# Level 10 → 11 ## Level Goal The password for the next level is stored in the file data.txt, which contains base64 encoded data ## Write-Up 1. List the content of the current directory: ```sh ls ```
ls
This confirms the presence of the data.txt file. 2. Display the content of the data.txt file: ```sh cat data.txt ```
cat data.txt
This revealed a string of base64 encoded data. 3. To decode the base64 data, the following command was used: ```sh base64 -d data.txt ```
base64 -d data.txt
* `base64`: The command used for encoding/decoding base64 data * `-d`: Flag specifying decode mode (as opposed to encode) * `data.txt`: The input file containing the encoded data The password retrieved: dtR173fZKb0RRsDFSGsg2RWnpNVj3qRr 4. Access the next level: ```sh ssh bandit11@bandit.labs.overthewire.org -p 2220 ``` Enter the password when prompted. ## Lessons Learned * Base64 is a common encoding scheme used to represent binary data in ASCII string format * The `base64` command in Unix systems can both encode and decode base64 data * Simple command-line tools can often decode common data formats without need for specialized software \-- Othmane