Cryptographic Attestation & Agent Identity Verification

Welcome to this educational lecture on Cryptographic Attestation & Agent Identity Verification, part of the comprehensive course Agentic AI Security, Red-Teaming & Guardrails. As artificial intelligence agents take on increasingly autonomous roles and execute high-stakes workflows, ensuring their authenticity and establishing accountability become critical operational requirements. This session explores how robust cryptographic frameworks secure agent interactions in complex digital ecosystems. During this lecture, we examine Public Key Infrastructure (PKI) tailored for autonomous agents, Decentralized Identifiers (DIDs), and Verifiable Agent Credentials to establish immutable roots of trust. You will also learn about cryptographic proof of inference mechanisms that guarantee model outputs originate from verified computations, alongside non-repudiation techniques essential for tracing automated actions securely. By the end of this lecture, learners will understand how to design and implement cryptographic identity systems that prevent identity spoofing, verify agent authenticity, and maintain a verifiable, tamper-resistant audit trail of all automated decisions. Key topics covered: Public Key Infrastructure (PKI) for Agents Decentralized Identifiers (DIDs) Cryptographic Proof of Inference Verifiable Agent Credentials Non-Repudiation Mechanisms