Balancing Security and Deployability in the Selection of Attested TLS Protocol

This document analyzes the selection of Attested Transport Layer Security (aTLS) protocols, among pre-handshake, intra-handshake, and post-handshake aTLS protocols, focusing on the trade-off between theoretical security strength and practical deployability. The goal is to enable flexible, context-aware deployment of endpoint attestation while maintaining compatibility with existing infrastructure.