Description
Proxkey: overview
The proxkey is a password-protected USB crypto token that stores your Class 3 Digital Signature Certificate (DSC). The private key is generated inside the token’s secure chip and cannot be copied out, which is why India’s Controller of Certifying Authorities (CCA) requires Class 3 certificates to live on a FIPS-validated hardware token. Proxkey is one of the most widely used DSC tokens in India and works with most Certifying Authorities.
The proxkey meets the hardware requirements set by India’s Controller of Certifying Authorities (CCA) for Class 3 certificates.
Specifications
| Manufacturer | Watchdata Technologies Pte Ltd |
|---|---|
| Model | Proxkey (WatchKey ProX) |
| Security | FIPS 140-2 Level 3 validated cryptographic module |
| Serial number | Starts with WD |
| Interface | USB, plug and play |
| Works with | Class 3 signing, encryption and combo DSCs from CCA-licensed Certifying Authorities |
| Protection | PIN/password protected; locks after repeated wrong PIN attempts |
Where you use it
- GST, Income Tax, MCA, EPFO and DGFT filings that need a Class 3 DSC
- E-tenders and e-auctions on GeM, CPPP and state e-procurement portals
- Signing PDFs, contracts and invoices
- Renewing your DSC on the same token when it expires
How to set it up
- Install the token driver for your operating system (we share the right installer after purchase).
- Plug in the token and set a strong PIN when prompted.
- Download your DSC to the token using the Certifying Authority’s link.
- Install the portal utility you need – for example emSigner for GST/MCA or eMBridge for DGFT – and test a signature.
Why buy from Rannlab
- Genuine, CCA-compliant tokens
- Buy together with your DSC and we load the certificate for you
- Driver and portal set-up support on +91 9990613366 (phone/WhatsApp) and info@rannlab.com
- GST invoice with every order
Proxkey and other DSC tokens
Compare the proxkey with the other tokens we stock.
Proxkey vs HYP2003 vs mToken: which token should you buy?
| Token | Maker | Security | Best for |
|---|---|---|---|
| Proxkey | Watchdata | FIPS 140-2 Level 3 | Most Indian CAs, widely supported |
| HYP2003 | Hypersecu | FIPS 140-2 Level 3 | Auto-installing driver on most PCs |
| mToken | Longmai | FIPS 140-2 Level 3 | Compact, reliable everyday use |
All three tokens work with Class 3 signing, encryption and combo certificates. If your Certifying Authority recommends a specific model, follow that advice; otherwise the proxkey is a safe choice.
Common proxkey problems and quick fixes
- Token not detected – reinstall the driver, try another USB port and restart the browser.
- Certificate not visible on the portal – make sure emSigner or eMBridge is running and that the portal supports your token driver.
- Wrong PIN warning – stop after two attempts and contact us before the token locks.
- New computer – install the same driver first, then plug in the proxkey; your certificate stays on the token.
Our support team helps you with every proxkey set-up over phone, WhatsApp or remote session, so you can sign on GST, MCA, Income Tax or tender portals the same day.
How to buy the proxkey with your DSC
Add the proxkey to your cart together with the Class 3 certificate you need. Once your documents and video verification are complete, the Certifying Authority issues the certificate and we help you download it onto the token. You can then test signing on your portal before you hang up with our support team. Delivery and set-up timelines are shared with you on WhatsApp after the order.
FAQs
Does the token include a digital signature certificate?
No. The token is the secure storage device. Buy a Class 3 DSC separately – or together in the same order – and we will download it onto the token.
Can I reuse this token when my DSC expires?
Yes. A working token can hold your renewed certificate, as long as its driver is supported by your Certifying Authority.
What happens if I forget the PIN?
Repeated wrong attempts lock the token. Some tokens can be unlocked with the admin PIN; otherwise the token is reset and the certificate must be reissued. Keep your PIN safe.
Related: Proxkey · HYP2003 · mToken · mToken FIPS Level 3 · Class 3 Individual DSC · Class 3 Organisation DSC







