How to protect myself from clock skew?

Apr 12, 2010 9 Replies

Hi:



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Apparently clock skew is a way in which my presence on the net can be tracked. Is there a workaround? Is it possible for me to obtain a dynamic clock skew so that the skew keeps changing?



The article in the above link made me concerned.


Thanks,



Green Xenon


Set up a process to dither your system clock, I suppose. Or buy a computer with a clock crystal system that does it in hardware. (I've bought such crystal clock chips and used them to pass european RF emission specs.)

Jon

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Keep off-line.

It's not. Lots of other things are.

Is there a workaround? Is it possible for me to obtain a

Why? As Scott McNealy said, you have no privacy, get used to it.

John

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In any case, the technique seems designed to answer, with some level of certainty, the question "Is computer X the same computer as computer Y?"

But before you can sensibly ask the question, you have to have, or have had, connections to the two candidates.

The technique doesn't answer the question "Where is the computer that I previously identified as computer X?" so it's somewhat misleading to call it tracking.

Sylvia.

Make sure to wear an Aluminum foil hat. Tin foil hats don't work with clock skew :-) ...Jim Thompson

| James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | The only thing bipartisan in this country is hypocrisy

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There are other things that should cause you (if you're that type) to lose sleep at night :>

You, *personally*, can be "tracked", to some degree, by the nature of your commentary, types of sites you visit, folks you typically interact with, etc.

Unless you write *all* the software that runs on your computer yourself, you'll never be sure that some piece of software isn't already making it easy for you to be identified ("you" meaning "your machine"). Even that, in fact, can make the machine identifiable: "Hmmm... this machine shows none of the identifiable characteristics associated with *other* machines! That makes it unique and, as such, identifiable"

In Internet-speak, tracking typically is intended as you have described it. There isn't, as a direct goal, a desire to "find" a particular computer. But, rather, to be able to look at a particular connection -- or, the "leavings" from such a connection -- and try to determine if that is the same machine and/or individual *operating* said machine as some other, previously noted "connection".

I.e., is "me" still "me"?

A more involved problem is "tracking" users. E.g., regardless of which machine they are operating (since it is relatively easy, nowadays, to have access to dozens of different computers without having to expend great deals of money to do so!)

.

=A0 =A0 ...Jim Thompson

=A0 =A0| =A0 =A0mens =A0 =A0 |

=A0 | =A0 =A0 et =A0 =A0 =A0|

=A0|

=A0 =A0 =A0 |

Face it - you're skewed

Read the comments here

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They can't really track you.

Looks like I found a solution to the horrors of clock skew fingerprinting:

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