Anti-Tempest Fonts, Where?
man gpg the above cmd mentions anti tempest fonts. what does this mean exactly? where are the anti-tempest fonts? i've searched the net for them and cannot find them. the only mention of soft tempest fonts were within a .zip containing image files claimed to be for example only. do tempest resistant fonts exist? Il mittente di questo messaggio|The sender address of this non corrisponde ad un utente |message is not related to a real reale ma all'indirizzo fittizio|person but to a fake address of an di un sistema anonimizzatore |anonymous system Per maggiori informazioni |For more info https://www.mixmaster.it ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: Anti-Tempest Fonts, Where?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 George Orwell wrote: do tempest resistant fonts exist? First, it's not tempest resistant. TEMPEST is the name of the NSA's standard on Van Eck-resistant hardware. What you're talking about is Van Eck surveillance. I know, I know, PGP Corporation calls it Tempest resistance. They're wrong, too. Anyway, taking off the pedantry hat... I am unaware of any empirical evidence that suggests PGP's Van Eck-resistant fonts really offer much, if any, security against Van Eck surveillance. If you're dealing with people who are willing to park a van down the block and dedicate a crew of surveillance experts and a few thousand bucks of directional antennas and custom-built FPGAs at you, my best advice is to (a) run away and (b) build a Faraday cage. -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.8 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iFYEAREIAAYFAkeooC4ACgkQf2XByo0Cu7M8WgDbBHkrkNUpHMFZfykVffOsaTFw 9E3JVJ1mXBHmPgDdEdXJcN3vftBtGKw3va7zIPmNgVS/GmVFShYAWYkBHAQBAQgA BgUCR6igLgAKCRC3APSC/q+BCZ2ECACMdFOEH47rTF03Cm834FWFNnegnGs8UGXD z/uBEtrO212nIBSKXqEfLxL0137dnx8Y9e6NmU4XfxS5DhbpWY2baqiuJcSGVx7S VSQPHffe1QO31ehlWEChHysKQDZRC+TGpyg/d6JWx+QVn8iixq5qB4N9qIRUrLAK SV1pV4kA8TCPVCh/V8VfR77wdTjE4y5/vIn1iXcVpIZyieZUF3/5yYxN9fLU4m8H UJI7BZTd3KU5PnDmA0X/xPbQaf4fITq+BBc22omDsLu5UEdWpXxw/R92J+1+0op7 uoqxqh3Hq51GoIsItirFTGLvLElcYAKBZKHWeeauxktOcnrjwRrH =3//e -END PGP SIGNATURE- ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: Anti-Tempest Fonts, Where?
On Sat, Feb 02, 2008 at 06:16:23AM +0100, George Orwell wrote: man gpg the above cmd mentions anti tempest fonts. what does this mean exactly? where are the anti-tempest fonts? i've searched the net for them and cannot find them. the only mention of soft tempest fonts were within a .zip containing image files claimed to be for example only. do tempest resistant fonts exist? No. Or at least, not any longer. There was a font package available a few years ago that was an offshoot of some work done by Markus Kuhn and Ross Anderson at the University of Cambridge. More recently, they improved the attack enough that the fonts were no longer effective. See http://www.cl.cam.ac.uk/~mgk25/emsec/softtempest-faq.html I'll update the manual so it does not reference the fonts any longer. David ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: Anti-Tempest Fonts, Where?
Makes me curious, how relevant is it these days, especially with age of (presumably) lower emission LCD screen? On Feb 5, 2008 11:00 AM, David Shaw [EMAIL PROTECTED] wrote: On Sat, Feb 02, 2008 at 06:16:23AM +0100, George Orwell wrote: man gpg the above cmd mentions anti tempest fonts. what does this mean exactly? where are the anti-tempest fonts? i've searched the net for them and cannot find them. the only mention of soft tempest fonts were within a .zip containing image files claimed to be for example only. do tempest resistant fonts exist? No. Or at least, not any longer. There was a font package available a few years ago that was an offshoot of some work done by Markus Kuhn and Ross Anderson at the University of Cambridge. More recently, they improved the attack enough that the fonts were no longer effective. See http://www.cl.cam.ac.uk/~mgk25/emsec/softtempest-faq.html I'll update the manual so it does not reference the fonts any longer. David ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users -- Hideki Saito ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: Anti-Tempest Fonts, Where?
Hideki Saito wrote: Makes me curious, how relevant is it these days, especially with age of (presumably) lower emission LCD screen? An unshielded monitor cable puts out a lot of RF, regardless of what kind of monitor it's plugged into. LCDs can be Van Ecked, just as can CRTs. ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
