Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

GNU Privacy Guard quick tutorial, did I get this right?

Posted on 2012-03-25
1
Medium Priority
?
428 Views
Last Modified: 2012-06-22
Can someone please explain to me in layman terms what the whole concept is? I was tasked to encrypt a file but there's so much terms that confused me such as "privacy"/"public" key, fingerprint, signature....etc.,

I generally thought you basically use one app to generate a public/private key. The public is then shared to the recipient, where you the creator keeps the private key. The private key is used so I can add more accounts or in other words create more keys.

Signature is basically just verification that is used when the recipient receives the encrypted file and basically executes the file to be decrypted.

Finger prints? No idea...did I get this all right? I need it to be explained so that when I use the software, its easy to understand. Say if you explain "signature" , I would need the concept and how its technically done using the software.

Thanks so much!
0
Comment
Question by:TeknikDev
1 Comment
 
LVL 10

Accepted Solution

by:
abbright earned 2000 total points
ID: 37764484
In general both the public and the private key belong together. With the public key a message is encrypted with the private key it can be decrypted. So you share the public key so that other people can encrypt messages sent to you which only you can decrypt.

Regarding signatures it works the other way around: In order to create a signature for a digital document you create a hash of the document which is something like a checksum. Then you encrypt this hash number using your private key and distribute the document. People who want to check the signature use your public key to decrypt the signature and compare it to the hash they calculate themselves.

Here is a more elaborate explanation of the whole concept: http://en.wikipedia.org/wiki/Asymmetric_key_algorithm
0

Featured Post

Cyber Threats to Small Businesses (Part 1)

This past May, Webroot surveyed more than 600 IT decision-makers at medium-sized companies to see how these small businesses perceived new threats facing their organizations.  Read what Webroot CISO, Gary Hayslip, has to say about the survey in part 1 of this 2-part blog series.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

If you are like me and like multiple layers of protection, read on!
Considering today’s continual security threats, which affect Information technology networks and systems worldwide, it is very important to practice basic security awareness. A normal system user can secure himself or herself by following these simp…
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

926 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question