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NFC Shortcut for Android 14+
I used to have a OnePlus phone, and it had an NFC toggle tile beside my wallet in the Quick Settings. It was a useful feature because I don’t like to have the NFC enabled all the time—a personal preference for some peace of mind. Stock Android OS doesn’t come with an NFC toggle in…
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Learning the length extension attack
Two weeks ago, I had this code challenge at work that I knew nothing about — Length extension attack. The goal was to generate a new MD5 hash based on an existing hash without knowing its secret. “WHAT?!” I know! It was a fun exercise! Here is my journey on figuring that out. In this…
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Hello World!
I used to have a blog at blog.harriswong.ca but I wiped my server and never bother backing up my posts. 😦 Here we go again, my first post! Hello world!
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