https://github.com/y011d4/my-ctf-challenges/tree/main/2023-HackTMCTF-2023/crypto
https://github.com/tcode2k16/ctf-challenges/tree/main/hacktm-23-misc-know-your-lambda-calculus/chal
To all my CS2100 Computer Organisation students, I hope you've enjoyed the lectures thus far on RISC-V assembly.
I have set-up an online service for you to test your own RISC-V code!
Simply connect to the service through tcp:
X x
nc 34.141.16.87 10000
Credit: Thanks to `@fmash16` for his emulator! I didn't even have to compile the emulator binary myself :O <https://github.com/fmash16/riscv_emulator/blob/main/main>
[cs2100.zip](<https://ctf.hacktm.ro/download?file_key=9e541144e347d93267d460a9bff2b34c01919e024229cbbae08b17ab9d58aa24&team_key=038efa8bdc94e6ab9b6cfa24dd4baf147d5d76857feb6f2dfd4b789fd2661141>)
790c0f8bc8e61c1f52f00dbb9999b862
I recently found out about wasm and tried to create a simple game:
[<http://34.141.16.87:20000/index.html>](<http://34.141.16.87:20000/index.html>)
[levelmaker.zip](<https://ctf.hacktm.ro/download?file_key=552c3c78cf7c98fdcbec89d104ffa39e695957ca0a4a90452ee09a0980cc7347&team_key=038efa8bdc94e6ab9b6cfa24dd4baf147d5d76857feb6f2dfd4b789fd2661141>)
7f69235466940c8d93d96b8fd9ab3d72
After a bit of fiddling around with the wasm game I came across web workers and tried to speedup the game even more!
[<http://34.141.16.87:20001/index.html>](<http://34.141.16.87:20000/index.html>)
Note; P
It is recommended to clone the challenge locally first. This is because of some security headers that prevent SharedArrayBuffers being shared across threads on non localhost / https hosts.
[l3v3lm4k3r.zip](<https://ctf.hacktm.ro/download?file_key=be6ed1e62b109098b6d95b6cf264225cd110135c497b7a58113a3321af749ec9&team_key=038efa8bdc94e6ab9b6cfa24dd4baf147d5d76857feb6f2dfd4b789fd2661141>)
33ae57d9fb17f97ab2b9c5f668a6f604
So you think you can run a business, ha?
Alright then, here are the keys to the Romanian Flag Factory.
It's an old factory, with a traditional production line, which consists of 4 workers.
They will take care of assembling the Sewing Machine, sewing the Flag and boxing it for delivery.
Your only job is to coordinate them and provide materials.
nc 34.141.16.87 40000
I'm expecting profit, btw!
(Ubuntu 20.04)
[fabrica](<https://ctf.hacktm.ro/download?file_key=a49cee9fd1ed4e734636c8656d39955734659d82247cb239810dd8ce5e0d68b6&team_key=038efa8bdc94e6ab9b6cfa24dd4baf147d5d76857feb6f2dfd4b789fd2661141>)
a66fbd67ca6faadcd32bd773aa6ccb10