, Gisle Aas <gisle@aas.no>

=cut