Introduction to cyber security: stay safe online
Introduction to cyber security: stay safe online

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Introduction to cyber security: stay safe online

2.1 Setting up Mailvelope

You have learned that using cryptographic tools for email is not particularly straightforward and there is no single tool that works across all computer systems.

The video describes the steps required (also available in a PDF [Tip: hold Ctrl and click a link to open it in a new tab. (Hide tip)] ) to download and install the Mailvelope software. This software enables sending an encrypted email through existing web-based email accounts such as Gmail or Yahoo mail. The next section describes how to use Mailvelope.

Download this video clip.Video player: ou_futurelearn_cyber_security_vid_1106.mp4
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In this video, we demonstrate how to install and use Mailvelope, an extension to the Chrome Web browser which allows you to send an encrypted email through existing web-based email accounts, such as Gmail or Yahoo mail.
To install Mailvelope we first locate it in the Chrome Web Store. Click Add to Chrome and select Add. Once the extension has successfully installed, you can see the Mailvelope icon appear in the Chrome toolbar at the far right-hand side.
We now need to generate a public and private key for ourselves and tell Mailvelope about the public keys of the people we plan to communicate with. We start by generating our own keys. We click the Mailvelope icon in the Chrome toolbar and select Options. This shows our key ring, the set of keys that Mailvelope knows about.
At the moment there are no keys listed. We then click the menu option, Generate Key, from the list at the left of the screen. We are presented with a form asking for the name, email address, and passphrase that will be associated with the generated key. We fill in the information, making sure we use a strong and memorable passphrase. Mailvelope will ask for this passphrase when we try to use this key to sign or decrypt a message.
Clicking Submit shows a progress indicator and a message that the key is being generated. Once this is complete we see the message 'Success! New key generated and imported into key ring.' at the bottom of the form.
The final part of configuring Mailvelope is to import a public key for the person we want to exchange messages with. We've set up a special email address for this task:
We start by clicking the Menu option Import Keys from the list at the left of the screen. Public keys can be provided as plaintext. We copy the one for our email address below. Include the lines with "begin" and "end." Paste it into the text area of the Mailvelope Key Import screen. Click Submit. We can now use the Mailvelope tool to send a signed and encrypted email to the cybersecurity-mooc email address.
End transcript
Interactive feature not available in single page view (see it in standard view).

The public key for the email address described in the video is as below.

-----BEGIN PGP PUBLIC KEY BLOCK----- Version: Mailvelope v0.10.2 Comment: Email security by Mailvelope -

xsBNBFRTk80BCACZvweJjzZdkQMGukYklmKC+57ER4d8WG0lYz4x7DX+4ZZn NCMMPIWTi3f4dXJ8IJLsgNuksFOqdGVSqFWPNwDuAx+cKgKIzdMfUTqaUkwG hNCWbLgUfpKzrc5nxbceaaczM8CcEM5DRR/RUXsb8PdF/+qUXGMD/dULbaZF y3kWjM8eKtk34/Ddhl1BTrdsuqWc0Sd3T5fAunXmt5OVwJfQH4e0A80rYlv/ 6x132fvTrc1O2PuhehOYis5GbIIdmEne3uLf2+qY1atituAsITNVeRv1lH9k vLElIDAx7pg9wzMPS6TCipcy7/Y0A4b/PosRr98Ivxqro/PjmYVtXYdjABEB AAHNM0N5YmVyIFNlY3VyaXR5IE1PT0MgPGN5YmVyc2VjdXJpdHktbW9vY0Bv cGVuLmFjLnVrPsLAcgQQAQgAJgUCVFOT2AYLCQgHAwIJEKcfnOAlYdbMBBUI AgoDFgIBAhsDAh4BAADp0gf+PPYfgJyisnXgpKH/Iac4RH+xX17bVfQ5hbFk p2cSPTLExba2OBgFT1QnuHfJex2arVEv5Iz/lm09BTzQSBSqrNnbmuAc9qif mlJVvElvQ+5w0qA5Zllo9XrocLzTyjW4nLTWZLrdfAJo9CB1D/q60xE8KFYD vX7zRplTdZsRc85PM3yfKFt4jsAY+Uv1gTHUfT2CBgi8wsnq6r1rPFE+1w5r SNlQbugUzUzbjCzD4RqUL6DVbp3T04ZiPvlHh4j3yLKtCNg6OhcLZ3NfRjL4 aD8YAI17uB9FEYSC9Z10xWO/knRHBYWjj7sp/IAzuIki0+67XYMaTBEQVCMI nBUBn87ATQRUU5PYAQgAzZFiDoNzvSzrBzOpjIGdg24aC/nA0kxZgnHbTFD3 81gic6DkJ1wS3oN5kNT7WDsCRVM2vNEZ+dLGu3aR1AntbZFxsd7k7iTPNCeC VV0X59cX9x5WCUuygl4rK4dDW8NUk1E6ef5eFAo4YPkaaSPqr+RcurS4mWa+ 9zLvvrIxG7J4xPbC1FSe5GSCi+CyjzxDV+lCI3h985DuIDNXShlUrSjhz+xy TfVpLcjRODom8frO+7K4n04qUAvqoiqHaIdeC2lrasURWDHpuhBpaSQeWtEF NlMwBPjkQ3LS2vqqCTpugjZzLI0YzpUOFJKlvoX0c0wyCE0f01nFISkEQjFB 0wARAQABwsBfBBgBCAATBQJUU5PhCRCnH5zgJWHWzAIbDAAAY7IH/2qzhjzB lFnw2boWlYvUQwhaTUB8+DkGk0hXAOy8TspJQ6ph/8jC1ajSe4iElfqhI4nj q+a2YhpVxMuXBIGPMdoG4fV/rJayKKSPR8w0Fyd/8+LeiHdiHmYrog0ds0Hb hT6G3mXzlqXixaKMCADFv3yWYLhbgtNU90eBTblLW+b1hMXocmgWS4jHxePy abjLUzBcjOlJ1dDsoxg2BIJT/1okvZa7c+uzcbTrm5wC+TLWqMbUDcGnPmid 7NUL8696ZKhrOeVc1ieOvc9v8Ax3Co5qQWh78/f3XS2pmv/reGPPPhaTSfmt QAbFlDORGdx9/rkjhtrPyl1YtMeuVNAHflA= =RTLt -----END PGP PUBLIC KEY BLOCK-----

Disclaimer: The Open University and partners associated with this course have found this software to be robust at the time of checking. However, installing software is done at your own risk and The Open University and their partners cannot be held responsible for any resulting damage to your computer.


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