Algorithm object
[CAPICOM is a 32-bit only component that is available for use in the following operating systems: Windows Server 2008, Windows Vista, Windows XP. Instead, use the AlgorithmIdentifier Class in the System.Security.Cryptography.Pkcs namespace.]
The Algorithm object specifies the algorithm used for signing, enveloping, and encrypting operations.
When to use
The Algorithm object is used to perform the following tasks:
- Set or retrieve the algorithm to be used.
- Set or retrieve the key length.
Note
CAPICOM attempts to use the system default cryptographic service provider (CSP). If that CSP cannot provide the requested algorithm or key length, CAPICOM searches for an available Microsoft-provided CSP that can handle the requested algorithm and key length, in this order of availability: Microsoft Enhanced Cryptographic Provider, Microsoft Strong Cryptographic Provider, Microsoft Base Cryptographic Provider.
Members
The Algorithm object has these types of members:
Properties
The Algorithm object has these properties.
| Property | Access type | Description |
|---|---|---|
| KeyLength |
Read/write |
Sets or retrieves the length of the key. |
| Name |
Read/write |
Sets or retrieves the algorithm used for signing, enveloping, and encrypting operations. This is the default property. |
Remarks
The Algorithm object cannot be created.
Requirements
| Requirement | Value |
|---|---|
| End of client support |
Windows Vista |
| End of server support |
Windows Server 2008 |
| Redistributable |
CAPICOM 2.0 or later on Windows Server 2003 and Windows XP |
| Header |
|
| DLL |
|
See also