Yehonatan Cohen Scaly γπ¦γ
@ycscaly
Followers
1K
Following
11K
Media
2
Statuses
223
CTO @dWalletLabs Co-Founder of @ikadotxyz bringing noncollusive massively decentralized dWallets to Web3
Joined July 2022
Technical overview of 2pc-mpc. This should be accessible without much technical background as I'm building everything from scratch.
5
5
46
Add superior arithmetic performance & small encoding, and it seems like you have the perfect scheme for many use-cases, particularly those that require precision, low-latency, and operate on a single user-input. Web3 privacy and MPC use-cases are inevitable.
10/12. With 100x smaller ciphertexts, 20x faster multiplication, and 1000x faster additions, REFHE surpasses TFHE in every parameter.Benchmarks in the paper.
0
0
3
When we found out we can work with powers-of-two plaintext spaces using REFHE, the first thing that came to mind was: wait so we can work with 2^64 machine words?. Youβre saying that we have an FHE scheme that behaves like *encrypted CPU registers*???.
π§΅1/12.We're excited to share REFHE: Fully Homomorphic ALU, our new paper introducing an FHE scheme that natively supports both arithmetic and logical operations on 64-bit machine words. This is a step toward treating FHE not as a circuit model - but as a real compute model.
19
11
66
Passkey + Ikaβs dWallet = Face ID controlled BTC.
Passkey is now LIVE on Sui mainnet. Passkey enables fast, secure login with Face ID, Touch ID, or a Yubikey. That's right β no seed phrases, no passwords. Builders, you can start integrating passkey into your Sui app today. Here's how and why this changes everything π
27
17
95
RT @lakshaysuiiiiii: 𧡠1/ Your Bitcoin is Lazy. Hereβs How to Make It Work for You. Spoiler: You're about to learn how to make your βlaβ¦.
0
14
0
Web3 wallets should be human-usable, and secure. People should feel safe using them. Iβm a CTO of an infra web3 project and Iβm scared to death from human errors when I transact. So how do end-users feel?.This must change. Ika allows builders for wallets like Human to do it.
𧡠1/ Blind Signing is Draining Crypto Wallets. Hereβs How Human Wallet Ends It. Every day, people lose their NFTs, tokens, or entire portfolios. Not because theyβre careless β.But because their wallet asks them to sign this:. 0xa3d21581b. 41fF472e2 π. Spoiler: Thatβs not
2
4
24
Really cool usecase.
𧡠What happens to your crypto when you die?. Spoiler: Itβs probably gone forever. But one chain solves thisβ¦. Sui π. Hereβs how π
2
2
23
0
98
0
2pc-mpc live on Ika & Sui mainnet. A good time to celebrate the best cryptography team in the world β€οΈ.
As a cryptographer: Ika is a masterpiece.- the 1st sub-second MPC committee with hundreds of nodes.- sound and unique cryptography.- one account and you control addresses across many chains, all from a Sui smart contract.- IMHO one of the coolest and novel ideas that will advance.
18
5
57
Three years of hard work converge into one sub-second signature.
one of our cryptographers put it beautifully after we witnessed the first @ikadotxyz signature coordinated on @SuiNetwork mainnet:. "over three years of work culminating in less than one second". sub-second signatures are coming.
12
9
70
Exciting milestone.
we just airdropped 600m ika tokens to the @ikadotxyz community. no airdrop will ever be perfect, but we have made great efforts to make sure sybil actors and malicious players will not benefit from this airdrop. two huge thank yous are owed here:. 1. we worked with @theordersui.
6
1
39
So the author of Caith Sith found that identifiable abort (IA) is very hard to achieve in practice and details the various reasons for it (. All true! it is difficult in practice and IA papers like GG20 underspecify the implementation, so does ours - its.
it's another long and technical post, BUT i'll be running a meme-off competition with prizes in the comments - more details at the end of the post. you're not sure about 20% bft? how does 0% sound?. now that we've discussed reducing the byzantine fault tolerance (bft) from 33%
23
16
70
I guess this is the most useless quote ever, for if youβre seeing this post you already followed me!
Not following @ycscaly with notifs ON?! (ｑβ’ΜοΈΏβ’Μｑ). Are you even a real Ika-chan simp? That's like saying you love me but skip the tentacle episodes!. *angry squid noises* π¦π’. Turn on notifications or you're worse than people who prefer watching the dubs. Not my Onii-chan.
31
9
89
When I first learned about crypto, I watched a lot of @RealVision and in one of their videos @RaoulGMI talked about how the visions of Bitcoin and Defi are compatible, we just need to use Bitcoin as the collateral. I loved that idea. It took us three long years, but we finally.
I've mapped out Bitcoin ecosystem in the trust + decentralization spectrum. @goNativeCC stands out thanks to @ikadotxyz and @SuiNetwork. See the attached article to learn more about Trust Models in blockchain architecture.
129
23
138
Excited to have @SuiNetwork on board!.
breaking: $21M+ total funding achieved. sui foundation joins ika's strategic backers.sub-second mpc network launching on @SuiNetwork . coordination was inevitable π¦.
2
5
26
7/ And just like that, threshold FHE is solved β
.
0
2
14
6/ After decrypting it, the output can be restored and efficiently verified. This optimisation circumvents the need to verify the correctness of the decryption shares and combining the shares locally.
1
3
11
5/ By computing, during DKG, the corresponding AHE encryptions of the key-switching key noise, one can derive a corresponding encryption of the ciphertext's noise.
1
0
3
4/ How can we decrypt a FHE ciphertext using an AHE encryption scheme?. Essentially, by applying a key-switch, we get a ciphertext encrypting the same output value, yet its encryption noise only depends on the key-switching public parameters.
1
0
4