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PHP下SSL加密解密、验证、签名方法技巧

Jun 13, 2016 am 08:49 AM
php ssl encrypt and decode sign verify

这篇文章主要介绍了PHP下SSL加密解密、验证、签名方法,方法很简单,欢迎大家阅读

超级简单,依赖于OpenSSL扩展,这里就不多废话了,直接奉上代码

签名:

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function sign($data) {

 //读取私钥文件

 $priKey = file_get_contents('key/rsa_private_key.pem');

  

 //转换为openssl密钥,必须是没有经过pkcs8转换的私钥

 $res = openssl_get_privatekey($priKey);

  

 //调用openssl内置签名方法,生成签名$sign

 openssl_sign($data, $sign, $res);

  

 //释放资源

 openssl_free_key($res);

  

 return $sign;

}

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验证:

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function verify($data, $sign) {

 //读取支付宝公钥文件

 $pubKey = file_get_contents('key/alipay_public_key.pem');

  

 //转换为openssl格式密钥

 $res = openssl_get_publickey($pubKey);

  

 //调用openssl内置方法验签,返回bool值

 $result = (bool)openssl_verify($data, $sign, $res);

   

 //释放资源

 openssl_free_key($res);

  

 return $result;

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解密

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function decrypt($content) {

  

 //读取商户私钥

 $priKey = file_get_contents('key/rsa_private_key.pem');

   

 //转换为openssl密钥,必须是没有经过pkcs8转换的私钥

 $res = openssl_get_privatekey($priKey);

  

 //声明明文字符串变量

 $result = '';

  

 //循环按照128位解密

 for($i = 0; $i < strlen($content)/128; $i++ ) {

  $data = substr($content, $i * 128, 128);

    

 //拆分开长度为128的字符串片段通过私钥进行解密,返回$decrypt解析后的明文

  openssl_private_decrypt($data, $decrypt, $res);

  

 //明文片段拼接

  $result .= $decrypt;

 }

  

 //释放资源

 openssl_free_key($res);

  

 //返回明文

 return $result;

}

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