Generates an X.509 certificate revocation list (CRL) object and initializes it with the data read from the given input stream <code>is</code>.
@param is an input stream with the CRL data.
@return an X.509 CRL object initialized with the data from the input stream.
@exception CRLException on parsing errors.
See Implementation
Generates an X.509 certificate revocation list (CRL) object and initializes it with the data read from the given input stream <code>is</code>.
@param is an input stream with the CRL data.
@return an X.509 CRL object initialized with the data from the input stream.
@exception CRLException on parsing errors.