What ‘Certificate Class’ should I select?

Digital Signature certificate in India – Emudhra

Selection of Digital Signature certificate class depends completely on your usage and security requirements. A rough guideline is provided below on the applicability of various levels of certification:

Class 2 Gold – if you need to use the certificate for signing documents, encryption and electronic access control in transactions where proof of identity based on information in the Validating Database is sufficient class.

Class 3 Platinum – for transactions that require a high degree of security and privacy due to exchange of extremely sensitive information that requires unequivocal authentication of the subscriber’s identity. Some of the common transactions requiring Class 3 certificates are e-commerce, electronic data interchange by banks, etc.

Visit www.digitalsignature.in

Using digital signatures only with trusted applications

One of the main differences between a digital signature and a written signature is that the user does not “see” what he signs. The user application presents a hash code to be signed by the digital signing algorithm using the private key. An attacker who gains control of the user’s PC can possibly replace the user application with a foreign substitute, in effect replacing the user’s own communications with those of the attacker. This could allow a malicious application to trick a user into signing any document by displaying the user’s original on-screen, but presenting the attacker’s own documents to the signing application.

To protect against this scenario, an authentication system can be set up between the user’s application (word processor, email client, etc.) and the signing application. The general idea is to provide some means for both the user application and signing application to verify each other’s integrity. For example, the signing application may require all requests to come from digitally signed binaries.


To obtain your Digital Signature Certificate, please visit http://www.digitalsignature.in or contact our Kolkata office for more details or call +91-9432644547


Authentication of Digital signatures

Although messages may often include information about the entity sending a message, that information may not be accurate. Digital signatures can be used to authenticate the source of messages. When ownership of a digital signature secret key is bound to a specific user, a valid signature shows that the message was sent by that user. The importance of high confidence in sender authenticity is especially obvious in a financial context. For example, suppose a bank’s branch office sends instructions to the central office requesting a change in the balance of an account. If the central office is not convinced that such a message is truly sent from an authorized source, acting on such a request could be a grave mistake.


To obtain your Digital Signature Certificate, please visit http://www.digitalsignature.in or contact our Kolkata office for more details or call +91-9432644547


How Digital Signature Certificate works?

A digital signature is basically a way to ensure that an electronic document (e-mail, spreadsheet, text file, etc.) is authentic. Authentic means that you know who created the document and you know that it has not been altered in any way since that person created it.

Digital signatures rely on certain types of encryption to ensure authentication. Encryption is the process of taking all the data that one computer is sending to another and encoding it into a form that only the other computer will be able to decode. Authentication is the process of verifying that information is coming from a trusted source. These two processes work hand in hand for digital signatures







Application Form & Details at http://www.digitalsignature.in/emudhra/class_two.html

Contact our Kolkata office for more details or call +91-9432644547


CLASS 2- PAN encrypted DSC for MCA21/ ROC / Income Tax return filing, E-fillings, etc.

CLASS 2 - Emudhra PAN encrypted DSC for MCA21/ ROC / Income Tax return filing, E-fillings, etc.

CLASS 2 : Price for New / Renewal : ` 1,250/- all inclusive for DSC (2yr) with e-token (w.e.f 01/04/2014) [PAN based DSC (DSC's with encrypted value of PAN)]

CLASS 2 : Price for New / Renewal : ` 1,100/- all inclusive for DSC (1yr) with e-token (w.e.f 01/04/2014) [PAN based DSC (DSC's with encrypted value of PAN)]

Application Form & Details at http://www.digitalsignature.in/emudhra/class_two.html

Contact our Kolkata office for more details or call +91-9432644547






e-Mudhra Digital Certificate India, Renew your Digital Siganture, DSC Renewal Service, Get your DSC Renewed, Digital Certificate Providers Kolkata / West Bengal, Mumbai, New Delhi, Chennai, Bangalore, Bhopal, Patna, Guwahati, Ranchi, & all Major Cities in India. Digital Certificate Solution.

We process DSC applications for our clients all over India – in Mumbai / Bombay (Maharashtra), Kolkata / Calcutta (West Bengal), Indore (Madhya Pradesh), New Delhi, Bangalore, Nagpur, Ludhiana, Cochin, Imphal (Manipur) Jamshedpur, Shillong, Siliguri, Dhanbad, Allahabad, Noida (Uttar Pradesh), Surat, Hyderabad (Andhra Pradesh), Chandigarh / Punjab, Chennai, Ranchi (Jharkhand ), Raipur (Chattisgarh), Pune, Baroda (Gujarat), Bhubneswar (Orissa), Jaipur (Rajasthan), Faridabad (Haryana), Gurgaon, Trivandrum (Kerala), Kanpur, Bhopal, Agartala Agra Ajmer Amritsar, Bhilai, Bhilwara,Itanagar, Mangalore, Meerut, Mysore, Nasik, Pondicherry, Portblai, Raibarely, Rajkot, Silchar, Tezpur, Tinsukia, , Vellore, Vijayawada, Vishakapatnam, Dibrugarh, Udaipur and other major States / Cities in India.

Contact our Kolkata office for more details or call +91-9432644547


CLASS 3 (Signing & Encryption) Digital Signature Certificate (DSC) in India

CLASS 3 (Signing) : Digital Signature Certificate (DSC)  – For Travel agents / Tour Operators / IATA Members / TAAI Members / Air & Railway Ticketing Agents / For E-Tendering in India etc. – click for more details…

CLASS 3 (Encryption): Digital Signature Certificate (DSC)  – Encryption is a mechanism by which a message/information is transformed so that only the sender and recipient can see and read it. For E-Tendering etc. in India – click for more details…

CLASS 3 (Signing & Encryption) Digital Signature Certificate (DSC) – Contact our Kolkata office for more details or call +91-9432644547


What is a USB Token?

What is a USB Token / e-token?

  • It is secure Device, used specifically to carry Digital Certificates.
  • USB Tokens offer military grade security and the contents are also encrypted internally.
  • A virus cannot affect USB Token, and the digital Certificate stored would always be secure.
  • When you insert the Token, it automatically copies the certificate to the browser and when you remove the Token it automatically removes the certificate from the browser.
  • The Private key never leaves the Token and signing takes place within the Token itself. So, the security is guaranteed.

How e-signing can transform your business ?

No matter how much the world changes, some processes stay constant. We may file taxes online, complete financial paperwork digitally and email or text most communications, but one stamp of identity that is still required when closing any major deal is the personal signature. The individualized series of loops and squiggles that encompass our identities has been the mainstay of a done deal since the start of modern civilization. People need to imprint their mark to make a transaction official, but even that ancient process is now going completely digital.

Paper and ink signatures are losing power for several reasons. They’re inherently insecure and can be easily forged, duplicated, lost, or stolen — all without anyone realizing for days or weeks. The cost and process of printing, faxing, scanning, overnighting and storing paperwork is also high and cumbersome.

Electronic signatures retain the value of signing without the many security and time compromises of paper. Digital representations of physical, handwritten signatures can be signed directly onto mobile or tablet devices with a finger or special pen, making them easy for anyone to do. – Read more & Source

Is there any difference between Digital Certificate and Digital Signature?

Digital Signatures provide Authentication, Privacy, Non repudiation and Integrity in the virtual world . IT Act 2000 in India gives legal validity to electronic transactions that are digitally signed. Therefore we need digital signatures for secure messaging, online banking applications, online workflow applications, e-tendering, supply chain management etc.

Digital Certificates are digital documents attesting to the binding of a public key to an individual or specific entity. They allow verification of the claim that a specific public key does in fact belong to a specific individual. Digital Certificates help prevent someone from using a phony key to impersonate someone else.

In their simplest form, certificates contain a public key and a name. As commonly used, a certificate also contains an expiration date, the name of the Certifying Authority that issued the certificate, a serial number etc. Most importantly, it contains the digital signature of the certificate issuer.


A digital signature is an electronic method of signing an electronic document whereas a Digital Certificate is a computer based record which

  • Identifies the Certifying Authority issuing it.
  • Has the name or I the identity of its subscriber.
  • Contains the subscriber’s public key.
  • Is digitally signed by the Certifying Authority issuing it.

What is the difference between signing and encrypting an e-mail?

Signing an e-mail message means that you attach your Digital Certificate to it so that the recipient knows it came from you and was not tampered with en-route to their inbox. Signing authenticates a message, but it does not provide protection against third party monitoring.Encrypting a message means scrambling it in such a way that only the designated recipients can unscramble it. This safeguards messages against monitoring or interception. In order to send a signed message, you must have a Digital Certificate. Since message encryption is done using specific keys available in the certificate, you cannot encrypt a message unless you possess the recipient’s Digital Certificate.