Save the message in a folder on the desktop and name it secret.txt. Save the graphic as a .bmp file in a folder on the desktop and name it graphic.bmp.
b. Save the message in a folder on the desktop and name it secret.txt.
c. Close the Notepad application. Step 3: Create a simple .bmp graphics file. a. Open the Windows Paint application and create a simple graphic. For example, you can write your first name using the pencil tool or text tool and apply some color using the spray can or fill tool.b. Save the graphic as a .bmp file in a folder on the desktop and name it graphic.bmp.
c. Close the Paint application. Step 4: Create a secret password using the Vigenere cipher. a. Choose a passphrase to be encrypted using the Vigenere cipher and record it here. Answers will vary Do not share the passphrase with your partner. This passphrase will be used later to protect the text file when it is embedded in the graphics file. b. Choose a cipher keyword to be used when encrypting and decrypting the passphrase and record it here. Answers will vary c. Encrypt the passphrase using the cipher keyword and the procedure described in Part 3, Step 2. Record the encrypted passphrase here. Answers will vary Step 5: Embed the message into a graphic image file. a. Open the S-Tools.exe application. b. Locate the file named graphic.bmp, which you saved previously. Determine its size by right-clicking the file and selecting Properties. Record the file size, for example 2,359,350 bytes. Answer will vary but should be specified in bytes, not MB. c. Drag the graphic.bmp file into the S-Tools window. d. Drag the file secret.txt, which you created in Step 2, and place it inside the graphic.bmp window. The image should still be displayed. A dialog box is displayed showing the number of bytes being hidden. You can enter a passphrase and select the encryption algorithm to be used. The default algorithm is IDEA. CCNA Security All contents are Copyright © 1992 –2012 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 8 of 9 Step 6: Use the unencrypted passphrase to protect the embedded text file. a. Enter the unencrypted passphrase from Step 4 in the Passphrase and Verify passphrase fields. b. Choose Triple DES from the Encryption Algorithm field and click OK. This creates a second image with the name “hidden data”. c. Right-click the hidden data graphic image and choose Save As from the menu. Name the file graphic2 and save it as a bmp file. d. Close the S-Tools application. Step 7: Provide the graphic2.bmp file to your partner. a. Provide a copy of your graphic2.bmp file to your partner. You can do this by sharing folders if PCs were cabled together and IP addresses were assigned in Part 1 of the lab. You can also copy the file onto a removable drive flash drive or floppy disk, or send it as an email attachment if you are performing the lab remotely. b. Provide your partner with the Vigenere-encrypted passphrase from Step 4 and the cipher keyword that you used to create it. CCNA Security All contents are Copyright © 1992 –2012 Cisco Systems, Inc. All rights reserved. This document is Cisco Public Information. Page 9 of 9 Step 8: Decrypt the Vigenere password from your partner. Decrypt your partner’s passphrase using the procedure described in Part 1, Step 4. This is done so that you can use it with S- Tools to reveal the hidden message embedded in your partner’s graphic. Step 9: Reveal the embedded message from your partner. a. Open the S-Tools application.b. Locate the graphic2.bmp file from your partner, and determine how large it is using the same
Parts
» CCNA Security 1.1 Instructor Lab Manual
» Lab A: Researching Network Attacks and Security Audit Tools
» Lab A: Securing the Router for Administrative Access
» Use the username command to create the user ID with the highest possible privilege level and a
» Issue the undebug all or the no debug ntp all command to turn off debugging.
» Click OK in the Commands Delivery Status window.
» Use the show logging command to see the type and level of logging enabled.
» Save the running config to the startup config using the copy run start command.
» Lab A: Securing Administrative Access Using AAA and RADIUS
» Click Send and you should see a Send Access_Request message indicating the server at
» Clear the log on the WinRadius server by choosing Log Clear from the main menu.
» Lab A: Configuring CBAC and Zone-Based Firewalls
» Issue the show run command to review the current basic configuration on R1.
» Display the Extended ACL named autosec_firewall_acl, which is applied to S000 inbound.
» Display the Extended ACL named autosec_firewall_acl that is applied to S000 inbound.
» Click Finish to complete the Firewall wizard.
» Lab A: Configuring an Intrusion Prevention System IPS Using the CLI and CCP
» From the R1 CLI, verify that the directory is present using the dir flash: or dir flash:ipsdir
» Apply the IPS rule to an interface with the ip ips name direction command in interface
» Verify connectivity between R1 and PC-A, the TFTP server, using the ping command.
» Use the show ip ips all command to see an IPS configuration status summary. To which
» For Protocol, select tftp from the drop-down menu. Enter the IP address of the PC-C TFTP server
» Lab A: Securing Layer 2 Switches Instructor Version
» From the router R1 CLI, use the show interface command and record the MAC address of the
» Set the SPAN source interface using the monitor session command in global configuration mode.
» Lab A: Exploring Encryption Methods Instructor
» Lab A: Configuring a Site-to-Site VPN Using Cisco IOS and CCP
» Verify the IKE policy with the show crypto isakmp policy command.
» Save the running config to the startup config for R1 and R3 using the copy run start command.
» Click the Launch the selected task button to begin the CCP Site-to-Site VPN wizard.
» Lab B: Configuring a Remote Access VPN Server and Client
» In the Command Delivery Status window, click OK. How many commands are delivered? 103 with
» Lab C Optional: Configuring a Remote Access VPN Server and Client
» Lab A: Security Policy Development and Implementation
» Verify that R1 and R3 have made an association with R2 using the show ntp associations
» Choose FastEthernet 01 as the Inside Trusted interface and Serial 001 as the Outside Untrusted
» From PC-A, Telnet to R2 at IP address 10.1.1.2 using the vty line password ciscovtypass.
» If the ipsdir directory is not listed, create it.
» Secure the router running configuration and securely archive it in persistent storage flash.
» Lab A: Configuring ASA Basic Settings and Firewall Using CLI
» Display the ASA file system using the show file system command to determine what prefixes are
» Display the current running configuration using the show running-config command.
» You can configure the ASA to accept HTTPS connections using the http command. This allows
» Issue the show route command to display the ASA routing table and the static default route just
» Save the RSA keys to persistent flash memory using either the copy run start or write mem
» Lab B: Configuring ASA Basic Settings and Firewall Using ASDM
» View this Access Rule in ASDM by choosing Configuration Firewall Access Rules. It appears
» Lab C: Configuring Clientless and AnyConnect Remote Access SSL VPNs Using ASDM
» Enable HTTP access to R1 using the ip http server command in global config mode. Also set
» From the Add Bookmark List window, click Add to open the Add Bookmark window. Enter Web Mail as
» Lab D: Configuring a Site-to-Site IPsec VPN Using CCP and ASDM
» Use the reload command to restart the ASA. This will cause the ASA to come up in CLI Setup
» In the Peer Identity section, select Peer with static IP address and enter the IP address of the
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