---
name: "ocspd"
section: "1"
platform: "macos"
package: "security_ocspd"
version: "55148"
release: "macOS 26.5"
platforms: ["macos"]
url: "https://new.carta.tech/ocspd"
---

# ocspd(1)

OCSP and CRL Daemon

## NAME

**ocspd** – OCSP and CRL Daemon

## SYNOPSIS

**ocspd**

## DESCRIPTION

**ocspd** performs caching and network fetching of Certificate Revocation Lists (CRLs) and Online Certificate Status Protocol (OCSP) responses. It is used by Security.framework during certificate verification. Security.framework communicates with **ocspd** via a private RPC interface. When Security.framework determines that a CRL is needed, or that it needs to perform an OCSP transaction, it performs an RPC to  **ocspd** which then examines its cache to see if the appropriate CRL or OCSP response exists and is still valid. If so, that entity is returned to Security.framework. If no entry is found in cache,  **ocspd** obtains it from the network, saving the result in cache before returning it to Security.framework.

This command is not intended to be invoked directly.

## FILES

/private/var/db/crls/crlcache.db	CRL cache\
 /private/var/db/crls/ocspcache.db	OCSP response cache

## HISTORY

**ocspd** was first introduced in Mac OS X version 10.4 (Tiger).