+ Acquire::https[::repo.domain.tld]::CrlFile "/path/to/all/crl.pem";
+
+ Like previous knob but for passing the list of CRL files (in PEM
+ format) to be used to verify revocation status. Again, if the
+ option is defined with no specific mirror (probably makes little
+ sense), this CRL information is used for all defined https entries
+ in sources.list file. In a mirror specific context, it only applies
+ to that mirror.
+
+ Acquire::https[::repo.domain.tld]::IssuerCert "/path/to/issuer/cert.pem";
+
+ Allows to constrain the issuer of the server certificate (for all
+ https mirrors or a specific one) to a specific issuer. If the
+ server certificate has not been issued by this certificate,
+ connection fails.
+