RoC Research

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- Next Next Done

Down The Rabbit Hole: Low-Cost PVC ID Card Printing

Posted byby Jason Chee
August 29, 2023
5 minute read

Introduction A few months ago, I needed to print some ID Cards, but local vendors quoted me a hefty S$10 per card, a price I wasn’t willing to pay for…

0 Comments

Posted in
- Lifestyle

My “Lushious” Self-Care Bathtub

Posted byby Jason Chee
September 8, 2022
4 minute read

When I moved into my current house a few years ago, we did away with the bathtub in the guest bedroom’s bathroom (against my strong objections). The idea was so…

0 Comments

Posted in
- Lifestyle

D’Wave Cabana at Wild Wild Wet

Posted byby Jason Chee
August 17, 2022
3 minute read

There is amazingly not a single image or description of the premium “D’Wave” Cabana over at Wild Wild Wet. Even the official website has no media of it. When I…

0 Comments

Posted in
- Law and Order

Enforcing a Claim under the Small Claims Tribunal

Posted byby Jason Chee
May 16, 2022
7 minute read

In November of 2019, a friend of mine (the “claimant”) was seeking legal remedies after being cheated of his rental deposit by a HDB flat owner (the “landlord”). After two…

5 Comments

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- Cybersecurity
- Public Policy

Mitigating Banking Scams in Singapore

Posted byby Jason Chee
January 18, 2022
6 minute read

How often do people perform banking activities, or use the banking apps? Seldom enough to warrant some extra protections and caution around banking. Most people store their money in a…

0 Comments

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- Next Next Done

Resizing Out-of-Space Linux OS Disk on Microsoft Azure

Posted byby Jason Chee
December 6, 2021
2 minute read

Some weeks ago I awoke to one of my websites dead. A week before, I had upgraded the Virtual Machine’s MySQL from 5.6 to 8. More on that later. When…

0 Comments

Posted in
- Cybersecurity

NUS Greyhats WelcomeCTF 2021: Writeup

Posted byby Jason Chee
August 19, 2021
23 minute read

The National University of Singapore (NUS)’ Greyhats organized a WelcomeCTF from 13 to 15 August 2021. Interestingly, this CTF was sponsored by DSTA, who ran the ill-fated CDDC2021 just 2…

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Posted in
- Cybersecurity

Phreaking with Class0 and MWI in 2021

Posted byby Jason Chee
August 2, 2021
6 minute read

Couldn’t think of a nice title. There used to be this thing I used to do back in 2007-2010, which was sending Class0 and Message Waiting Indicator (MWI) messages to…

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Posted in
- Cybersecurity

How NOT To Run A Capture-The-Flag: CDDC2021

Posted byby Jason Chee
July 31, 2021
8 minute read

Over the school holidays, DSTA (Defence Science & Technology Agency, Singapore), a statutory board of the Singapore Government, ran BrainHack 2021 from 10 May to 25 June 2021. Part of…

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Posted in
- Cybersecurity

Decrypting AES-128 Encrypted HTTP Live Streaming

Posted byby Jason Chee
July 20, 2021
3 minute read

I came across an interestingly encrypted HLS m3u8 playlist the other day. This was on a site that you could only access once – after which, you lose access to…

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