DefaultFileEncryption Property
The default encryption mode to use when creating files and alternate streams.
Syntax
public int getDefaultFileEncryption(); public void setDefaultFileEncryption(int defaultFileEncryption);
Remarks
This property specifies the default encryption mode that the component should use when creating files and alternate streams. Valid values are:
| CBFSSTORAGE_EM_NONE | 0x0 | Don't use encryption. |
| CBFSSTORAGE_EM_DEFAULT | 0x1 | Use default encryption (CBFSSTORAGE_EM_XTS_AES256_PBKDF2_HMAC_SHA256). |
| CBFSSTORAGE_EM_XTS_AES256_PBKDF2_HMAC_SHA256 | 0x2 | Use AES256 encryption with PBKDF2 key derivation based on a HMAC_SHA256 key hash. |
| CBFSSTORAGE_EM_CUSTOM256_PBKDF2_HMAC_SHA256 | 0x3 | Use event-based custom 256-bit encryption with PBKDF2 key derivation based on a HMAC_SHA256 key hash.
256-bit (32-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM512_PBKDF2_HMAC_SHA256 | 0x4 | Use event-based custom 512-bit encryption with PBKDF2 key derivation based on a HMAC_SHA256 key hash.
512-bit (64-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM1024_PBKDF2_HMAC_SHA256 | 0x5 | Use event-based custom 1024-bit encryption with PBKDF2 key derivation based on a HMAC_SHA256 key hash.
1024-bit (128-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM256_CUSTOM_KEY_DERIVE | 0x23 | Use event-based custom 256-bit encryption with custom key derivation.
256-bit (32-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM512_CUSTOM_KEY_DERIVE | 0x24 | Use event-based custom 512-bit encryption with custom key derivation.
512-bit (64-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM1024_CUSTOM_KEY_DERIVE | 0x25 | Use event-based custom 1024-bit encryption with custom key derivation.
1024-bit (128-byte) block size. |
| CBFSSTORAGE_EM_CUSTOM256_DIRECT_KEY | 0x43 | Use event-based custom 256-bit encryption with no key derivation.
256-bit (32-byte) block size. Useful for cases where the password is an identifier for an external key and should not be used for key derivation. |
| CBFSSTORAGE_EM_CUSTOM512_DIRECT_KEY | 0x44 | Use event-based custom 512-bit encryption with no key derivation.
512-bit (64-byte) block size. Useful for cases where the password is an identifier for an external key and should not be used for key derivation. |
| CBFSSTORAGE_EM_CUSTOM1024_DIRECT_KEY | 0x45 | Use event-based custom 1024-bit encryption with no key derivation.
1024-bit (128-byte) block size. Useful for cases where the password is an identifier for an external key and should not be used for key derivation. |
| CBFSSTORAGE_EM_UNKNOWN | 0xFF | Unidentified or unknown encryption. |
Applications that use custom encryption must implement at least the DataDecrypt and DataEncrypt events; and certain custom encryption modes may also require that the HashCalculate or KeyDerive event be implemented as well. Please refer to the Encryption topic for more information.
Applications that set this property to a value other than CBFSSTORAGE_EM_NONE (the default) should also specify a default encryption password using the DefaultFilePassword property.
Default Value
0