require_once('library/ASNValue.class.php');
require_once('library/asn1.php');
+// supported algorithms are 'sha256', 'sha1'
-function rsa_sign($data,$key) {
+function rsa_sign($data,$key,$alg = 'sha256') {
$sig = '';
- if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
- openssl_sign($data,$sig,$key,'sha256');
+ if (version_compare(PHP_VERSION, '5.3.0', '>=') || $alg === 'sha1') {
+ openssl_sign($data,$sig,$key,(($alg == 'sha1') ? OPENSSL_ALGO_SHA1 : $alg));
}
else {
if(strlen($key) < 1024 || extension_loaded('gmp')) {
require_once('library/phpsec/Crypt/RSA.php');
$rsa = new CRYPT_RSA();
$rsa->signatureMode = CRYPT_RSA_SIGNATURE_PKCS1;
- $rsa->setHash('sha256');
+ $rsa->setHash($alg);
$rsa->loadKey($key);
$sig = $rsa->sign($data);
}
return $sig;
}
-function rsa_verify($data,$sig,$key) {
+function rsa_verify($data,$sig,$key,$alg = 'sha256') {
- if (version_compare(PHP_VERSION, '5.3.0', '>=')) {
- $verify = openssl_verify($data,$sig,$key,'sha256');
+ if (version_compare(PHP_VERSION, '5.3.0', '>=') || $alg === 'sha1') {
+ $verify = openssl_verify($data,$sig,$key,(($alg == 'sha1') ? OPENSSL_ALGO_SHA1 : $alg));
}
else {
if(strlen($key) <= 300 || extension_loaded('gmp')) {
require_once('library/phpsec/Crypt/RSA.php');
$rsa = new CRYPT_RSA();
$rsa->signatureMode = CRYPT_RSA_SIGNATURE_PKCS1;
- $rsa->setHash('sha256');
+ $rsa->setHash($alg);
$rsa->loadKey($key);
$verify = $rsa->verify($data,$sig);
}
//Encode:
$Der = base64_encode($Der);
//Split lines:
- $lines = str_split($Der, 65);
+ $lines = str_split($Der, 64);
$body = implode("\n", $lines);
//Get title:
$title = 'RSA PUBLIC KEY';
pemtome($pubkey,$m,$e);
return 'RSA' . '.' . base64url_encode($m,true) . '.' . base64url_encode($e,true) ;
}
+
+
+
+if(! function_exists('aes_decrypt')) {
+// DEPRECATED IN 3.4.1
+function aes_decrypt($val,$ky)
+{
+ $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+ for($a=0;$a<strlen($ky);$a++)
+ $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
+ $mode = MCRYPT_MODE_ECB;
+ $enc = MCRYPT_RIJNDAEL_128;
+ $dec = @mcrypt_decrypt($enc, $key, $val, $mode, @mcrypt_create_iv( @mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM ) );
+ return rtrim($dec,(( ord(substr($dec,strlen($dec)-1,1))>=0 and ord(substr($dec, strlen($dec)-1,1))<=16)? chr(ord( substr($dec,strlen($dec)-1,1))):null));
+}}
+
+
+if(! function_exists('aes_encrypt')) {
+// DEPRECATED IN 3.4.1
+function aes_encrypt($val,$ky)
+{
+ $key="\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
+ for($a=0;$a<strlen($ky);$a++)
+ $key[$a%16]=chr(ord($key[$a%16]) ^ ord($ky[$a]));
+ $mode=MCRYPT_MODE_ECB;
+ $enc=MCRYPT_RIJNDAEL_128;
+ $val=str_pad($val, (16*(floor(strlen($val) / 16)+(strlen($val) % 16==0?2:1))), chr(16-(strlen($val) % 16)));
+ return mcrypt_encrypt($enc, $key, $val, $mode, mcrypt_create_iv( mcrypt_get_iv_size($enc, $mode), MCRYPT_DEV_URANDOM));
+}}
+
+function pkcs5_pad ($text, $blocksize)
+{
+ $pad = $blocksize - (strlen($text) % $blocksize);
+ return $text . str_repeat(chr($pad), $pad);
+}
+
+function pkcs5_unpad($text)
+{
+ $pad = ord($text{strlen($text)-1});
+ if ($pad > strlen($text)) return false;
+ if (strspn($text, chr($pad), strlen($text) - $pad) != $pad) return false;
+ return substr($text, 0, -1 * $pad);
+}
+
+
+function new_keypair($bits) {
+
+ $openssl_options = array(
+ 'digest_alg' => 'sha1',
+ 'private_key_bits' => $bits,
+ 'encrypt_key' => false
+ );
+
+ $conf = get_config('system','openssl_conf_file');
+ if($conf)
+ $openssl_options['config'] = $conf;
+
+ $result = openssl_pkey_new($openssl_options);
+
+ if(empty($result)) {
+ logger('new_keypair: failed');
+ return false;
+ }
+
+ // Get private key
+
+ $response = array('prvkey' => '', 'pubkey' => '');
+
+ openssl_pkey_export($result, $response['prvkey']);
+
+ // Get public key
+ $pkey = openssl_pkey_get_details($result);
+ $response['pubkey'] = $pkey["key"];
+
+ return $response;
+
+}
+