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                           <rdf:li><rdf:Description xmpDM:name="End Point Authentication Passwords can not be exchanged in clear Nonce = random number used only once Also done using" xmpDM:startTime="1433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="certificates User Server Hi I am Alice Please encrypt this number ‘n’ with your password Here is the encryption ‘n’" xmpDM:startTime="1433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="of with my password" xmpDM:startTime="1433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="X.509" xmpDM:startTime="188333" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Sample (Cont)" xmpDM:startTime="188333" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="End Point Authentication Passwords can not be exchanged in clear Nonce = random number used only once Also done using" xmpDM:startTime="194233" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="certificates User Server Hi I am Alice Please encrypt this number ‘n’ with your password Here is the encryption ‘n’" xmpDM:startTime="194233" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="of with my password" xmpDM:startTime="194233" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Hashes, Signatures, Certificates Hashes are one-way functions such that it difficult to find another input with the same hash like" xmpDM:startTime="198200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="MD5, SHA-1 Message Authentication Code (MAC) ensures message integrity and source authentication using hash functions Digital Signature consists of encrypting" xmpDM:startTime="198200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="the hash of a message using private key Digital certificates are signed by root certification authorities and contain public keys" xmpDM:startTime="198200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Ref: Section 8.3-8.4," xmpDM:startTime="198200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Review questions R9-18" xmpDM:startTime="198200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email Secure E-Mail Signed Secure E-Mail Pretty Good Privacy (PGP) Overview" xmpDM:startTime="414567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure E-Mail Alice wants to send confidential e-mail, m, to Bob." xmpDM:startTime="447800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Bob uses his private key to recover Ks Alice: Generates random secret key, KS." xmpDM:startTime="447800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Encrypts message with KS (for efficiency) Also encrypts KS with Bob’s public key." xmpDM:startTime="447800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Sends both KS(m) and KB(KS) to Bob." xmpDM:startTime="447800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Message Encrypt Secret Key Encrypt Bob’s Public Key Message Secret Key Decrypt Secret Key Decrypt Bob’s Private Key Message" xmpDM:startTime="447800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Signed Secure E-Mail Alice wants to provide secrecy, sender authentication, message integrity." xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Alice uses three keys: her private key, Bob’s public key, newly created secret key Bob uses his private key to" xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="recover the secret key Bob uses Alice’s public key to verify that the message came from Alice and was not" xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="changed." xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Message Message Hash Alice’s Private Key Message Digest Secret Key Secret Key Bob’s Public Key Message Digest Alice’s Private Key" xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Encrypt" xmpDM:startTime="769267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP) Used RSA and IDEA (RSA patent in US until 2000) V2.6.2" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="became legal for use within US and can be downloaded from MIT A patent-free version using public algorithm has also" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="been developed Code published as an OCRable book Initially used web of trust- certificates issued by people Certificates can be" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="registered on public sites, e.g.," xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="MIT hushmail.com" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="is an example of PGP mail service OpenPGP standard [RFC 4880] Ref: http://en.wikipedia.org/wiki/Pretty_Good_Privacy" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="925467" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 [20 points] You will receive a “signed” email from the TA." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Reply to this email with a “encrypted and signed” email to TA." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If outlook says “There is a problem with the signature on the TA’s message” then click on the signature icon" xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="on the top right of the message and accept CAcert’s certificate." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The warning will go away." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can reply to the TA’s email with a signed encrypted message." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Content of the reply is not important." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Before sending the reply, on the outlook message window, Select View  Options  (More Options ) Security Settings Select" xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="encryption and signature Now send the message." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Outlook is required for both Windows and Mac Only Firefox browser has been tested with both Windows and Mac." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Other browsers may or may not work." xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1274433" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) To sign your email with a private key you need your digital certificate." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send an encrypted email you need TA’s public key." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="TA’s public key is attached with his/her email." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The steps to obtain a free certificate and use it for email depend upon your email software and your operating" xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="system." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Outlook on Windows 10 using Firefox are as included next." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If you do not have windows, you can do it using remote desktop to a Wash U windows computer." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Mac are similar, except that you need to download your certificate as a PEM file from the CAcert.org" xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="website and use that." xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Further details for Mac are at: https://knowledge.digicert.com/solution/SO6722.html" xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1568500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 1." xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Getting your Certificate: In Firefox, go to CAcert.org," xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="click the &quot;Join&quot; link under the &quot;Join CAcert.org&quot;" xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="title on the right side of the page, then fill out the form." xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Once you have fully registered, login, and click &quot;+ Client Certificates&quot;, then &quot;New&quot; on the right side of the screen." xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select your email, then accept the agreement and click “next.”" xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="A screen with a label &quot;Keysize:&quot; then a dropdown menu, and a button saying “Generate key pair within browser” will" xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="appear." xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the dropdown menu, select &quot;High Grade&quot;, then click the &quot;Generate key pair within browser&quot; button." xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1622700" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) When it is done generating the certificate, click &quot;Install the certificate into your browser&quot;." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now in Firefox, click the three horizontal lines directly under the X, and then select &quot;Options&quot;." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="On the left side of the screen, select &quot;Privacy and Security&quot;, then scroll all the way down to the bottom," xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and click the &quot;View Certificates&quot; button." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the popup window, click the &quot;Your Certificates&quot; tab." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select the certificate that you just generated (it should say CAcert WoT User&quot; under &quot;Certificate Name&quot;), and click backup." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Save it somewhere where you will remember it, then give it a name and save it as a &quot;.p12&quot;" xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Windows or “.pem”" xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Mac." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="It will require that you give the file a password, so give it something that you will remember (you will" xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="need this later)." xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1640300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 2." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Installing your Certificate in Outlook: Now open the Outlook App (not the website)." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Click the &quot;File&quot; tab, then &quot;Trust Center&quot; in the popup, then &quot;Trust Center Settings&quot;." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Open the &quot;Email Security&quot; tab, then click the &quot;Import/Export&quot; button under the &quot;Digital IDs (Certificates)&quot; title." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="With the &quot;Import&quot; radio button selected, click the &quot;Browse…&quot; button, and find you certificate." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Enter the password, and click &quot;OK&quot;." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now, you can digitally sign an email by selecting the &quot;Options&quot; tab in the composing a message window, and clicking" xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="the &quot;Sign&quot; button." xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1647800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 3." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Sending Encrypted Emails: The recipient may see &quot;There is a problem with the signature&quot; when they receive the signed message" xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="for the first time." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="This is because they may not have included CAcert as a trusted Certificate Authority." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To fix this they need to click on the signature icon on the right-top of the message and accept CAcert's" xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="certificate." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After this the problem message will go away." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The recipient can also get a CAcert certificate and send a signed message to you." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="When you open that message, the recipient's public key is automatically installed in your outlook." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After both of you have each other's public key, you can send encrypted emails to each other." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can send such messages by by selecting the dropdown menu on the &quot;Encrypt&quot; button (right next to the &quot;Sign&quot;" xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="button), and selecting &quot;Encrypt with S/MIME&quot;." xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1688567" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review Email provide confidentiality using a secret key Public key and Certificates are used to: Sign the message" xmpDM:startTime="1698167" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send the secret key Ref: Section 8.5," xmpDM:startTime="1698167" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Review question R19" xmpDM:startTime="1698167" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary Network security requires confidentiality, integrity, availability, authentication, and non-repudiation Encryption can use one secret key or two keys (public" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and private) Public key is very compute intensive and is generally used to send secret key Digital certificate system is" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="used to certify the public key Secure email uses confidentiality using a secret key, uses certificates and public keys to" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="sign the email and to send the secret key Ref: Sections 8.1" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="through 8.5" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1793767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review Email provide confidentiality using a secret key Public key and Certificates are used to: Sign the message" xmpDM:startTime="1795867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send the secret key Ref: Section 8.5," xmpDM:startTime="1795867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Review question R19" xmpDM:startTime="1795867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary Network security requires confidentiality, integrity, availability, authentication, and non-repudiation Encryption can use one secret key or two keys (public" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and private) Public key is very compute intensive and is generally used to send secret key Digital certificate system is" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="used to certify the public key Secure email uses confidentiality using a secret key, uses certificates and public keys to" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="sign the email and to send the secret key Ref: Sections 8.1" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="through 8.5" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1821967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review Email provide confidentiality using a secret key Public key and Certificates are used to: Sign the message" xmpDM:startTime="1880767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send the secret key Ref: Section 8.5," xmpDM:startTime="1880767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Review question R19" xmpDM:startTime="1880767" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 3." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Sending Encrypted Emails: The recipient may see &quot;There is a problem with the signature&quot; when they receive the signed message" xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="for the first time." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="This is because they may not have included CAcert as a trusted Certificate Authority." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To fix this they need to click on the signature icon on the right-top of the message and accept CAcert's" xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="certificate." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After this the problem message will go away." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The recipient can also get a CAcert certificate and send a signed message to you." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="When you open that message, the recipient's public key is automatically installed in your outlook." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After both of you have each other's public key, you can send encrypted emails to each other." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can send such messages by by selecting the dropdown menu on the &quot;Encrypt&quot; button (right next to the &quot;Sign&quot;" xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="button), and selecting &quot;Encrypt with S/MIME&quot;." xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1881200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 2." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Installing your Certificate in Outlook: Now open the Outlook App (not the website)." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Click the &quot;File&quot; tab, then &quot;Trust Center&quot; in the popup, then &quot;Trust Center Settings&quot;." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Open the &quot;Email Security&quot; tab, then click the &quot;Import/Export&quot; button under the &quot;Digital IDs (Certificates)&quot; title." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="With the &quot;Import&quot; radio button selected, click the &quot;Browse…&quot; button, and find you certificate." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Enter the password, and click &quot;OK&quot;." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now, you can digitally sign an email by selecting the &quot;Options&quot; tab in the composing a message window, and clicking" xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="the &quot;Sign&quot; button." xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1881733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) When it is done generating the certificate, click &quot;Install the certificate into your browser&quot;." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now in Firefox, click the three horizontal lines directly under the X, and then select &quot;Options&quot;." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="On the left side of the screen, select &quot;Privacy and Security&quot;, then scroll all the way down to the bottom," xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and click the &quot;View Certificates&quot; button." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the popup window, click the &quot;Your Certificates&quot; tab." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select the certificate that you just generated (it should say CAcert WoT User&quot; under &quot;Certificate Name&quot;), and click backup." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Save it somewhere where you will remember it, then give it a name and save it as a &quot;.p12&quot;" xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Windows or “.pem”" xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Mac." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="It will require that you give the file a password, so give it something that you will remember (you will" xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="need this later)." xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1883300" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 1." xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Getting your Certificate: In Firefox, go to CAcert.org," xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="click the &quot;Join&quot; link under the &quot;Join CAcert.org&quot;" xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="title on the right side of the page, then fill out the form." xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Once you have fully registered, login, and click &quot;+ Client Certificates&quot;, then &quot;New&quot; on the right side of the screen." xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select your email, then accept the agreement and click “next.”" xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="A screen with a label &quot;Keysize:&quot; then a dropdown menu, and a button saying “Generate key pair within browser” will" xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="appear." xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the dropdown menu, select &quot;High Grade&quot;, then click the &quot;Generate key pair within browser&quot; button." xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1883533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) To sign your email with a private key you need your digital certificate." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send an encrypted email you need TA’s public key." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="TA’s public key is attached with his/her email." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The steps to obtain a free certificate and use it for email depend upon your email software and your operating" xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="system." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Outlook on Windows 10 using Firefox are as included next." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If you do not have windows, you can do it using remote desktop to a Wash U windows computer." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Mac are similar, except that you need to download your certificate as a PEM file from the CAcert.org" xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="website and use that." xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Further details for Mac are at: https://knowledge.digicert.com/solution/SO6722.html" xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1883800" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 [20 points] You will receive a “signed” email from the TA." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Reply to this email with a “encrypted and signed” email to TA." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If outlook says “There is a problem with the signature on the TA’s message” then click on the signature icon" xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="on the top right of the message and accept CAcert’s certificate." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The warning will go away." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can reply to the TA’s email with a signed encrypted message." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Content of the reply is not important." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Before sending the reply, on the outlook message window, Select View  Options  (More Options ) Security Settings Select" xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="encryption and signature Now send the message." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Outlook is required for both Windows and Mac Only Firefox browser has been tested with both Windows and Mac." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Other browsers may or may not work." xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1883967" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP) Used RSA and IDEA (RSA patent in US until 2000) V2.6.2" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="became legal for use within US and can be downloaded from MIT A patent-free version using public algorithm has also" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="been developed Code published as an OCRable book Initially used web of trust- certificates issued by people Certificates can be" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="registered on public sites, e.g.," xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="MIT hushmail.com" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="is an example of PGP mail service OpenPGP standard [RFC 4880] Ref: http://en.wikipedia.org/wiki/Pretty_Good_Privacy" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="1884533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Signed Secure E-Mail Alice wants to provide secrecy, sender authentication, message integrity." xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Alice uses three keys: her private key, Bob’s public key, newly created secret key Bob uses his private key to" xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="recover the secret key Bob uses Alice’s public key to verify that the message came from Alice and was not" xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="changed." xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Message Message Hash Alice’s Private Key Message Digest Secret Key Secret Key Bob’s Public Key Message Digest Alice’s Private Key" xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Encrypt" xmpDM:startTime="1885533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP) Used RSA and IDEA (RSA patent in US until 2000) V2.6.2" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="became legal for use within US and can be downloaded from MIT A patent-free version using public algorithm has also" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="been developed Code published as an OCRable book Initially used web of trust- certificates issued by people Certificates can be" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="registered on public sites, e.g.," xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="MIT hushmail.com" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="is an example of PGP mail service OpenPGP standard [RFC 4880] Ref: http://en.wikipedia.org/wiki/Pretty_Good_Privacy" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2040667" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 [20 points] You will receive a “signed” email from the TA." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Reply to this email with a “encrypted and signed” email to TA." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If outlook says “There is a problem with the signature on the TA’s message” then click on the signature icon" xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="on the top right of the message and accept CAcert’s certificate." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The warning will go away." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can reply to the TA’s email with a signed encrypted message." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Content of the reply is not important." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Before sending the reply, on the outlook message window, Select View  Options  (More Options ) Security Settings Select" xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="encryption and signature Now send the message." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Outlook is required for both Windows and Mac Only Firefox browser has been tested with both Windows and Mac." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Other browsers may or may not work." xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2040900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) To sign your email with a private key you need your digital certificate." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send an encrypted email you need TA’s public key." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="TA’s public key is attached with his/her email." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The steps to obtain a free certificate and use it for email depend upon your email software and your operating" xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="system." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Outlook on Windows 10 using Firefox are as included next." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="If you do not have windows, you can do it using remote desktop to a Wash U windows computer." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Instructions for Mac are similar, except that you need to download your certificate as a PEM file from the CAcert.org" xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="website and use that." xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Further details for Mac are at: https://knowledge.digicert.com/solution/SO6722.html" xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2041267" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 1." xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Getting your Certificate: In Firefox, go to CAcert.org," xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="click the &quot;Join&quot; link under the &quot;Join CAcert.org&quot;" xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="title on the right side of the page, then fill out the form." xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Once you have fully registered, login, and click &quot;+ Client Certificates&quot;, then &quot;New&quot; on the right side of the screen." xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select your email, then accept the agreement and click “next.”" xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="A screen with a label &quot;Keysize:&quot; then a dropdown menu, and a button saying “Generate key pair within browser” will" xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="appear." xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the dropdown menu, select &quot;High Grade&quot;, then click the &quot;Generate key pair within browser&quot; button." xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2041833" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) When it is done generating the certificate, click &quot;Install the certificate into your browser&quot;." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now in Firefox, click the three horizontal lines directly under the X, and then select &quot;Options&quot;." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="On the left side of the screen, select &quot;Privacy and Security&quot;, then scroll all the way down to the bottom," xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and click the &quot;View Certificates&quot; button." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="In the popup window, click the &quot;Your Certificates&quot; tab." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Select the certificate that you just generated (it should say CAcert WoT User&quot; under &quot;Certificate Name&quot;), and click backup." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Save it somewhere where you will remember it, then give it a name and save it as a &quot;.p12&quot;" xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Windows or “.pem”" xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="file for Mac." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="It will require that you give the file a password, so give it something that you will remember (you will" xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="need this later)." xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2042033" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 2." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Installing your Certificate in Outlook: Now open the Outlook App (not the website)." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Click the &quot;File&quot; tab, then &quot;Trust Center&quot; in the popup, then &quot;Trust Center Settings&quot;." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Open the &quot;Email Security&quot; tab, then click the &quot;Import/Export&quot; button under the &quot;Digital IDs (Certificates)&quot; title." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="With the &quot;Import&quot; radio button selected, click the &quot;Browse…&quot; button, and find you certificate." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Enter the password, and click &quot;OK&quot;." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Now, you can digitally sign an email by selecting the &quot;Options&quot; tab in the composing a message window, and clicking" xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="the &quot;Sign&quot; button." xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2042200" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont) 3." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Sending Encrypted Emails: The recipient may see &quot;There is a problem with the signature&quot; when they receive the signed message" xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="for the first time." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="This is because they may not have included CAcert as a trusted Certificate Authority." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To fix this they need to click on the signature icon on the right-top of the message and accept CAcert's" xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="certificate." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After this the problem message will go away." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="The recipient can also get a CAcert certificate and send a signed message to you." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="When you open that message, the recipient's public key is automatically installed in your outlook." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="After both of you have each other's public key, you can send encrypted emails to each other." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="You can send such messages by by selecting the dropdown menu on the &quot;Encrypt&quot; button (right next to the &quot;Sign&quot;" xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="button), and selecting &quot;Encrypt with S/MIME&quot;." xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2042400" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review Email provide confidentiality using a secret key Public key and Certificates are used to: Sign the message" xmpDM:startTime="2042533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="To send the secret key Ref: Section 8.5," xmpDM:startTime="2042533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Review question R19" xmpDM:startTime="2042533" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary Network security requires confidentiality, integrity, availability, authentication, and non-repudiation Encryption can use one secret key or two keys (public" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and private) Public key is very compute intensive and is generally used to send secret key Digital certificate system is" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="used to certify the public key Secure email uses confidentiality using a secret key, uses certificates and public keys to" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="sign the email and to send the secret key Ref: Sections 8.1" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="through 8.5" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2042733" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Acronyms 3DES Triple DES AES Advanced Encryption Standard CA Certificate authority CBC Cipher Block Chaining (CBC) CRC Cyclic Redundancy Check" xmpDM:startTime="2042867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="DES Data Encryption Standard (DES) FIPS Federal Information Processing standard HMAC ID Identifier IDEA IKE Internet Key Exchange IPSec Secure" xmpDM:startTime="2042867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="IP IV Initialization Vector MAC Message Authentication Code MD4 Message Digest 4 MD5 Message Digest 5" xmpDM:startTime="2042867" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary Network security requires confidentiality, integrity, availability, authentication, and non-repudiation Encryption can use one secret key or two keys (public" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="and private) Public key is very compute intensive and is generally used to send secret key Digital certificate system is" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="used to certify the public key Secure email uses confidentiality using a secret key, uses certificates and public keys to" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="sign the email and to send the secret key Ref: Sections 8.1" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="through 8.5" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2043900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Acronyms 3DES Triple DES AES Advanced Encryption Standard CA Certificate authority CBC Cipher Block Chaining (CBC) CRC Cyclic Redundancy Check" xmpDM:startTime="2046900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="DES Data Encryption Standard (DES) FIPS Federal Information Processing standard HMAC ID Identifier IDEA IKE Internet Key Exchange IPSec Secure" xmpDM:startTime="2046900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="IP IV Initialization Vector MAC Message Authentication Code MD4 Message Digest 4 MD5 Message Digest 5" xmpDM:startTime="2046900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Acronyms (Cont) NIST National Institute of Science and Technology OCR Optical Character Recognition OpenPGP Open PGP PGP Pretty Good Privacy" xmpDM:startTime="2047500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="RFC Request for Comment RSA Rivest, Shamir, Adleman SHA Secure Hash SSL Secure Socket Layer TA Teaching Assistant US United" xmpDM:startTime="2047500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="States VPN Virtual Private Network WEP Wired Eqivalent Privacy XOR Exclusive OR" xmpDM:startTime="2047500" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Scan This to Download These Slides Raj Jain http://rajjain.com" xmpDM:startTime="2047900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="http://www.cse.wustl.edu/~jain/cse473-19/i_8sec.htm" xmpDM:startTime="2047900" xmpDM:duration="1000"/></rdf:li><rdf:li><rdf:Description xmpDM:name="" xmpDM:startTime="2047900" xmpDM:duration="1000"/></rdf:li></rdf:Seq>
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               <rdf:li>
                  <rdf:Description xmpDM:trackType="TableOfContents" xmpDM:frameRate="f1000" xmpDM:trackName="Table of Contents">
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                           <rdf:li><rdf:Description xmpDM:name="End Point Authentication" xmpDM:startTime="1433" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="0" tscDM:imageoffset="0" tscDM:imagerect="0, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="X.509 Sample (Cont)" xmpDM:startTime="188333" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="1" tscDM:imageoffset="0" tscDM:imagerect="75, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="End Point Authentication" xmpDM:startTime="194233" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="2" tscDM:imageoffset="0" tscDM:imagerect="150, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Hashes, Signatures, Certificates" xmpDM:startTime="198200" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="3" tscDM:imageoffset="0" tscDM:imagerect="225, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email" xmpDM:startTime="414567" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="4" tscDM:imageoffset="0" tscDM:imagerect="300, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure E-Mail" xmpDM:startTime="447800" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="5" tscDM:imageoffset="0" tscDM:imagerect="375, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Signed Secure E-Mail" xmpDM:startTime="769267" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="6" tscDM:imageoffset="0" tscDM:imagerect="450, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP)" xmpDM:startTime="925467" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="7" tscDM:imageoffset="0" tscDM:imagerect="525, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8" xmpDM:startTime="1274433" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="8" tscDM:imageoffset="0" tscDM:imagerect="600, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1568500" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="9" tscDM:imageoffset="0" tscDM:imagerect="675, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1622700" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="10" tscDM:imageoffset="0" tscDM:imagerect="750, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1640300" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="11" tscDM:imageoffset="0" tscDM:imagerect="825, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1647800" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="12" tscDM:imageoffset="0" tscDM:imagerect="900, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1688567" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="13" tscDM:imageoffset="0" tscDM:imagerect="975, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review" xmpDM:startTime="1698167" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="14" tscDM:imageoffset="0" tscDM:imagerect="1050, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary" xmpDM:startTime="1793767" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="15" tscDM:imageoffset="0" tscDM:imagerect="1125, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review" xmpDM:startTime="1795867" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="16" tscDM:imageoffset="0" tscDM:imagerect="1200, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary" xmpDM:startTime="1821967" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="17" tscDM:imageoffset="0" tscDM:imagerect="1275, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review" xmpDM:startTime="1880767" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="18" tscDM:imageoffset="0" tscDM:imagerect="1350, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1881200" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="19" tscDM:imageoffset="0" tscDM:imagerect="1425, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1881733" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="20" tscDM:imageoffset="0" tscDM:imagerect="1500, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1883300" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="21" tscDM:imageoffset="0" tscDM:imagerect="1575, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1883533" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="22" tscDM:imageoffset="0" tscDM:imagerect="1650, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="1883800" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="23" tscDM:imageoffset="0" tscDM:imagerect="1725, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8" xmpDM:startTime="1883967" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="24" tscDM:imageoffset="0" tscDM:imagerect="1800, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP)" xmpDM:startTime="1884533" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="25" tscDM:imageoffset="0" tscDM:imagerect="1875, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Signed Secure E-Mail" xmpDM:startTime="1885533" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="26" tscDM:imageoffset="0" tscDM:imagerect="1950, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Pretty Good Privacy (PGP)" xmpDM:startTime="2040667" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="27" tscDM:imageoffset="0" tscDM:imagerect="2025, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8" xmpDM:startTime="2040900" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="28" tscDM:imageoffset="0" tscDM:imagerect="2100, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="2041267" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="29" tscDM:imageoffset="0" tscDM:imagerect="2175, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="2041833" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="30" tscDM:imageoffset="0" tscDM:imagerect="2250, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="2042033" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="31" tscDM:imageoffset="0" tscDM:imagerect="2325, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="2042200" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="32" tscDM:imageoffset="0" tscDM:imagerect="2400, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Lab 8 (Cont)" xmpDM:startTime="2042400" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="33" tscDM:imageoffset="0" tscDM:imagerect="2475, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Secure Email: Review" xmpDM:startTime="2042533" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="34" tscDM:imageoffset="0" tscDM:imagerect="2550, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary" xmpDM:startTime="2042733" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="35" tscDM:imageoffset="0" tscDM:imagerect="2625, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Acronyms" xmpDM:startTime="2042867" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="36" tscDM:imageoffset="0" tscDM:imagerect="2700, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Summary" xmpDM:startTime="2043900" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="37" tscDM:imageoffset="0" tscDM:imagerect="2775, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Acronyms" xmpDM:startTime="2046900" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="38" tscDM:imageoffset="0" tscDM:imagerect="2850, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name=" Acronyms (Cont)" xmpDM:startTime="2047500" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="39" tscDM:imageoffset="0" tscDM:imagerect="2925, 0, 75, 56"/></rdf:li><rdf:li><rdf:Description xmpDM:name="Scan This to Download These Slides" xmpDM:startTime="2047900" tscDM:image="i_8sec2_Thumbnails.png" tscDM:imageindex="40" tscDM:imageoffset="0" tscDM:imagerect="3000, 0, 75, 56"/></rdf:li></rdf:Seq>
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         <tscDM:controller>
            <rdf:Description xmpDM:name="tscplayer">
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                  <rdf:Bag>
                     <rdf:li xmpDM:name="autohide" xmpDM:value="false"/><rdf:li xmpDM:name="autoplay" xmpDM:value="true"/><rdf:li xmpDM:name="loop" xmpDM:value="false"/><rdf:li xmpDM:name="searchable" xmpDM:value="true"/><rdf:li xmpDM:name="captionsenabled" xmpDM:value="false"/><rdf:li xmpDM:name="sidebarenabled" xmpDM:value="false"/><rdf:li xmpDM:name="unicodeenabled" xmpDM:value="false"/><rdf:li xmpDM:name="backgroundcolor" xmpDM:value="000000"/><rdf:li xmpDM:name="sidebarlocation" xmpDM:value="left"/><rdf:li xmpDM:name="endaction" xmpDM:value="stop"/><rdf:li xmpDM:name="endactionparam" xmpDM:value="true"/><rdf:li xmpDM:name="locale" xmpDM:value="en-US"/></rdf:Bag>
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               <tscDM:controllerText>
                  <rdf:Bag>
                  </rdf:Bag>
               </tscDM:controllerText>
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         <tscDM:contentList>
            <rdf:Description>
               <tscDM:files>
                  <rdf:Seq>
                     <rdf:li xmpDM:name="0" xmpDM:value="i_8sec2.mp4"/><rdf:li xmpDM:name="1" xmpDM:value="i_8sec2_First_Frame.png"/><rdf:li xmpDM:name="2" xmpDM:value="i_8sec2_Thumbnails.png"/></rdf:Seq>
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