Teardown of a Model SID700 RSA SecurID Token

Kerry Wong conducts a teardown of a SecurID token, which includes a unique epoxy/glue method of assembly and also a protection mechanism that somehow detects when the token has been tampered with.

These RSA SecurID tokens basically are just pseudo-random number generators. Each token displays a random number from the sequence predetermined by the seed value and the algorithm every minute. During authentication, the user selected passcode (typically chosen when the SecurID was initially assigned) concatenated with the random number displayed at the time being forms the password, which is used to authenticate to the server. Because the clock on the SecurID token and that on the server are independent, the cumulative effect of clock drift would result in the number generated from the token to be out of sequence compared to the number generated on the server. Thus the server side employees some kind of algorithm to periodically adjust the actual pseduo-random number generated based on the actual number presented from the SecurID.

Watch:


Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here: adafruit.com/editorialstandards

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat and our Discord!

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Join over 38,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — New Products 11/8/2024 Featuring Adafruit Pixel Shifter – For Addressable LEDs! (Video)

Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: MicroPython v1.24.0 is here, a Halloween Wrap-up and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

Adafruit IoT Monthly — Halloween, WiLo, and more!

Maker Business – Adafruit Daily — First Solar’s $1.1 billion development of vertically integrated factory in the U.S.

Electronics – Adafruit Daily — Oscilloscope Jumble

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at AdafruitDaily.com !



No Comments

No comments yet.

Sorry, the comment form is closed at this time.