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What is the largest roadblock to SAML as it pertains to modern applications?

  1. Complexity of implementation

  2. Lack of support for open standards

  3. It was not originally designed for mobile apps

  4. Incompatibility with existing systems

The correct answer is: It was not originally designed for mobile apps

The largest roadblock to SAML (Security Assertion Markup Language) when it comes to modern applications is that it was not originally designed for mobile apps. SAML was created primarily for web-based single sign-on (SSO) between enterprise applications, which means its architecture aligns closely with the needs of traditional web applications. Modern applications, particularly mobile apps, often require more lightweight and efficient authentication methods due to their different user experiences and usage patterns. For example, mobile environments typically demand faster and more seamless authentication processes that can handle the constraints of mobile connectivity and performance. SAML’s reliance on browser redirects and its relatively heavyweight XML-based assertions can add latency and complexity, making it less suitable for mobile app environments where user experience is key. This limitation has led many developers to seek alternative standards, such as OAuth and OpenID Connect, which are more adept at addressing the needs of modern applications, especially in the mobile context. These alternatives provide better support for mobile-first development by offering simpler integration mechanisms and lighter-weight tokens.