We are independent & ad-supported. We may earn a commission for purchases made through our links.
Advertiser Disclosure
Our website is an independent, advertising-supported platform. We provide our content free of charge to our readers, and to keep it that way, we rely on revenue generated through advertisements and affiliate partnerships. This means that when you click on certain links on our site and make a purchase, we may earn a commission. Learn more.
How We Make Money
We sustain our operations through affiliate commissions and advertising. If you click on an affiliate link and make a purchase, we may receive a commission from the merchant at no additional cost to you. We also display advertisements on our website, which help generate revenue to support our work and keep our content free for readers. Our editorial team operates independently of our advertising and affiliate partnerships to ensure that our content remains unbiased and focused on providing you with the best information and recommendations based on thorough research and honest evaluations. To remain transparent, we’ve provided a list of our current affiliate partners here.

What is a Digital Signature?

By David White
Updated May 16, 2024
Our promise to you
EasyTechJunkie is dedicated to creating trustworthy, high-quality content that always prioritizes transparency, integrity, and inclusivity above all else. Our ensure that our content creation and review process includes rigorous fact-checking, evidence-based, and continual updates to ensure accuracy and reliability.

Our Promise to you

Founded in 2002, our company has been a trusted resource for readers seeking informative and engaging content. Our dedication to quality remains unwavering—and will never change. We follow a strict editorial policy, ensuring that our content is authored by highly qualified professionals and edited by subject matter experts. This guarantees that everything we publish is objective, accurate, and trustworthy.

Over the years, we've refined our approach to cover a wide range of topics, providing readers with reliable and practical advice to enhance their knowledge and skills. That's why millions of readers turn to us each year. Join us in celebrating the joy of learning, guided by standards you can trust.

Editorial Standards

At EasyTechJunkie, we are committed to creating content that you can trust. Our editorial process is designed to ensure that every piece of content we publish is accurate, reliable, and informative.

Our team of experienced writers and editors follows a strict set of guidelines to ensure the highest quality content. We conduct thorough research, fact-check all information, and rely on credible sources to back up our claims. Our content is reviewed by subject-matter experts to ensure accuracy and clarity.

We believe in transparency and maintain editorial independence from our advertisers. Our team does not receive direct compensation from advertisers, allowing us to create unbiased content that prioritizes your interests.

A large amount of communication takes places these days electronically. People send emails, faxes, and files with the help of computers. With each and every file that is sent electronically, even emails, the possibility for a security breach exists.

Hackers live for challenges, but they make a living from non-challenges. In order to protect data that you transfer electronically, you might want to invest in a digital signature. This is a powerful, technologically advanced way to make sure that your communique reaches only the intended recipient. A digital signature is an electronic signature that can be attached to documents to prove that the original content is still the content of record. In other words, a document containing a digital signature has been certified by its sender as accurate to his or her intentions and has not been altered by an unintended third party.

One of the main components of a digital signature is its timestamp. This tells both the sender and the recipient the exact time at which the file was sent. The sender can match the timestamp to his email or other method of file transfer in order to prove that no one intercepted the file and altered its data in transit, or worse, stole its data for good so that the transfer never took place.

A digital signature is usually the product of a dedicated software application, although it can be included as part of another application. The random number generator function of a computer generates a series of 0s and 1s that make up a letters-and-numbers sequence to protect your data by allowing your intended recipient to verify that the file has been encrypted to your specifications.

Technically, the digital signature process smashes the digital data and all its aspects into a handful of lines of code. This process is called hashing, and the resulting set of coding is called a message digest. The digital signature software then encrypts the message digest. On the other end, a decryption program is required to turn the message digest back into an "unhashed" document.

Something else is going on here as well. The person who creates the digital signature uses a private data "key" to do the hashing. His or her other "key," a public one, is known to the intended recipient. When the sender transmits data using the digital signature, the recipient enters the sender's public key and is able to decrypt the document. Only if the sender's private key, which the recipient doesn't view, is intact will the file appear unblemished, as it was intended.

You don't need to be a code expert to use a digital signature. You just need to have the necessary software on both sides of the digital signature equation. Only then can you be certain that your transferred documents are secure from start to finish.

EasyTechJunkie is dedicated to providing accurate and trustworthy information. We carefully select reputable sources and employ a rigorous fact-checking process to maintain the highest standards. To learn more about our commitment to accuracy, read our editorial process.
Discussion Comments
By anon155630 — On Feb 24, 2011

This guide does not provide answers to following:

1.How does this Digital Signature work in actual terms?

2. How to use the D.S. once it is acquired from an authorized provider?

3. Can you give a demo of end to end process involved in sending/receiving messages using D.S.?

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.

EasyTechJunkie, in your inbox

Our latest articles, guides, and more, delivered daily.