This isn’t good : On Thursday, researchers from security firm Binarly revealed that Secure Boot is completely compromised on more than 200 device models sold by Acer, Dell, Gigabyte, Intel, and Supermicro. The cause: a cryptographic key underpinning Secure Boot on those models that was compromised in 2022. In …
Interesting summary of various ways to derive the public key from digitally signed files. Normally, with a signature scheme, you have the public key and want to know whether a given signature is valid. But what if we instead have a message and a signature, assume the signature is …
Many customers building applications on Amazon Web Services (AWS) use Stripe global payment services to help get their product out faster and grow revenue, especially in the internet economy. It’s critical for customers to securely and properly handle the credentials used to authenticate with Stripe services. Much like …
Soon we will be able to unlock and start our cars from our phones. Let’s hope people are thinking about security. [...]
The cryptocurrency fintech startup Prime Trust lost the encryption key to its hardware wallet—and the recovery key—and therefore $38.9 million. It is now in bankruptcy. I can’t understand why anyone thinks these technologies are a good idea. [...]
Cryptographic flaws still matter. Here’s a flaw in the random-number generator used to create private keys. The seed has only 32 bits of entropy. Seems like this flaw is being exploited in the wild. [...]
A bunch of networks, including US Government networks, have been hacked by the Chinese. The hackers used forged authentication tokens to access user email, using a stolen Microsoft Azure account consumer signing key. Congress wants answers. The phrase “ negligent security practices ” is being tossed about—and with good reason …
A bunch of Android OEM signing keys have been leaked or stolen, and they are actively being used to sign malware. Łukasz Siewierski, a member of Google’s Android Security Team, has a post on the Android Partner Vulnerability Initiative (AVPI) issue tracker detailing leaked platform certificate keys that …
Nice work : Radio relay attacks are technically complicated to execute, but conceptually easy to understand: attackers simply extend the range of your existing key using what is essentially a high-tech walkie-talkie. One thief stands near you while you’re in the grocery store, intercepting your key’s transmitted signal …
This is a dumb crypto mistake I had not previously encountered: A developer says it was possible to run their own software on the car infotainment hardware after discovering the vehicle’s manufacturer had secured its system using keys that were not only publicly known but had been lifted …
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 Eyal Ittay laid it out in this paper. The …
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 …
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 …
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 …
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 …