Hackaday

Building A Resistor Substitution Decade Box

[George] built an incredibly tidy resistor substitution decade box. These devices feature a pair of connections and a way to select the resistance between the two of them. In [George’s] case it’s a ...
Nature

Cryptographic Algorithms and Substitution Box Design

Cryptographic algorithms lie at the heart of modern information security, and substitution box (S‐box) design is a critical component in achieving robust encryption. S‐boxes provide the nonlinearity ...
Hackaday

Resistor Substitution Box

[Vincent] on the EEVblog forums had an idea for an inexpensive resistor substitution decade box. The build uses cheap decimal thumbwheel switches he bought on eBay. Each switch is wired up with ...
Design-Reuse

Pipeline AES S-box Implementation Starting with Substitution Table

The SubByte transformation, carried out by S-box, is the most time consuming procedure in Advanced Encryption Standard (AES) algorithm. A look-up table is commonly used for SubByte transformation in ...
Geeky Gadgets

QR10 pocket high accuracy programmable resistance box

Electronic enthusiasts may be interested in a new Kickstarter project created by Eastwood Tech for the QR10 a pocket high accuracy programmable resistance box. “A revolutionary physical instrument ...