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. 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.