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  1. Page 1: Today’s IndexTLDR, TLDR AI, TLDR Web Dev, TLDR InfoSec, TLDR Crypto · 9 stories
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  3. Page 3: TLDR AITLDR AI · 11 stories
  4. Page 4: TLDR Web DevTLDR Web Dev · 5 stories
  5. Page 5: TLDR InfoSecTLDR InfoSec · 13 stories
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Daily Edition · Page 1

THE DAILY INDEX

Technology, AI, software, security, crypto and business

Across today’s newsletters

Today’s Index

TLDR

APPEALS COURT UPHOLDS U.S. BAN OF TIKTOK

A federal appeals court has ruled that TikTok can be banned in the US over national security concerns. The ruling rejected arguments that the ban was an unconstitutional infringement on free speech. The ban was intended solely to limit a foreign nation's ability to gather data on people in the US. TikTok claims US security fears are speculative and overblown. It is expected to appeal to the Supreme Court, but the justices are not obliged to hear the case.

links.tldrnewsletter.com · 8 min

TLDR Web Dev

WRITING DOWN (AND SEARCHING THROUGH) EVERY UUID

The website everyuuid.com displays all possible UUID v4s, which was a challenge because of the sheer number of them (2^122). To overcome browser rendering limitations, the creator implemented a virtual scrolling system that handled rendering and scrolling manually. Generating and displaying the UUIDs in a seemingly random yet consistent order required a custom algorithm that used a Feistel cipher to achieve a bijective mapping for scrambling (so that each UUID appeared exactly once). The creator added a search function which, while not perfectly efficient, allows users to find UUIDs containing specific substrings.

eieio.games · 19 min

TLDR InfoSec

SOLANA WEB3.JS LIBRARY BACKDOORED TO STEAL PRIVATE KEYS

The Solana web3.js SDK was backdoored by a malicious commit for roughly 5 hours on December 2. The backdoor was hidden in a new addToQueue function which sent the user's private key in seemingly benign headers to an attacker-controlled server. Calls to the function were then placed in strategic locations in the key generation and loading process. The developers urge any developers who think they might have been compromised to rotate their keys.

bleepingcomputer.com · 3 min

TLDR

APPLE 'INVESTIGATING' MACS WITH CELLULAR CONNECTIVITY

Apple is investigating the possibility of adding a modern chip to a future Mac, but a cellular Mac isn't likely to launch until 2026 or later. The company plans to introduce its custom-built 5G chip early in 2025. It will be added to the iPhone SE, low-cost iPad, and iPhone 17 Air. The chip will be expanded to other iPhones and iPads over a three-year period. The first-generation chip will be limited to sub-6GHz 5G speeds, but the second-generation version will support faster mmWave technology.

macrumors.com · 2 min

TLDR

LOWER-COST SODIUM-ION BATTERIES ARE FINALLY HAVING THEIR MOMENT

CATL, the world's largest battery manufacturer, has announced its second-generation sodium-ion battery, which has an energy density of 200 watt-hours per kilogram. The company plans to start mass production of the battery in 2027. Sodium-ion batteries perform better than lithium-ion batteries in extreme cold and they carry a much lower risk of fire. The process for manufacturing sodium-ion batteries is similar to that of lithium-ion batteries, so existing assembly lines can be reused without having to spend heavily on retooling. Their biggest disadvantage is low energy density, but they have the potential to be cost-competitive with lithium-ion batteries.

arstechnica.com · 5 min

TLDR

INTEL LOOKS BEYOND SILICON, OUTLINES BREAKTHROUGHS IN ATOMICALLY-THIN 2D TRANSISTORS, CHIP PACKAGING, AND INTERCONNECTS AT IEDM 2024

Intel's Foundry Technology Research team has announced technology breakthroughs in 2D transistor technology. It plans to unveil its research at the IEEE International Electron Devices Meeting 2024 conference. The research includes enhancements in gate-all-around transistor scaling and performance both with silicon and with atomically-thin 2D transistors that use beyond-silicon materials. It also outlines Intel's subtractive Ruthenium technology, which improves interconnect performance and scalability, ultimately enabling smaller wires between transistors, and a chip packaging breakthrough that improves chip-to-chip assembly throughput by 100x.

tomshardware.com · 6 min

TLDR IndexPage 1