Foxit PDF RDK

Public Member Functions | List of all members
CustomSecurityHandler Class Reference
Inheritance diagram for CustomSecurityHandler:

## Public Member Functions
| constructor ()
| Constructor.
| Initialize (encrypt_data, callback, encrypt_info)
| Initialize current custom security handler. More...
Public Member Functions inherited from SecurityHandler
| constructor ()
| Constructor.
| GetSecurityType ()
| Get the encryption type of current security handler. More...
| IsEmpty ()
| Check whether current object is empty or not. More...

## Additional Inherited Members
Static Public Attributes inherited from SecurityHandler
static | e_CipherAES
| Use AES encryption algorithm, with the key length be 16 bytes (as AES-128) or 32 bytes (as AES-256, only supported in PDF 2.0).
static | e_CipherNone
| Enumeration for Encryption Algorithm. More...
static | e_CipherRC4
| Use RC4 encryption algorithm, with the key length between 5 bytes and 16 bytes.

## Detailed Description

This class represents a custom security handler, used for custom encryption.

See also
  SecurityHandler

## Member Function Documentation

## ◆ Initialize()

CustomSecurityHandler.Initialize | ( | encrypt_data | ,
|  | callback | ,
|  | encrypt_info |
| ) |  |

Initialize current custom security handler.

If this function is successfully, Foxit PDF SDK will take over the input security callback object and user should not release this callback object directly anymore; otherwise unexpected crash may occurs later.
Foxit PDF SDK may release the security callback object by callback function SecurityCallback.Release, when current security handler is released and find that the callback object has not been used by other object. So, user is recommended not to use the security callback object any more, after current security handler is released.

Parameters

  [in] | encrypt_data | A custom encrypt data object.
  [in] | callback | A valid CustomSecurityCallback object, which is inherited and implemented by user for their own encryption and description algorithm. It should not be null.
  [in] | encrypt_info | The encryption information,which will be stored to document encryption dictionary. This can be an empty string. Default value: an empty string.

Returns
  true means success, while false means failure.