DSPIP

Digital Signing of Physical Items Protocol

Internet-Draft: draft-midwestcyber-dspip-01

A cryptographic protocol for authenticating packages using digitally signed QR codes. Privacy-preserving delivery, anti-cloning protection, and cryptographic proof of delivery for shipping and logistics.

Visit DSPIP.io Developer Portal

Design Goals

Built on established standards with shipping-specific innovations

🔐

Cryptographic Auth

Verify package origin through digital signatures

🔒

Privacy Preservation

Encrypted recipient info during transit

🛡️

Anti-Cloning

Physical binding prevents QR duplication

🌐

Decentralized

No central authority for validation

📴

Offline Capable

Verify without network connectivity

✅

Delivery Confirmation

Cryptographic proof of successful delivery

How It Works

Create & Sign

Sender creates shipping payload, encrypts recipient info, and signs with private key to generate QR code.

Transit Scanning

Carriers scan QR at each custody transfer, verifying signatures via DNS-based public key lookup.

Privacy Decryption

Last mile provider decrypts recipient info using their private key for final delivery.

Delivery Proof

Challenge-response protocol provides cryptographic confirmation of successful delivery.

Privacy Modes

Choose the right level of security for your shipping needs

📦 Standard

Legacy Compatibility

Full recipient info visible for traditional shipping workflows. Ideal for business-to-business shipments.

🔐 Encrypted

Privacy-Preserving

Recipient encrypted with ECIES. Only the last mile provider can decrypt. Built for consumer privacy protection.

🛡️ Split-Key

Maximum Security

Physical anti-cloning labels with Ed25519 key pairs in scratch-off zones. For high-value shipments requiring offline verification.

Technical Specifications

Standard Curvesecp256k1

Split-Key CurveEd25519

SignatureECDSA + SHA-256

EncryptionECIES + AES-256-GCM

Key DistributionDNS TXT Records

EncodingQR Code (ISO 18004)

Explore the DSPIP Protocol

Review the full specification, try the online tools, or contribute to the project.

Visit DSPIP.io