Verifiable agent-to-agent (A2A) identity. Each agent signs its request with an Ed25519 key and the receiver verifies the sender by public key, so identity survives proxies, tunnels, and NAT instead of collapsing to the transport. Runnable two-container demo on Pilot Protocol request-signing (reqsig).
nat-traversal multi-agent ed25519 ai-agents request-signing a2a message-signing agent-framework agent-authentication agent-identity agent-to-agent spoofing-prevention cryptographic-identity pilot-protocol sender-verification
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Updated
Aug 12, 2026