我必须使用PC1加密调用旧的PHP函数，不幸的是我没有说明或示例，只有php文件 - 并且没有PHP知道如何:( :( :(
有人可以帮助我如何通过URL参数调用加密和解密功能？我只需要显示/打印加密或解密的结果。
这是旧的代码：
<?
//class to encrypt and decrypt according to the "PC1" algorithm
// I. Verburgh 2007
class PC1 {
var $pkax;
var $pkbx;
var $pkcx;
var $pkdx;
var $pksi;
var $pktmp;
var $x1a2;
var $pkres;
var $pki;
var $inter;
var $cfc;
var $cfd;
var $compte;
var $x1a0;
var $cle;
var $pkc;
var $plainlen;
var $ascipherlen;
var $plainText;
var $ascCipherText;
function PC1() {
}
function pkfin() {
for ($j=0;$j<16;$j++) {
$this->cle[$j] = "";
}
for ($j=0;$j<8;$j++) {
$this->x1a0[$j] = 0;
}
$this->pkax = 0;
$this->pkbx = 0;
$this->pkcx = 0;
$this->pkdx = 0;
$this->pksi = 0;
$this->pktmp = 0;
$this->x1a2 = 0;
$this->pkres = 0;
$this->pki = 0;
$this->inter = 0;
$this->cfc = 0;
$this->cfd = 0;
$this->compte = 0;
$this->pkc = 0;
}
function pkcode() {
$this->pkdx = $this->x1a2 + $this->pki;
$this->pkax = $this->x1a0[$this->pki];
$this->pkcx = 0x015a;
$this->pkbx = 0x4e35;
$this->pktmp = $this->pkax;
$this->pkax = $this->pksi;
$this->pksi = $this->pktmp;
$this->pktmp = $this->pkax;
$this->pkax = $this->pkdx;
$this->pkdx = $this->pktmp;
if ($this->pkax != 0) {
$this->pkax = $this->wordmultiply($this->pkax, $this->pkbx);
}
$this->pktmp = $this->pkax;
$this->pkax = $this->pkcx;
$this->pkcx = $this->pktmp;
if ($this->pkax != 0) {
$this->pkax = $this->wordmultiply($this->pkax, $this->pksi);
$this->pkcx = $this->wordsum($this->pkax, $this->pkcx);
}
$this->pktmp = $this->pkax;
$this->pkax = $this->pksi;
$this->pksi = $this->pktmp;
$this->pkax = $this->wordmultiply($this->pkax, $this->pkbx);
$this->pkdx = $this->wordsum($this->pkcx, $this->pkdx);
$this->pkax = $this->wordsum($this->pkax, 1);
$this->x1a2 = $this->pkdx;
$this->x1a0[$this->pki] = $this->pkax;
$this->pkres = $this->wordxor($this->pkax, $this->pkdx);
$this->pki++;
}
function wordmultiply($value1, $value2) {
if (is_numeric($value1) && is_numeric($value2))
$product = (($value1 * $value2) % 65536);
else {
$product = 0;
echo "error with wordmulitply<br />";
}
return $product;
}
function wordsum($value1, $value2) {
$sum = (($value1 + $value2) % 65536);
return $sum;
}
function wordminus($value1, $value2) {
$minus = (($value1 - $value2) % 65536);
return $minus;
}
function wordxor($value1, $value2) {
$outcome = (($value1 ^ $value2) % 65536);
return $outcome;
}
function pkassemble() {
$this->x1a0[0] = $this->wordsum($this->wordmultiply(ord($this->cle[0]), 256), ord($this->cle[1]));
$this->pkcode();
$this->inter = $this->pkres;
$this->x1a0[1] = $this->wordxor($this->x1a0[0], $this->wordsum($this->wordmultiply(ord($this->cle[2]), 256), ord($this->cle[3])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[2] = $this->wordxor($this->x1a0[1], $this->wordsum($this->wordmultiply(ord($this->cle[4]), 256), ord($this->cle[5])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[3] = $this->wordxor($this->x1a0[2], $this->wordsum($this->wordmultiply(ord($this->cle[6]), 256), ord($this->cle[7])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[4] = $this->wordxor($this->x1a0[3], $this->wordsum($this->wordmultiply(ord($this->cle[8]), 256), ord($this->cle[9])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[5] = $this->wordxor($this->x1a0[4], $this->wordsum($this->wordmultiply(ord($this->cle[10]), 256), ord($this->cle[11])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[6] = $this->wordxor($this->x1a0[5], $this->wordsum($this->wordmultiply(ord($this->cle[12]), 256), ord($this->cle[13])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->x1a0[7] = $this->wordxor($this->x1a0[6], $this->wordsum($this->wordmultiply(ord($this->cle[14]), 256), ord($this->cle[15])));
$this->pkcode();
$this->inter = $this->wordxor($this->inter, $this->pkres);
$this->pki=0;
}
function encrypt($in, $key) {
$this->pkfin();
$this->k = 0;
$this->plainlen = strlen($in);
for ($count=0;$count<16;$count++) {
if (isset($key[$count]))
$this->cle[$count] = $key[$count];
}
for ($count=0;$count<$this->plainlen;$count++) {
$this->pkc = ord($in[$count]);
$this->pkassemble();
$this->cfc = $this->inter >> 8;
$this->cfd = $this->inter & 255;
for ($this->compte=0;$this->compte<sizeof($this->cle);$this->compte++) {
$this->cle[$this->compte] = chr($this->wordxor(ord($this->cle[$this->compte]), $this->pkc));
}
$this->pkc = $this->wordxor($this->pkc, ($this->wordxor($this->cfc, $this->cfd)));
$this->pkd = ($this->pkc >> 4);
$this->pke = ($this->pkc & 15);
$this->ascCipherText[$this->k] = $this->wordsum(0x61, $this->pkd);
$this->k++;
$this->ascCipherText[$this->k] = $this->wordsum(0x61, $this->pke);
$this->k++;
}
$this->ascCipherText = array_map("chr", $this->ascCipherText);
return implode("", $this->ascCipherText);
}
function decrypt($in, $key) {
$this->pkfin();
$return = "";
for ($count=0;$count<16;$count++) {
if (isset($key[$count]))
$this->cle[$count] = $key[$count];
else
$this->cle[$count] = "";
}
$this->pksi = 0;
$this->x1a2 = 0;
$d = 0;
$e = 0;
$i = 0;
$j = 0;
$l = 0;
$len = strlen($in);
while ($j < $len) {
$rep = $in[$j];
switch($rep) {
case "a": {
$d = 0;
break;
}
case "b": {
$d = 1;
break;
}
case "c": {
$d = 2;
break;
}
case "d": {
$d = 3;
break;
}
case "e": {
$d = 4;
break;
}
case "f": {
$d = 5;
break;
}
case "g": {
$d = 6;
break;
}
case "h": {
$d = 7;
break;
}
case "i": {
$d = 8;
break;
}
case "j": {
$d = 9;
break;
}
case "k": {
$d = 10;
break;
}
case "l": {
$d = 11;
break;
}
case "m": {
$d = 12;
break;
}
case "n": {
$d = 13;
break;
}
case "o": {
$d = 14;
break;
}
case "p": {
$d = 15;
break;
}
}
$d = $d << 4;
$j++;
$rep = $in[$j];
switch($rep) {
case "a": {
$e = 0;
break;
}
case "b": {
$e = 1;
break;
}
case "c": {
$e = 2;
break;
}
case "d": {
$e = 3;
break;
}
case "e": {
$e = 4;
break;
}
case "f": {
$e = 5;
break;
}
case "g": {
$e = 6;
break;
}
case "h": {
$e = 7;
break;
}
case "i": {
$e = 8;
break;
}
case "j": {
$e = 9;
break;
}
case "k": {
$e = 10;
break;
}
case "l": {
$e = 11;
break;
}
case "m": {
$e = 12;
break;
}
case "n": {
$e = 13;
break;
}
case "o": {
$e = 14;
break;
}
case "p": {
$e = 15;
break;
}
}
$c = $d + $e;
$this->pkassemble();
$this->cfc = $this->inter >> 8;
$this->cfd = $this->inter & 255;
$c = $this->wordxor($c, ($this->wordxor($this->cfc, $this->cfd)));
for ($compte=0;$compte<16;$compte++)
$this->cle[$compte] = chr($this->wordxor(ord($this->cle[$compte]), $c));
$return = $return.chr($c);
$j++;
$l++;
}
return $return;
}
}
?>
我尝试的是这样的东西
public function index()
{
var $test;
$test = encrypt("Hallo","nhifgbcnlfglffmh");
echo test;
}
$app = new PC1();
$app->index();
但是我得到解析错误：语法错误，出乎意料的t_var。我认为返回爆破不会返回字符串？
，因为它全部都在类中，您首先需要调用类
$app = new PC1();
您可以在该类中调用功能：
$test = $app->encrypt("Hallo","nhifgbcnlfglffmh");
对于函数作为URL参数工作，您可以执行以下操作：URL：example.com?encrypt=Hallo
在php页面中，它链接以检查$_GET SO：
<?php
$app = new PC1();
if( !empty( $_GET['encrypt'] ) {
$encrypt = $_GET['encrypt'];
var_dump($app->encrypt($encrypt, "nhifgbcnlfglffmh"));
} elseif ( !empty( $_GET['decrypt'] ) ) {
$decrypt = $_GET['decrypt'];
var_dump($app->decrypt($decrypt, "nhifgbcnlfglffmh"));
}