I-D Action: draft-prakash-aip-01.txt

Internet-Draft draft-prakash-aip-01.txt is now available.

   Title:   Agent Identity Protocol (AIP): Verifiable Delegation for AI Agent Systems
   Author:  Sunil Prakash
   Name:    draft-prakash-aip-01.txt
   Pages:   22
   Dates:   2026-08-19

Abstract:

   This document specifies the Agent Identity Protocol (AIP), a protocol
   for verifiable, delegable identity for AI agent systems.  AIP
   introduces Invocation-Bound Capability Tokens (IBCTs) that bind
   identity, authorization, scope constraints, and provenance into a
   single cryptographic artifact.  Two token modes are defined: a
   compact mode using JSON Web Tokens (JWT) with Ed25519 signatures for
   single-hop interactions, and a chained mode using Biscuit tokens with
   append-only blocks and Datalog policy evaluation for multi-hop
   delegation chains.  Protocol bindings are specified for the Model
   Context Protocol (MCP), Agent-to-Agent Protocol (A2A), and generic
   HTTP APIs.  The protocol addresses authentication gaps in current AI
   agent infrastructure where a survey of approximately 2,000 MCP
   servers found all lacked authentication.  This revision specifies a
   normative verification algorithm, defines the canonical policy
   encoding for chained mode, describes how AIP composes with workload
   identity systems such as SPIFFE, and maps AIP against the cross-
   organization delegation requirements enumerated in
   [I-D.reece-wimse-cross-org-delegation].

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-prakash-aip/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-prakash-aip-01.html

A diff from the previous version is available at:
https://author-tools.ietf.org/iddiff?url2=draft-prakash-aip-01

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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