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OAuth 2.0 Evolution, Grant Types and Best Practices for Secure Authorization in Web, Mobile, and API Platforms

Author(s) Arun Neelan
Country United States
Abstract OAuth 2.0, as defined in [1], is a widely adopted authorization protocol across various platforms, including web, mobile, and API-driven applications. It is built around access tokens, which define the scope, lifetime, and other critical access attributes, offering a secure and flexible way of managing resource access. This paper reviews the evolution, core components, and different token types as outlined in [1], focusing on their role in secure access management. Additionally, the paper provides a detailed analysis of the four primary grant types—Authorization Code, Implicit, Resource Owner Password Credentials, and Client Credentials—highlighting their functionality, advantages, and potential limitations. By examining these elements, this paper aims to guide all relevant stakeholders –including technologists, product team, security professionals, compliance team, end users and other partners -- in selecting the most suitable grant type for specific OAuth 2.0 implementations.
Keywords OAuth2.0, Authorization Protocols, Secure Authorization, API Security, Grant Types, OAuth Flows, Authorization Code Flow, Implicit Flow, Resource Owner Password Credentials Flow, Client Credentials Flow
Field Engineering
Published In Volume 3, Issue 7, July 2022
Published On 2022-07-06
Cite This OAuth 2.0 Evolution, Grant Types and Best Practices for Secure Authorization in Web, Mobile, and API Platforms - Arun Neelan - IJLRP Volume 3, Issue 7, July 2022. DOI 10.5281/zenodo.15051159
DOI https://doi.org/10.5281/zenodo.15051159
Short DOI https://doi.org/g88zzp
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