---
date: 2021-04-18
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: ["Web Standards"]
tags: ["oCap","JSON-LD","zCap","Cosmos"]
permalink: web-standards/object-capabilities/
last_modified_at: 2023-05-22
---