-
Investigating a recent ebook DRM system (c. 2018)
Background
This post concerns a DRM system used in an online ebook platform, released circa 2018. Users of the platform can purchase ebooks and either view them online, or download them for offline viewing using a proprietary Android/iOS app.
As usual, the particular DRM system… »
-
Connecting Chromecast to hotel/enterprise WiFi with a spare laptop
The Google Chromecast does not support WiFi networks with captive portals (e.g. hotel WiFi) or WPA2-Enterprise/802.1X username/password authentication (e.g. eduroam or other enterprise entworks). This presents a problem when wired internet is not readily available and we do not want to use our mobile data.… »
-
Quick review: Columbus Day – Craig Alanson (Expeditionary Force)
Columbus Day doesn't quite know what it wants to be. Joe Bishop is hiding from technologically-advanced aliens, then he's a Starship Trooper, a several page description of military technologies follows, and then not much happens while Joe does farming and slice-of-lifey things with a side… »
-
Bookmarklet: Switch account from Google Forms
Click and drag to bookmarks bar: Forms Switch User
window.location='https://drive.google.com/accounts?continueUrl='+encodeURIComponent(window.location.href.replace('formrestricted','viewform'));void(0);Google Forms are sometimes restricted to users from a certain Google organisation,… »
-
Crypto failures in the wild
Sony PlayStation 3 ECDSA random number reuse
The Sony PlayStation 3 (2006) uses Elliptic Curve DSA (ECDSA) to sign executable binaries.
ECDSA takes a private key \(d_A\) and a random number \(k\) with public parameters \(G\), \(n\) and public key \(Q_A = d_A G\), and… »
-
Guide: Magisk root and (Ed)Xposed using official releases on the Xiaomi Mi A2 (Android 9.0)
This is a guide on rooting the Xiaomi Mi A2 using Magisk and installing Xposed via EdXposed for Android Pie 9.0, using the official releases.
Unlocking the bootloader
Firstly we need to unlock the bootloader to allow us to flash new images. Go to Settings… »