我正在尝试转换使用ActionScript编写并找到其PHP等效项的加密/解密程序。编写动作脚本代码的开发人员告诉我他使用了＆＃34; TEA＆＃34;算法做到了，但我不再与他联系。当我去搜索等效的TEA算法并运行它时，遗憾的是我获得的结果与ActionScript的结果不同。请有人帮我这个。提前谢谢。
我在这里粘贴了ActionScript代码。
WIN_apiTEA.prototype.encrypt = function(src, key) {
if(src.length == 0) return "";
var v = this.charsToLongs(this.strToChars(src));
var k = this.charsToLongs(this.hexToChars(key));
var n = v.length;
if (n % 2==1) v[n++] = 0;
tempv = new Array(2);
newv = new Array(v.length);
for (i=0; i<v.length; i=i+2){
tempv = this.mcrypt_encrypt(k,v,v[i+1]);
newv[i] = tempv[0];
newv[i+1] = tempv[1];
}
var encStr = this.charsToHex(this.longsToChars(newv));
return [encStr];
}
WIN_apiTEA.prototype.mcrypt_encrypt = function(k,y,z)
{
sum = 0;
while (sum != -957401312) {
y = int(y + ((((z << 4) ^ (z >>> 5)) + z) ^ (sum + k[sum & 3])));
sum = int(sum + 0x9E3779B9);
z = int(z + ((((y << 4) ^ (y >>> 5)) + y) ^ (sum + k[(sum >>> 11) & 3])));
}
return [y,z];
}
WIN_apiTEA.prototype.hexToChars = function(hex) {
var codes = [];
var hexArr = hex.split("");
var hl = hexArr.length/2;
for(var i=0;i<hl;i++) {
codes[i] = int("0x"+hexArr[i*2]+hexArr[(i*2)+1]);
}
return codes;
}
WIN_apiTEA.prototype.charsToLongs = function(chars) {
var tlength = Math.ceil(chars.length/4);
var temp = [];
var ti = 0;
for(var i = 0; i<tlength; i++){
ti = i*4;
temp[i] = (((chars[ti] << 24) + (chars[ti+1]<<16)) + (chars[ti+2]<<8)) + chars[ti+3];
}
return temp;
}
WIN_apiTEA.prototype.longsToChars = function(longs) {
var codes = [];
var ll = longs.length;
var x = 0;
for(var i = 0; i<ll; i++) {
codes[x++] = longs[i]>>>24 & 0xFF;
codes[x++] = longs[i]>>>16 & 0xFF;
codes[x++] = longs[i]>>>8 & 0xFF;
codes[x++] = longs[i] & 0xFF;
}
return codes;
}
WIN_apiTEA.prototype.charsToStr = function(chars) {
var temp = "";
var cl = chars.length;
for(var i = 0; i<cl; i++) {
temp += chr(chars[i]);
}
return temp;
}
WIN_apiTEA.prototype.strToChars = function(src) {
var codes = [];
var strArr = src.split("");
var sl = strArr.length;
var cnt = 0;
for(var i = 0; i<sl; i++) {
codes[i] = ord(strArr[i]);
}
return codes;
}
WIN_apiTEA.prototype.changeKey = function(enctext, keytext){
return (enctext.substr(0, 8) + keytext.substr(8, 24));
}
我开始将它转换为PHP，这就是我所拥有的，但是它不起作用（它给了我不同的加密字符串，而不是我运行原始AS版本时得到的）：
class apiTea
{
public function encrypt($src, $key, $token)
{
if (strlen($src) == 0) {
return ("");
}
$_loc1 = $this->charsToLongs($this->strToChars($src));
$_loc3 = $this->charsToLongs($this->hexToChars($key));
$n = count($_loc1);
if ($n % 2 == 1) {
$_loc1[$n++] = 0;
}
$tempv = array(
2
);
$newv = array(
count($_loc1)
);
for ($i = 0; $i < count($_loc1); $i = $i + 2) {
$tempv = $this->mcrypt_encrypt($_loc3, $_loc1[$i], $_loc1[$i + 1]);
$newv[$i] = $tempv[0];
$newv[i + 1] = $tempv[1];
}
$encStr = $this->charsToHex($this->longsToChars($newv));
return ($token . ':' . $encStr);
}
function mcrypt_encrypt($k, $y, $z)
{
$_loc1 = $z;
$_loc2 = $y;
$_loc3 = $k;
$sum = 0;
while ($sum != -957401312) {
$_loc2 = (int) ($_loc2 + (($_loc1 << 4 ^ $_loc1 >> 5) + $_loc1 ^ $sum + $_loc3[$sum & 3]));
$sum = (int) ($sum + 2654435769.000000);
$_loc1 = (int) ($_loc1 + (($_loc2 << 4 ^ $_loc2 >> 5) + $_loc2 ^ $sum + $_loc3[$sum >> 11 & 3]));
}
return (array(
$_loc2,
$_loc1
));
}
function mcrypt_decrypt($k, $y, $z)
{
$_loc1 = $z;
$_loc2 = $y;
$_loc3 = $k;
$sum = -957401312;
while ($sum) {
$_loc1 = (int) ($_loc1 - (($_loc2 << 4 ^ $_loc2 >> 5) + $_loc2 ^ $sum + $_loc3[$sum >> 11 & 3]));
$sum = (int) ($sum - 2654435769.000000);
$_loc2 = (int) ($_loc2 - (($_loc1 << 4 ^ $_loc1 >> 5) + $_loc1 ^ $sum + $_loc3[$sum & 3]));
}
return (array(
$_loc2,
$_loc1
));
}
function decrypt($src, $key)
{
if (substr($src, 0, 1) == "<") {
return ($src);
} else {
if (strlen($src) == 0) {
return ("");
}
$_loc1 = $this->charsToLongs($this->hexToChars($src));
$_loc3 = $this->charsToLongs($this->hexToChars($key));
$tempv = array(
2
);
$newv = array(
strlen($_loc1)
);
for ($i = 0; $i < strlen($_loc1); $i = $i + 2) {
$tempv = $this->mcrypt_decrypt($_loc3, $_loc1[$i], $_loc1[$i + 1]);
$newv[$i] = $tempv[0];
$newv[$i + 1] = $tempv[1];
}
return ($this->charsToStr($this->longsToChars($newv)));
}
}
function charsToHex($chars)
{
$_loc2 = $chars;
$temp = (string) ("");
$_loc3 = array(
"0",
"1",
"2",
"3",
"4",
"5",
"6",
"7",
"8",
"9",
"a",
"b",
"c",
"d",
"e",
"f"
);
for ($_loc1 = 0; $_loc1 < count($_loc2); $_loc1++) {
$temp = $temp + ($_loc3[$_loc2[$_loc1] >> 4] + $_loc3[$_loc2[$_loc1] & 15]);
}
return ($temp);
}
function charsToLongs($chars)
{
$_loc3 = $chars;
$tlength = ceil(count($_loc3) / 4);
$temp = array();
$_loc2 = 0;
for ($_loc1 = 0; $_loc1 < $tlength; $_loc1++) {
$_loc2 = $_loc1 * 4;
$temp[$_loc1] = ((($_loc3[$_loc2] << 24) + ($_loc3[$_loc2 + 1] << 16)) + ($_loc3[$_loc2 + 2] << 8)) + $_loc3[$_loc2 + 3];
}
return ($temp);
}
function longsToChars($longs)
{
$_loc2 = array();
$ll = count($longs);
$_loc3 = 0;
for ($_loc1 = 0; $_loc1 < $ll; $_loc1++) {
$_loc2[$_loc3++] = $longs[$_loc1] >> 24 & 255;
$_loc2[$_loc3++] = $longs[$_loc1] >> 16 & 255;
$_loc2[$_loc3++] = $longs[$_loc1] >> 8 & 255;
$_loc2[$_loc3++] = $longs[$_loc1] & 255;
}
return ($_loc2);
}
function hexToChars($hex)
{
$chars = array();
for ($i = (substr($hex, 0, 2) == "0x" ? 2 : 0); $i < strlen($hex); $i += 2) {
array_push($chars, intval(substr($hex, $i, 2), 16));
}
return $chars;
}
function charsToStr($chars)
{
$str = "";
for ($i = 0; $i < count($chars); $i++) {
$str .= chr($chars[$i]);
}
return $str;
}
function strToChars($str)
{
$chars = array();
foreach (str_split($str) as $ord) {
array_push($chars, ord($ord));
}
return $chars;
}
function changeKey($enctext, $keytext)
{
// not needed yet
}
}
答案 0 :(得分：0)
使用AS3Crypto，在这种情况下你可以找到与ASE-CBC兼容的解决方案，请看这里： decrypt a as3crypto encrypted text in PHP