Implementing Hardware Security Modules (HSM) in cloud architecture.

Senior-level cryptography focuses on advanced mathematical foundations, post-quantum readiness, and the integration of security into large-scale distributed systems.

As a senior, you must evaluate the trade-offs between performance and security. For example, ECC offers shorter keys for the same security level as RSA, making it ideal for mobile devices. However, the advent of quantum computers necessitates a transition to Lattice-based or Code-based cryptography that Shor's algorithm cannot easily break.