Cryptographic Libraries and Application Programming Interfaces Questions

Focuses on practical knowledge of standard cryptographic libraries and safe application programming interface design. Candidates should know common libraries and frameworks such as libsodium OpenSSL and Bouncy Castle and understand their trade offs in security performance portability and maintenance. Topics include when to use a library versus building a custom solution secure patterns for exposing cryptographic functionality through interfaces proper key management and storage common misuse patterns that introduce vulnerabilities and how to avoid them dependency and version management secure defaults and parameter choices and testing and validation strategies. Also includes awareness of interoperability compliance and performance implications when selecting and using cryptographic libraries.