Public Member Functions | |
java.lang.Object | createContext (String filter, String sub_filter, String encrypt_info) |
A callback function used to create context for encryption and decryption. More... | |
boolean | encryptData (java.lang.Object context, int obj_num, int gen_num, byte[] src_data, byte[] out_dst_buffer) |
A callback function used to get encrypted data. More... | |
int | getCipher (java.lang.Object context) |
A callback function used to get the cipher type. More... | |
int | getDecryptedSize (java.lang.Object context, int src_data_size) |
A callback function used to get the estimated decrypted data size. More... | |
int | getEncryptedSize (java.lang.Object context, int obj_num, int gen_num, byte[] src_data) |
A callback function used to get the estimated encrypted size. More... | |
int | getSecurityType () |
Get the encryption type of security callback. More... | |
int | getUserPermissions (java.lang.Object context, int user_permission) |
A callback function used to get the user permissions. More... | |
boolean | isOwner (java.lang.Object context) |
A callback function used to check if current user is the owner of the PDF document. More... | |
boolean | releaseContext (java.lang.Object context) |
A callback function used to release the context for encryption and decryption. More... | |
java.lang.Object | startDecryptor (java.lang.Object context, int obj_num, int gen_num) |
A callback function used to start a decryption. More... | |
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int | getSecurityType () |
Get the encryption type of security callback. More... | |
void | release () |
A callback function used to release current callback object itself. More... | |
This class represents a callback object for custom decryption and encryption. If user wants to use custom security callback, user should inherit this callback class and implement the pure virtual functions (as callback functions), and then register the custom security callback object to Foxit PDF SDK by function common.Library.registerSecurityCallback with with any custom filter name (following the PDF name conventions). Function common.Library.unregisterSecurityCallback can be called to unregister the security callback object with the registered filter name.
java.lang.Object com.foxit.sdk.pdf.CustomSecurityCallback.createContext | ( | String | filter, |
String | sub_filter, | ||
String | encrypt_info | ||
) |
A callback function used to create context for encryption and decryption.
[in] | filter | The encryption filter of the PDF document. |
[in] | sub_filter | The sub filter of the PDF document. |
[in] | encrypt_info | The encryption information of the PDF document. |
boolean com.foxit.sdk.pdf.CustomSecurityCallback.encryptData | ( | java.lang.Object | context, |
int | obj_num, | ||
int | gen_num, | ||
byte [] | src_data, | ||
byte [] | out_dst_buffer | ||
) |
A callback function used to get encrypted data.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
[in] | obj_num | The object number for a PDF object. |
[in] | gen_num | The generation number for a PDF object. |
[in] | src_data | The buffer which stores the plain text to be encrypted. |
[out] | out_dst_buffer | Output parameter that receives the encrypted content. |
int com.foxit.sdk.pdf.CustomSecurityCallback.getCipher | ( | java.lang.Object | context | ) |
A callback function used to get the cipher type.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
int com.foxit.sdk.pdf.CustomSecurityCallback.getDecryptedSize | ( | java.lang.Object | context, |
int | src_data_size | ||
) |
A callback function used to get the estimated decrypted data size.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
[in] | src_data_size | Size of source data which is to be decrypted. |
int com.foxit.sdk.pdf.CustomSecurityCallback.getEncryptedSize | ( | java.lang.Object | context, |
int | obj_num, | ||
int | gen_num, | ||
byte [] | src_data | ||
) |
A callback function used to get the estimated encrypted size.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
[in] | obj_num | The object number for a PDF object. |
[in] | gen_num | The generation number for a PDF object. |
[in] | src_data | The buffer which stores the plain text to be encrypted. |
int com.foxit.sdk.pdf.CustomSecurityCallback.getSecurityType | ( | ) |
Get the encryption type of security callback.
int com.foxit.sdk.pdf.CustomSecurityCallback.getUserPermissions | ( | java.lang.Object | context, |
int | user_permission | ||
) |
A callback function used to get the user permissions.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
[in] | user_permission | Original permission settings of the document. Please refer to values starting from com.foxit.sdk.pdf.PDFDoc.e_PermPrint and this would be one or combination of these values. |
boolean com.foxit.sdk.pdf.CustomSecurityCallback.isOwner | ( | java.lang.Object | context | ) |
A callback function used to check if current user is the owner of the PDF document.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
boolean com.foxit.sdk.pdf.CustomSecurityCallback.releaseContext | ( | java.lang.Object | context | ) |
A callback function used to release the context for encryption and decryption.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
java.lang.Object com.foxit.sdk.pdf.CustomSecurityCallback.startDecryptor | ( | java.lang.Object | context, |
int | obj_num, | ||
int | gen_num | ||
) |
A callback function used to start a decryption.
[in] | context | The context for encryption and decryption, returned by callback function CustomSecurityCallback.createContext . |
[in] | obj_num | The object number for a PDF object. |
[in] | gen_num | The generation number for a PDF object. |