Network Security: E-mail Security. Objectives To learn to use e-mail security tools –PGP To learn the availability of email security libraries –S/MIME.

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Presentation transcript:

Network Security: Security

Objectives To learn to use security tools –PGP To learn the availability of security libraries –S/MIME

Packages & Libraries in this Lab Packages –GPG4win: for Windows

Experiment Scenario Signing/verification of files using certificates –Create a new certificate –Encrypt/sign s –Encrypt/sign the file “original.txt” into another file “enc.txt” (using sender’s certificate) –Then, we decrypt/verify it and get another file “dec.txt” (using sender’s certificate), and check if the decrypted file is the same as the original file Sending/receiving s with certificates –Set up account –Read mails –Send mails

GPG4win Homepage: Latest version: OpenPGP: an open standard for security (RFC 4880) –S/MIME also included Installation steps: –Simply follow the instructions on screen

Other Tools Included in GPG4win Kleopatra: GnuPG certificate manager –New certificate –Encrypting/Signing a file –Decrypting/Verifying a file Claws Mail: a mail reader –Setting up your mail account –Reading mails –Sending mails

Microsoft Outlook Support in GPG4win PGP for Outlook –GpgOL 1.0 can support OpenPGP and S/MIME

Configuring Outlook for S/MIME Configure Your Personal Certificates Send a Signed Message Read a Signed Message Check the Credentials of a Signed Message Send an Encrypted Message Read an Encrypted Message Get Certificates for Other Users

Summary security –PGP –S/MIME