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followers: 72.0 following: 1.0 repos: 125.0 gists: 8.0

Name: Dirk-Willem van Gulik

Type: User

Company: Web Weaving

Blog: www.webweaving.org

Dirk-Willem van Gulik's Projects

saleae-logic-iso7816-smartcard-analyser

Analyser for the ISO7816 smart cards and SIM card protocol to be used with the Logic Analyser of Saleae.

sample-aes-bitflip-attack

Example of an bitflip attack on a known plaintext AES encrypted (AKA why you always want to HMAC your encrypted strings). With a simple CRC checksum 'not helping' to boot.

security-pinning-by-ca

Example of locking down an NSURLConnection to a specific set of CAs on iOS/Cocoa

shellshocker-pocs

Collection of Proof of Concepts and Potential Targets for #ShellShocker

signal-desktop

Signal — Private Messenger for Windows, Mac, and Linux

signal-ios

Free, world-wide, private messaging and phone calls for iPhone.

smime-add-encryption-for-recipient

Small tool to add additional recipients to an S/MIME encrypted message using existing keys & structure (thus avoiding the need to re-encrypt all & sundry).

smpte-ebu-timecodegenerator-esp32

ESP32 based SMPTE/EBU timecode generator, with NTP slaving, for Leitch and similar studio/broadcast clocks.

smpte-saleae-analyser

SMPTE/EBU LC Timecode analyser for a Saleae Logic or Logic15

sousvide-arduino-tft

Sousvide controller; with Arduinio (UNO), DS18B20 or MAX6675 temperature sensor and a TFT screen to show what is going on.

stm8flash

program your stm8 devices with SWIM/stlinkv(1,2)

tee-log

Send Serial logging (also) to telnet, syslog, MQTT or a browser. To ease networked Arduino debugging.

tek2rpi

command line utility to calculate the RPIs of a given day given a TEK according to the GAEN protocol

trezor-agent

Using TREZOR as a hardware SSH/GPG agent

uiimagepngrepresentationbug

Demonstrate issue with UIImagePNGRepresentationBug and rotation

uzi-medicalchipcard-demo

Simple Apache HTTPD Webserver based demo of the Dutch Medical UZI smartcards and authentication.

vaccine-credential-ig

Draft FHIR Implementation Guide for a Vaccine Yellow Card

verify-ehc

Simple Python script to decode and verify an European Health Certificate QR-code

Utility to resign an existing x509 certificate 'as is' -- keeping as much of the metadata and X509v3 extensions the same. But change the Authority/Subject key identifiers, swap out the public key and resign. Useful for making test sets based on 'real' certificates taken from the wild.

xbimagefilters

OpenGL ES 2-based image filters for iOS

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Dirk-Willem van Gulik's Projects

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