COMPUTER AND NETWORK SECURITY Assignment Example | Topics and Well Written Essays - 2500 words

COMPUTER AND NETWORK SECURITY - Assignment Example It is still free to use and is not patented Memory requirements for blowfish are less than 5 kilobytes of memory. The semantics are simplified and is relatively easy to deploy. Part 2 Click the button File then click on New Certificate option. Now press the button Create a personal open PGP key pair option. After this an email address along with name of the sender is added. At this point the key details can be changed. Furthermore, after pressing Advance setting option you can create RSA 4096 bit. This creates an additional strength. An expiration date will also be added according to the senders will. In order to generate a key you have to click Ok and then next. The passphrase is required in order to decrypt the sent message. Now enter this passphrase. The passphrase must be kept stronger in order to be secure. The following options are available such as email your public key, backup private key and upload public key. These options can be utilized after generating a key. The private key must be kept as a secret. However, the public key can be used without any security. The public keys can be mentioned on public forums or websites. Moreover, to keep a backup of both the keys is a good option. Press the finish button. Now the Mailvelope is downloaded over the chrome. In the below screen shots the Chromium on mint Linux is showed. However, this will work fine over both Chrome for windows and the Mac. Now after installing chrome search for http://mailvelope.com/. After opening this website click Mailvelope Chrome Extension and download the free version. The Mailvelope icons is located over right corner of the Chrome and click on this icon then choose options. On the left side the key ring is present click on it and creates the keys for the page. Now add all the required details such as passphrase, name and email address of the sender. Now the advance option can be changed according to the user. After finishing all the steps press the complete button. For the priva te and public keys the same rules and regulations are applicable. However, the public keys are changed. In Mailvelope, the chrome users will click on the display keys. Now select the key pair and then press the Export button. Now next step is to press the display public key and then click on the Create file in order to install the copy on your work station. This copy is sent to the outlook user as a copy in attachment.    The Outlook user must now save the attachment and import it into the Kleopatra program. After the attachment is saved to the computer, open Kleopatra and the Import Certificates button. Find the certificate and import it. Click OK when completed.   Ã‚  Ã‚   Click the My Certificates tab and right click your certificate. Select Export Certificates. Save it to a location and email it to the user that just sent their public key to you.   Ã‚   The public keys must be received by the webmail users. Now save this file and then open Mailvelope. Now after completing this process the keys are imported ad uploaded the file. After this select a key text file to import and then click submit. You are now ready to exchange Encrypted email! In order to get started we will allow the gmail users to transfer any message that is encrypted towards the outlook service.