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API Authentication

Secure your APIs with confidence. Explore methods, protocols, and best practices for implementing robust authentication—from OAuth and JWT to zero-trust architectures—across modern API ecosystem

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RBAC Explained: The Basics of Role-Based Access Control

API SecurityApril 14, 2025

As cybersecurity takes the main stage, organizations face a significant challenge: how do you strike a balance between maintaining a high level of security and ensuring employees have enough data access to perform their jobs properly? Role-based access control (RBAC) is a solution that can support…

Kong

How to Implement Secure Access Control with OPA and Kong Gateway

API SecurityJanuary 8, 2025

Ensuring secure access to applications and APIs is critical. As organizations increasingly adopt microservices architectures and cloud native solutions, the need for robust, fine-grained access control mechanisms becomes paramount. This is where the combination of Open Policy Agent (OPA) and Kong…

Raja Ravi Varman

The Ultimate CORS Crash Course

Guide to CORS basics
PluginsDecember 9, 2024

In today's interconnected web ecosystem, modern applications frequently need to communicate across different domains, making Cross-Origin Resource Sharing (CORS) a fundamental concept for web developers to master. This comprehensive guide explores CORS from its basic principles to advanced…

Kong

How to Craft and Sign a Custom JWT in Kong Konnect

JWTJune 18, 2024

The JSON Web Token (JWT) is an open standard that allows information to be transferred securely between different parties. The token is digitally signed by using a private key (HMAC) or a public/private key (RSA) by building a JSON Web Signature (JWS). It guarantees that the JWT hasn’t been…

Jerome Guillaume

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Adopt a Zero Trust Approach with OAuth 2.0 Mutual TLS Client Authentication

Zero-TrustFebruary 19, 2024

In the modern IT stack, API gateways act as the first line of defense against attacks on backend services by enforcing authentication/authorization policies and validating and transforming requests. When backend services are protected with a token-based approach, client applications must obtain an…

Veena Rajarathna

Understanding Microsegmentation in Zero Trust Security

API SecurityFebruary 6, 2024

With digital transformation shifting networks into the cloud — from remote workforces to online banking — cyberattacks are growing more prevalent and sophisticated. Legacy security models like VPNs and perimeter-based firewalls are proving inadequate in addressing modern threats because perimeters…

Kong

Top GraphQL Security Vulnerabilities: Lessons Learned Analyzing 1,500+ Endpoints

API SecurityJanuary 29, 2024

With its flexible querying capabilities, GraphQL makes it easy to combine data from multiple sources into a single endpoint. GraphQL and API management go hand in hand to build next-generation API platforms. However, GraphQL's features can also introduce security risks if not properly…

Kong

Tightening Bearer Token Authentication with Proof-of-Possession Tokens

API AuthenticationNovember 15, 2023

In token-based architecture, tokens represent the client’s entitlement to access protected resources. Access tokens (or bearer tokens as they're commonly known) are issued by authorization servers after successful user authentication. The tokens are passed as credentials in the request to the…

Veena Rajarathna

Common API Authentication Methods

API AuthenticationOctober 12, 2023

As businesses expand and gain visibility, it’s natural that their API attack surfaces become more exposed — increasing the risk of dangerous data breaches. Protecting cloud communications and securing data in transit should be your organization’s top priority. API authentication mechanisms help…

Kong

Kong SAML Plugin: Examples and Usage

API AuthenticationOctober 11, 2023

This post is part of our Kong Champions series, where real Kong users walk you through technical challenges, use cases, and new technology they're using in their day-to-day. Sign up here to become a Kong Champion. As a Kong user, I've had the opportunity to dive deep into Kong's offerings. I've…

Samuele Chiocca

OpenID vs OAuth: Understanding API Security Protocols

API SecurityOctober 10, 2023

When it comes to digital identity, OpenID and OAuth are two peas in a pod, but they have their differences. OpenID connects you to relying parties using a single sign-on, while OAuth grants access tokens so you can give apps limited access. They both make authentication simple, seamless, and…

Axandria Shepard

Understand the Differences: API Authentication vs API Authorization

API AuthenticationJune 8, 2023

If you landed on this blog post, chances are that you care about keeping your API secure. It's an important topic to discuss: API exploits are on the rise, and you don't want unauthorized users accessing your data. A big part of that security is implementing API authentication and API…

Kong

What are API Keys? Overview and Use Cases

API ManagementMay 22, 2023

Application programming interfaces (APIs) allow software to communicate and share data. But how can those APIs confirm the identity of the clients theyre communicating with? API keys are one solution. API keys are unique codes for authenticating and authorizing access to the features, data, or…

Eric Pulsifer

GraphQL Authorization at the API Gateway with Kong Konnect and OPA

GraphQLMarch 23, 2023

In this blog we are going to learn about the technical challenges behind solving GraphQL authorization and how many organizations resolve it today. Then discuss how a Kong / OPA integration can help drive security standards in this space and bring some parity with REST API solutions. Last, we will…

Danny Freese

What is OAuth?

Kong Logo
API GatewayJanuary 26, 2023

OAuth (short for Open Authorization) is a popular, standardized API protocol that provides a secure way for services to quickly share resources for a seamless user experience. Examples of OAuth in action include giving a greeting card service access to your photo library to make a custom holiday…

Kong

Dynamic Routing Based on JWT Token’s Claim with Kong Konnect

Kong KonnectNovember 3, 2022

A common use case that is frequently requested is how to dynamically route requests based on authentication attributes. An example of this technique is routing requests to relevant upstream services based on claims contained in a JWT token. Admins would like all their clients to go to the same URI…

Shlomi Tubul
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