Informations about SSL certificates and networks security
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My personal definition of a brilliant idea is one that is immediately obvious once it’s explained, but no one has thought of it before. I can’t believe that no one has described this taxonomy of access control before Ittay Eyal laid it out in this paper. The paper is about cryptocurrency wallet design, but the … Read More “A Taxonomy of Access Control” »
Honda vehicles from 2021 to 2022 are vulnerable to this attack: On Thursday, a security researcher who goes by Kevin2600 published a technical report and videos on a vulnerability that he claims allows anyone armed with a simple hardware device to steal the code to unlock Honda vehicles. Kevin2600, who works for cybersecurity firm Star-V … Read More “Security Vulnerabilities in Honda’s Keyless Entry System” »
Hertzbleed is a new side-channel attack that works against a variety of microprocressors. Deducing cryptographic keys by analyzing power consumption has long been an attack, but it’s not generally viable because measuring power consumption is often hard. This new attack measures power consumption by measuring time, making it easier to exploit. The team discovered that … Read More “Hertzbleed: A New Side-Channel Attack” »
Hartzbleed is a new side-channel attack that works against a variety of microprocressors. Deducing cryptographic keys by analyzing power consumption has long been an attack, but it’s not generally viable because measuring power consumption is often hard. This new attack measures power consumption by measuring time, making it easier to exploit. The team discovered that … Read More “Hartzbleed: A New Side-Channel Attack” »
Basically, the SafeZone library doesn’t sufficiently randomize the two prime numbers it used to generate RSA keys. They’re too close to each other, which makes them vulnerable to recovery. There aren’t many weak keys out there, but there are some: So far, Böck has identified only a handful of keys in the wild that are … Read More “Breaking RSA through Insufficiently Random Primes” »
It’s not yet very accurate or practical, but under ideal conditions it is possible to figure out the shape of a house key by listening to it being used. Listen to Your Key: Towards Acoustics-based Physical Key Inference Abstract: Physical locks are one of the most prevalent mechanisms for securing objects such as doors. While … Read More “Determining Key Shape from Sound” »
DiceKeys is a physical mechanism for creating and storing a 192-bit key. The idea is that you roll a special set of twenty-five dice, put them into a plastic jig, and then use an app to convert those dice into a key. You can then use that key for a variety of purposes, and regenerate … Read More “DiceKeys” »
Researchers are using recordings of keys being used in locks to create copies. Once they have a key-insertion audio file, SpiKey’s inference software gets to work filtering the signal to reveal the strong, metallic clicks as key ridges hit the lock’s pins [and you can hear those filtered clicks online here]. These clicks are vital … Read More “Copying a Key by Listening to It in Action” »
South Africa’s Postbank experienced a catastrophic security failure. The bank’s master PIN key was stolen, forcing it to cancel and replace 12 million bank cards. The breach resulted from the printing of the bank’s encrypted master key in plain, unencrypted digital language at the Postbank’s old data centre in the Pretoria city centre. According to … Read More “Bank Card “Master Key” Stolen” »
Remember Spectre and Meltdown? Back in early 2018, I wrote: Spectre and Meltdown are pretty catastrophic vulnerabilities, but they only affect the confidentiality of data. Now that they — and the research into the Intel ME vulnerability — have shown researchers where to look, more is coming — and what they’ll find will be worse … Read More “Another Intel Speculative Execution Vulnerability” »