X509_async.OCSP
type cert_id = X509.OCSP.cert_id
val create_cert_id : ?hash:[ `MD5 | `SHA1 | `SHA224 | `SHA256 | `SHA384 | `SHA512 ] -> X509.Certificate.t -> string -> cert_id
val cert_id_serial : cert_id -> string
val pp_cert_id : cert_id Fmt.t
module Request : sig ... end
module Response : sig ... end