PHP解密支付宝小程序的加密数据、手机号的示例代码

1.小程序端代码示例

my.getPhoneNumber({
 success: (res) => {
 let encryptedData = res.response;
 my.httpRequest({
  url: "你的后端服务端",
  data: encryptedData,
 });
 },
 fail: (res) => {
 console.log(res);
 console.log("getPhoneNumber_fail");
 },
});

2.PHP后端解密示例

public static function decryptData($encryptedData, $key = "开发设置-接口内容加密方式-查看-字符串")
 {
 $encrys = json_decode($encryptedData, true);
 $encryptedData = $encrys["response"];
 $str = base64_decode($encryptedData);
 $screct_key = base64_decode($key);

 //设置全0的IV
 $iv_size = mcrypt_get_iv_size(MCRYPT_RIJNDAEL_128, MCRYPT_MODE_CBC);
 $iv = str_repeat("", $iv_size);

 $decrypt_str = mcrypt_decrypt(MCRYPT_RIJNDAEL_128, $screct_key, $str, MCRYPT_MODE_CBC, $iv);
 $decrypt_str = self::stripPKSC7Padding($decrypt_str);
 return $decrypt_str;
 }

 public static function stripPKSC7Padding($source)
 {
 $char = substr($source, -1);
 $num = ord($char);
 if ($num == 62) return $source;
 $source = substr($source, 0, -$num);
 return $source;
 }

3.解密返回

{"code":"10000","msg":"Success","mobile":"185xxxxx111"}

知识点扩展：

php函数摘要-加密和解密类

1支付宝小程序手机号解密

加密数据

{
 "response": "EaieI1W9gPK0zClNbA7P0T6svaSYq/1xejihTXNVSH0WyCjBIcP2xOwaAevaYgb4aeQ5NNRQaqbZgVvfJKfaLQ==",
 "sign": "iSHQH/r3rZiBx7N49SwQNHx2Y0B6OP2ePvhS+T2XKw9+dzt3T1W9T0cHSldFlkczcdPQ05Pi/bEygsZxip6StCNEqse7ou/nXx9QOAVNoBgZfb4bmFJxOl8DYeuF8VKQy+NdxuvRGJFpmVynZtSNy31BfD4663IowMj80/pfnmLJCEKqoS2oHWtGRRM7oIFEdCH5IJKCsq79qxFEPwmQVid2uN0XuL/Rg+lKN9eAbTGcBttVZGaI11vGDEBUq9sNksVJXWUHofszCeD9jGz8pGoNvApRt8Swe2RnVtWcnQ+Zh+G105fPpp3RYNZBSBV9EJJ5la5IEv8KfAwjW7jGFg=="
}

解密函数

/**
 * 解密
 *
 * return mix
 */
function decryptData(string $encrypted_data)
{
 $key = env("EAS");
 $aesKey=base64_decode($key);
 $iv = 0;
 $aesIV=base64_decode($iv);
 $aesCipher=base64_decode($encrypted_data);
 $result=openssl_decrypt( $aesCipher, "AES-128-CBC", $aesKey, 1, $aesIV);
 return $result;
}

解密过程

echo decryptData("EaieI1W9gPK0zClNbA7P0T6svaSYq/1xejihTXNVSH0WyCjBIcP2xOwaAevaYgb4aeQ5NNRQaqbZgVvfJKfaLQ==");

// {"code":"10000","msg":"Success","mobile":"1342XXXXXXX"}

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