Foxit PDF SDK
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Public Member Functions | |
DRMSecurityHandler () | |
Constructor function. | |
DRMSecurityHandler (SecurityHandler other) | |
Constructor, with parent class object. More... | |
synchronized void | delete () |
Clean up related resources immediately. More... | |
String | getDRMValue (String key) throws com.foxit.sdk.PDFException |
Get the DRM value for a specified parameter. More... | |
boolean | initialize (DRMEncryptData encrypt_data, String file_id, String initial_key) throws com.foxit.sdk.PDFException |
Initialize current DRM security handler. More... | |
boolean | setDRMValue (String key, String value) throws com.foxit.sdk.PDFException |
Set the DRM value for a specified parameter. More... | |
boolean | verifyEncryptionParams () throws com.foxit.sdk.PDFException |
Verify encryption parameters. More... | |
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SecurityHandler () | |
Constructor. | |
SecurityHandler (SecurityHandler other) | |
Constructor, with another security handler object. More... | |
int | getSecurityType () |
Get the encryption type of current security handler. More... | |
boolean | isEmpty () |
Check whether current object is empty or not. More... | |
Additional Inherited Members | |
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static final int | e_CipherAES = 2 |
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 final int | e_CipherNone = 0 |
Not use encryption algorithm. | |
static final int | e_CipherRC4 = 1 |
Use RC4 encryption algorithm, with the key length between 5 bytes and 16 bytes. | |
This class represents a Foxit DRM(Digital Right Management) security handler, used for Foxit DRM encryption.
com.foxit.sdk.pdf.DRMSecurityHandler.DRMSecurityHandler | ( | SecurityHandler | other | ) |
Constructor, with parent class object.
[in] | other | Parent class object. |
synchronized void com.foxit.sdk.pdf.DRMSecurityHandler.delete | ( | ) |
Clean up related resources immediately.
Reimplemented from com.foxit.sdk.pdf.SecurityHandler.
String com.foxit.sdk.pdf.DRMSecurityHandler.getDRMValue | ( | String | key | ) | throws com.foxit.sdk.PDFException |
Get the DRM value for a specified parameter.
[in] | key | A parameter string as the key name. It should not be an empty string. Followings are pre-defined key names:
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boolean com.foxit.sdk.pdf.DRMSecurityHandler.initialize | ( | DRMEncryptData | encrypt_data, |
String | file_id, | ||
String | initial_key | ||
) | throws com.foxit.sdk.PDFException |
Initialize current DRM security handler.
[in] | encrypt_data | A certificate encrypt data object. In the encryption data, cipher type should not be com.foxit.sdk.pdf.SecurityHandler.e_CipherNone . |
[in] | file_id | The file identity string. |
[in] | initial_key | The user specified initial key for encryption. |
boolean com.foxit.sdk.pdf.DRMSecurityHandler.setDRMValue | ( | String | key, |
String | value | ||
) | throws com.foxit.sdk.PDFException |
Set the DRM value for a specified parameter.
[in] | key | A parameter string as the key name. It should not be an empty string. Followings are pre-defined key names:
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[in] | value | New value string for specified parameter. |
boolean com.foxit.sdk.pdf.DRMSecurityHandler.verifyEncryptionParams | ( | ) | throws com.foxit.sdk.PDFException |
Verify encryption parameters.
Foxit DRM maintains a set of encryption parameters for application purpose. Encryption parameters are stored in PDF file and protected by verification algorithm. So application can call this function to verify a DRM encrypted PDF document. If the verification is failed, that means the PDF document might be distorted.