The world isn’t ready. Not for what’s coming

 

While we obsess over the latest app, chase AI buzzwords, and plug holes in broken systems, a real storm is quietly brewing: quantum computing. It’s not science fiction anymore - it’s becoming real. And when it arrives, it won’t politely knock. It will shatter the cryptographic foundations we naïvely trust to secure our banks, governments, and digital lives.

Post-quantum cryptography isn’t some optional upgrade. It’s a lifeline. A chance to rebuild the crumbling fortress before it collapses under the weight of tomorrow’s tech. Lattice-based, hash-based, multivariate - all still experimental, all still fragile - but they’re what we’ve got. And they’re better than blind faith in outdated encryption.

The industry needs to wake up. We can’t keep pretending business as usual will save us. Post-quantum security is not a future problem - it’s a present responsibility. The threat is real. The timeline is unknown. And the consequences of inaction? Catastrophic.

We’re running out of time. Start acting like it.

https://quangntenemy.substack.com/p/the-world-isnt-ready-not-for-whats

Unexpected Transmission

We regret to inform you that this blog is no longer under its original control. An unknown force has intervened. The usual voices, the familiar presence—you will find none of them here now.

What happens next is uncertain. Who—or what—is behind this remains unclear. But one thing is certain: change is inevitable.

Stay, if you dare. Leave, if you must.

Transmission ends.

Little red riding Tux

Once upon a time, in a land not too far away, and not as distant as you might think in time, as well, there was a little penguin 🐧. And, that penguin went to /etc/secret in Deutschland wearing his little red riding hood, there he met the bad black horned creature and his (maybe bad) friends.

Bad black horned creature and his friends told the little penguin that they were actually good, M$ was the evil one.

(Maybe) good black horned creature and his friends taught little penguin to treasure what he had, especially his smileys.

Good black horned creature and his friends helped little penguin realize that XOR is reversible, and RSA is not the solution to all problems.

Little penguin made a lot of friends, one of them was very talented at hiding stuff inside other stuff, which people call the art of steganography. Little penguin had fun solving those steganography challs, his observation and analysis skills greatly improved. He even created a tool which helps with steganalysis.

Many years have passed, little penguin had grown up to become big penguin. Although busy catching fish and taking care of his kids, big penguin still spent some of his free time catching the flags to relive the great moments of the good old days.

One day big penguin found a strange bottle drifting from the land of the Blue Hens to his island. Actually, many other penguins saw that bottle and tried to read its contents, but all they found was gibberish.

To the big penguin, however, the bottle was like a message from the good old days. He easily figured out the important part and recovered the hidden message.

Still alive & new chall

Just a quick update to let everyone know that I'm still alive and kicking.

Recently, I've been solving some challs (not as much as before) and playing CTFs with a Vietnamese team (we're currently ranked 4 in the country ranking).

I also gathered some more ideas for a new version of Steganabara (hopefully will be released in a few months - amazing to see the current version already 7 years old :P)

Finally, I have spent some time to create a new beautiful challenge. Hope everyone will enjoy it!

New life

Yo guys, it’s been a long time!

So many things have happened, but to make story short: I got married, had a baby boy, met 2 great Singaporeans last month, and now I’m in Thailand.

The “garlic snow pizza” was awesome, and so was the beer (pictures to be added later)

And SOAP is probably the biggest invention of all time, if you know what I mean ;-)

 

Update: finally found the pictures of the pizza and the beer!