Jumtee Security is a Specialist in Offensive and Defensive 1-Wire Hardware Security

Jumtee is a West Coast security research firm that is an expert in the security of Dallas Semi/Maxim/Analog Devices 1-Wire devices.

Defensive Security

Jumtee has deep experience in designing secure systems leveraging 1-Wire security chipsets. Our experience executing attacks and applying System Theoretic Analysis to Threat Modeling allows us to design significantly more secure systems. Contact us today to get an evaluation of how experienced attackers might be able to attack your system.

Offensive Security

Jumtee has a market-leading portfolio of Intellectual Property for chip level attacks for 1-Wire devices, enabling bypassing the security assumptions, as well as experience in identifying and exploiting the gaps in common implementations of 1-Wire security.

Bypassing protection modes at scale

  • EPROM Emulation

  • Write Protection/Authenticated Write Protection

  • Copy Protection

  • Read Protection

  • Decrement Counters

1-Wire Emulators

  • For both standard speed and overdrive speed

  • Bus powered (only require 1-Wire and Ground, no external power or batteries)

  • For Memory, Authenticators (ECDSA, SHA-256, SHA-1, SHA-3, PUF, etc.), etc.

Recovering Master Keys and Root Signing Keys

  • Master Authentication Secret

  • Authority Private Key

Die Level Analysis

  • Analysis of custom-packaged 1-Wire chips

  • Reverse engineering of 1-Wire chips

Changing Factory Provisioning Bytes

  • Including changing Unique 64-bit ROM

  • Custom ROM ID

Data Analysis

  • Automated data analysis of device data formats and dumps

  • Extract EEPROM formats based only on examples of even obfuscated data

Production Data

  • Accurate, up-to-date production volumes for 1-Wire chipsets and devices

We’d love to work with you.