Volatile Data Objects

A CSP maintains session key objects and hash objects in volatile memory. These objects are created using the CPGenKey and CPCreateHash functions, respectively. These objects are destroyed using CPDestroyKey and CPDestroyHash. They must be destroyed when their associated key container or user context is released by CPReleaseContext.

The objects maintained in volatile memory are accessed using their handles as shown below.

The CRYPT_VERIFYCONTEXT flag can be passed as the dwFlags parameter to CPAcquireContext to enable that function to create volatile private keys. Volatile private keys are required for PROV_RSA_SCHANNEL and PROV_DH_SCHANNEL CSPs.