note 102537 added to book.mcrypt
| From: | ysfbauchi at yahoo dot com | Date: | Sun, 20 Feb 2011 06:25:37 +0000 |
| Subject: | note 102537 added to book.mcrypt | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-177151@lists.php.net to get a copy of this message | ||
//This is a des, 3des, aes and gost encryption program i wrote using php for my assignment
<?php
if (isset($_REQUEST['select'])) {
$choice = $_POST['select'];
$mykey = $_POST['mykey'];
$msg = $_POST['plain'];
} else {
die("algorithm not selected");
}
if ($msg == ''){
die("Please enter a text to encrypt! ");
}
if ($mykey == ''){
die("Please enter a key! ");
}
function algorithmdetails($cipher)
{
$chiphername = mcrypt_enc_get_algorithms_name($cipher);
$blocksize = mcrypt_enc_get_block_size($cipher);
$mykeysize = mcrypt_enc_get_supported_key_sizes($cipher);
echo "<p><b>Cipher Name :</b> $chiphername";
echo "<p><b>Block size :</b> $blocksize bytes";
echo "<p><b>Key size :</b> ";
foreach ($mykeysize as $value)
{
echo "$value bytes ";
}unset($value);
}
function encryptnow($thecipher, $thekey, $themsg)
{
$iv = mcrypt_create_iv (mcrypt_enc_get_iv_size($thecipher), MCRYPT_DEV_RANDOM);
mcrypt_generic_init($thecipher, $thekey, $iv);
$encrypted_text = mcrypt_generic($thecipher, $themsg);
echo "<html><hr size='2' ></html>";
echo "<P><P><b>Plain Text : </b>";
echo($themsg);
echo "<p><b>Cipher Text : </b> ";
echo "$encrypted_text";
mcrypt_generic_deinit($thecipher);
mcrypt_module_close($thecipher);
die();
}
if ($choice == '1'){
$cipher = mcrypt_module_open (MCRYPT_DES, '', 'ecb', '');
algorithmdetails($cipher);
encryptnow($cipher, $mykey, $msg);
}elseif ($choice == '2'){
$cipher = mcrypt_module_open (MCRYPT_3DES, '', 'ecb', '');
algorithmdetails($cipher);
encryptnow($cipher, $mykey, $msg);
}elseif ($choice == '3'){
$cipher = mcrypt_module_open (MCRYPT_RIJNDAEL_128, '', 'ecb', '');
algorithmdetails($cipher);
encryptnow($cipher, $mykey, $msg);
}elseif ($choice == '4'){
$cipher = mcrypt_module_open (MCRYPT_GOST, '', 'ecb', '');
algorithmdetails($cipher);
encryptnow($cipher, $mykey, $msg);
}else {
die("Please choose an algorithm!");
}
?>
----
Server IP: 69.147.83.197
Probable Submitter: 113.23.132.196
----
Manual Page -- http://www.php.net/manual/en/book.mcrypt.php
Edit -- https://master.php.net/note/edit/102537
Del: integrated -- https://master.php.net/note/delete/102537/integrated
Del: useless -- https://master.php.net/note/delete/102537/useless
Del: bad code -- https://master.php.net/note/delete/102537/bad+code
Del: spam -- https://master.php.net/note/delete/102537/spam
Del: non-english -- https://master.php.net/note/delete/102537/non-english
Del: in docs -- https://master.php.net/note/delete/102537/in+docs
Del: other reasons-- https://master.php.net/note/delete/102537
Reject -- https://master.php.net/note/reject/102537
Search -- https://master.php.net/manage/user-notes.php