What is Digital Signature?

    Signature means signature This is a sign of our consent. If somewhere we are writing our signature, then it means that we are expressing our consent with that thing. For example, in a bank’s check book, or in any government document where we have consent, we write our signature. But have you ever thought that these Signatures can also be fake. There are many people who can imitate any Signature exactly. Now there is something to be afraid of because if someone will loot our hard earned money from such fake signatures, then it is really a matter of fear. But now we have started using Digital Signature instead of Physical Signature. Due to which the work of such ransom is impossible.

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    What is Digital Signature?

    This is such a technique by which we can know the truth of any document. By this we can find out how Authentic or Genuine that document is. Digital Signature has been made in such a way that if any kind of tampering has been done then it can be easily recognized. From this, accurate information about the origin, identity and status of that electronic document is obtained.

    A valid digital signature gives us the assurance that the sent documents have been sent by a known sender, it confirms that. And even that sender cannot turn his back on this. It is a standard element for many Cryptographic Protocol Suites and they are used in many places like Software Distribution, Financial Transaction and Contract Management Software so that forgery can be caught very easily.

    Advantages of Digital Signatures

    The main task of it is to prevent any kind of tampering and impersonation with any digital documents. With the help of this, we get to know about the real truth of any digital document whether it is real or fake.

    Authentication: As we know that Digital Signature is linked with Private Keys of any user and only he can use it, because of this it is known here who is the real owner of this document.

    Integrity: If there is any difference in a single bit, after digital signing, then this completely proves that this document is not trustworthy any more.

    Non-repudiation: If a user has done his digital signing in a document, then he cannot deny this later. This is because the signing cannot be faked by using the public keys of any user.

    Digital signature under the Indian Law.

    Section 3 shows it as legal under the Information Technology Act, 2000 (which was updated in 2008). In Section 35, it is very well explained that which Certifying Authority will issue “Digital Signature Certificate” if an applicant has generated Digital Signature.


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