VECTOR 04 // CRYPTOGRAPHIC IDENTITY

IAM & Zero Trust Modernization

Hardware-bound FIDO2 WebAuthn authentication, RFC 9449 DPoP token binding, and ephemeral Just-In-Time (JIT) elevation to eliminate reverse-proxy session theft.

EXECUTION METHODOLOGY

4-Phase IAM Transformation Roadmap

PHASE 01

Auth Surface Audit

Mapping legacy MFA paths (SMS, push, TOTP), unconstrained bearer tokens, and standing admin accounts.

PHASE 02

FIDO2 Key Enforcement

Deprecating phishable MFA methods and deploying hardware-backed WebAuthn authentication policies.

PHASE 03

RFC 9449 DPoP Binding

Binding API session tokens to client private keys so stolen tokens cannot be replayed from attacker infrastructure.

PHASE 04

JIT Ephemeral Access

Eliminating permanent 24/7 root/admin credentials in favor of time-bounded, audited 60-minute elevations.

Covered Identity Surfaces

IdP Modernization: Okta FastPass, Microsoft Entra ID Conditional Access, Ping Identity.
API Token Cryptography: OAuth 2.0 DPoP (RFC 9449), Mutual TLS (mTLS), Token Exchange (RFC 8693).
Privileged Access: Teleport, AWS IAM Identity Center, GCP Workload Identity.
Session Revocation: OpenID Shared Signals and Events (SSE) & CAEP real-time logout.

Deliverables & Assurance

Production DPoP Middleware: Python, Go, and Node.js drop-in verification libraries.
IdP Policy Runbooks: Hardened Terraform templates for Okta / Entra ID.
JIT Access Blueprints: Ephemeral role assumption with automated Slack/PagerDuty sign-off.
Executive IAM Maturity Score: NIST SP 800-207 Zero Trust benchmark evaluation.

TECHNICAL ARTIFACT SPECIFICATION

RFC 9449 DPoP Sender-Constrained Token Header

HTTP HEADER: STATIC BEARER VS CRYPTOGRAPHIC DPOP RFC 9449 STANDARD

- Authorization: Bearer eyJhbGciOi... (Replayable if stolen from HAR or proxy)

# BhishmaSec Architecture: Key-Bound DPoP Token with Cryptographic Proof

+ Authorization: DPoP eyJhbGciOi... + DPoP: eyJ0eXAiOiJkcG9wK2p3dC... (Signed with client private key + HTTP method + URI thumbprint)