funsec mailing list archives
Re: Facebook Image Privacy
From: Valdis.Kletnieks () vt edu
Date: Tue, 19 Jan 2010 11:17:40 -0500
On Mon, 18 Jan 2010 23:12:17 +0100, Dan Kaminsky said:
I can quantify this with the rate of change of complexity of a system.
Well, if you're talking *rate* of change...
If you add one kilobyte of complexity to Windows (consuming literally 8192 bits extra space on the DVD), you have not done much to the difficulty of breaking Windows. If you add one kilobyte of complexity to an RSA key (literally, adding another 4096 bits to p and q respectively), you most assuredly have done much to to the difficulty of breaking this particular RSA key.
Adding 8K to the acres of bits of already on the DVD is proportionally smaller than adding even 1 bit to a 4096-bit RSA key. And I'll submit the notion that if it's the *right* 8192 bits, it can add immensely to the difficulty. I'd have to go back and check, but the stack address randomization bits added to the Linux kernel were actually quite tiny, but added a lot to the difficulty.
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Current thread:
- Re: Facebook Image Privacy, (continued)
- Re: Facebook Image Privacy Blue Boar (Jan 18)
- Re: Facebook Image Privacy Dan Kaminsky (Jan 18)
- Re: Facebook Image Privacy Blue Boar (Jan 18)
- Re: Facebook Image Privacy Dan Kaminsky (Jan 18)
- Re: Facebook Image Privacy Blue Boar (Jan 18)
- Re: Facebook Image Privacy Dan Kaminsky (Jan 18)
- Re: Facebook Image Privacy Blue Boar (Jan 18)
- Re: Facebook Image Privacy Dan Kaminsky (Jan 18)
- Re: Facebook Image Privacy Blue Boar (Jan 18)
- Re: Facebook Image Privacy Larry Seltzer (Jan 18)
- Re: Facebook Image Privacy Valdis . Kletnieks (Jan 19)
- Re: Facebook Image Privacy Dan Kaminsky (Jan 19)
- Re: Facebook Image Privacy der Mouse (Jan 18)
- Re: Facebook Image Privacy Imri Goldberg (Jan 17)