Archive | Cryptography




Wycheproof – Test Crypto Libraries Against Known Attacks

Project Wycheproof is a tool to test crypto libraries against known attacks. It is developed and maintained by members of Google Security Team, but it is not an official Google product. At Google, they rely on many third party cryptographic software libraries. Unfortunately, in cryptography, subtle mistakes can have catastrophic consequences, and they found that […]

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sslscan – Detect SSL Versions & Cipher Suites (Including TLS)

sslscan is a very efficient C program that allows you to detect SSL versions & cipher suites (including TLS) and also checks for vulnerabilities like Heartbleed and POODLE. A useful tool to keep around after you’ve set-up a server to check the SSL configuration is robust. Especially if you’re in an Internet limited environment and […]

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UK Encryption Backdoor Law Passed Via Investigatory Powers Act

The latest news out of my homeland is not good, the UK encryption backdoor law passed via Investigatory Powers Act or the IPA Bill as it’s commonly known. And itself was passed through a kind of backdoor route, which avoided the scorn of the public. Which was good for the lawmakers, but not for the […]

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Signal Messaging App Formal Audit Results Are Good

I’ve recommended Signal Messaging App quite a few times and I do use it myself, I know there are some privacy concerns with the fact it requires Google App Store – but that’s the developers choice. It’s a pretty solid app, clean, sleek and works well across both Android and iOS and the latest news […]

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SHA-256 and SHA3-256 Are Safe For the Foreseeable Future

Hashing, it’s always a contentious issue – used to be md5, then sha-1, then bcrypt and now it looks like SHA-256 or SHA3-256 might the future with quantum science boffins predicting it’s not feasable to crack. You can read more about the algorithm and design (using sponge construction) on Wikipedia here: SHA-3 While it’s reasonable […]

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Up1 – Client Side Encrypted Image Host

Up1 is a client side encrypted image host that that can also encrypt text, and other data, and then store them, with the server knowing nothing about the contents. It has the ability to view images, text with syntax highlighting, short videos, and arbitrary binaries as downloadables. How it Works Before an image is uploaded, […]

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PEiD – Detect PE Packers, Cryptors & Compilers

PEiD is an intuitive application that relies on its user-friendly interface to detect PE packers, cryptors and compilers found in executable files – its detection rate is higher than that of other similar tools since the app packs more than 600 different signatures in PE files. PEiD comes with three different scanning methods, each suitable […]

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DROWN Attack on TLS – Everything You Need To Know

So SSL in general is having a rough time lately, now with the SSLv2 DROWN attack on TLS. And this is not long after Logjam and a while since Heartbleed, POODLE and FREAK. DROWN is a cross-protocol attack that can decrypt passively collected TLS sessions from up-to-date clients and stands for Decrypting RSA with Obsolete […]

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Dell Backdoor Root Cert – What You Need To Know

So a few days ago the Internet exploded with chatter about a Dell backdoor root cert AKA a rogue root CA, almost exactly like what happened with Lenovo and Superfish. It started with this Reddit thread – Dell ships laptops with rogue root CA, exactly like what happened with Lenovo and Superfish in the Technology […]

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ISIS Running 24-Hour Terrorist Crypto Help-desk

There have been multiple mentioned of ISIS using encryption and ‘encrypted messaging systems’ in the news reports since the Paris incident, it turns out they mostly mean Telegram. Which we’ve only mentioned once before, when they got pounded by an epic DDoS attack. Now it turns out, ISIS has a whole help desk infrastructure set-up […]

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