Writeups for the challenges from DownUnderCTF 2021

Last update: Dec 31, 2022

Related tags

Deep Learning Challenges_2021_Public

Overview

cloud

Challenge	Author	Difficulty	Release Round
Bad Bucket	Blue Alder	easy	round 1
Not as Bad Bucket	Blue Alder	easy	round 1
Lost n Found	Blue Alder	medium	round 1
Whale Blog	Blue Alder	medium	round 2

crypto

Challenge	Author	Difficulty	Release Round
Substitution Cipher I	joseph#8210	beginner	round 1
Break Me!	2keebs	easy	round 1
OTWhat 1	nullableVoid*#7225	easy	round 2
Substitution Cipher II	joseph#8210	easy	round 1
treasure	joseph#8210	easy	round 1
OTWhat 2	nullableVoid*#7225	medium	round 2
Secuchat	nullableVoid*#7225	medium	round 1
1337crypt v2	joseph#8210	hard	round 2
power sign	joseph#8210	hard	round 1
Substitution Cipher III	joseph#8210	hard	round 1
yadlp	joseph#8210	hard	round 1

forensics

Challenge	Author	Difficulty	Release Round
Retro!	QUTWH	beginner	round 1
Do the loop!	QUTWH	easy	round 1
How to pronounce GIF	[email protected]	easy	round 1
That's Not My Name	Conletz#5420	easy	round 1
The File is Lava	TheDon*#2152	medium	round 2
Want to Play a Game?	Conletz#5420	medium	round 1

misc

Challenge	Author	Difficulty	Release Round
Discord	Crem	none	round 1
Twitter	Crem	none	round 1
Builder	BearArms (Cybears)	beginner	round 1
General Skills Quiz	Crem	beginner	round 1
The Introduction	Crem	beginner	round 1
Floormat	todo#7331	easy	round 1
GammaSafe	nullableVoid*#7225	easy	round 2
rabbit	Crem + z3kxTa	easy	round 1
Canary	247CTF.com	medium	round 1
i-pee fs	dot	medium	round 2
Flying Spaghetti Monster	hypersphere (Cybears)	hard	round 1

survey

Challenge	Author	Difficulty	Release Round
Survey	DUCTF	none	round 3

OSINT

Challenge	Author	Difficulty	Release Round
Who goes there?	[email protected]	beginner	round 1
(back) On the rails	[email protected]	easy	round 2
Get over it!	QUTWH	easy	round 1
The Internet is Written in Ink	Crem	easy	round 1
Apartment Views	[email protected]	medium	round 2
eyespy	[email protected]	medium	round 2
Heart of the nation	[email protected]	medium	round 1
Sharing is Caring	[email protected]	hard	round 2

pwn

Challenge	Author	Difficulty	Release Round
deadcode	[email protected]	beginner	round 1
Leaking like a sieve	[email protected]	beginner	round 1
babygame	grub	easy	round 1
outBackdoor	[email protected]	easy	round 1
write what where	joseph#8210	easy	round 2
Oversight	B3NNY	medium	round 1
ready, bounce, pwn!	joseph#8210	medium	round 2
DUCTFnote	grub	hard	round 1
encrypted note	joseph#8210	hard	round 1

reversing

Challenge	Author	Difficulty	Release Round
no strings	joseph#8210	beginner	round 1
flag loader	joseph#8210	easy	round 1
Juniperus	nullableVoid*#7225	easy	round 2
bullet hell	joseph#8210	medium	round 2
connect the dots	joseph#8210	medium	round 1
flag printer	joseph#8210	medium	round 1
gamer	joseph#8210	medium	round 1
flag checker	joseph#8210	hard	round 1

web

Challenge	Author	Difficulty	Release Round
Cowboy World	Crem	beginner	round 1
Inside Out	Solopie	beginner	round 1
Chainreaction	n00bmaster	easy	round 1
Farsight	todo#7331	easy	round 2
Secret Bin	todo#7331	easy	round 2
Ezmail	todo#7331	medium	round 1
JWT	247CTF.com	medium	round 1
x1337 Sk1d R3p0rt3r	xesh	medium	round 2
Zap	todo#7331	medium	round 1
Jasons Proxy	xesh	hard	round 2
Notepad	todo#7331	hard	round 1

Owner

DownUnderCTF

DownUnderCTF

DownUnderCTF

GitHub Repository https://downunderctf.com

A Pytorch implementation of SMU: SMOOTH ACTIVATION FUNCTION FOR DEEP NETWORKS USING SMOOTHING MAXIMUM TECHNIQUE

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36 Dec 24, 2022

Source code for our EMNLP'21 paper 《Raise a Child in Large Language Model: Towards Effective and Generalizable Fine-tuning》

Child-Tuning Source code for EMNLP 2021 Long paper: Raise a Child in Large Language Model: Towards Effective and Generalizable Fine-tuning. 1. Environ

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A clean implementation based on AlphaZero for any game in any framework + tutorial + Othello/Gobang/TicTacToe/Connect4 and more

Alpha Zero General (any game, any framework!) A simplified, highly flexible, commented and (hopefully) easy to understand implementation of self-play

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Implementation of SSMF: Shifting Seasonal Matrix Factorization

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9 Jun 10, 2022

Experiments for distributed optimization algorithms

Network-Distributed Algorithm Experiments -- This repository contains a set of optimization algorithms and objective functions, and all code needed to

40 Dec 04, 2022

Human head pose estimation using Keras over TensorFlow.

RealHePoNet: a robust single-stage ConvNet for head pose estimation in the wild.

71 Jan 05, 2023

Expressive Body Capture: 3D Hands, Face, and Body from a Single Image

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1.3k Jan 07, 2023

Trying to understand alias-free-gan.

alias-free-gan-explanation Trying to understand alias-free-gan in my own way. [Chinese Version 中文版本] CC-BY-4.0 License. Tzu-Heng Lin motivation of thi

12 Mar 17, 2022

Contrastive learning of Class-agnostic Activation Map for Weakly Supervised Object Localization and Semantic Segmentation (CVPR 2022)

CCAM (Unsupervised) Code repository for our paper "CCAM: Contrastive learning of Class-agnostic Activation Map for Weakly Supervised Object Localizati

113 Dec 27, 2022

Deep Learning Specialization by Andrew Ng, deeplearning.ai.

Deep Learning Specialization on Coursera Master Deep Learning, and Break into AI This is my personal projects for the course. The course covers deep l

1.5k Jan 07, 2023

Local Attention - Flax module for Jax

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16 Jun 16, 2022

Generative Adversarial Networks for High Energy Physics extended to a multi-layer calorimeter simulation

CaloGAN Simulating 3D High Energy Particle Showers in Multi-Layer Electromagnetic Calorimeters with Generative Adversarial Networks. This repository c

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Official Implementation of "Third Time's the Charm? Image and Video Editing with StyleGAN3" https://arxiv.org/abs/2201.13433

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531 Dec 20, 2022

Aiming at the common training datsets split, spectrum preprocessing, wavelength select and calibration models algorithm involved in the spectral analysis process

Aiming at the common training datsets split, spectrum preprocessing, wavelength select and calibration models algorithm involved in the spectral analysis process, a complete algorithm library is esta

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Semi-supervised Semantic Segmentation with Directional Context-aware Consistency (CVPR 2021)

Semi-supervised Semantic Segmentation with Directional Context-aware Consistency (CAC) Xin Lai*, Zhuotao Tian*, Li Jiang, Shu Liu, Hengshuang Zhao, Li

137 Dec 14, 2022

A Runtime method overload decorator which should behave like a compiled language

strongtyping-pyoverload A Runtime method overload decorator which should behave like a compiled language there is a override decorator from typing whi

20 Oct 31, 2022

Paddle implementation for "Cross-Lingual Word Embedding Refinement by ℓ1 Norm Optimisation" (NAACL 2021)

L1-Refinement Paddle implementation for "Cross-Lingual Word Embedding Refinement by ℓ1 Norm Optimisation" (NAACL 2021) 🙈 A more detailed readme is co

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Code for: Imagine by Reasoning: A Reasoning-Based Implicit Semantic Data Augmentation for Long-Tailed Classification

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CLDF dataset derived from Robbeets et al.'s "Triangulation Supports Agricultural Spread" from 2021

CLDF dataset derived from Robbeets et al.'s "Triangulation Supports Agricultural Spread" from 2021 How to cite If you use these data please cite the o

2 Dec 20, 2021

Implementation of Bagging and AdaBoost Algorithm

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