USB Authentication Key for Software Licensing and Revenue Protection

TEAleaf-USB is a low cost authentication system which may be used to verify that a software product is not an unauthorized pirate copy. The host processor uses a simple but robust algorithm to verify that a TEAleaf device is present, using a 128-bit encryption key.

A complete set of BOM and Gerber blueprints is available off-the-shelf manufacture of ultra low cost TEAleaf-USB hardware security keys.

TEAleaf-USB uses the Human Interface Device (HID) USB profile. It does not require USB drivers and is immediately plug-and-play compatible with present and future Windows, Linux and Mac operating systems.

TEAleaf-USB is firmware for the PIC18F2450 and, when available, PIC18F14K50 microcontrollers. They require only a few discrete components and are available in DIL and SSOP packages.

Applications include: 

  • Computer software copy protection and licensing
  • Pay-per-use hardware protection 
  • Random number generation 

5-Minute Product Training Module

TEAleaf-USB Data Sheet

USB HID products Dev Kit

USB Evaluation Board 

Features:

  • True USB 2.0 HID plug and play - No drivers required
  • Ultra low cost single chip solution
  • Low speed USB, can use a low cost resonator 
  • No Vendor ID / Product ID registration required
  • Authentication success indication
  • All-Systems-Go indication
  • Tx / Rx indication
  • Low power indication
  • 5 digital, analog, interrupt virtual I/O