GPG4win / Kleopatra Documentation. Secure file and encryption by using GnuPG for Windows

Transcription

1 GPG4win / Kleopatra Documentation Secure file and encryption by using GnuPG for Windows

2 GPG4win Detailed How To: Installing Gpg4win: 1. Go to the following website click on gpg4win exe. 2. Save gpg4win exe. 3. Run gpg4win exe to install GnuPG for windows. 4. The installation will soon start and you will be asked for the language to be used. 5. Confirm your language 'English' and click [Ok]. 6. The welcome dialog will appear afterwards. 7. Make sure to close all running programs then click on [Next]. 8. The next page displays the license agreement, Click on [Next]. 9. The next page displays the selection of components, leave the default selection and click on [Next]. 10. The next page displays the installation location, You can either go with the suggested folder or select a different folder for installing, then click on [Next]. 11. In the install option page, click on [Next]. 12. Once the installation is done, click on [Next]. 13. In some cases you will be asked to restart Windows, click on [finish]. Your system will be restarted. Generate your Public/Private key-pair: 1. Open Kleopatra using the Windows start menu, go to Start --> All programs --> Gpg4win --> Kleopatra 2. Click on File --> New Certificate. 3. The page will display the Certificate Creation Wizard, click on Create a personal openpgp key pair then click on [Next]. 4. Fill out your name and address then click on [Next]. 5. Review your name and address in the next page, if everything is correct then click on [Create Key]. 6. Enter your passphrase, which should be an easy to remember and hard to guess secret passphrase, then confirm your entry with clicking on [Ok]. 7. It will take some time to generate the key pair, after that you will see the Key Pair Successfully Created page, click on [Finish].

3 Exporting your Public Key: 1. Open Kleopatra using the Windows start menu, go to Start --> All programs --> Gpg4win --> Kleopatra 2. Select the public certificate to be exported by clicking on it. 3. Click on File --> Export Certification. 4. Select a file folder to save the certificate, then save the certificate with the file type.asc (from the check box) 5. Open the exported certificate with a text editor. Importing a Public Key: 1. Open Kleopatra using the Windows start menu, go to Start --> All programs --> Gpg4win --> Kleopatra 2. In Keopatra menu, click on File -> Import certificate. 3. Navigate through the files and select the public certificate that you wish to import and click [open]. 4. Click [ok] after seeing the certificate improt result.

4 Encrypting Files: 1. Open Kleopatra using the Windows start menu, go to Start --> All programs --> Gpg4win --> Kleopatra 2. In Keopatra menu, click on File -> Sign/Encrypt files. 3. Navigate through your files and select the file you wish to encrypt, then click on [Open]. 4. Choose to Encrypt, then click on [Next].

5 5. Choose the person/s you want to en crypt the file for, then click on [add] botton. 6. Click on [encrypt]. 7. After the file encryption is succeeded, click on [finish].

6 Decrypting Files: 1. Open Kleopatra using the Windows start menu, go to Start --> All programs --> Gpg4win --> Kleopatra 2. In Keopatra menu, click on File -> Decrypt/Verify files. 3. Navigate through your files and select the file you wish to decrypt, then click on [Open]. 4. Choose the operation [Decrypt].

7 5. You will be asked to inter your passphrase, inter it then click on [Ok]. 6. After the file decryption is succeeded, click on [Ok].

8 Encrypting/Decrypting s: How To Use GnuPG and Thunderbird to Encrypt/Decrypt s: 1- Download Mozilla Thunderbird a- Go to b- Click on Product button c- Select Thunderbird, then download it. 2- Install the Thunderbird add-ons which called: Enigmail a- Open Thunderbird b- Click on [tools] button -> add-ones c- Search add-ones, type in Enigmail in the search box d- Install Enigmail 1.5

9 e- Restart Thunderbird to complete the installation, after that you will notice a new button which called OpenPGP in your menu bar. 3- Create an address (or use your own), then setup your with thunderbird. a- start Thunderbird then click on Create a new account

10 b- In the welcome screen, click on [Skip this and use my existing ] c- Inter your name, address and password, then click [continue]

11 4- Click on [OpenPGP] button in your menu bar -> Key Management 5- Generate a key pair a- Click on [Generate] -> new key pair b- Enter the passphrase, then click on [Generate Key] 6- Send your public key as an attachment a- Click on [OpenPGP] -> Key Management b- Type in your first name, then select the public key that you wish to sent c- Right click on it -> Send Public Keys by

12 d- Type in the receiver address and send the The receiver (say User2), have to import your public key into his OpenPGP a- Open the -> right click on the attachment -> Import OpenPGP key

13 8- Sending encrypted s a- Open Thunderbird -> Click on [Write] to write a new b- Type in the receiver , the subject and the content c- Click on [OpenPGP] button d- Check the Sign Message and Encrypt Message check boxes then click [Ok] e- Click on [Send], The encrypted message will look like this:

14 For better understanding of the scenario between the two users, you might find this video on YouTube is helpful: