Embedded Systems Conference
Breaking News
Comments
Newest First | Oldest First | Threaded View
MeirG
User Rank
Author
re: Turning cyber security on its head
MeirG   10/4/2012 4:48:58 PM
NO RATINGS
And how can I be sure that the ostensibly bit9 site is? Its Identity could be stolen too, can't it?

MindTech
User Rank
Author
re: Turning cyber security on its head
MindTech   10/4/2012 3:47:00 PM
NO RATINGS
I like the idea of trust-based security. But at some point I still have to be able to say that I trust a program. Under something like Bit9's solution, if I find a new piece of software (say open source) do I have to wait until someone on their end can whitelist it before I can run it? As for self-signed, all they would have to do is establish a way for clients to get temporary certificates that their system would allow. Still, it all comes down to who has the final say in what is trusted: me, my OS, my hardware, or my security software.

przemek0
User Rank
Author
re: Turning cyber security on its head
przemek0   10/3/2012 5:48:50 PM
NO RATINGS
So there's been this concept of signed code: executables are signed by their creator, who vouches for their safety, and the OS checks that the creator is who they claim they are and that the executable has not been modified. Microsoft implemented this because they had a horrible problem with third party software and drivers; they required it for drivers for years, but didn't make it mandatory for user executables. Bit9 could use this infrastructure by re-signing the executables they deem to be safe; I suspect that they instead built their own implementation. Unfortunately the article doesn't mention which platforms are covered: I assume Wintel and PCs, but they could also be targeting smartphones. Signed code is coming our way: the new EFI BIOS requires signing of BIOS images, and of the boot loader---this is required by the new Windows 8 hardware spec from Microsoft. I am apprehensive whether this is a good idea all the way through: it essentially gives the control over what software one can install and use to the signing entities. I hope that all such schemes allow self-signing of home-made executables.



Radio
LATEST ARCHIVED BROADCAST
As data rates begin to move beyond 25 Gbps channels, new problems arise. Getting to 50 Gbps channels might not be possible with the traditional NRZ (2-level) signaling. PAM4 lets data rates double with only a small increase in channel bandwidth by sending two bits per symbol. But, it brings new measurement and analysis problems. Signal integrity sage Ransom Stephens will explain how PAM4 differs from NRZ and what to expect in design, measurement, and signal analysis.

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)
Like Us on Facebook
Special Video Section
The LTC®6363 is a low power, low noise, fully differential ...
Vincent Ching, applications engineer at Avago Technologies, ...
The LT®6375 is a unity-gain difference amplifier which ...
The LTC®4015 is a complete synchronous buck controller/ ...
10:35
The LTC®2983 measures a wide variety of temperature sensors ...
The LTC®3886 is a dual PolyPhase DC/DC synchronous ...
The LTC®2348-18 is an 18-bit, low noise 8-channel ...
The LT®3042 is a high performance low dropout linear ...
Chwan-Jye Foo (C.J Foo), product marketing manager for ...
The LT®3752/LT3752-1 are current mode PWM controllers ...
LED lighting is an important feature in today’s and future ...
Active balancing of series connected battery stacks exists ...
After a four-year absence, Infineon returns to Mobile World ...
A laptop’s 65-watt adapter can be made 6 times smaller and ...
An industry network should have device and data security at ...
The LTC2975 is a four-channel PMBus Power System Manager ...
In this video, a new high speed CMOS output comparator ...
The LT8640 is a 42V, 5A synchronous step-down regulator ...
The LTC2000 high-speed DAC has low noise and excellent ...
How do you protect the load and ensure output continues to ...