Unix Servers

• Firewall configuration, user management, SSH key managment, x509 TLS/SSL certificate management
• Penetration testing with Nmap, Ettercap, Ethereal/Wireshark, Kismet, and Metasploit

One Time Passcodes

Designed and implemented OATH, HOTP (IETF RFC 4226) and TOTP (IETF RFC 6238) authentication solutions on Android, embedded Linux and microcontrollers

IoT Security

Designed secure protocols and API methods for communication to mobile apps and their connected devices, end-to-end.