Protected Overridable Function GetChallengeIscl( _
ByRef challenge As Long, _
ByVal parameter As Long _
) As Boolean
A variable to be updated with the random number generated. This number is similar to a time stamp.
A value that indicates the current mutual authentication key.
true if the generation of the random number was successful; otherwise, false.
The generation of a random number can use a pool of random (or pseudo-random) data. If the pool is empty, the GetChallengeIscl method may fail. In this case, try to call GetChallengeIscl later in the application, when some random data has been added to the pool.
For an example, refer to SetIsclMutualAuthenticationAlgorithm.