Difference between revisions of "W4504 Capture the Flag IV"
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{{ComingSoon| This page will serve as a writeup for the problems from | {{ComingSoon| This page will serve as a writeup for the problems from cybersecurity CTF 4}} | ||
== Cryptography == | |||
=== Base64 === | |||
<pre> | |||
[25 Points] Vm0wd2QyUXlWa2hWV0doVVYwZG9jRlZ0TVc5V1JsbDNXa1JTVjFac2JETlhhMUpUVjBaS2RHVkVRbHBOTTBKSVZtcEdTMk15U2tWVWJHaG9UV3N3ZUZadGNFSmxSbVJJVm10a1dHSkdjRTlaYlRGdlZWWmtWMXBJY0d4U2JHdzBWa2MxVDFsV1NuUlZia0pYWVRGd2FGcFdXbUZqTVd0NllVWlNUbFpVVmtwV2JHUXdWakZrU0ZOcmJGSmhlbXhYV1d4b2IxWXhjRlpYYkhCc1VtMVNNRnBGV2s5VWJFcEhWMnBhVjJGcmEzaFdha3BIVWpGT2RWVnNXbWxTTW1oWFZtMTBWMU14VWtkVmJrNVlZbFZhV0ZsclpGTmxWbGw1WlVWT1YwMXJWak5aTUZwVFZqRmFWMk5HVG1GU1JWcEVWbGQ0UTFaVk1VVk5SREE5 | |||
</pre> | |||
Based on the challenge name and the given encoded message, we can assume that this message is encoded using base 64. We can decode this message from base 64 using an online tool. When we decode the given message we get another string that looks like base 64. We can decode this new encoded message as well. We will repeat this process several times until we decode this message: | |||
<pre> | |||
YWhzQ1RGe0JAczNfNjR9 | |||
</pre> | |||
The result of decoding this is '''ahsCTF{B@s3_64}'''. | |||
Revision as of 16:39, 10 February 2021
Within these castle walls be forged Mavens of Computer Science ...
— Merlin, The Coder
 |
Coming Soon |
| This page will serve as a writeup for the problems from cybersecurity CTF 4 |
Cryptography[edit]
Base64[edit]
[25 Points] Vm0wd2QyUXlWa2hWV0doVVYwZG9jRlZ0TVc5V1JsbDNXa1JTVjFac2JETlhhMUpUVjBaS2RHVkVRbHBOTTBKSVZtcEdTMk15U2tWVWJHaG9UV3N3ZUZadGNFSmxSbVJJVm10a1dHSkdjRTlaYlRGdlZWWmtWMXBJY0d4U2JHdzBWa2MxVDFsV1NuUlZia0pYWVRGd2FGcFdXbUZqTVd0NllVWlNUbFpVVmtwV2JHUXdWakZrU0ZOcmJGSmhlbXhYV1d4b2IxWXhjRlpYYkhCc1VtMVNNRnBGV2s5VWJFcEhWMnBhVjJGcmEzaFdha3BIVWpGT2RWVnNXbWxTTW1oWFZtMTBWMU14VWtkVmJrNVlZbFZhV0ZsclpGTmxWbGw1WlVWT1YwMXJWak5aTUZwVFZqRmFWMk5HVG1GU1JWcEVWbGQ0UTFaVk1VVk5SREE5
Based on the challenge name and the given encoded message, we can assume that this message is encoded using base 64. We can decode this message from base 64 using an online tool. When we decode the given message we get another string that looks like base 64. We can decode this new encoded message as well. We will repeat this process several times until we decode this message:
YWhzQ1RGe0JAczNfNjR9
The result of decoding this is ahsCTF{B@s3_64}.
