Remote Approval
The certificate stays on the owner's phone, and every signature is approved there.
Hover to read more
eGuard Remote Sign represents a PIN-proof digital signature platform designed for India's DSC (Digital Signature Certificate) ecosystem. It enables USB cryptographic token signing of documents from PC applications while keeping the token and PIN secure on the device itself — signing occurs exclusively on the token chip.
Complete Signing Logs. No Token Sharing. No PIN Exposure.

eGuard offers four signing modes, selectable per certificate in the host application — choose the balance of security and convenience that fits each certificate.
The certificate stays on the owner's phone, and every signature is approved there.
Hover to read moreThe DSC stays on the PC; one PIN per session unlocks continuous bulk signing.
Hover to read moreThe DSC stays on the PC, but each signature needs a fresh code from your phone.
Hover to read moreSign straight from your own software over a secured local endpoint.
Hover to read moreFuture Proof Digital Signing
eGuard enables secure remote digital signatures without moving your USB token. Continue using Adobe Acrobat, GST, MCA, Income Tax, ICEGATE, Java signers, and other supported applications, while keeping your credentials protected at every step.
Maintain a complete history of every signing request, including timestamps, device details, application information, and approval status, for enhanced visibility and accountability.
Your PIN is entered only on your mobile device and never travels across the network or reaches the host computer, helping protect your credentials from unauthorized access.
The host computer works only with a secure digital fingerprint of the document, and your PIN is never placed on the network.
Every signing request is delivered directly to your registered mobile device, where you can review, approve, or reject it before any signature is created.
The signature is created inside the USB token's secure chip. Only the completed digital signature is returned to the requesting application.
Continue using your existing Digital Signature Certificates, USB tokens, and supported signing applications without changing your current workflow or infrastructure.
Security model
Unlike traditional digital signing, eGuard keeps your USB Token and PIN under your control and records every signature in a detailed audit log. Your PIN is never placed on the network, reducing the risk of unauthorized access by design.
TLS transport, XChaCha20-Poly1305 AEAD payloads and Ed25519 message signatures provide defence in depth on every hop.
Physical token (have), PIN (know) and bound mobile device (possess) — all three are required to produce a signature.
A fresh ephemeral X25519 key per message. Capturing one session reveals nothing about any other.
Signing is performed inside the USB token's hardware chip, and only the finished signature ever leaves it.
Workflow
Complete legally valid digital signatures without exposing your PIN or moving your USB token.
Plug your USB DSC token into your Android phone using an OTG adapter. Your token stays securely with you throughout the signing process.
Use Adobe Acrobat, the GST portal, MCA, Income Tax, a Java signer or any supported application. The PC sends only a secure fingerprint of the document.
Your phone receives an encrypted signing request. Review the request and verify its details before you approve it.
Enter your PIN only on your mobile device. The token signs the document locally and the finished signature is returned to your PC.
One account, every device — available on Android and iOS, plus Windows, macOS and Linux.
MOBILE APP
Android & iOS
Keep your USB DSC token connected to your phone. Receive signing requests, verify every transaction and approve signatures securely from anywhere.

App StoreHOST APPLICATION
Windows, macOS & Linux
Install the eGuard Host on your computer to enable secure remote signing with Adobe Acrobat, GST, MCA, Income Tax, ICEGATE and Java signers.
Windows
macOS
LinuxToken compatibility




Trusted Authorized Partner

Discover how eGuard helps businesses modernise Digital Signature Certificate workflows with enterprise-grade security, seamless integration and complete user control.
Get Started