Securing the Digital Gateway: A Comprehensive Review of Identity and Access Management in Modern Application Security | IJCT Volume 13 – Issue 3 | IJCT-V13I3P86
Securing the Digital Gateway: A Comprehensive Review of Identity and Access Management in Modern Application Security | IJCT Volume 13 – Issue 3 | IJCT-V13I3P86
As Application Security controls are increasingly moving towards curbing attacks at the entry point of an application, where users attempt to access the application resources, the category of Identity Management has gained immense importance in the realm of application security. This paper gives a short snapshot of Identity Management and its role in protecting the various applications at Enterprise as well as Consumer facing applications. The paper starts with an introduction to Identity Management giving details of Digital Identities, the Identity Management (IM) Life Cycle, various Authentication & Authorization Mechanisms along with standards and protocols that are relevant for Identity Federation such as OAuth, OpenID Connect, and SAML. The paper thereafter introduces the Application Security domain along with Vulnerabilities and controls to address the same. Also, various identities management controls that can be put in place to help eliminate such vulnerabilities in an application like Principle of Least Privilege, Defense-in-Depth etc. Following this the paper elaborates on the various aspects of authentication starting from the traditional native application or user Password based authentication to step up Multifactor authentication, Biometric Authentication, Password less authentication and Adaptive Risk based Authentication. Similarly, it also covers Authorization and Access Control Models such as Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC), Policy based access control (PBAC), Fine Grained Access Control along with Delegated Authorization. The paper then moves towards challenges faced in an application where an Identity and Access Management (IAM) solution is implemented, such as Scalability and Performance, User Privacy and Governance- General Data Protection Regulation (GDPR), Health Insurance Portability and Accountability Act (HIPAA), Financial integrity – Sarbanes-Oxley (SOX) requirements, Identity Federation and SSO challenges, Identity and Access Management for Identity Life Cycle such as Provisioning and Deprovisioning and Threats such as Identity Spoofing, Session Hijacking and Insider Threats. At the end the paper covers Emerging Trends and Technologies in the space of Identity Management such as Decentralized Identity, Blockchain etc., Artificial Intelligence for Anomaly Detection etc., Zero Trust Security Model and Identity as a Service (IDaaS). This paper will focus on human identities defined later and does not elaborate on the privileged or machine identities or non-human identities.
Keywords
Identity Management, Application Security, Authentication, Authorization, Access Control, Multi-Factor Authentication (MFA), Single Sign-On (SSO), Identity Federation, OAuth, OpenID Connect, SAML, Role-Based Access Control (RBAC), Attribute-Based Access Control (ABAC), Zero Trust, Identity as a Service (IDaaS), Policy based access control (PBAC), Cybersecurity, Open Worldwide Application Security Project (OWASP), Privacy Compliance, Identity Lifecycle Management
Conclusion
Identity management is a key enabler of application security, ensuring that access to sensitive resources is constrained by authorized users and devices. Identity management avoids the risks of unauthorized access, identity theft, and insider threats, which are among the most pressing challenges in the modern application environment. The challenges in identity management include scalability in large-scale and federated environments, privacy regulations (e.g., GDPR, HIPAA), complexity in SSO and Federation, identity lifecycle management issues (timely provisioning and de-provisioning), and sophisticated threats (e.g., identity spoofing, session hijacking). Strategies for mitigating these challenges include the use of decentralized (e.g., blockchain) identity management approaches that provide enhanced user control and trust, the use of AI-based anomaly detection approaches, the use of Zero Trust Architecture that enforces continuous access validation with least privilege access, and the adoption of IDaaS (Identity as a Service) designs that provide flexibility in scalability management while preserving user privacy and security. Future research will focus on overcoming scalability and integration challenges in decentralized blockchain identity management approaches, on enhancing the accuracy and explainability of AI-based anomaly detection systems, on developing seamless integration approaches for Zero Trust Architecture in evolving application architectures, and on developing effective privacy-preserving mechanisms for cloud-based identity management. Technological advancements will bring self-sovereign identities into widespread use, integrate blockchain and AI-based systems to enhance trust, and develop adaptive identity management systems that address evolving insider threats and novel attack patterns (Khayer et al., 2025; Diro et al., 2024).
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How to Cite This Paper
SHARAD SHARMA (2026). Securing the Digital Gateway: A Comprehensive Review of Identity and Access Management in Modern Application Security. International Journal of Computer Techniques, 13(3). ISSN: 2394-2231.
