#Cryptography

IncognitimIncognitim
2025-05-04

Legend.
"My personal opinion is that the world would have been better without cryptocurrencies,"
"Everything is highly centralized in a small number of very large exchanges. No one is using it in order to make payments; people are using it once in order to speculate,"
"Cryptocurrencies are what enabled all the malware. It would have been very difficult to extract so much money from companies if there were no cryptocurrencies."
theregister.com/2025/04/29/cry

Tommaso Gagliardonitomgag@infosec.exchange
2025-05-03

I have been thinking for a while about the issue of anonymity in Web3 (and, more in general, anonymous transactions). The growing realization of the damage caused by decentralized financial technologies is nagging my cypherpunk self, who has been at war for a lifetime against invasive tracking, manipulative marketing, and surveillance capitalism. I collected my thoughts here: gagliardoni.net/#20250427_priv

Spoiler alert: I'm not endorsing backdoors, but I think some middleground solution must be found.

#horizenlabs #crypto #cryptography #privacy #compliance #aml #kyc #anonymity #web3 #gnutaler #bitcoin #monero #zcash #tornadocash

2025-05-03

1 cent per five years .... is the current marginal hosting cost for a #chatmail address, with which #deltachat apps facilitate world-wide private messaging including interactive #webxdc apps that run end-to-end encrypted in any chat group.

<1 Million EUR per year is the estimated marginal hosting costs for 350 Million EU citizens. Such scaling requires, however, research and development, including careful UX and #cryptography work. Related writing from @gordon

newsletter.squishy.computer/p/

screenshot of key excerpt from the referenced post:

"When the network is built on cryptographic protocols, we don’t have to trust anything in-between. We don’t have to trust the computers, the wires, the institutions, beliefs, or kinship of the network participants. We can trust the math. All we have to do is verify the message with cryptography.

This is a powerful primitive for scaling trust, because it means everyone on the network can cooperate together, even if they don’t trust each-other. The costs to producing high-trust results are greatly reduced, and we can spend our coordination efforts on building larger, more fine-grained, more complex networks of cooperation."
2025-05-03

Back when i studied #cryptography in the 1990ties, my wonderful professor gave an intro lecture and one of his first points was: "Security" by itself does not exist. You have to state the property you want to secure, and describe the attack model. Moreover, claiming #security as a generic absolute feature marks someone who does not really know what they are talking about. Can't get rid of remembering this lecture ;)

icepflicepfl
2025-05-03

Professor Thomas Vidick joined EPFL in late 2024. He works on problems at the interface of quantum information, theoretical computer science and cryptography.

kriware :verified:kriware@infosec.exchange
2025-05-03

AES & ChaCha — A Case for Simplicity in Cryptography

Compares AES and ChaCha20, highlighting ChaCha20's simplicity, speed, and resistance to side-channel attacks over AES's complexity.

phase.dev/blog/chacha-and-aes-

#Cryptography #ChaCha20

2025-05-02

Created github.com/haraldh/memo128

A Rust library and CLI tool for encoding 128-bit numbers as memorable natural language sentences.

An idea, I had a couple of years ago. Somehow I remembered it and was able to implement it with the help of several AIs basically in a day.

#rust #crypto #cryptography

Schneier on Security RSSSchneier_rss@burn.capital
2025-05-02

NCSC Guidance on “Advanced Cryptography”

The UK’s National Cyber Security Centre just released its white paper on “Advanced Cryptography,” which it defines as “cryptographic techniques for proc... schneier.com/blog/archives/202

#homomorphicencryption #Uncategorized #cryptography #reports

ByteSectorXbytesectorx
2025-05-02

🔐 How could quantum computers disrupt the world of cryptography? Discover the potential risks and challenges in our latest article.

Read more: bytesectorx.blogspot.com/2024/

Assn for Computing MachineryACM@mastodon.acm.org
2025-05-01

🏆 Hugo Krawczyk – ACM Paris Kanellakis Theory and Practice Award
For pioneering and lasting contributions to the theoretical foundations of cryptographically secure communications, and to the protocols that form the security foundations of the Internet.
🔗 bit.ly/4jBJjHX

👏 Congratulations to all the awardees shaping the future of computing!

#ACMTechnicalAwards #Cryptography #ParallelComputing #ComputerScience

2025-05-01

@fasnix

Zurzeit gibt es, nach meinem heutigen Kenntnisstand, drei wichtige #Meshnetzwerke. Zunächst das allseits bekannte #Meshtastic, dann #Reticulum und auch #MeshCore.

Während sich Reticulum hauptsächlich als #Cryptography basierten Netzwerk-Stack sieht, das auch (!) LoRa kann, so tritt MeshCore eher in die Fußstapfen von Meshtastic, vermeidet dabei aber die Konzeptfehler, die gleich zu Anfang bei Meshtastic entstanden sind. Damals konnte ja noch kein Entwickler ahnen, welchen Zulauf und welche Größe MT erreichen wird.

Bei MC wird deshalb von vornherein auf viele Dinge verzichtet, die zwar "nett" sind, aber das Netz belasten und nicht wirklich nötig sind.

Dazu zählt, dass nicht jeder Node auch gleich ein "Repeater" ist, ständig Telemetriedaten über das Mesh geschickt werden und vieles mehr.

Es werden also wesentlich (!) weniger Daten durch das Netz "gequetscht". MeshCore ist jetzt seit rund vier Monaten online, aber ein absoluter "Senkrechtstarter". In London sind bereits mehr als 100 Nodes online und insgesamt schon mehr als 1.100 Nodes.

Aktuelle Infos und die Möglichkeit zum Austausch zu allen dreien findest du hier:

matrix.to/#/#mesh-netzwerke-de

#Notfallkommunikatio #Mesh #WAN #LoRa

@bjoern

2025-04-30

@bart explains the difference between quantum computers and current digital computers and how we're ready with a new cryptography algorithm when quantum computing becomes a reality. This episode originally aired as part of Security Bits on the NosillaCast, but we wanted a standalone version you could send to your friends.

podfeet.com/blog/2025/04/ccatp

#Cryptography #QuantumComputing

2025-04-30

Chinese 🇨🇳 authorities have accused US 🇺🇸 intelligence services of hacking a major Chinese #cryptography provider

The hack allegedly took place between March and September last year

US hackers allegedly exploited a zero-day in the company's CRM app to deploy backdoors and steal data. Stolen data included source code, customer data, and order details
globaltimes.cn/page/202504/133

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