- load_crl(+Stream, -CRL) is det
- Loads a CRL from a PEM- or DER-encoded stream, returning a term
containing terms hash/1, signature/1, issuer_name/1 and
revocations/1, which is a list of revoked/2 terms. Each
revoked/2 term is of the form
revoked(+Serial, DateOfRevocation)