In Today’s Article At Myonlineca, We Will Discuss What is Digital Signature and How to use It. Signature is a sign of our agreement. If we are writing our signature then it means that we are expressing our consent to that thing. We write our signature, such as in a bank’s checkbook, or in a government document where we have the consent.

What is Digital Signature and How to use It

But have you ever thought that these Signatures can also be bogus? There are many people who can duplicate any signature. Now here’s a little scare because if such fake signatures rob you of money earned from our hard work, it’s really a scary thing. But now you are not afraid because now we have started using Digital Signature instead of Physical Signature. That is why such a revolving work is unlikely.

Digital Signature Meaning -What is Digital Signature?

This is a technique that allows us to know the truth of anybody’s document. We can find out how much that document is Authentic or Genuine. It has been designed so that if any kind of tampering is done then it can be easily identified. This gives accurate information about the origin, identity, and status of that electronic document.

What is Digital Signature and How it works

Digital Signature is based only on Public-key Cryptography, also called Asymmetric Cryptography. It generates two keys by using the public key Algorithm such as RSA, which are Private and Public. And these two keys are mathematically linked. With the help of Signing Software to create It, the electronic form of signature to be created is made of one way hash. Then hash is encrypted with the help of Private Key. Similar encrypted hash and other related information like Hashing Algorithm are called Digital Signature. Here we encrypt empty Hash in place of the entire message so that because with the help of the Hash Function, we can translate any arbitrary input into a fixed length value which is smaller than usual. It saves time because Hashing is much faster than signing.

Hash’s value is unique if we look at its Hashed Data. If there is any change in that data, even if a character is also manipulated, then some other value will show in the result. This feature enables others to validate the integrity of the data by using the signatory’s Public Key to decrypt the hash. If decrypted hash matches, with another computed hash then it gives evidence that there is no change in the data. And if both Hash data does not match then it is possible that some changes have been made in the data, and cannot be trusted in this.

Digital Signature Example

We have a simple example of Digital Signature. When you log in to a website by logging in with your login id and password, the login id and password in it will work as a Digital Signature which verifies that you are only logging in to that website because you have to do that website I have permission to access.

Digital signature under the Indian Law

Now you must have come to these questions in the minds of people whether the Digital Signature is certified by our Indian Law or not. So do not be afraid to give you full information about it.Under Section 3 Information Technology Act, 2000 (which was updated in 2008), It is legal. In section 35, it has been thoroughly explained that whoever issues the “Digital Signature Certificate” will issue “If the applicant has generated the Digital Signature.

What is a Digital Signature Certificate?

Digital Signature Certificate is issued by the government’s certifying authority. This certificate contains data proving your identity, such as your name, email, address etc. DSC establishes your identity while doing business or by doing any transaction on the web. The documents that you send through the internet with this signature are credited

Where is Digital Signature Certificate (DSC) required?

  • For E-filling of Income Tax Return.
  • For E-filling of Incorporation Company.
  • For e-Attestation by Chartered Accountants, Company Secretary, and Cost Accountant
  • For e-filling of government tender.
  • For e-filling of trademarks and copyright applications.
  • For e-signing of agreement and contract.

Is there a difference between Digital Certificate and Digital Signature?

Let me tell you that there is a great difference between both the digital certificate and digital signature. Digital Certificate is used to verify the trustworthiness of a website where Digital Signature is used to verify a document.

Is it safe to use Digital Certificate?

So in this context, we can say that using Digital Certificate is absolutely safe, as long as your Private Key is safe with you.For your information, let’s say that Private Keys are generated and stored in the FIPS compliant Cryptographic Token, so it is impossible to temp it. We can say that the Private Keys are made in that Cryptographic Token only, it remains the same and it dies within itself, and it does not come out anytime.During Digital Signing, Private Keys are required to use it in a software and a PIN is also required to do this. So you have to keep that PIN with this Cryptographic Token as well.

For this reason, it is very safe because for anyone to access Digital Signature you will also need to know his PIN along with his Cryptographic Token.

For What Purpose Digital Signature is Used?

It is used to send and receive digitally signed emails. It is necessary to do any transactions based on the internet safely.  For e-tendering, it is required to register the company and e-filing of income tax return. Digital Signature is required to sign Msword, Ms-excel and Pdf documents.

Steps to Acquire Digital Signature Online

The Indian Government’s IT Ministry is the Controller of Certifying Authority, which licenses some agencies to issue digital certificates to the users. These agencies are called Licensed Certifying Agencies and through this, a person can take digital signature. There are mainly three licensed certifying agencies through which digital signatures can be taken. These are: e-mudra ,  Sify  and encoded. You can take your or your company’s Digital Signature Certificate from any of the three agencies. In addition, these licensed certifying agencies have their own licensed registration authority. From there you can also take digital certificates. Websites like,, digital are licensed registration authority. Either you can take digital signatures directly from licensed certifying agencies like e-currency, Sify or from their certifying agencies like,, digital

Here’s how to take digital signature from e-Mudra. The other agencies can also be applied in almost the same way, which is as follows:

Step 1: Fill up the application form To get digital certificates through e-MUdra, you will have to fill the online application by visiting the e-currency website.

Step 2: Payment After you fill the application, you will be taken to the payment gateway. Here you have to pay online payment.

Step 3: Submit the document, print the filled application form and then attach some photocopies of documents to it. If you are taking digital signature in the individual category, then you have to apply one photo, ID proof and address proof attested copy application firm with it. After this, application forms and documents will be taken from your address on behalf of e-mudra.

Step 4: Certificate Download After verification of the documents you send, you will receive an email from e-currency, which will have your digital signature certificate. Also, how to download it and the necessary password too. In this way, you can download digital certificates from e-mudra website.


I hope you like this article about What is Digital Signature and How to use It. still, if you are confused you can check out our website to Know more about It and How to use It and To Get Digital Signature for yourself.