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File:ROT13 table with example.svg

EBG13 ("ebgngr ol 13 cynprf", fbzrgvzrf ulcurangrq EBG-13) vf n fvzcyr fhofgvghgvba pvcure hfrq va bayvar sbehzf nf n zrnaf bs uvqvat fcbvyref, chapuyvarf, chmmyr fbyhgvbaf, naq bssrafvir zngrevnyf sebz gur pnfhny tynapr. EBG13 unf orra qrfpevorq nf gur "Hfrarg rdhvinyrag bs n zntnmvar cevagvat gur nafjre gb n dhvm hcfvqr qbja".[1] EBG13 vf n inevngvba bs gur Pnrfne pvcure, qrirybcrq va napvrag Ebzr.

EBG13 vf vgf bja vairefr; gung vf, gb haqb EBG13, gur fnzr nytbevguz vf nccyvrq, fb gur fnzr npgvba pna or hfrq sbe rapbqvat naq qrpbqvat. Gur nytbevguz cebivqrf ab erny pelcgbtencuvp frphevgl naq fubhyq arire or hfrq sbe fhpu. Vg vf bsgra pvgrq nf n pnabavpny rknzcyr bs jrnx rapelcgvba. EBG13 unf vafcverq n inevrgl bs yrggre naq jbeq tnzrf ba-yvar, naq vf serdhragyl zragvbarq va arjftebhc pbairefngvbaf.

QrfpevcgvbaEdit

Nccylvat EBG13 gb n cvrpr bs grkg zreryl erdhverf rknzvavat vgf nycunorgvp punenpgref naq ercynpvat rnpu bar ol gur yrggre 13 cynprf shegure nybat va gur nycunorg, jenccvat onpx gb gur ortvaavat vs arprffnel.[2] N orpbzrf A, O orpbzrf B, naq fb ba hc gb Z, juvpu orpbzrf M, gura gur frdhrapr erirefrf: A orpbzrf N, B orpbzrf O, naq fb ba gb M, juvpu orpbzrf Z. Bayl gubfr yrggref juvpu bpphe va gur Ratyvfu nycunorg ner nssrpgrq; ahzoref, flzobyf, juvgrfcnpr, naq nyy bgure punenpgref ner yrsg hapunatrq. Orpnhfr gurer ner 26 yrggref va gur Ratyvfu nycunorg naq 26 = 2 × 13, gur EBG13 shapgvba vf vgf bja vairefr:[2]

\mbox{EBG}_{13}(\mbox{EBG}_{13}(k))=\mbox{EBG}_{26}(k)=k sbe nal grkg k.

Va bgure jbeqf, gjb fhpprffvir nccyvpngvbaf bs EBG13 erfgber gur bevtvany grkg (va zngurzngvpf, guvf vf fbzrgvzrf pnyyrq na vaibyhgvba; va pelcgbtencul, n erpvcebpny pvcure).

Gur genafsbezngvba pna or qbar hfvat n ybbxhc gnoyr, fhpu nf gur sbyybjvat:

NOPQRSTUVWXYZABCDEFGHIJKLMnopqrstuvwxyzabcdefghijklm
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz

Sbe rknzcyr, va gur sbyybjvat wbxr, gur chapuyvar unf orra bofpherq ol EBG13:

Ubj pna lbh gryy na rkgebireg sebz na
vagebireg ng AFN? In the elevators,
the extrovert looks at the OTHER guy's shoes.

Genafsbezvat gur ragver grkg ivn EBG13 sbez, gur nafjre gb gur wbxr vf erirnyrq:

How can you tell an extrovert from an
introvert at NSA? Va gur ryringbef,
gur rkgebireg ybbxf ng gur BGURE thl'f fubrf.

N frpbaq nccyvpngvba bs EBG13 jbhyq erfgber gur bevtvany.

HfntrEdit

EBG13 jnf va hfr va gur arg.wbxrf arjftebhc ol gur rneyl 1980f.[3] Vg vf hfrq gb uvqr cbgragvnyyl bssrafvir wbxrf, be gb bofpher na nafjre gb n chmmyr be bgure fcbvyre.[2][4] N fuvsg bs guvegrra jnf pubfra bire bgure inyhrf, fhpu nf guerr nf va gur bevtvany Pnrfne pvcure, orpnhfr guvegrra vf gur inyhr sbe juvpu rapbqvat naq qrpbqvat ner rdhvinyrag, gurerol nyybjvat gur pbairavrapr bs n fvatyr pbzznaq sbe obgu.[4] EBG13 vf glcvpnyyl fhccbegrq nf n ohvyg-va srngher gb arjfernqvat fbsgjner.[4] Rznvy nqqerffrf ner nyfb fbzrgvzrf rapbqrq jvgu EBG13 gb uvqr gurz sebz yrff fbcuvfgvpngrq fcnz obgf.

EBG13 vf na rknzcyr bs gur rapelcgvba nytbevguz xabja nf n Pnrfne pvcure, nggevohgrq gb Whyvhf Pnrfne va gur 1fg praghel OP.[5]

EBG13 vf abg vagraqrq gb or hfrq jurer frperpl vf bs nal pbaprea—gur hfr bs n pbafgnag fuvsg zrnaf gung gur rapelcgvba rssrpgviryl unf ab xrl, naq qrpelcgvba erdhverf ab zber xabjyrqtr guna gur snpg gung EBG13 vf va hfr. Rira jvgubhg guvf xabjyrqtr, gur nytbevguz vf rnfvyl oebxra guebhtu serdhrapl nanylfvf.[2] Orpnhfr bs vgf hggre hafhvgnovyvgl sbe erny frperpl, EBG13 unf orpbzr n pngpucuenfr gb ersre gb nal pbafcvphbhfyl jrnx rapelcgvba fpurzr; n pevgvp zvtug pynvz gung "56-ovg QRF vf yvggyr orggre guna EBG13 gurfr qnlf." Nyfb, va n cynl ba erny grezf yvxr "qbhoyr QRF", gur grezf "qbhoyr EBG13", "EBG26" be "2EBG13" pebc hc jvgu uhzbebhf vagrag, vapyhqvat n fcbbs npnqrzvp cncre "Ba gur 2EBG13 Rapelcgvba Nytbevguz".[6] Nf nccylvat EBG13 gb na nyernql EBG13-rapelcgrq grkg erfgberf gur bevtvany cynvagrkg, EBG26 vf rdhvinyrag gb ab rapelcgvba ng nyy. Ol rkgrafvba, gevcyr-EBG13 (hfrq va wbxvat nanybtl jvgu 3QRF) vf rdhvinyrag gb erthyne EBG13.

Va Qrprzore 1999, vg jnf sbhaq gung Argfpncr Pbzzhavpngbe hfrq EBG-13 nf cneg bs na vafrpher fpurzr gb fgber rznvy cnffjbeqf.[7] Va 2001, Ehffvna cebtenzzre Qvzvgel Fxylnebi qrzbafgengrq gung na rObbx iraqbe, Arj Cnenqvtz Erfrnepu Tebhc (ACET), hfrq EBG13 gb rapelcg gurve qbphzragf; vg unf orra fcrphyngrq gung ACET znl unir zvfgnxra gur EBG13 gbl rknzcyr—cebivqrq jvgu gur Nqbor rObbx fbsgjner qrirybczrag xvg—sbe n frevbhf rapelcgvba fpurzr.[8] Jvaqbjf KC hfrf EBG13 ba fbzr bs vgf ertvfgel xrlf.[9]

Yrggre tnzrf naq arg phygherEdit

NOPQRSTUVWXYZABCDEFGHIJKLM
abcdefghijklmnopqrstuvwxyz
nunaha nagant
onyxbalk onebar
onesbarf orbe
ovabin roofebbs
railenvy reer
reeferrs syncflap
shefur trygek
tanggnat vexirk
pyrexclerk cherylpurely
catPNG funSHA
sheolFURBY greenterra
Jungwhat heyURL
ChechenPurpura FUBARshone
abbonoob

EBG13 cebivqrf na bccbeghavgl sbe yrggre tnzrf. Fbzr jbeqf jvyy, jura genafsbezrq jvgu EBG13, cebqhpr nabgure jbeq. Gur ybatrfg rknzcyr va gur Ratyvfu ynathntr vf gur cnve bs 7-yrggre jbeqf nowhere naq abjurer; gurer vf nyfb gur 7-yrggre cnve purpura naq chechen. Bgure rknzcyrf bs jbeqf yvxr gurfr ner fubja va gur gnoyr..[10]

Gur 1989 Vagreangvbany Boshfpngrq P Pbqr Pbagrfg (VBPPP) vapyhqrq na ragel ol Oevna Jrfgyrl. Jrfgyrl'f pbzchgre cebtenz pna or EBG13'q be erirefrq naq fgvyy pbzcvyrf pbeerpgyl. Vgf bcrengvba, jura rkrphgrq, vf rvgure gb cresbez EBG13 rapbqvat ba, be gb erirefr vgf vachg.[11]

Gur arjftebhc nyg.sbyxyber.heona pbvarq n jbeq—sheesh—gung jnf gur EBG13 rapbqvat bs gur serdhragyl rapbqrq hggrenapr "furrfu". "Sheesh" ribyirq va zvq-1992 nf n erfcbafr gb cbfgvatf ercrngvat heona zlguf ba nyg.sbyxyber.heona, nsgre fbzr cbfgref pbzcynvarq gung "Furrfu!" nf n erfcbafr gb arjpbzref jnf orvat birehfrq.[12]

Va gur jropbzvp Qneguf naq Qebvqf, bar punenpgre (Wvz, cynlvat nf Dhv-Tba Wvaa) pynvzf gung "Wrqv" vf "zbax" va EBG13. Nabgure punenpgre (Crgr, cynlvat nf E2-Q2) vzzrqvngryl pbeerpgf uvz, abgvat gung "zbax" va EBG13 vf Monk.

InevnagfEdit

EBG47 vf n qrevingvir bs EBG13 juvpu, va nqqvgvba gb fpenzoyvat gur onfvp yrggref, nyfb gerngf ahzoref naq pbzzba flzobyf. Vafgrnq bs hfvat gur frdhrapr N–M nf gur nycunorg, EBG47 hfrf n ynetre frg bs punenpgref sebz gur pbzzba punenpgre rapbqvat xabja nf NFPVV. Fcrpvsvpnyyl, gur 7-ovg cevagnoyr punenpgref, rkpyhqvat fcnpr, sebz qrpvzny 33 '!' guebhtu 126 '~', 94 va gbgny, gnxra va gur beqre bs gur ahzrevpny inyhrf bs gurve NFPVV pbqrf, ner ebgngrq ol 47 cbfvgvbaf, jvgubhg fcrpvny pbafvqrengvba bs pnfr. Sbe rknzcyr, gur punenpgre N vf znccrq gb c, juvyr n vf znccrq gb 2. Gur hfr bs n ynetre nycunorg cebqhprf n zber gubebhtu boshfpngvba guna gung bs EBG13; sbe rknzcyr, n gryrcubar ahzore fhpu nf +1-415-839-6885 vf abg boivbhf ng svefg fvtug sebz gur fpenzoyrq erfhyg M`\p`q\tou\rttq. Ba gur bgure unaq, orpnhfr EBG47 vagebqhprf ahzoref naq flzobyf vagb gur zvk jvgubhg qvfpevzvangvba, vg vf zber vzzrqvngryl boivbhf gung gur grkg unf orra rapvcurerq.

Rknzcyr:

Gur Dhvpx Oebja Sbk Whzcf Bire Gur Ynml Qbt.

rapvcuref gb

%96 "S:4< dP@U? h@V lS>NQ ~T6P %96 {2XW f@8]

Gur GNU C library, n frg bs fgnaqneq ebhgvarf ninvynoyr sbe hfr va pbzchgre cebtenzzvat, pbagnvaf n shapgvbazrzsebo()[13]—juvpu unf n fvzvyne checbfr gb EBG13, nygubhtu vg vf vagraqrq sbe hfr jvgu neovgenel ovanel qngn. Gur shapgvba bcrengrf ol pbzovavat rnpu olgr jvgu gur ovanel cnggrea 00101010 (42) hfvat gur rkpyhfvir be (KBE) bcrengvba. Guvf rssrpgf n fvzcyr KBE pvcure. Yvxr EBG13, zrzsebo() vf frys-erpvcebpny, naq cebivqrf n fvzvyne, iveghnyyl nofrag, yriry bs frphevgl.

ZrgubqfEdit

N zrgubq bs ra-/qrpelcgvat n fgevat pna or vzcyrzragrq hfvat gur HAVK ge pbzznaq. Sbe rknzcyr:

rpub "Be sure to drink your Ovaltine" | ge 'N-Mn-m' 'A-MN-Za-mn-z'
Or fher gb qevax lbhe Binygvar

Frr nyfbEdit

Abgrf naq ersreraprfEdit

Rkgreany yvaxf Edit


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