Category: PGP and Cryptography

04.04.2020

https://theintercept.com/2020/04/03/zooms-encryption-is-not-suited-for-secrets-and-has-surprising-links-to-china-researchers-discover/ hm…. let me think where one has seen this before: TELEGRAM! Zoom’s service is “not suited for secrets” “The researchers also found that Zoom protects video and audio content using a home-grown encryption scheme, that there is a vulnerability […]

Russian IT Security Updates 2020-01
13.01.2020

now WITH SPICY COMMENTS X-D SecurityLab, [22.12.19 12:40] A Twitter user using the alias 08Tc3wBB created tfp0-an exploit that allows you to jailbreak the latest iPhone models with IOS 13.3. The functionality of the exploit has already been confirmed by […]

how to verify Debian ISO Image – BAD signature – how to sign a file – chain of trust – the problem with short key IDs
17.03.2018

make sure you downloaded the SHA512SUMS.sign from the same directory as the iso. https://keyring.debian.org/ https://www.debian.org/CD/verify https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/9.4.0+nonfree/amd64/iso-cd/ https://bits.debian.org/2016/08/debian-and-tor-services-available-as-onion-services.html otherwise you will get BAD signature. steps to reproduce: # download the iso image with non-free drivers (yes it sucks non-free drivers are […]

20.06.2017

AES is often used in conjunction with IPSec-VPNs. K.U. Leuven, Belgium; Microsoft Research Redmond, USA; ENS Paris and Chaire France Telecom, France Abstract. Since Rijndael was chosen as the Advanced Encryption Standard, improving upon 7-round attacks on the 128-bit key […]

gpg cheat sheed – encrypting files with gpg
08.06.2017

Warning! while gpg is very likely sound and solid encryption – what is far more likely to be compromised is YOUR HARDWARE – every network card – wifi card – usb UMTS G3 modem – PCI-Card – contains enough RAM […]

22.01.2015

update: Bitcoin Gold hacked – 18 Million USD stolen https://www.heise.de/newsticker/meldung/Ende-der-Grafikkarten-Aera-8000-ASIC-Miner-fuer-Zcash-Bitcoin-Gold-Co-4091821.html https://www.heise.de/ct/ausgabe/2018-14-Wie-51-Prozent-Angriffe-Bitcoin-Co-bedrohen-4085333.html   Elliptische Kurven: hm… hatte ich nie viel zu tun mit. Ist aber die Basis von ECDSA welcher verwendet wird um die echtheit von Bitcoin-“Überweisungen” zu verifizieren. Schlüsselpare: Es […]

GNU Debian Linux – howto Send encrypted E-Mail with Thunderbird and Enigmail and PGP in 5 Minutes (including backup and restore keypair) – your secret key has missing trust
27.01.2014

Update: 2020-10 apt-listchanges: News ——————— thunderbird (1:78.3.1-1) unstable; urgency=medium The Thunderbird ESR series starting with version 78.x has finally dropped the support for legacy Add-ons and also for legacy WebExtension Add-ons. By this some packaged Add-ons within Debian, but also […]