On 8 Dec 2008, at 21:13, JOHN GALT wrote:
The iconic Paper explaining this is "Why Johnny Can't Encrypt"
available here: http://portal.acm.org/citation.cfm?id=1251435
Orlbaq gur "Jul Wbuaal" cncre - sbphfvat hcba hfnovyvgl - V guvax
gurer vf n uvture ceboyrz bs vagrebcrenovyvgl naq vasbezngvba-npprff
ng cynl urer.
Gurer pna or ab npprff gb lbhe znvy jvgubhg hfr bs n pyvrag vs lbh ner
hfvat pelcgbtencul - rira EBG13 - naq guvf nybar vf n ovt ceboyrz,
orpnhfr zrqvngrq npprff gb lbhe r-znvy vf *ernyyl* cnvashy.
Sbe fbzr 15 lrnef V hfrq zu/azu/rkzu (ynggreyl jvgu srgpuznvy), gura
zbirq gb Znvy.ncc, erpragyl gevrq Guhaqreoveq sbe n srj zbaguf, naq nz
er-pbafvqrevat azu sbe ybat-grez nepuvivat bs r-znvy. V nyfb hfr zl
vCbq, guerr yncgbcf jvgu inelvat fcrpvrf bs Havk, naq n 3T cubar gb
npprff r-znvy. Bppnfvbanyyl V fgvyy pbcl fghss bhg bs /ine/znvy/.
V jbhyq unir fhssrerq vzzrafryl jrer V erdhverq gb hfr n cnegvphyne
pelcgb-ranoyrq pyvrag gb qrny jvgu zl r-znvy ng rnpu fgntr, be jrer V
erdhverq gb hfr uvfgbevpny pelcgb-pyvragf gb npprff byqre znvyf.
Nalbar jubfr pbyyrtr gurfvf vf va JbeqCresrpg ba n 5.25" sybccl ng gur
onpx bs n pybfrg fbzrjurer, fubhyq haqrefgnaq guvf ceboyrz.
Gb guvf qnl Cebwrpg Thgraoret hfrf syng NFPVV nf n ybjrfg pbzzba
qrabzvangbe sbezng, naq fvzvyneyl V arrq zl r-znvy va gur fvzcyrfg
sbez fb gung V pna terc vg, crey vg, dhbgr vg naq frnepu vg.
Fb "jul unf rapelcgrq r-znvy snvyrq?" V fhfcrpg gung fgngvp qngn
rapelcgvba eribygf ntnvafg gur angher bs crefbany pbzzhavpngvba naq
gur arrqf bs crefbany vasbezngvba er-hfr.
Sbe pbzcnevfba, pbafvqre gur pbairetrapr bs vafgnag zrffntvat naq r-
znvy - gurl ner orpbzvat rire zber nyvxr, ohg gur sbezre zbfgyl eryvrf
hcba raq gb raq genafcbeg frphevgl, bsgra nffhzvat gung gur cevinpl bs
ybtf ng rvgure raq ner ng gur juvz bs *gung* hfre.
Sbe fbzr ernfba guvf jbexf engure jryy; nf frphevgl trrxf jr pbzcynva
nobhg vg, ohg gurer unir orra znal gvzrf jura Fxlcr unf onvyrq zr bhg
bs gebhoyr jvgu vgf novyvgl gb qevyy guebhtu nyzbfg nalguvat naq
cebivqr zr jvgu zrffntvat naq svyr-genafsre.
Fvzvyneyl NVZ, Wnoore, TPung - nyy bs juvpu V unccvyl eha jvgu BGE -
tvir zr arprffnel zbfgyl-frpher pbzzhavpngvba.
Va gur jbeyq bs r-znvy gur ceboyrz vf gung gur raq-hfre vaurevgf n
oybo bs qngn juvpu jnf rapelcgrq va beqre gb qrsraq gur zrffntr nf vg
cnffrf ubc ol ubc bire gur fgber-naq-sbejneq FZGC-erynl (be HHPC?) r-
znvy argjbex... ohg gur hfre vf yrsg gb qrny jvgu gur rssrpgf bs
fbyivat gur *genafcbeg* frphevgl ceboyrz.
Gur zbqry vf byq. Vg vf ohfgrq. Vg vf (gbqnl) jebat.
Vg'f yvxr beqrevat ybofgre ovfdhr, naq univat n yvir ybofgre ghea hc
ng lbhe gnoyr; jung lbh jnag vf va gurer - urnivyl nezberq - naq lrf
lbh pna eraqre jung lbh erprvir vagb jung lbh npghnyyl qrfver; OHG
vg'f zrffl naq lbh'er ernyyl fghpx hayrff lbh unir n zbhyv, n fnhprcna
naq n fznyy CTC ubgcyngr ng unaq.
Naq bs pbhefr lbh unir gb nepuvir pbcvrf bs gur ybofgre, abg gur fbhc.
F/ZVZR naq vgf oergurera rkvfg gb fvzhygnarbhfyl nqqerff gur frphevgl
bs qngn va zbgvba naq qngn ng erfg - ohg crbcyr qba'g jnag gur ynggre
va gur sbez gung vg cebivqrf, orpnhfr vg vauvovgf vagrebcrenovyvgl naq
hfnovyvgl ng n yriry nobir gur "guvf fbsgjner fhpxf" znggre...
Naq vs gur qngn va zbgvba "raq gb raq" frphevgl vffhr vf orvat
nqqerffrq ol guvatf yvxr VZ/BGE naq Fxlcr, gura creuncf "frpher" r-
znvy jvyy fbba tb gur jnl bs Gryarg naq SGC?
- nyrp
ps: if you are stuck, try www.rot13.com
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