editor's blog
Subscribe Now

Firewalls Everywhere

We recently heard Netronome’s view on next-generation firewalls, and in particular, how they are migrating from the more traditional boundary protection to be distributed throughout compute farms on each rack.

Well, it goes beyond that, at least in Icon Labs’ view; I talked with them at ESC (or Design West, or ESC, a subsidiary of Design West). They point out the fact that embedded systems are all becoming hackable, with a few interesting examples:

–          Apparently if you send the right text message to the right phone number, you can defeat a car’s anti-theft mechanism and drive off with it. (“Dude, where’s my car??” “Oops, sorry, wrong number…”)

–          If you hack a printer, you can steal the images stored in memory.

–          Pacemakers have been successfully hacked in the lab.

So they see small, embeddable firewalls as critical to closing off these unexpected intrusions.  They need to be incorporated at the lowest possible levels in communications stacks, and they need to be worked into safety-critical standards. From a size standpoint, we are talking small: they target Zilog 8-bit MCUs, with 10-12K of ROM and 40K of RAM.

Whoever would have thought that 8-bit MCUs would be running firewalls…

Leave a Reply

featured blogs
Jul 3, 2020
[From the last episode: We looked at CNNs for vision as well as other neural networks for other applications.] We'€™re going to take a quick detour into math today. For those of you that have done advanced math, this may be a review, or it might even seem to be talking down...
Jul 2, 2020
Using the bitwise operators in general, and employing them to perform masking operations in particular, can be extremely efficacious....
Jul 2, 2020
In June, we continued to upgrade several key pieces of content across the website, including more interactive product explorers on several pages and a homepage refresh. We also made a significant update to our product pages which allows logged-in users to see customer-specifi...

featured video

Product Update: What’s Hot in DesignWare® IP for PCIe® 5.0

Sponsored by Synopsys

Get the latest update on Synopsys' DesignWare Controller and PHY IP for PCIe 5.0 and how the low-latency, compact, power-efficient, and silicon-proven solution can enable your SoCs while reducing risk.

Click here for more information about DesignWare IP Solutions for PCI Express

Featured Paper

Cryptography: A Closer Look at the Algorithms

Sponsored by Maxim Integrated

Get more details about how cryptographic algorithms are implemented and how an asymmetric key algorithm can be used to exchange a shared private key.

Click here to download the whitepaper

Featured Chalk Talk

Innovative Hybrid Crowbar Protection for AC Power Lines

Sponsored by Mouser Electronics and Littelfuse

Providing robust AC line protection is a tough engineering challenge. Lightning and other unexpected events can wreak havoc with even the best-engineered power supplies. In this episode of Chalk Talk, Amelia Dalton chats with Pete Pytlik of Littelfuse about innovative SIDACtor semiconductor hybrid crowbar protection for AC power lines, that combine the best of TVS and MOV technologies to deliver superior low clamping voltage for power lines.

More information about Littelfuse SIDACtor + MOV AC Line Protection