In the war for information, will quantum computers defeat cryptographers? | Craig Costello

In this glimpse into our technological future, cryptographer Craig Costello discusses the world-altering potential of quantum computers, which could shatter the limits set by today's machines -- and give code breakers a master key to the digital world. See how Costello and his fellow cryptographers are racing to reinvent encryption and secure the internet.

[superamario]

At last. A Ted talk where the mic has been setup correctly so we dont hear every single intake of breath or lip smack.
THANK YOU!
Great talk btw

[mod_cyber]

NOW THIS DEBATE IS GOING
TO ANOTHER LEVEL

[richardpreston]

I do research in quantum computing software. I feel like the situation is simultaneously more and less dire than this talk implies (no superposition joke intended). The point about encrypted data needing to be future-proof is very profound and underappreciated. On the other hand, quantum computing applies to a narrow set of problems; it's not the next generation of classical computers, it's something entirely new and different.


Also, I find the parallel universes thing to be an unfalsifiable theory (and therefore not very useful). It's fine for quantum physicists to offer speculative interpretations of experimental results, but these aren't really relevant to quantum computing and distract the non-technical audience.

[pip]

As an ex cryptographic technician, I can say that the probability factor of this being a reality, is closer than many would like to admit.

[globalvillage]

Imagine quantum morality: you can be good and evil simultaneously.

[treborironwolfe]

As someone with 25+ years of professional IT experience..
I am afraid. I am very afraid.
Perhaps quantum computing will loosen the cork and allow sentient artificial intelligence to escape from the bottle.

[Monkeyheadtpc]

All this argumentation is moot when you built backdoors in your "encrypted" systems.

[hmmmmchit]

12:07 can't understand this part. Canceling out means what, and amplifying means what? don't know if i'm guessing right. who understood this, please explain it more concretely... (with specific examples or cases)

[MrAykut]

I clicked on this vid with diff intentions & came across things that i already knew but he is such a great talker that i was like "tell me again", this is the way to do talks, he could probably talk about any topic in the same way

[shubhammaurya]

I am ML engineer and I am having a hard time to train my softwares. Sometimes it takes millions of Generation to do close to what it's intended for. Waiting for quantum computer!!!

[av]

Finally, we will be able to calculate the meaning of life :)

[jamesjulius]

It was so clear presentation. Not a single minute wastage.

[Mornys]

Best presentation I've seen on this subject. As clear as they come.

[paulh]

How do you contact Craig Costello directly. I'm interested in his knowledge and skills.

[doc]

we need the quantum computer to solve the incryption problem.

[tzlwin]

Why not use Quantum cryptography to make encryptions stronger?

[Sensimuse]

This talk hits pretty hard after the season finale of Silicon Valley.

[RichardBuckerCodes]

There are four very serious problems with this hypothesis. [1] the current machines appear to be models and not the actual machine and the machine is more like early 1960s computers that were bootstrapped with their task rather than modern time-sharing computers [2] writing quantum code is not trivial... if "we" had a computer with the horsepower to solve the problem x*y=some really big number then writing that code would be pretty simple by comparison [3] what is the actual cost per problem solved and how is that expressed over time (see #2); and [4] snake oil? how do you get from encryption to hunger? It's not like the same program used to decrypt KFC secret recipe can solve world hunger. Solving hunger would need a separate program.

People may always have secrets but encryption can be rendered meaningless by society.

PS: if this is a real thing then it should be a warning to crypto-currencies and their masters. You might make a profit now but the long term benefit may be catastrophic.

[herbatan]

As far as I am concerned, what Alan Touring actually did, was to include improvements to the pre-war Polish Cipher Bureau's bombe method, by building an electromechanical machine that could find settings for the Enigma machine significantly faster.
The movie was not a documentary.

[Rushmore]

Data encryption is only part of securing sensitive information. Restricting access to only properly authorized users in the first place is the gaping hole in the model, what with all the constant hacks of governmental, business, and personal systems. And the access restriction challenge is probably more daunting than the encryption challenge.