The blocksize for Rijndael is 16 bytes (128 bits), although the algorithm actually supports any blocksize that is any multiple of our bytes. 128 bits, is however, the AES-specified block size, so this is all we support.

##</code><code>##

Create a new Crypt::Rijndael cipher object with the given key (which must be 128, 192 or 256 bits long). The additional $mode argument is the encryption mode, either MODE_ECB (electronic codebook mode, the default), MODE_CBC (cipher block chaining, the same that Crypt::CBC does), MODE_CFB (128-bit cipher feedback), MODE_OFB (128-bit output feedback), or MODE_CTR (counter mode).

##</code><code>##

#!/usr/bin/perl
use DBI;
use strict;
use warnings;
use Data::Dumper;
use Config::Simple;

$|=1; #flush every time the program

my $path = 'conf.ini';
my %config = ();
my $checkExist = "";

sub mysql {
    Config::Simple->import_from("".$path."", \%config)
	or die Config::Simple->error();

    my $dbh = DBI->connect("dbi:mysql::".$config{'MySQL.host'}.":".$config{'MySQL.port'}."", 
			   "".$config{'MySQL.user'}."",
			   "".$config{'MySQL.pass'}."",
			   { 'PrintError' => 1, 'RaiseError' => 1 , 'AutoInactiveDestroy' => 1 } 
	) or die "Could not connect to ". $config{'MySQL.host'} .": ". $DBI::errstr ."\n";

    my $databases = $dbh->do("SHOW DATABASES LIKE '".$config{'MySQL.db'}."'")
	or die "Error: " .dbh->errstr. "\n";

    if ($databases eq 1) {
	printf "Database: ". $config{'MySQL.db'} ." exists not creating: ". $config{'MySQL.db'} ."\n";
    }
    else {
	printf "Database: ". $config{'MySQL.db'} ." does not exist creating: ". $config{'MySQL.db'} ."\n";

	$checkExist = $dbh->do("CREATE DATABASE IF NOT EXISTS `".$config{'MySQL.db'}."`")
	    or die "Could not create the: ".$config{'MySQL.db'}." error: ". $dbh->errstr ."\n";
    } # End of else

    $dbh->do("USE ".$config{'MySQL.db'}."")
	or die "Error: " .dbh->errstr. "\n";

    my $tables = $dbh->do("SHOW TABLES FROM `".$config{'MySQL.db'}."`
			  WHERE Tables_in_".$config{'MySQL.db'}." LIKE
			  '".$config{'MySQL.table'}."'")
	or die "Error: ".dbh->errstr. "\n";

    if ($tables eq 1) {
	printf "Table: ".$config{'MySQL.table'}." exists not creating: ".$config{'MySQL.table'}."\n";
    }
    else {
	printf "Table: ".$config{'MySQL.table'}." does not exist creating: ".$config{'MySQL.table'}."\n";

	$checkExist = $dbh->prepare("CREATE TABLE IF NOT EXISTS `".$config{'MySQL.table'}."` (
				    `id` int(11) NOT NULL AUTO_INCREMENT,
				    `UnixTime` int(11) NOT NULL,
				    `losses` int(11) NOT NULL,
				    PRIMARY KEY (`id`)
				    ) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;");

	if (!$checkExist->execute()) {
	    die "Error: ". $checkExist->errstr ."\n";
	}
    } # End of else

    $checkExist = $dbh->prepare("SELECT \@\@session.block_encryption_mode = 'aes-128-ecb';");

    if (!$checkExist->execute()) {
	die "Error: ". $checkExist->errstr ."\n";
    }

    my $range = 50;
    my $minimum = 100;

    my $random_number = int(rand($range)) + $minimum;
    my $time = time();

    my $losses = $time . ' ' . $random_number;

    $checkExist = $dbh->prepare("INSERT IGNORE INTO `".$config{'MySQL.table'}.
				"` (`UnixTime`, `losses`) VALUES
				('".$time."','".$random_number."') ");

    if (!$checkExist->execute()) {
	die "Error: ". $checkExist->errstr ."\n";
    }

    my $statement = "SELECT * FROM `".$config{'MySQL.table'}."` WHERE 1";

    my $hash_ref = $dbh->selectall_hashref($statement, 'id');

    $checkExist->finish();

    $dbh->disconnect()
	or warn "Error disconnecting: $DBI::errstr\n";

    return $hash_ref;

} # End of mysql sub

my $output_ref = mysql();

print Dumper($output_ref);

__DATA__

$ perl mysql.pl
Database: PerlMonks does not exist creating: PerlMonks
Table: Data does not exist creating: Data
$VAR1 = {
          '1' => {
                   'losses' => 128,
                   'UnixTime' => 1494975837,
                   'id' => 1
                 }
        };

##</code><code>##

[MySQL]
user=user
pass=password
host=localhost
port=3306
db=PerlMonks
table=Data