gf_256 - Network

you compile your kernel in the cloud.i compile kernel in…

you compile your kernel in the cloud.
i compile kernel in…

Code: github.com/stong/tldw/

Code: github.com/stong/tldw/

Many YouTube videos lately are clickbait and stretch out a Wikipedia page into 30 minutes. Many videos are just questions with simple...

Many YouTube videos lately are clickbait and stretch out a Wikipedia page into 30 minutes. Many videos are just questions with simple answers.

So I built tldw.tube: put in the URL and save your time!

(No hate on Veritasium, it just happened to work well for the screenshot)

Hello from 38C3!

Hello from 38C3!

My videos for Flare-On 2024 are live! Watch me reverse engineer all the challenges from start to end. 🎉🥳+ Commentary video featuring...

My videos for Flare-On 2024 are live! Watch me reverse engineer all the challenges from start to end. 🎉🥳

+ Commentary video featuring SuperFashi, where we review the chals together.

* 45 hours of content
* 400+ GB of raw footage

Merry Christmas! Link: https://www.youtube.com/watch?v=vwW9xvr3TcI&list=PLYP-7_bD0kQEJ51srPqQY7QUc2VNYN8uN&index=1

typical friday night

typical friday night

Fun friday night coding project: UBSAN but for Javait works as a javaagent, instrumenting all loaded classes at the bytecode level. it lifts...

Fun friday night coding project: UBSAN but for Java

it works as a javaagent, instrumenting all loaded classes at the bytecode level. it lifts the bytecode to SSA IR, replaces BinOp nodes for arithmetic with a function call to a checked version of the op, then recompile bytecode

terminal brainworm

terminal brainworm

Lastly, thank you to @whitequark for her helpful feedback and advice about Yosys and the sections regarding hardware and logic synthesis!

Lastly, thank you to @whitequark for her helpful feedback and advice about Yosys and the sections regarding hardware and logic synthesis!

To see all the details on how oblivious transfer and garbled circuits work, I've written a full blog post on MPC from scratch.Check it...

To see all the details on how oblivious transfer and garbled circuits work, I've written a full blog post on MPC from scratch.

Check it out! 👇
https://www.zellic.io/blog/mpc-from-scratch/

The MPC protocol we'll be building is Yao's Garbled Circuit protocol.The idea behind garbled circuits is to encode the computation...

The MPC protocol we'll be building is Yao's Garbled Circuit protocol.

The idea behind garbled circuits is to encode the computation into a boolean circuit made of logic gates, then evaluate each of the logic gates in a MPC-like way.

To do this, we'll first need a primitive known as Oblivious Transfer. OT is MPC-complete, meaning it can be used to accomplish any MPC! But what is oblivious transfer?

Imagine I have two messages. I want to let you pick one of the messages, without seeing the other one. You also don't want to reveal which one you picked. Oblivious transfer accomplishes this.

For example, MPC can be used to jointly encrypt a message with AES, with the key split up among many different parties.But what's the...

For example, MPC can be used to jointly encrypt a message with AES, with the key split up among many different parties.

But what's the difference versus key splitting, like Shamir's Secret Sharing?

In secret sharing, the key has to get reassembled. At some point, some trusted party is going to have the entire key available to them. Trusted party could get compromised.

With MPC, the whole operation is done in MPC, meaning there's no point where the combined key could be extracted.

MPC, or multi-party computation, is about how multiple parties can do shared computations on private inputs without revealing those private...

MPC, or multi-party computation, is about how multiple parties can do shared computations on private inputs without revealing those private inputs.

Suppose you and your friend want to compare who's richer, but without revealing your net worths.

MPC allows us to accomplish this, by computing the function (x > y), where x and y are private inputs.

In general, MPC can be used to build all kinds of useful protocols, like threshold cryptography, dark pools, and private auctions (for sugar beets)!

In 2008, the Danish government used cutting-edge cryptography to auction 25,000 tons of beets.The auction was needed to set the price of...

In 2008, the Danish government used cutting-edge cryptography to auction 25,000 tons of beets.

The auction was needed to set the price of sugar beets. However, the farmers didn't want to show their hand. Rather than hire expensive consultants, they used MPC to implement this private auction.

But what's MPC, and how does it work? Let's build a MPC implementation from scratch. Here's how:

horseshoe theory is just projective geometry ok?

horseshoe theory is just projective geometry ok?

I will say the auto delete post feature is great too since it encourages people to share their thoughts more openly. I still think...

I will say the auto delete post feature is great too since it encourages people to share their thoughts more openly. I still think that's kind of a false sense of security though because nothing stopping your toots from getting archived or indexed by a crawler

lets fucking gooooooo

lets fucking gooooooo