Replace Class::Accessor::Fast with Object::Tiny

[authen-passphrase-scrypt.git] / lib / Authen / Passphrase / Scrypt.pm

diff --git a/lib/Authen/Passphrase/Scrypt.pm b/lib/Authen/Passphrase/Scrypt.pm
index 213d4136f9242c14ed6e2e3f9f39b99aa625d452..fabc7aeadb41418fa90872b1b8cbe83bc4979e5c 100644 (file)
--- a/lib/Authen/Passphrase/Scrypt.pm
+++ b/lib/Authen/Passphrase/Scrypt.pm
@@ -5,7 +5,7 @@ use strict;
 use warnings;
 use Carp;
 
-use parent qw/Exporter Authen::Passphrase Class::Accessor::Fast/;
+use parent qw/Exporter Authen::Passphrase/;
 
 our @EXPORT = qw/crypto_scrypt/;
 our @EXPORT_OK = @EXPORT;
@@ -18,7 +18,7 @@ use MIME::Base64;
 require XSLoader;
 XSLoader::load('Authen::Passphrase::Scrypt', $VERSION);
 
-__PACKAGE__->mk_accessors(qw/data logN r p salt hmac passphrase/);
+use Object::Tiny qw/data logN r p salt hmac passphrase/;
 
 sub compute_hash {
        my ($self, $passphrase) = @_;
@@ -36,19 +36,21 @@ sub truncate_hash {
 
 sub new {
        my ($class, @args) = @_;
-       my $self = $class->SUPER::new(@args);
+       if ('HASH' eq ref $args[0]) { # we were given a hash
+               @args = %{$args[0]}
+       }
+       unshift @args, logN => 14, r => 16, p => 1; # default values
+       my %args = @args;
+       $args{salt} = rand_bits 256 unless exists $args{salt};
+       my $self = bless \%args, $class;
 
-       $self->logN(14) unless defined $self->logN;
-       $self->r(16) unless defined $self->r;
-       $self->p(1) unless defined $self->p;
        croak "passphrase not set" unless defined $self->passphrase;
-       $self->salt(rand_bits 256) unless $self->salt;
 
        my $data = "scrypt\x00" . pack 'CNNa32',
          $self->logN, $self->r, $self->p, $self->salt;
        $data .= truncated_sha256 $data;
-       $self->data($data);
-       $self->hmac(hmac_sha256 $self->data, truncate_hash $self->compute_hash($self->passphrase));
+       $self->{data} = $data;
+       $self->{hmac} = hmac_sha256 $self->data, truncate_hash $self->compute_hash($self->passphrase);
        $self
 }
 
@@ -60,7 +62,7 @@ sub from_rfc2307 {
          unpack 'Z7CNNa32a16a32', $data;
        croak 'Invalid Scrypt hash: should start with "scrypt"' unless $scrypt eq 'scrypt';
        croak 'Invalid Scrypt hash: bad checksum', unless $cksum eq truncated_sha256 (substr $data, 0, 48);
-       $class->SUPER::new({data => (substr $data, 0, 64), logN => $logN, r => $r, p => $p, salt => $salt, hmac => $hmac});
+       bless { data => (substr $data, 0, 64), logN => $logN, r => $r, p => $p, salt => $salt, hmac => $hmac }, $class;
 }
 
 sub match {