⏳ Available Soon

ESDC for CloudPOS.vu

Name: CloudPOS.vu E-SDC
Brand: CloudPOS.vu

CloudPOS.vu E-SDC is currently in development and will be available soon. It is planned as a software-based External Sales Data Controller for Vanuatu fiscalization with local smart-card signing.

Explore Features How It Works

Manufactured by ReefStack Technologies

Why E-SDC?

Vanuatu requires every business to issue digitally signed fiscal invoices. Without an E-SDC, every sale needs an internet round-trip to the cloud — and stops when the connection drops.

📶

Works Offline

Sign invoices on the smart card with no internet. Queue encrypted audit data and sync automatically when you reconnect.

⚡

Instant Signing

No per-invoice network round-trip. No PAC code per sale. The card signs locally in milliseconds.

🛡️

Full TaxCore Compliance

QR verification URLs, fiscal journals, AES-256 encrypted audit packages, all TaxCore command types — built to spec.

Key Features

Everything needed for compliant fiscalization, in one small Windows application.

🔑

Local Smart-Card Signing

Every receipt is signed by the government TaxCore secure element — a legal fiscal document, no cloud dependency.

🖥️

System Tray Application

Runs quietly in the background. Status, PIN entry, taxes, and audit progress — all visible from the tray icon.

💾

USB Local-Audit Fallback

If the internet is down for a long time, offload queued invoices to a USB stick and deliver physically.

📦

Single Executable

No installer, no runtime dependencies. Copy one ~5 MB .exe to the PC and run.

📊

Dual Logging

A 10 MB debug log for troubleshooting, plus a separate 30-day accreditation error log — both human-readable.

🇻🇺

Built for Vanuatu

Pre-seeded with Vanuatu tax rates. Integrates with CloudPOS.vu out of the box over loopback HTTP.

How It Works

The E-SDC sits between CloudPOS.vu and the smart card, signing invoices locally and syncing audit data when online.

  ┌──────────────┐  HTTP/JSON (loopback)  ┌──────────────┐  APDU (ISO 7816)  ┌──────────────┐
  │  CloudPOS.vu │ ──────────────────────►│  E-SDC       │ ─────────────────►│  Smart Card  │
  │  (POS)       │ ◄──────────────────────│              │ ◄─────────────────│  (SE applet) │
  └──────────────┘   signed fiscal receipt└──────┬───────┘                   └──────────────┘
                                               │ HTTPS + PKI mTLS (when online)
                                               ▼
                                       ┌──────────────────┐
                                       │  TaxCore.API     │
                                       └──────────────────┘

  Normal sale → sign on card → return receipt → queue audit → sync later

Technical Specifications

Manufacturer	ReefStack Technologies
Product	ESDC for CloudPOS.vu
Type	Software-based E-SDC (TaxCore v3)
Platform	Windows 10 / 11 (64-bit)
Distribution	Single native executable (~5 MB)
Card reader	Any PC/SC-compatible USB CCID reader
POS integration	CloudPOS.vu via loopback HTTP (TaxCore v3 protocol)
Signing	On-card via TaxCore Secure Element (APDU ISO 7816)
Audit encryption	AES-256-CBC + RSA-PKCS#1 key wrap
Connectivity	Internet for init + remote audit; offline signing supported