分享一下微信支付v3 php的解密代码。

微信支付V3 & # 29256本小程序支付php & # 31614名,验签,数据解密代码分享

微信支付v3 & # 29256php & # 35299密解密代码

数据解密需要用到钠& # 25193；展大部分php & # 29256本需要安装

证书序列号可以在这里查看https://myssl.com/cert_decode.html

我用的php7.4 & # 29256本

直接上代码：

//微信原生支付Wxpay类{/* * & # 25903；付(小程序支付)* @ param type $ sn & # 35746单编号* @ param type $ money & # 37329额* @ param type $ openid & # 29992户小程序openid * @return type */公共静态函数getPayParam($sn，$money，$ OpenID){ $ URL = ' https://API . mch . weixin . QQ . com/v3/pay/transactions/jsapi '；$ notify _ URL = URL('/API/weixin/notify ')；$ data =[]；$ data[' appid ']= Action::CONFIG(CONFIG _ WXXCX，' app _ id ')；$ data[' MC hid ']= Action::CONFIG(CONFIG _ WXXCX，' MC hid ')；//商户号$ data[' description ']= ' XXX '；//描述？$ data[' out _ trade _ no ']= $ sn；//商户系统内部订单号$ data[' time _ expire ']= date(' Y-m-d ')。t '日期(' H:i:s '，(time() + 1800))。'+08:00';//订单失效时间2018-06-08t 10:34:56+08:00 $ data[' notify _ URL ']= $ notify _ URL；//异步通知接口地址$ data[' amount ']=[' total ' = & gt；$money * 100，'货币' = & gtCNY’]；//金额$ data[' payer ']=[' OpenID ' = & gt；$ OpenID]；//用户$re = self::wxCurl($url，$data，' POST ')；如果(！isset($ re[' prepay _ id ']){ API _ fail(' & # 21442；数获取失败');} $ result =[]；$ result[' appId ']= Action::CONFIG(CONFIG _ WXXCX，' app _ id ')；$result['timeStamp'] =(字符串)time()；$ result[' non centr ']= uniqid()；$result['package'] = 'prepay_id= '。$ re[' prepay _ id ']；$ result[' sign type ']= ' RSA '；$ result[' paySign ']= self::getPaySign($ result)；返回$ result} /** * 查询订单* @ param type $ sn */public static function select($ sn，$ return = false){ $ MC hid = Action::CONFIG(CONFIG _ WXXCX，' MC hid ')；//商户号$ URL = ' https://API . mch . weixin . QQ . com/v3/pay/transactions/out -trade -no/'。$sn。？mchid= '。$ mchid$re = self::wxCurl($url，[]，' GET ')；if($ return){ return $ re；} if(isset($ re[' trade _ state '])& amp；& amp$ re[' trade _ state ']= ' SUCCESS '){ return true；}返回false} /** * 关闭订单* @ param type $ sn */public static function close($ sn){ $ MC hid = Action::CONFIG(CONFIG _ WXXCX，' MC hid ')；//商户号$ URL = ' https://API . mch . weixin . QQ . com/v3/pay/transactions/out -trade -no/'。$sn。/close '；$re = self::wxCurl($url，[' MC hid ' = & gt；$mchid]，' POST ')；返回true} /** * 退款* @param type $sn */公共静态函数refund($order_sn，$refund_sn，$total，$refund，$ msg = ' & # 36864款'){ $ URL = ' https://API . mch . weixin . QQ . com/v3/退款/国内/退款'；$ data =[]；$ data[' notify _ URL ']= URL(' ag/weixin/notify _ refund ')；$ data[' out _ trade _ no ']= $ order _ sn；//订单号$ data[' out _ refund _ no ']= $ refund _ sn；//退款单号$ data[' reason ']= $ msg；$data['amount']=['退款' = & gt$退款*100，'总计' = & gt$total*100，' currency ' = & gtCNY’]；$re = self::wxCurl($url，$data，' POST ')；return $ re} //请求公共静态函数wxCurl($url，$data = []，$ method = ' GET '){ $ Authorization = self::getsigre($ URL，$data，$ method)；$ header =[' content -Type:application/JSON '，' Accept: application/json '，' user -Agent:Mozilla/5.0(Windows NT 10.0；Win64x64) AppleWebKit/537.36 (KHTML，像壁虎一样)Chrome/89 . 0 . 4389 . 90 Safari/537.36 Edg/89 . 0 . 774 . 63 '，'授权:'。$授权]；$redata = $data？JSON _ encode($ data):“”；$res = reCurl($url，$redata，$ header)；返回$res？json_decode($res，true):[]；} //后端请求签名公共静态函数getsigre($ URL，$data，$ method = ' GET '){ $ URL _ parts = parse _ URL($ URL)；$ canonical _ URL =($ URL _ parts[' path ']。(!空($url_parts['query'])？"?$ { URL _ parts[' query ']} ":" ")；$ http _ method = $ method$ timestamp = time()；$ nonce = uni qid()；$body = $data？JSON _ encode($ data):“”；$ MC hid = Action::CONFIG(CONFIG _ WXXCX，' MC hid ')；//商户id $ serial _ no = Action::CONFIG(CONFIG _ WXXCX，' serial _ no ')；//证书编号$ private _ key = self::getPrivateKey(BASE _ PATH。cert/API client _ key . PEM ')；//商户私钥$message = $http_method。\n。$canonical_url。\n。$时间戳。\n。$nonce。\n。$body。”\ n”；openssl_sign($message，$raw_sign，$private_key，' sha 256 withrsaencryption ')；$ sign = base64 _ encode($ raw _ sign)；$token = sprintf('mchid="%s "，nonce_str="%s "，timestamp="%d "，serial_no="%s "，str = " % s "，$mchid，$nonce，$timestamp，$serial_no，$ sign)；返回'微信支付2-SHA256-RSA2048 '。$ token} //前端小程序签名公共静态函数getPaySign($ result){ $ private _ key = self::getPrivateKey(BASE _ PATH。cert/API client _ key . PEM ')；//商户私钥$message = $result['appId']。\n。$result['timeStamp']。\n。$ result[' non centr ']。\n。$result['package']。”\ n”；openssl_sign($message，$raw_sign，$private_key，' sha 256 withrsaencryption ')；$ sign = base64 _ encode($ raw _ sign)；return $ sign} //验证签名公共静态函数checkSign(){ $ header = Context::get(' header ')；$serial_no = $header['微信支付-serial']？？'';//微信平台序列号$timeStamp = $header['微信支付-时间戳']？？'';$ nonce = $ header[' we chat pay -nonce ']？？'';$ body = Context::get(' raw ')；$wx_sign = $header['微信支付-签名']？？'';$ wx _ serial _ no = Action::CONFIG(CONFIG _ WXXCX，' wx _ serial _ no ')；//保存的序列号如果(！$serial_no || $wx_serial_no！= $ serial _ no){ \ SFF \ Log::write(' & # 31614；名过期');返回false} $message = $timeStamp。\n。$nonce。\n。$body。”\ n”；$ wx _ sign = base64 _ decode($ wx _ sign)；$ public _ key = self::get public key(BASE _ PATH。cert/wx _ public _ cert . PEM’)；//平台公钥$res = openssl_verify($message，$wx_sign，$public_key，OPENSSL _ ALGO _ sha 256)；if ($res == 1) {返回true} \ SFF \ Log::write(' & # 39564；签失败');返回false} //获取私钥公共静态函数getPrivateKey($ file path){ return OpenSSL _ get _ privatekey(file _ get _ contents($ file path))；} //获取公钥公共静态函数get public key($ file path){ return OpenSSL _ pkey _ get _ public(file _ get _ contents($ file path))；} //加密数据公共静态函数get encrypt($ str){//$ str & # 26159；待加密字符串$public_key_path = BASE_PATH。cert/wx _ public _ cert . PEM '；//'平台证书路径'；$ public _ key = file _ get _ contents($ public _ key _ path)；$ encrypted =“”；if (openssl_public_encrypt($str，$encrypted，$public_key，OPENSSL _ PKCS1 _ OAEP _ PADDING)){//base64 & # 32534；码$ sign = base64 _ encode($ encrypted)；} else {抛出新的异常(“加密失败”)；} return $ sign} //解密数据公共静态函数decryptToString($密文，$associatedData，$ non centr){ $ AES key = Action::CONFIG(CONFIG _ WXXCX，' mch _ key v3 ')；//商户apiv3 & # 23494钥解密$ str = base64 _ decode($密文)；if(strlen($ str)& lt；= 16){ return“”；}//ext-钠(默认安装在& gt= PHP 7.2)return \ na _ crypto _ aead _ AES 256 GCM _ decrypt($ str，$associatedData，$ nonceStr，$ AES key)；} //下载平台证书公共静态函数down cert(){ $ URL = ' https://API . mch . weixin . QQ . com/v3/certificates '；$re = self::wxCurl($url，[]，' GET ')；如果(！isset($ re[' data ']){ API _ fail(' & # 33719；取证书失败');} $密文= $ re[' data '][0][' encrypt _ certificate ']['密文']；$ associated data = $ re[' data '][0][' encrypt _ certificate '][' associated _ data ']；$ non castr = $ re[' data '][0][' encrypt _ certificate '][' nonce ']；$ data = self::decryptToString($密文，$associatedData，$ non castr)；如果(！$ data){ API _ fail(' & # 33719；取证书解密失败');}文件_上传_内容(基本路径。/cert/wx_public_cert.pem '，$ data)；返回$ data}}以上是分享微信支付v3 php解密代码的详细内容。更多信息请关注主机参考其他相关文章！

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