Encrypt the POST-GET Data when you Submit a Form: jCryption

jCryption is a JavaScript HTML-Form Encryption JQuery Plugin, which encrypts the POST/GET-Data that is sent when a form is submitted. For the calculation it uses the Multiple-precision and Barrett modular reduction libraries and JQuery. The data is encrypted on the client side (JavaScript) and decrypted on the server (PHP).


Features include:

  • It is easy to install, use and extend
  • RSA form data encryption up to 2048 bit
  • AjaxSubmit supported
  • no SSL required
  • Does not block the browser on calculations

jCryption first serializes the form, converts the string into hexadecimal values which is required to encrypt it. When the keypair was generated on the server, the script receives it, encrypts the string with the public key and sends it to the sever where the string will be decrypted. When this is done you have your original serialized string back which is equal to a normal form submit (GET or POST).

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