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加密解密文件位置调整

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This commit is contained in:
zhulongjun 2019-01-16 15:51:48 +08:00
parent e3c4dce396
commit 3628eb5b12
7 changed files with 127 additions and 570 deletions
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35
webapp/controller/errorCode.php
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@ -1,35 +0,0 @@
<?php
/**
* error code 说明.
* <ul>
* <li>-40001: 签名验证错误</li>
* <li>-40002: xml解析失败</li>
* <li>-40003: sha加密生成签名失败</li>
* <li>-40004: encodingAesKey 非法</li>
* <li>-40005: appid 校验错误</li>
* <li>-40006: aes 加密失败</li>
* <li>-40007: aes 解密失败</li>
* <li>-40008: 解密后得到的buffer非法</li>
* <li>-40009: base64加密失败</li>
* <li>-40010: base64解密失败</li>
* <li>-40011: 生成xml失败</li>
* </ul>
*/
class ErrorCode
{
public static $OK = 0;
public static $ValidateSignatureError = -40001;
public static $ParseXmlError = -40002;
public static $ComputeSignatureError = -40003;
public static $IllegalAesKey = -40004;
public static $ValidateAppidError = -40005;
public static $EncryptAESError = -40006;
public static $DecryptAESError = -40007;
public static $IllegalBuffer = -40008;
public static $EncodeBase64Error = -40009;
public static $DecodeBase64Error = -40010;
public static $GenReturnXmlError = -40011;
}
?>

207
webapp/controller/pkcs7Encoder.php
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@ -1,207 +0,0 @@
<?php
include_once "errorCode.php";
/**
* PKCS7Encoder class
*
* 提供基于PKCS7算法的加解密接口.
*/
class PKCS7Encoder
{
public static $block_size = 32;
/**
* 对需要加密的明文进行填充补位
* @param $text 需要进行填充补位操作的明文
* @return 补齐明文字符串
*/
function encode($text)
{
$block_size = PKCS7Encoder::$block_size;
$text_length = strlen($text);
//计算需要填充的位数
$amount_to_pad = PKCS7Encoder::$block_size - ($text_length % PKCS7Encoder::$block_size);
if ($amount_to_pad == 0) {
$amount_to_pad = PKCS7Encoder::block_size;
}
//获得补位所用的字符
$pad_chr = chr($amount_to_pad);
$tmp = "";
for ($index = 0; $index < $amount_to_pad; $index++) {
$tmp .= $pad_chr;
}
return $text . $tmp;
}
/**
* 对解密后的明文进行补位删除
* @param decrypted 解密后的明文
* @return 删除填充补位后的明文
*/
function decode($text)
{
$pad = ord(substr($text, -1));
if ($pad < 1 || $pad > 32) {
$pad = 0;
}
return substr($text, 0, (strlen($text) - $pad));
}
}
/**
* Prpcrypt class
*
* 提供接收和推送给公众平台消息的加解密接口.
*/
class Prpcrypt
{
public $key;
function Prpcrypt($k)
{
$this->key = base64_decode($k . "=");
}
/**
* 对明文进行加密
* @param string $text 需要加密的明文
* @return string 加密后的密文
*/
public function encrypt($text, $appid)
{
try {
//获得16位随机字符串，填充到明文之前
$random = $this->getRandomStr();
$text = $random . pack("N", strlen($text)) . $text . $appid;
// 网络字节序
$size = mcrypt_get_block_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
$iv = substr($this->key, 0, 16);
//使用自定义的填充方式对明文进行补位填充
$pkc_encoder = new PKCS7Encoder;
$text = $pkc_encoder->encode($text);
mcrypt_generic_init($module, $this->key, $iv);
//加密
$encrypted = mcrypt_generic($module, $text);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
//print(base64_encode($encrypted));
//使用BASE64对加密后的字符串进行编码
return array(ErrorCode::$OK, base64_encode($encrypted));
} catch (Exception $e) {
//print $e;
return array(ErrorCode::$EncryptAESError, null);
}
}
/**
* 对密文进行解密
* @param string $encrypted 需要解密的密文
* @return string 解密得到的明文
*/
public function decrypt($encrypted, $appid)
{
try {
//使用BASE64对需要解密的字符串进行解码
$ciphertext_dec = base64_decode($encrypted);
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
$iv = substr($this->key, 0, 16);
mcrypt_generic_init($module, $this->key, $iv);
//解密
$decrypted = mdecrypt_generic($module, $ciphertext_dec);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
} catch (Exception $e) {
return array(ErrorCode::$DecryptAESError, null);
}
try {
//去除补位字符
$pkc_encoder = new PKCS7Encoder;
$result = $pkc_encoder->decode($decrypted);
//去除16位随机字符串,网络字节序和AppId
if (strlen($result) < 16)
return "";
$content = substr($result, 16, strlen($result));
$len_list = unpack("N", substr($content, 0, 4));
$xml_len = $len_list[1];
$xml_content = substr($content, 4, $xml_len);
$from_appid = substr($content, $xml_len + 4);
} catch (Exception $e) {
//print $e;
return array(ErrorCode::$IllegalBuffer, null);
}
if ($from_appid != $appid)
return array(ErrorCode::$ValidateAppidError, null);
return array(0, $xml_content);
}
public function decryptJson($encrypted, $appid)
{
try {
//使用BASE64对需要解密的字符串进行解码
$ciphertext_dec = base64_decode($encrypted);
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
$iv = substr($this->key, 0, 16);
mcrypt_generic_init($module, $this->key, $iv);
//解密
$decrypted = mdecrypt_generic($module, $ciphertext_dec);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
} catch (Exception $e) {
return array(ErrorCode::$DecryptAESError, null);
}
try {
//去除补位字符
$pkc_encoder = new PKCS7Encoder;
$result = $pkc_encoder->decode($decrypted);
//去除16位随机字符串,网络字节序和AppId
if (strlen($result) < 16)
return "";
$content = substr($result, 16, strlen($result));
$len_list = unpack("N", substr($content, 0, 4));
$xml_len = $len_list[1];
$xml_content = substr($content, 4, $xml_len);
$from_appid = substr($content, $xml_len + 4);
} catch (Exception $e) {
//print $e;
return array(ErrorCode::$IllegalBuffer, null);
}
if ($from_appid != $appid)
return array(ErrorCode::$ValidateAppidError, null);
return array(0, $xml_content);
}
/**
* 随机生成16位字符串
* @return string 生成的字符串
*/
function getRandomStr()
{
$str = "";
$str_pol = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz";
$max = strlen($str_pol) - 1;
for ($i = 0; $i < 16; $i++) {
$str .= $str_pol[mt_rand(0, $max)];
}
return $str;
}
}
?>

36
webapp/controller/sha1.php
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@ -1,36 +0,0 @@
<?php
include_once "errorCode.php";
/**
* SHA1 class
*
* 计算公众平台的消息签名接口.
*/
class SHA1
{
/**
* 用SHA1算法生成安全签名
* @param string $token 票据
* @param string $timestamp 时间戳
* @param string $nonce 随机字符串
* @param string $encrypt 密文消息
*/
public function getSHA1($token, $timestamp, $nonce, $encrypt_msg)
{
//排序
try {
$array = array($encrypt_msg, $token, $timestamp, $nonce);
sort($array, SORT_STRING);
$str = implode($array);
return array(ErrorCode::$OK, sha1($str));
} catch (Exception $e) {
//print $e . "\n";
return array(ErrorCode::$ComputeSignatureError, null);
}
}
}
?>

236
webapp/controller/wxBizMsgCrypt.php
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@ -1,236 +0,0 @@
<?php
/**
* 对公众平台发送给公众账号的消息加解密示例代码.
*
* @copyright Copyright (c) 1998-2014 Tencent Inc.
*/
include_once "sha1.php";
include_once "xmlparse.php";
include_once "pkcs7Encoder.php";
include_once "errorCode.php";
/**
* 1.第三方回复加密消息给公众平台；
* 2.第三方收到公众平台发送的消息，验证消息的安全性，并对消息进行解密。
*/
class WXBizMsgCrypt
{
private $token;
private $encodingAesKey;
private $appId;
/**
* 构造函数
* @param $token string 公众平台上，开发者设置的token
* @param $encodingAesKey string 公众平台上，开发者设置的EncodingAESKey
* @param $appId string 公众平台的appId
*/
public function WXBizMsgCrypt($token, $encodingAesKey, $appId)
{
$this->token = $token;
$this->encodingAesKey = $encodingAesKey;
$this->appId = $appId;
}
/**
* 将公众平台回复用户的消息加密打包.
* <ol>
* <li>对要发送的消息进行AES-CBC加密</li>
* <li>生成安全签名</li>
* <li>将消息密文和安全签名打包成xml格式</li>
* </ol>
*
* @param $replyMsg string 公众平台待回复用户的消息，xml格式的字符串
* @param $timeStamp string 时间戳，可以自己生成，也可以用URL参数的timestamp
* @param $nonce string 随机串，可以自己生成，也可以用URL参数的nonce
* @param &$encryptMsg string 加密后的可以直接回复用户的密文，包括msg_signature, timestamp, nonce, encrypt的xml格式的字符串,
* 当return返回0时有效
*
* @return int 成功0，失败返回对应的错误码
*/
public function encryptMsg($replyMsg, $timeStamp, $nonce, &$encryptMsg)
{
$pc = new Prpcrypt($this->encodingAesKey);
//加密
$array = $pc->encrypt($replyMsg, $this->appId);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
if ($timeStamp == null) {
$timeStamp = time();
}
$encrypt = $array[1];
//生成安全签名
$sha1 = new SHA1;
$array = $sha1->getSHA1($this->token, $timeStamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
//生成发送的xml
$xmlparse = new XMLParse;
$encryptMsg = $xmlparse->generate($encrypt, $signature, $timeStamp, $nonce);
return ErrorCode::$OK;
}
public function encryptJsonMsg($replyMsg, $timeStamp, $nonce, &$encryptMsg)
{
$pc = new Prpcrypt($this->encodingAesKey);
//加密
$array = $pc->encrypt($replyMsg, $this->appId);
#error_log('加密array:' . json_encode($array));
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
if ($timeStamp == null) {
$timeStamp = time();
}
$encrypt = $array[1];
//生成安全签名
$sha1 = new SHA1;
error_log('加密encrypt:' . $encrypt);
$array = $sha1->getSHA1($this->token, $timeStamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
//生成发送的json
$enctyptMsgArray = array(
'Encrypt' => $encrypt,
'MsgSignature' => $signature,
'TimeStamp' => $timeStamp,
'Nonce' => $nonce
);
$encryptMsg = json_encode($enctyptMsgArray);
return ErrorCode::$OK;
}
/**
* 检验消息的真实性，并且获取解密后的明文.
* <ol>
* <li>利用收到的密文生成安全签名，进行签名验证</li>
* <li>若验证通过，则提取xml中的加密消息</li>
* <li>对消息进行解密</li>
* </ol>
*
* @param $msgSignature string 签名串，对应URL参数的msg_signature
* @param $timestamp string 时间戳 对应URL参数的timestamp
* @param $nonce string 随机串，对应URL参数的nonce
* @param $postData string 密文，对应POST请求的数据
* @param &$msg string 解密后的原文，当return返回0时有效
*
* @return int 成功0，失败返回对应的错误码
*/
public function decryptMsg($msgSignature, $timestamp = null, $nonce, $postData, &$msg)
{
if (strlen($this->encodingAesKey) != 43) {
return ErrorCode::$IllegalAesKey;
}
$pc = new Prpcrypt($this->encodingAesKey);
//提取密文
$xmlparse = new XMLParse;
$array = $xmlparse->extract($postData);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
if ($timestamp == null) {
$timestamp = time();
}
$encrypt = $array[1];
$touser_name = $array[2];
//验证安全签名
$sha1 = new SHA1;
$array = $sha1->getSHA1($this->token, $timestamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
if ($signature != $msgSignature) {
return ErrorCode::$ValidateSignatureError;
}
$result = $pc->decrypt($encrypt, $this->appId);
if ($result[0] != 0) {
return $result[0];
}
$msg = $result[1];
return ErrorCode::$OK;
}
public function decryptJsonMsg($msgSignature, $timestamp = null, $nonce, $postData_str, &$msg)
{
if (strlen($this->encodingAesKey) != 43) {
return ErrorCode::$IllegalAesKey;
}
$pc = new Prpcrypt($this->encodingAesKey);
if ($timestamp == null) {
$timestamp = time();
}
$postData = json_decode($postData_str, true);
$encrypt = $postData['Encrypt'];
$touser_name = $postData['TuUserName'];
#error_log('token:' . $this->token);
#error_log('timestamp:' . $timestamp);
#error_log('nonce:' . $nonce);
#error_log('encypt:' . $encrypt);
//验证安全签名
$sha1 = new SHA1;
error_log('解密encrypt:' . $encrypt);
$array = $sha1->getSHA1($this->token, $timestamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
error_log($signature);
error_log($msgSignature);
if ($signature != $msgSignature) {
return ErrorCode::$ValidateSignatureError;
}
$result = $pc->decrypt($encrypt, $this->appId);
if ($result[0] != 0) {
return $result[0];
}
$msg = $result[1];
return ErrorCode::$OK;
}
}

55
webapp/controller/xmlparse.php
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@ -1,55 +0,0 @@
<?php
include_once "errorCode.php";
/**
* XMLParse class
*
* 提供提取消息格式中的密文及生成回复消息格式的接口.
*/
class XMLParse
{
/**
* 提取出xml数据包中的加密消息
* @param string $xmltext 待提取的xml字符串
* @return string 提取出的加密消息字符串
*/
public function extract($xmltext)
{
libxml_disable_entity_loader(true);
try {
$xml = new DOMDocument();
$xml->loadXML($xmltext);
$array_e = $xml->getElementsByTagName('Encrypt');
$array_a = $xml->getElementsByTagName('ToUserName');
$encrypt = $array_e->item(0)->nodeValue;
$tousername = $array_a->item(0)->nodeValue;
return array(0, $encrypt, $tousername);
} catch (Exception $e) {
//print $e . "\n";
return array(ErrorCode::$ParseXmlError, null, null);
}
}
/**
* 生成xml消息
* @param string $encrypt 加密后的消息密文
* @param string $signature 安全签名
* @param string $timestamp 时间戳
* @param string $nonce 随机字符串
*/
public function generate($encrypt, $signature, $timestamp, $nonce)
{
$format = "<xml>
<Encrypt><![CDATA[%s]]></Encrypt>
<MsgSignature><![CDATA[%s]]></MsgSignature>
<TimeStamp>%s</TimeStamp>
<Nonce><![CDATA[%s]]></Nonce>
</xml>";
return sprintf($format, $encrypt, $signature, $timestamp, $nonce);
}
}
?>

42
webapp/endecrypt/pkcs7Encoder.php
View File

@ -123,6 +123,46 @@ class Prpcrypt
}
try {
//去除补位字符
$pkc_encoder = new PKCS7Encoder;
$result = $pkc_encoder->decode($decrypted);
//去除16位随机字符串,网络字节序和AppId
if (strlen($result) < 16)
return "";
$content = substr($result, 16, strlen($result));
$len_list = unpack("N", substr($content, 0, 4));
$xml_len = $len_list[1];
$xml_content = substr($content, 4, $xml_len);
$from_appid = substr($content, $xml_len + 4);
} catch (Exception $e) {
//print $e;
return array(ErrorCode::$IllegalBuffer, null);
}
if ($from_appid != $appid)
return array(ErrorCode::$ValidateAppidError, null);
return array(0, $xml_content);
}
public function decryptJson($encrypted, $appid)
{
try {
//使用BASE64对需要解密的字符串进行解码
$ciphertext_dec = base64_decode($encrypted);
$module = mcrypt_module_open(MCRYPT_RIJNDAEL_128, '', MCRYPT_MODE_CBC, '');
$iv = substr($this->key, 0, 16);
mcrypt_generic_init($module, $this->key, $iv);
//解密
$decrypted = mdecrypt_generic($module, $ciphertext_dec);
mcrypt_generic_deinit($module);
mcrypt_module_close($module);
} catch (Exception $e) {
return array(ErrorCode::$DecryptAESError, null);
}
try {
//去除补位字符
$pkc_encoder = new PKCS7Encoder;
@ -164,4 +204,4 @@ class Prpcrypt
}
?>
?>

86
webapp/endecrypt/wxBizMsgCrypt.php
View File

@ -81,6 +81,44 @@ class WXBizMsgCrypt
$encryptMsg = $xmlparse->generate($encrypt, $signature, $timeStamp, $nonce);
return ErrorCode::$OK;
}
public function encryptJsonMsg($replyMsg, $timeStamp, $nonce, &$encryptMsg)
{
$pc = new Prpcrypt($this->encodingAesKey);
//加密
$array = $pc->encrypt($replyMsg, $this->appId);
#error_log('加密array:' . json_encode($array));
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
if ($timeStamp == null) {
$timeStamp = time();
}
$encrypt = $array[1];
//生成安全签名
$sha1 = new SHA1;
error_log('加密encrypt:' . $encrypt);
$array = $sha1->getSHA1($this->token, $timeStamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
//生成发送的json
$enctyptMsgArray = array(
'Encrypt' => $encrypt,
'MsgSignature' => $signature,
'TimeStamp' => $timeStamp,
'Nonce' => $nonce
);
$encryptMsg = json_encode($enctyptMsgArray);
return ErrorCode::$OK;
}
/**
@ -146,5 +184,53 @@ class WXBizMsgCrypt
return ErrorCode::$OK;
}
public function decryptJsonMsg($msgSignature, $timestamp = null, $nonce, $postData_str, &$msg)
{
if (strlen($this->encodingAesKey) != 43) {
return ErrorCode::$IllegalAesKey;
}
$pc = new Prpcrypt($this->encodingAesKey);
if ($timestamp == null) {
$timestamp = time();
}
$postData = json_decode($postData_str, true);
$encrypt = $postData['Encrypt'];
$touser_name = $postData['TuUserName'];
#error_log('token:' . $this->token);
#error_log('timestamp:' . $timestamp);
#error_log('nonce:' . $nonce);
#error_log('encypt:' . $encrypt);
//验证安全签名
$sha1 = new SHA1;
error_log('解密encrypt:' . $encrypt);
$array = $sha1->getSHA1($this->token, $timestamp, $nonce, $encrypt);
$ret = $array[0];
if ($ret != 0) {
return $ret;
}
$signature = $array[1];
error_log($signature);
error_log($msgSignature);
if ($signature != $msgSignature) {
return ErrorCode::$ValidateSignatureError;
}
$result = $pc->decrypt($encrypt, $this->appId);
if ($result[0] != 0) {
return $result[0];
}
$msg = $result[1];
return ErrorCode::$OK;
}
}