Cryptography Data Types

The following data types are used by cryptography functions, interfaces, and objects.

Data type	Description
ALG_ID	Specifies algorithm identifiers.
HCERT_SERVER_OCSP_RESPONSE	Represents a handle to an OCSP response associated with a server certificate chain.
HCRYPTHASH	Specifies handles to a hash object.
HCRYPTKEY	Specifies handles to cryptographic keys.
HCRYPTOIDFUNCADDR	Represents a handle to a function that can be installed by using an object identifier (OID).
HCRYPTOIDFUNCSET	Represents a handle to a set of functions that can be installed by using an OID.
HCRYPTPROV_LEGACY	Used to replace the HCRYPTPROV data type where the HCRYPTPROV data type is no longer used.
HCRYPTPROV_OR_NCRYPT_KEY_HANDLE	Specifies a handle to a CryptoAPI cryptographic service provider (CSP) or CNG CSP.
HCRYPTPROV	Specifies a handle to a CryptoAPI CSP.
KEYSVCC_HANDLE	Specifies handles to the key service.