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The ICspAlgorithm interface represents an algorithm implemented by a cryptographic provider. Providers are separate modules that implement encryption, hashing, signing, and key exchange (archival) algorithms. Similar providers are grouped together in a type. For example, the PROV_RSA_FULL type identifies providers that typically support the following algorithms. An individual provider can, however, choose to support fewer or more algorithms than those listed.
- Encryption: RC2, RC4
- Hashing: MD5, SHA
- Key Exchange: RSA
- Signature: RSA
A collection of ICspAlgorithm objects can be retrieved from an ICspInformation object. The ICspInformation object can be initialized from a provider name or type.
Inheritance
The ICspAlgorithm interface inherits from the IDispatch interface. ICspAlgorithm also has these types of members:
Methods
The ICspAlgorithm interface has these methods.
| ICspAlgorithm::get_DefaultLength Retrieves the default length of a key. |
| ICspAlgorithm::get_IncrementLength Retrieves a value, in bits, that can be used to determine valid incremental key lengths for algorithms that support multiple key sizes. |
| ICspAlgorithm::get_LongName Retrieves the full name of the algorithm. |
| ICspAlgorithm::get_MaxLength Retrieves the maximum permitted length for a key. |
| ICspAlgorithm::get_MinLength Retrieves the minimum permitted length for a key. |
| ICspAlgorithm::get_Name Retrieves the abbreviated algorithm name. |
| ICspAlgorithm::get_Operations Retrieves the operations that can be performed by the algorithm. |
| ICspAlgorithm::get_Type Retrieves the algorithm type. |
| ICspAlgorithm::get_Valid Retrieves a Boolean value that specifies whether the algorithm object is valid. |
| ICspAlgorithm::GetAlgorithmOid Retrieves the algorithm object identifier (OID). This method is web enabled. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | certenroll.h |