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How to encript pgp emails

Posted on 2003-12-01
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Last Modified: 2013-11-18

Just for fun I want to be able to send and recive encripted emails.  I remember something about verisign and pgp.  

Oddly enough I know the theory behind this however can not do anything practial with it (book stupid).  Just to add a twist I use linux and Kmail.  

I think I generate a PKI keypair, let others know about my public key.  Just how to I get the email client to use it?  How do I generate a keypair?  I also want to use pgp so windows users can exchange with me easyier.  
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Question by:TIMFOX123
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Accepted Solution

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chicagoan earned 100 total points
ID: 9855545
When you install PGP you are given the opportunity to generate a keypair or when you apply for a certificate a keypair is generated.

Your PGP public key can be placed on a keyserver or transmitted freely.
Encrypting a message with your private key (digital signing) assures a person who decrypts it with your public key that you are the author (non-repudiation)
Encrypting a message with the recipient's public key means only they will be able to decrypt it (integrity)

Using both your public and the recipient's private keys mean you sent it and it is intact.
A certificate is a means of the recipient being assured you are who you say you are. A certificate authority investigates the applicant and as a trusted entity vouches for their identity.



From PGP Freeware Docs:
There are three ways to encrypt and sign email messages. The quickest and
easiest way to encrypt and sign email is with an application supported by the
PGP email plug-ins. Although the procedure varies slightly between different
email applications, you perform the encryption and signing process by
clicking the appropriate buttons in the application’s toolbar.
If you are using an email application that is not supported by the PGP
plug-ins, you can encrypt and sign your email messages via Windows
clipboard by selecting the appropriate option from the lock icon in the System
tray. To include file attachments, you encrypt the files from Windows Explorer
before attaching them.
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Author Comment

by:TIMFOX123
ID: 9863737
Great job Chicagoan

Doubled the points and accepted it.  You rock!!!!

Now if I can just keep the feds from busting me :)  
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LVL 18

Expert Comment

by:chicagoan
ID: 9864500
Glad I could help, now print this and burn it.
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Author Comment

by:TIMFOX123
ID: 9870561
Now if I can find a certificate server.  Wonder if I have to run my own or use someone elses?
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Author Comment

by:TIMFOX123
ID: 9870562
Now if I can find a certificate server.  Wonder if I have to run my own or use someone elses?
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LVL 18

Expert Comment

by:chicagoan
ID: 9870787
It depends on who you want to trust you.
If you can mail cash i can let you have a 64 bit certificate personally autographed by bill gates for $899.

otherwise, look at verisign and thawte

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