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Gpg4win Encryption: How to use OpenPGP encryption on Windows 7 – The Visual Guide

06/04/2014

If you’d like to use OpenPGP on Windows 7, then you’re in luck.

Step 1 – Download Gpg4win

http://www.gpg4win.org/download.html

download

Step 2 – Install GPG4Win

Right click > Run as Administrator

The next 8 screenshots are shown, so that you can see what will happen.

OK (English)

gpg1

Next

gpg2

Next

gpg3

 Next

gpg4

 Next

gpg5

Start Menu

gpg6

Install

gpg7

Finish

gpg8

*****

Next, we generate your first OpenPGP Keys

Start > All programs > Gpg4Win

Right click on Kleopatra icon > run as administrator

 

kleo1

*******

 Step 1 – Create  a New Certificate

File  > New Certificate

 

kleo2

*****

Create a personal OpenPGP Key Pair

Next

kleo3

Enter Name > Next

Remember to not use your actual details – avoid any connection to your real identity

kleo4

Show all Details > Create Key

kleo5

Enter Password (twice)

See password hacking tips at the end.

kleo6

Key Pair Created

Save Backup of Key Pair

kleo7

Export Secret Certificate >  key.txt

OKkleo8

OK

kleo9

Yay! We’re finished.

Your OpenPGP keys are displayed.

kleo10

*****

Digital Signature – Sign a picture with your new OpenPGP key

Digital signatures prove that you send the file or photo.

Step 1 – Sign / Encrypt files

 

File > Sign / Encrypt files

ds1

Step 2 – Browse to select your file to sign

Select file > Open

 

ds3

Step 3 – Change Encrypt to Sign

Default is to encrypt as shown:

Select Sign > Next

ds6 sign openpgp

Sign with OpenPGP

Sign

You’ll be prompted for your OpenPGP password

ds7 sign

Finish

ds8 sign

The signed file looks like this under windows

ds9

File > Decrypt / Verify Files

ds10

Browse to your signed file

Decrypt / Verify

ds11

 OpenPGP will validate the signature

ds12

Digital signatures are legally binding in the UK.

So if you do digitally sign a contract, you cannot back out.

Remember a digital signature, is taken as your REAL signature, it’s like a PIN code to your bank account, it must remain SECRET.

*******

Password Hacking Tips

1. Passwords of 8 or less characters can be easily cracked… use a pass “sentence” rather than a password.

2. Users put capital letters first, and numbers at the end.  Reverse this.  Use numbers first, and capitals in the middle or end of your pass sentence.

3. Use full stops and (brackets) to dramatically strengthen security.

4. 98.8% of all passwords can be guessed from the Top 10,000 passwords.  Make sure that your pass sentence is not in this list.

5. Use http://www.passwordmeter.com to test the strength of your password.

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3 Comments
  1. Did you know it’s possible to encrypt messages and paste the ciphertext into webmail in the command line? The recipient can still decrypt the message as normal.

    Like

  2. Cheers, I’ll try this. Hopefully will work with Win8.

    Like

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