In today’s digital world, more and more businesses are conducting their affairs online. This shift has made it easier than ever before to send and receive documents without ever having to put pen to paper. While this is certainly convenient, it also comes with a new set of challenges—namely, how to protect your documents from being altered or tampered with. That’s where esignature comes in.
Digital signatures are a type of electronic signature that uses cryptographic technologies to verify the identity of the signer and ensure that the document has not been tampered with. In other words, digital signatures provide an extra layer of security for your online documents. If you’re not already using digital signatures, now is the time to start. Here’s a quick guide on how to get started.
How to Use Digital Signatures?
1. Verify the identity of the signer. The first step in using digital signatures is to verify the identity of the signer. This can be done through traditional methods like checking IDs or driver’s licenses, or through newer methods like facial recognition or fingerprint scanners. Whichever method you choose, it’s important to make sure that you have a way to confirm the signer’s identity before proceeding.
2. Ensure that the document has not been altered. Once you’ve verified the signer’s identity, you’ll need to ensure that the document has not been tampered with in any way. The best way to do this is to generate a hash of the document using a secure hashing algorithm like SHA-256. A hash is a fixed-size string of data that corresponds to a larger piece of data—in this case, your document. By generating a hash of the document, you can be sure that its contents have not been changed in any way.
3. Use cryptographic technologies to create the signature. Now that you’ve verified the signer’s identity and ensured that the document is intact, you’re ready to create the digital signature itself. This is done using public key cryptography, which is a type of asymmetric cryptography that uses two different keys—a public key and a private key—to encrypt and decrypt data.
4. Add the digital signature to your document. Once you’ve created a digital signature for your document, all that’s left to do is add it to the file itself. Most modern word processing tools offer support for digital signatures, so adding one is usually just a matter of clicking an “Insert Signature” button and following any additional prompts.
5. Store backups and record logs of all transactions. Digital signatures are legally binding documents, so it’s important to keep track of all transactions using them. You’ll need a detailed record of every time that you send or receive a signed document, as well as any changes or updates that are made to the document after it has been signed.
In the end
Using digital signatures is a great way to protect your online documents from being altered or tampered with. By following these simple steps, you can be sure that your documents are safe and secure—and that only those with authorized access can view or modify them.