EncryptionProvider Interface
Definition
Important
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Provides the methods for setting up permissions, applying the cryptography of the underlying encryption and decryption, and user authentication.
public interface class EncryptionProvider[System.Runtime.InteropServices.Guid("000CD809-0000-0000-C000-000000000046")]
public interface EncryptionProvider[<System.Runtime.InteropServices.Guid("000CD809-0000-0000-C000-000000000046")>]
type EncryptionProvider = interfacePublic Interface EncryptionProvider- Attributes
Remarks
Encryption providers are implemented through custom COM add-ins. You are provided with storage within Office documents for add-in specific information to store whatever information you need to encrypt, decrypt, apply rights, and display permission setup or authentication user interfaces.
Methods
| Authenticate(Object, Object, UInt32) |
Used to determine whether the user has the proper permissions to open the encrypted document. |
| CloneSession(Int32) |
Creates a second, working copy of the EncryptionProvider object’s encryption session for a file that is about to be saved. |
| DecryptStream(Int32, String, Object, Object) |
Decrypts and returns a stream of encrypted data for a document. |
| EncryptStream(Int32, String, Object, Object) |
Encrypts and returns a stream of data for a document. |
| EndSession(Int32) |
Ends the current encryption session. |
| GetProviderDetail(EncryptionProviderDetail) |
Displays information about the encryption of the current document. |
| NewSession(Object) |
Used by the EncryptionProvider object to create a new encryption session. This session is used by the provider to cache document-specific information about the encryption, users, and rights while the document is in memory. |
| Save(Int32, Object) |
Saves an encrypted document. |
| ShowSettings(Int32, Object, Boolean, Boolean) |
Used to display a dialog of the encryption settings for the current document. |