Hack & Roll 2018

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On 27 to 28 January, HCIRS participated in NUS Hack & Roll 2018. Within 24 hours, members have to create a “hack” to present to the judges and other participants. This year HCIRS had a hacking good time producing 4 projects:

BW – Optical Localisation Plus Robotics

Cheap and Simple Indoor Localisation for Collaborative Robotics

Instead of having bots in a play field to act autonomously, a central server with a god view of the play field controls them by dispatching commands to each of the bots. This greatly reduces the cost and complexity of the set up, as each bot no longer needs to be fitted with a wide array of expensive sensors, and the server only requires a camera.

The god view is attained by having unique AR markers indicating landmarks in the play field, such as the corners of the play field, the bots, and objects for the bots to interact with. By normalizing the images detected due to the markers and doing some math, the server can calculate exact movements required by the bots, and dispatch them to the bots.

Processed image

Read more at: https://devpost.com/software/bw-optical-localisation-plus-robotics

BX – The Scarlet Record

Embark on an emotional adventure through the wastelands as Aoi, an android in a future post-apocalyptic world

The Visual Novel teaches basic to intermediate computer science concepts within its immersive and engaging storyline. Its broad focus on subject areas including Linux, Operating Systems, Networking, Web, and Cyber Security also helps expose players to different aspects of computer science.

BX - The Scarlet Record – screenshot 6

Read more at: https://devpost.com/software/the-scarlet-record

BY – Data Transmission using Whatsapp

Out with biased Internet, in with Web in Whatsapp Web

Unhappy with the lack of Net Neutrality in the 21st Century and wanted to change this, this project provide a means of data transmission over a high data traffic network – in the case of this project, Whatsapp. This project shows that even through the whitelisting of specific applications do not effectively restrict one’s Internet access, as one can, just as in our project, make use of high data traffic applications and websites in order to improve their Internet access to lower data traffic ones.

Read more at: https://devpost.com/software/by-data-transmission-using-whatsapp

BZ – Secure Online Sharing

Securely save and share files through distributed secret sharing

The project provide a platform for people to securely store their files. Files are encrypted (with the original file discarded), and the secret decryption key (which is also later discarded) is split into shares which are essentially “keys” that, when enough are put together, allow for the original key to be recovered. Gaining access to the files requires an adjustable number of shares that are combined together to form the final secret. For example, if the number of shares is set to 5 and the threshold is 3, there will be a total of 5 shares to be distributed, and 3 or more are required for the original key to be recovered and hence decrypt the file. This can be used in a variety of ways, such as to ensure credibility and also to make sure that files can be retrieved still even if some of the shares are lost. To further add security, whenever the file is decrypted, the decrypted file is promptly deleted after the user downloads the file.

Read more at: https://devpost.com/software/secure-online-sharing

Out of the 4 projects, 2 won an award at the event. The Scarlet Road won the People’s Choice Award while Data Transmission using Whatsapp won the Platinum Sponsor Sea-pecial Prize.
See you at Hack & Roll 2019!

Cyber Security

Hwa Chong Clinch Top Spots at CDDC Yet Again

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The Infocomm and Robotics Society has done Hwa Chong proud with another victory at this year’s Cyber Defenders Discovery Camp (CDDC). Two groups of students were sent to compete in the Junior College Category, butting heads against more than 400 participants across the field. Our students underwent a 3 day training program where they learnt the ropes, and then put their newly acquired skills to the test in a gruelling competition lasting two entire days. After slogging away at a tremendous array of well over 100 challenges, our teams accumulated enough points to sweep the top two spots for their category.

The First Place Team displayed on the left comprises (from left to right) Ding Ruida, Li Bailin, Won Ying Keat and Zhang Chenxin.
The Second Place Team on the right comprises (from left to right) Liew Zhao Wei, Eleanor Loh, Tan Wei Seng and Lee Ian Ee.



There were also familiar faces at the competition. HCIRS alumni Ho Jie Feng and Ragul Balaji participated with two other members in the University/Polytechnic Category and secured First Place overall.

Congratulations to all our high achievers!

Cyber Security

Hwa Chong Bags First Place at Cross CTF

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A group of Hwa Chong students and alumni have managed to bag first place at Cross CTF 2017, a cyber security competition open to teams from various tertiary institutions. They clinched first at the preliminary round, earning a spot at the finals. On the 17th of June, they arrived at SMU to compete against 18 other teams in the 24-hour live attack-defense Capture the Flag (CTF) finals, and managed to take first place with a substantial margin over other competitors.

The team T0X1C V4P0R comprises Ho Jiefeng (on the left), Li Bailin (left of Jiefeng), and Ragul Balaji (on the far right)

Congratulations to team T0X1C V4P0R once again!


Hwa Chong Students Improve on Performance in 20th National Olympiad in Informatics

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For the 20th National Olympiad in Informatics, Hwa Chong has once again achieved excellent results! The team garnered a total of 5 Golds, 3 Silvers, 1 Bronze and 1 Honourable Mention. Furthermore, the team obtained the top secondary school award as well as the runner-up junior college award. Finally, two members of the team obtained the top secondary school contestants award.

We would like to thank our seniors and teachers (Mr Koh Kim Tian & Ms Goh Keng Wah) for their continued support and guidance, and will strive to do even better in future editions!

Hwa Chong @ NOI 2017

Cyber Security

Hwa Chong clinches top positions in Cybersecurity Competition

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Two teams from Hwa Chong Infocomm and Robotics Club Society participated in the annual Cyber Defenders Discovery Camp.

After a gruellling nine-hour hacking and tinkering, both of our teams emerged within the Top 5, including the highly coveted first place, amongst a total of 100 teams.

For more details: https://www.dsta.gov.sg/cddc/highlights

champion_groupChampion team (t0x1c v4p0r) consists (left to right): Ragul, Yicheng, Bailin, Jie Feng

radar_teamTeam (az1d0az1d3 az1d3) Guy in black: Ying Keat ; Guy in white: Radar


19th Singapore National Olympiad in Informatics (NOI)

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Hwa Chong - NOI'16

Hwa Chong racked quite a few awards at the 19th annual Singapore National Olympiad in Informatics (NOI). This year we continued our tradition of excellence taking home 10 medals ( 100% medal rate! ), 2 Golds 6 Silvers & 2 Bronzes. We also took home the runner up for best secondary school & the youngest medallist! We hope this is just the beginning to another exciting year of competitive programming activities in Hwa Chong.


A huge thanks to our seniors( Wang ZhiJian, Gan “William” Wei Liang, Mark Theng & Bernard ), teachers ( Mr Koh KT & Mrs Goh KW ), student trainers ( Damian, Ming Jiang, Wei Seng & Jiefeng ) as well as the NUS Dec training staff & students ( Wen Yuen[RI], Guang Xuan[RI], Jacob[NUSH], Sean Pek[ex-NUSH], Howe Choong Yin[ex-NUSH] & Ranald[ex-RI] ) and for teaching and challenging the limits of what we could do 😊!


Hwa Chong - NOI'16
Hwa Chong – NOI’16