ds355020 2011-07-14 19:03
浏览 211


Long time listener/first time caller

I have set up a test page as follows

<form action="" method="post">
<input type="text" name="value" width="20" max="30" value=""/>
<input type="submit" value="go"/>

with some PHP to encrypt the post data "value" and store it in a variable like so

$pubKey = openssl_pkey_get_public(".../public.pem");
openssl_public_encrypt($_POST["value"], $var, $pubKey);

echo $var;

also have tried

$publicKey = ".../public.pem";
$plaintext = $_POST['value'];

openssl_public_encrypt($plaintext, $encrypted, $publicKey);

echo $encrypted;

Keep getting the error

Warning: openssl_public_encrypt() [function.openssl-public-encrypt]: key parameter is not a valid public key

I created the keys with openssl using:

# generate a 1024 bit rsa private key, ask for a passphrase to encrypt it and save to file
openssl genrsa -des3 -out /path/to/privatekey 1024

# generate the public key for the private key and save to file

openssl rsa -in /path/to/privatekey -pubout -out /path/to/publickey

from this website http://andytson.com/blog/2009/07/php-public-key-cryptography-using-openssl/

also tried creating a key with this method:

openssl req \
  -x509 -nodes -days 365 \
  -newkey rsa:1024 -keyout mycert.pem -out mycert.pem

still same error. Sorry but the whole encryption this is cryptic to me. also not very familiar with openssl so code examples would be great.

  • 写回答

1条回答 默认 最新

  • drv13270 2011-07-14 19:12

    Your paths appear to be incorrect:

    $pubKey = openssl_pkey_get_public(".../public.pem");


    $publicKey = ".../public.pem";

    Should be

    $publicKey = "../public.pem";
    $pubKey = openssl_pkey_get_public("../public.pem");

    If the .pem file is in the parent directory, or:

    $publicKey = "./public.pem";
    $pubKey = openssl_pkey_get_public("./public.pem");

    if the .pem file is in the current working directory. Alternately, you can use absolute paths to be sure you are grabbing the correct file.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?



  • ¥15 workstation导入ovf文件,报错,怎么解决呢?
  • ¥15 关于#c语言#的问题:构成555单稳态触发器,采用LED指示灯延时时间,对延时时间进行测量并显示(如楼道声控延时灯)需要Proteus仿真图和C语言代码
  • ¥50 神舟笔记本,没有linux的驱动,装的Ubuntu系统,想把风扇速度调到最大
  • ¥15 workstation加载centos进入emergency模式,查看日志报警如图,怎样解决呢?
  • ¥50 如何用单纯形法寻优不能精准找不到给定的参数,并联机构误差识别,给定误差有7个?matlab
  • ¥15 workstation加载centos进入emergency模式,查看日志报警如图,没有XFS,怎样解决呢?
  • ¥15 应用商店如何检测在架应用内容是否违规?
  • ¥15 Ubuntu系统配置PX4
  • ¥50 nw.js调用activex
  • ¥15 数据库获取信息反馈出错,直接查询了ref字段并且还使用了User文档的_id而不是自己的