Jon Atack @[email protected]

I'm trying to solve a problem where we are given a pubkey in a pem file (I assumed RSA and can unserialise it as such, so I guess I'm right) and a ciphertext, and we are supposed to crack it. One hint: "very short crypto"
My best guess is that the d value is very low, and it seems that there's a Wiener's attack that exploit it.
I found this code, but it fails when I apply it to my problem https://sagi.io/2016/04/crypto-classics-wieners-rsa-attack/
Any distinguished cryptographer to have a guess at what I'm missing here?

Breaking encryption puts everyone at risk.

"Even the Defense Department is now pointing out that the government’s quest to weaken encryption lies somewhere between counterproductive and downright harmful." https://www.vice.com/en_us/article/akwwn5/the-defense-department-says-it-needs-the-encryption-the-fbi-wants-to-break

If you don't have the time to check out the Stephan Livera podcast w/ @jon on contributing to Bitcoin Core give the transcript a read. Was a great interview https://diyhpl.us/wiki/transcripts/stephan-livera-podcast/2019-11-13-jon-atack/

New way to help fund my #Bitcoin work, for the folks who are boycotting Patreon but would still prefer to contribute in fiat currency.

(GitHub also *doesn't* have Patreon's 10% fee, and will even match contributions for a while!)

https://github.com/users/luke-jr/sponsorship

@jon That makes perfect sense.
Buzzwords and technobabble lobbied at VC's that don't understand tech. Add famous autistic geniuses, the right packaging and you got investments.

https://bitcoinmagazine.com/articles/op-ed-want-to-learn-about-bitcoin-try-the-bitcoin-core-pr-review-club

RT @[email protected]

Bitcoin Optech newsletter #65 is here:

- requests feedback on not allowing P2SH-wrapped addresses for taproot
- describes proposed changes to script resource limits in tapscript
- mentions a discussion about watchtower storage costs

https://bitcoinops.org/en/newsletters/2019/09/25/

@Sosthene @jon Voskuil's arguments are silly IMO. He's arguing that encryption without authentication provides no value (because you can be MITM'd) but Schnelli's protocol makes it possible to detect MITM. Voskuil discounts this because he thinks nobody will attempt detection, but if even one person does, we have a more private protocol than we have today. Moreover, with encryption available, performing authentication too becomes much easier (e.g. no more need to use Tor for that).

Great session of Bitcoin #pr-review-club hosted by @jon today, besides the technical aspect (tbh honest I still feel a bit short on that) I have been particularly interested to hear Jonas Schnelli (is he here btw?) making his point about the benefits of P2P encryption, even if tbf I'm still not entirely convinced, Eric's arguments still looks quite strong to me. I still need some time to make my mind.

I set up a little bot that toot quotes from the Cypherpunks old mailing list : @Cypherpunks_mailinglist
I originally intended to make it tweet and toot at the same time, but when I created the @[email protected] account, it got locked up for "breaking the terms of use" in literally 30s. WTF? I barely created it, how could I break any rule?
And guess what? They demand a phone number to give it back to me 😂
So yeah, it will be Masto only 🖕

Opensource Lightning Network dashboard in R! (https://github.com/valerio-vaccaro/Lightning-dashboard) http://vaccaro.tech:3838/lightning/ #lightning #shiny #rstudio #DataScience #in #fb

It's a really interesting PR, proposing to mitigate the risk of eclipse attacks by separating block relay from transaction relay.

Starting in less than half an hour!

Today's Bitcoin Core Review club is on PR 15759 "Add 2 outbound blocks-only connections (p2p)".

Meeting is on IRC #bitcoin-core-pr-reviews channel at 1700 UTC.

Notes and questions are here:

https://bitcoin-core-review-club.github.io/15759.html

RT @[email protected]
Oh my. This is so awesome. Get temperature in Linux/Unix/macOS shell using curl command:

curl http://v2.wttr.in
curl http://v2.wttr.in/Mumbai
curl http://v2.wttr.in/London

I just call it Microsoft GitHub these days. Does half the job of communicating the risks of it being a hard dependency for FOSS projects in particular.

There is a repository of Signet related docker stuff at

https://github.com/kallewoof/signet-platform

It currently has a full node (based on my signet branch to bitcoin core), a faucet, and an explorer (based on esplora).

You can build yourself using docker, or just fetch from docker hub.

Street corner face-to-face 2-wallet coinjoin, anyone? Running the new UI through its paces. A few things to iron out and we're good. Here's a Stowaway as seen from the sending device. Make every spend a coinjoin. https://blockstream.info/testnet/tx/15969d2e596f51489f131aa43090b9dbf933f0661b7a81b780468fb3767e1360 #SamouraiWallet #Cahoots #Stowaway #PayJoin

The base ISA for RISC-V has been ratified, so there's a stability promise! https://riscv.org/2019/07/risc-v-foundation-announces-ratification-of-the-risc-v-base-isa-and-privileged-architecture-specifications/