How to tell original from fake DS18B20 temperature sensors.

Hardware-based attestation / intrusion detection app for Android devices. It provides both local verification with another Android device via QR codes and optional scheduled server-based verification with support for alert emails. It uses hardware-backed keys and attestation support as the foundation and chains trust to the app for software checks.

SHA-3 and Keccak checksum utility

Keccak-family hashing library

Server code for use with the Auditor app: https://github.com/GrapheneOS/Auditor. It provides two services: submission of attestation data samples and a remote attestation implementation with email alerts to go along with the local implementation based on QR code scanning in the app.

A small subset of the submitted sample data from https://github.com/GrapheneOS/Auditor. It has a sample attestation certificate chain per device model (ro.product.model) along with a subset of the system properties from the sample as supplementary information.

Public addresses for OriginalMy Dapps and smart-contracts (ETC/ETH)

Auditor app prebuilt using the latest official release of the Auditor app.

SHA-2-family hashing library

how can create one secured access from browser like https://site.test

Hash-based encrypt/decrypt for PHP

A study on the historical authenticity of a text. The historical authenticity is evaluated by comparing the frequencies of unigrams, bigrams and trigrams of a given text to the frequencies of the ngrams of texts written in the period of +/- 5 years from the claimed date of the release of the given text and to the frequency of the ngrams of recent texts. A tool to visualise the findings made with pandas and matplotlib-pyplot is included.

A secure chat system that protects messages from outsiders including the service provider itself