Attacking AES CBC non-existent integrity protection

Modes of operation, a very short recap The Advanced Encryption Standard (AES) is very likely the most prominent block cipher these days. Since most messages which should be encrypted are larger than 128 bits (which is the block size of AES), a so called mode of operation is used. A mode of operation describes how … Read more

Budget “USB Rubber Ducky” – Digispark Attiny85

A USB Rubber Ducky is a keystroke injection tool disguised as a generic flash drive. The most prominent one being Hak5’s USB Rubber Ducky. Its general idea is to look like a normal USB flash drive while acting like a keyboard, with prerecorded key strokes, when being attached to a computer. One can program it … Read more