---
name: Object Capabilities
layout: standards
headings: ["Main","Literature"]
title: "Object Capability Model"
description: in which a capability describes a transferable right to perform one (or more) operations on a given object.
excerpt: >
  Computer scientist E. Dean Tribble stated that in smart contracts, identity-based access control did not support well dynamically changing permissions, compared to the object-capability model. He analogized the ocap model with giving a valet the key to one's car, without handing over the right to car ownership.
categories: ["Development"]
tags: ["oCap","JSON-LD","zCap","Cosmos"]
permalink: /development/object-capabilities/
canonical_url: "https://decentralized-id.com/development/object-capabilities/"
redirect_from: 
  - /web-standards/object-capabilities/
last_modified_at: 2023-05-22
---