Checks that the specified date is within the certificate's
validity period, or basically if the certificate would be
valid at the specified date/time.
@param date the Date to check against to see if this certificate
is valid at that date/time.
@exception CertificateExpiredException if the certificate has expired
with respect to the <code>date</code> supplied.
@exception CertificateNotYetValidException if the certificate is not
yet valid with respect to the <code>date</code> supplied.
Checks that the specified date is within the certificate's validity period, or basically if the certificate would be valid at the specified date/time.
@param date the Date to check against to see if this certificate is valid at that date/time.
@exception CertificateExpiredException if the certificate has expired with respect to the <code>date</code> supplied. @exception CertificateNotYetValidException if the certificate is not yet valid with respect to the <code>date</code> supplied.