Read Online Download. Great book, Digital Fortress pdf is enough to raise the goose bumps alone. Add a review Your Rating: Your Comment:. Recent Downloads Hot Ep. Hot Ep. Hot Summerset Abbey by T. Brown by T. Susan ex pl ain ed how the in ter c epted tr an smission s of ten or igin ated f r om dan ger ous gov er n men ts, hostil e f ac tion s, an d ter r or ist gr oups, man y of whom wer e in side U.
Their c ommun ic ation s wer e usual l y en c oded f or sec r ec y in c ase they en ded up in the wr on g han dswhic h, than ks to C O M I N T, they usual l y did. Susan tol d D av id her j ob was to study the c odes, b r eak them b y han d, an d f ur n ish the N SA with the dec ipher ed messages. This was n ot en tir el y tr ue.
The whol e wor l d of c r yptogr aphy had c han ged. Susan s n ew duties wer e c l assif ied, ev en to man y in the highest ec hel on s of power. C odes, B ec ker said, f asc in ated. How do you kn ow wher e to star t?
I mean how do you b r eak them? Y ou of al l peopl e shoul d kn ow. I t s l ike studyin g a f or eign l an guage. B ec ker n odded, impr essed. He wan ted to kn ow mor e.
W ith M er l utti s n apkin s an d c on c er t pr ogr ams as her c hal kb oar d, Susan set out to giv e her c har min g n ew pedagogue a min i c our se in c r yptogr aphy.
She b egan with Jul ius C aesar s per f ec t sq uar e c ipher b ox. C aesar , she ex pl ain ed, was the f ir st c ode-wr iter in histor y. W hen his f oot-messen ger s star ted gettin g amb ushed an d his sec r et c ommun iq u s stol en , he dev ised a r udimen tar y way to en c r ypt this dir ec tiv es.
He r ear r an ged the tex t of his messages suc h that the c or r espon den c e l ooked sen sel ess. Eac h message al ways had a l etter -c oun t that was a per f ec t sq uar esix teen , twen ty-f iv e, on e hun dr eddepen din g on how muc h C aesar n eeded to say. I f they did, an d r ead top-to-b ottom, a sec r et message woul d magic al l y appear. The dev ic e r esemb l ed an ol d-f ashion ed typewr iter with b r ass in ter l oc kin g r otor s that r ev ol v ed in in tr ic ate ways an d shuf f l ed c l ear tex t in to c on f oun din g ar r ays of seemin gl y sen sel ess c har ac ter gr oupin gs.
B ec ker l isten ed, spel l b oun d. The teac her had b ec ome the studen t. To en c ode, Susan had simpl y r epl ac ed eac h l etter of her message with the l etter pr ec edin g it in the al phab et. He q uic kl y shif ted the r emain in g l etter s. He n ev er imagin ed f our l ittl e syl l ab l es c oul d make him so happy: IM. Susan r ead it an d b eamed. B ec ker had to l augh; he was thir ty-f iv e year s-ol d, an d his hear t was doin g b ac k f l ips.
Her del ic ate Eur opean f eatur es an d sof t b r own eyes r emin ded him of an ad f or Est e L auder. D av id of ten j oked that she was the f ir st swimsuit model he d ev er met with a doc tor ate in appl ied mathematic s an d n umb er theor y. A s the mon ths passed, they b oth star ted to suspec t they d f oun d somethin g that c oul d l ast a l if etime. They d b een together al most two year s when , out of the b l ue, D av id pr oposed to her.
I t was on a weeken d tr ip to the Smoky M oun tain s. That s what she l ov ed ab out himhe was so spon tan eous. She kissed him l on g an d har d. He took her in his ar ms an d sl ipped of f her n ightgown. That magic al ev en in g had b een six mon ths agob ef or e D av id s un ex pec ted pr omotion to c hair man of the M oder n L an guage D epar tmen t. Their r el ation ship had b een in a down hil l sl ide ev er sin c e.
The c r ypto door b eeped on c e, wakin g Susan f r om her depr essin g r ev er ie. The door had r otated past its f ul l y open position an d woul d b e c l osed again in f iv e sec on ds, hav in g made a c ompl ete 3 6 0 -degr ee r otation. Susan gather ed her thoughts an d stepped thr ough the open in g. A c omputer made n ote of her en tr y.
A l though she had pr ac tic al l y l iv ed in C r ypto sin c e its c ompl etion thr ee year s ago, the sight of it stil l amaz ed her. The main r oom was an en or mous c ir c ul ar c hamb er that r ose f iv e stor ies. The P l ex igl as c upol a was emb edded with a pol yc ar b on ate mesha pr otec tiv e web c apab l e of withstan din g a two-megaton b l ast.
Tin y par tic l es of dust dr if ted upwar d in wide un suspec tin g spir al s c aptiv es of the dome s power f ul deion iz in g system. The r oom s sl opin g sides ar c hed b r oadl y at the top an d then b ec ame al most v er tic al as they appr oac hed eye l ev el.
Then they b ec ame sub tl y tr an sl uc en t an d gr aduated to an opaq ue b l ac k as they r eac hed the f l oor a shimmer in g ex pan se of pol ished b l ac k til e that shon e with an eer ie l uster , giv in g on e the un settl in g sen sation that the f l oor was tr an spar en t. P ushin g thr ough the c en ter of the f l oor l ike the tip of a c ol ossal tor pedo was the mac hin e f or whic h the dome had b een b uil t.
I ts sec r et was l oc ked in a c er amic sil o that wen t six stor ies str aight down a r oc ketl ike hul l sur r oun ded b y a win din g maz e of c atwal ks, c ab l es, an d hissin g ex haust f r om the f r eon c ool in g system. The power gen er ator s at the b ottom dr on ed in a per petual l ow-f r eq uen c y hum that gav e the ac oustic s in C r ypto a dead, ghostl ike q ual ity. M or e spec if ic al l y, the ar r iv al of E-mail. C r imin al s, ter r or ists, an d spies had gr own tir ed of hav in g their phon es tapped an d immediatel y emb r ac ed this n ew mean s of gl ob al c ommun ic ation.
E-mail had the sec ur ity of c on v en tion al mail an d the speed of the tel ephon e. Sin c e the tr an sf er s tr av el ed thr ough un der gr oun d f ib er -optic l in es an d wer e n ev er tr an smitted in to the air wav es, they wer e en tir el y in ter c ept-pr oof at l east that was the per c eption.
The I n ter n et was n ot the n ew home c omputer r ev el ation that most b el iev ed. I t had b een c r eated b y the D epar tmen t of D ef en se thr ee dec ades ear l ier an en or mous n etwor k of c omputer s design ed to pr ov ide sec ur e gov er n men t c ommun ic ation in the ev en t of n uc l ear war. O f c our se, when the c omputer user s of the wor l d f oun d out the U.
A c r oss the gl ob e, en tr epr en eur ial pr ogr ammer s b egan wor kin g on a way to keep E-mail mor e sec ur e. I t c on sisted of easy-to-use, home-c omputer sof twar e that sc r amb l ed per son al E-mail messages in suc h a way that they wer e total l y un r eadab l e. A user c oul d wr ite a l etter an d r un it thr ough the en c r yption sof twar e, an d the tex t woul d c ome out the other side l ookin g l ike r an dom n on sen setotal l y il l egib l ea c ode.
The on l y way to un sc r amb l e the message was to en ter the sen der s pass-keya sec r et ser ies of c har ac ter s that f un c tion ed muc h l ike a P I N n umb er at an automatic tel l er. The pass-keys wer e gen er al l y q uite l on g an d c ompl ex ; they c ar r ied al l the in f or mation n ec essar y to in str uc t the en c r yption al gor ithm ex ac tl y what mathematic al oper ation s to f ol l ow tor e-c r eate the or igin al message.
Ev en if the tr an smission was in ter c epted, on l y those who wer e giv en the key c oul d ev er dec ipher it. The c odes they wer e f ac in g wer e n o l on ger simpl e sub stitution c ipher s c r ac kab l e with pen c il an d gr aph paper they wer e c omputer -gen er ated hash f un c tion s that empl oyed c haos theor y an d mul tipl e symb ol ic al phab ets to sc r amb l e messages in to seemin gl y hopel ess r an domn ess.
A t f ir st, the pass-keys b ein g used wer e shor t en ough f or the N SA s c omputer s to guess. Soon er or l ater the c omputer hit the c or r ec t seq uen c e. This method of tr ial -an d-er r or guessin g was kn own as b r ute f or c e attac k. I t was time-c on sumin g b ut mathematic al l y guar an teed to wor k. A s the wor l d got wise to the power of b r ute-f or c e c ode-b r eakin g, the pass-keys star ted gettin g l on ger an d l on ger.
The c omputer time n eeded to guess the c or r ec t key gr ew f r om weeks to mon ths an d f in al l y to year s. C or r ec tl y guessin g a pass-key was as mathematic al l y un l ikel y as c hoosin g the c or r ec t gr ain of san d f r om a thr ee-mil e b eac h. B y the time the c omputer guessed the key an d b r oke the c ode, the c on ten ts of the message woul d b e ir r el ev an t.
C aught in a v ir tual in tel l igen c e b l ac kout, the N SA passed a top-sec r et dir ec tiv e that was en dor sed b y the P r esiden t of the U n ited States. D espite the opin ion of man y en gin eer s that the n ewl y pr oposed c ode-b r eakin g c omputer was impossib l e to b uil d, the N SA l iv ed b y its motto: Ev er ythin g is possib l e. The impossib l e j ust takes l on ger. The l ast of the thr ee mil l ion , stamp-siz e pr oc essor s was han d-sol der ed in pl ac e, the f in al in ter n al pr ogr ammin g was f in ished, an d the c er amic shel l was wel ded shut.
I ts thr ee mil l ion pr oc essor s woul d al l wor k in par al l el c oun tin g upwar d at b l in din g speed, tr yin g ev er y n ew per mutation as they wen t. This mul tib il l ion -dol l ar master piec e woul d use the power of par al l el pr oc essin g as wel l as some highl y c l assif ied adv an c es in c l ear tex t assessmen t to guess pass-keys an d b r eak c odes. I t woul d der iv e its power n ot on l y f r om its stagger in g n umb er of pr oc essor s b ut al so f r om n ew adv an c es in q uan tum c omputin gan emer gin g tec hn ol ogy that al l owed in f or mation to b e stor ed as q uan tum-mec han ic al states r ather than sol el y as b in ar y data.
The q uestion was how power f ul. The an swer c ame twel v e min utes l ater. TR A N SL TR had j ust l oc ated a six ty-f our -c har ac ter key in a l ittl e ov er ten min utes, al most a mil l ion times f aster than the two dec ades it woul d hav e taken the N SA s sec on d-f astest c omputer. L ed b y the deputy dir ec tor of oper ation s, C omman der Tr ev or J.
I n the in ter est of keepin g their suc c ess a sec r et, C omman der Str athmor e immediatel y l eaked in f or mation that the pr oj ec t had b een a c ompl ete f ail ur e. W ith wor d on the str eet that c omputer -en c r ypted c odes wer e en tir el y un b r eakab l e ev en b y the al l -power f ul N SA the sec r ets pour ed in. D r ug l or ds, ter r or ists, an d emb ez z l er s al ikewear y of hav in g their c el l ul ar phon e tr an smission s in ter c eptedwer e tur n in g to the ex c itin g n ew medium of en c r ypted E-mail f or in stan tan eous gl ob al c ommun ic ation s.
I n tel l igen c e gather in g had n ev er b een easier. To make their c har ade of in c ompeten c e c ompl ete, the N SA l ob b ied f ier c el y again st al l n ew c omputer en c r yption sof twar e, in sistin g it c r ippl ed them an d made it impossib l e f or l awmaker s to c atc h an d pr osec ute the c r imin al s.
C iv il r ights gr oups r ej oic ed, in sistin g the N SA shoul dn t b e r eadin g their mail an yway. En c r yption sof twar e kept r ol l in g of f the pr esses.
The en tir e el ec tr on ic gl ob al c ommun ity had b een f ool ed or so it seemed. Susan won der ed as she c r ossed the deser ted C r ypto f l oor.
Some emerg enc y. A l though most N SA depar tmen ts wer e f ul l y staf f ed sev en days a week, C r ypto was gen er al l y q uiet on Satur days. C r yptogr aphic mathematic ian s wer e b y n atur e high-str un g wor kahol ic s, an d ther e ex isted an un wr itten r ul e that they take Satur days of f ex c ept in emer gen c ies.
The soun d of the gen er ator s eight stor ies b el ow soun ded oddl y omin ous today. I t was l ike b ein g tr apped al on e in a c age with some gr an d, f utur istic b east. She q uic kl y made her way towar d the c omman der s of f ic e. Str athmor e s gl ass-wal l ed wor kstation , n ic kn amed the f ishb owl f or its appear an c e when the dr apes wer e open , stood high atop a set of c atwal k stair s on the b ac k wal l of C r ypto. A s Susan c l imb ed the gr ated steps, she gaz ed upwar d at Str athmor e s thic k, oak door.
B ehin d that door sat on e of the gr eatest men she d ev er met. C omman der Str athmor e, the f if ty-six -year -ol d deputy dir ec tor of oper ation s, was l ike a f ather to Susan. He was the on e who d hir ed her , an d he was the on e who d made the N SA her home. W hen Susan j oin ed the N SA ov er a dec ade ago, Str athmor e was headin g the C r ypto D ev el opmen t D iv ision a tr ain in g gr oun d f or n ew c r yptogr apher sn ew mal e c r yptogr apher s.
A l though Str athmor e n ev er tol er ated the haz in g of an yon e, he was espec ial l y pr otec tiv e of his sol e f emal e staf f memb er. W hen ac c used of f av or itism, he simpl y r epl ied with the tr uth: Susan F l etc her was on e of the b r ightest youn g r ec r uits he d ev er seen , an d he had n o in ten tion of l osin g her to sex ual har assmen t. O n e of the c r yptogr apher s f ool ishl y dec ided to test Str athmor e s r esol v e.
O n e mor n in g dur in g her f ir st year , Susan dr opped b y the n ew c r yptogr apher s l oun ge to get some paper wor k. She al most f ain ted in emb ar r assmen t. A s it tur n ed out, on e of the c r yptogr apher s had digital l y sc an n ed a photo f r om a por n ogr aphic magaz in e an d edited Susan s head on to someon e el se s b ody.
U n f or tun atel y f or the c r yptogr apher r espon sib l e, C omman der Str athmor e did n ot f in d the stun t ev en r emotel y amusin g. F r om that day on , n ob ody messed with her ; Susan F l etc her was C omman der Str athmor e s gol den gir l. B ut Str athmor e s youn g c r yptogr apher s wer e n ot the on l y on es who l ear n ed to r espec t him; ear l y in his c ar eer Str athmor e made his pr esen c e kn own to his super ior s b y pr oposin g a n umb er of un or thodox an d highl y suc c essf ul in tel l igen c e oper ation s.
A s he mov ed up the r an ks, Tr ev or Str athmor e b ec ame kn own f or his c ogen t, r educ tiv e an al yses. He seemed to hav e an un c an n y ab il ity to see past the mor al per pl ex ities sur r oun din g the N SA s dif f ic ul t dec ision s an d to ac t without r emor se in the in ter est of the c ommon good.
He an d Str athmor e sel dom saw eye to eye, an d when they met, it was l ike the c l ash of the titan s. F on tain e was a gian t amon g gian ts, b ut Str athmor e didn t seem to c ar e. He ar gued his ideas to the dir ec tor with al l the r estr ain t of an impassion ed b ox er. N ot ev en the P r esiden t of the U n ited States dar ed c hal l en ge F on tain e the way Str athmor e did. O n e n eeded pol itic al immun ity to do thator , in Str athmor e s c ase, pol itic al in dif f er en c e.
The door swun g open , an d the c omman der wav ed her in. Than ks f or c omin g, Susan. I owe you on e. She smil ed as she sat opposite his desk. Str athmor e was a r an gy, thic k-f l eshed man whose muted f eatur es somehow disguised his har d-n osed ef f ic ien c y an d deman d f or per f ec tion.
His gr ay eyes usual l y suggested a c on f iden c e an d disc r etion b or n f r om ex per ien c e, b ut today they l ooked wil d an d un settl ed. Y ou l ook b eat, Susan said.
Str athmor e sighed. I l l say, she thought. Str athmor e l ooked as b ad as Susan had ev er seen him. His thin n in g gr ay hair was dishev el ed, an d ev en in the r oom s c r isp air -c on dition in g, his f or ehead was b eaded with sweat. He l ooked l ike he d sl ept in his suit.
He was sittin g b ehin d a moder n desk with two r ec essed keypads an d a c omputer mon itor at on e en d. I t was str ewn with c omputer pr in touts an d l ooked l ike some sor t of al ien c oc kpit pr opped ther e in the c en ter of his c ur tain ed c hamb er. Tough week? Str athmor e shr ugged. The usual. Susan c huc kl ed.
The EF F , or El ec tr on ic s F r on tier F oun dation , was a wor l dwide c oal ition of c omputer user s who had f oun ded a power f ul c iv il l ib er ties c oal ition aimed at suppor tin g f r ee speec h on -l in e an d educ atin g other s to the r eal ities an d dan ger s of l iv in g in an el ec tr on ic wor l d.
They wer e c on stan tl y l ob b yin g again st what they c al l ed the O r wel l ian eav esdr oppin g c apab il ities of gov er n men t agen c iespar tic ul ar l y the N SA. The EF F was a per petual thor n in Str athmor e s side. Soun ds l ike b usin ess as usual , she said. So what s this b ig emer gen c y you got me out of the tub f or? Str athmor e sat a momen t, ab sen tl y f in ger in g the c omputer tr ac kb al l emb edded in his desktop. W hat s the l on gest.
The q uestion c aught Susan en tir el y of f guar d. I t seemed mean in gl ess. W el l She hesitated. Str athmor e gr un ted. A n hour , huh? Susan c oul dn t imagin e what Str athmor e was gettin g at. I l l egal l oopin g f un c tion s, c el l ul ar automata, the wor ks.
How l on g? Thr ee hour s. Str athmor e ar c hed his eyeb r ows. Thr ee hour s? That l on g? Susan f r own ed, mil dl y of f en ded. Her j ob f or the l ast thr ee year s had b een to f in e-tun e the most sec r et c omputer in the wor l d; most of the pr ogr ammin g that made TR A N SL TR so f ast was her s.
A mil l ion -b it key was har dl y a r eal istic sc en ar io. O kay, Str athmor e said. Susan n odded. Str athmor e paused as if af r aid to say somethin g he might r egr et. Susan waited. M or e than thr ee hour s? Str athmor e n odded. A n ew diagn ostic? Somethin g f r om the Sys-Sec D epar tmen t? Str athmor e shook his head. A n outside f il e? I wish. I q ueued it l ast n ight ar oun d el ev en thir ty. Susan s j aw dr opped. She l ooked at her watc h an d then b ac k at Str athmor e.
Str athmor e l ean ed f or war d an d r otated his mon itor towar d Susan. Susan star ed in amaz emen t. She kn ew the c omputer s pr oc essor s audition ed thir ty mil l ion keys per sec on don e hun dr ed b il l ion per hour. I t was ab sol ute in san ity. I t s impossib l e! B ut the pass-key must b e huge! Stan dar d c ommer c ial al gor ithm. I m guessin g a six ty-f our -b it key. She kn ew f r om ex per ien c e that it c oul d l oc ate a six ty-f our -b it key in un der ten min utes.
Ther e s got to b e some ex pl an ation. Ther e is. Susan l ooked un easy. Just hear me out. Susan was f l ab b er gasted. U sual l y the c l ear tex t was del iv er ed to Str athmor e s pr in tout modul e within min utes. She gl an c ed at the high-speed pr in ter b ehin d his desk. I t was empty. Susan , Str athmor e said q uietl y. He c hewed his l ip. Str athmor e paused, as if the wor ds wer e har d f or him to say. This c ode is un b r eakab l e. Susan star ed at him an d al most l aughed.
W hat was T H A T su pposed to mean? I b eg your par don? Susan c oul dn t b el iev e the wor d had b een utter ed b y a man with twen ty-sev en year s of c ode an al ysis ex per ien c e.
The pr in c ipl e c l ear l y stated that if a c omputer tr ied en ough keys, it was mathematic al l y guar an teed to f in d the r ight on e. A c ode s sec ur ity was n ot that its pass-key was un f in dab l e b ut r ather that most peopl e didn t hav e the time or eq uipmen t to tr y. Susan eyed him askan c e. A n un b r eakab l e c ode is a mathematic al impossib il ity!
He kn ows that! Str athmor e r an a han d ac r oss his sweaty sc al p. N ow Susan was ev en mor e doub tf ul. En c r yption al gor ithms wer e j ust mathematic al f or mul as, r ec ipes f or sc r amb l in g tex t in to c ode. M athematic ian s an d pr ogr ammer s c r eated n ew al gor ithms ev er y day. I don t un der stan d, she ar gued.
Str athmor e s r epl y had the c on tr ol l ed patien c e of a good teac her. He paused a l on g momen t. U n l ess Susan wan ted to speak, b ut it was c l ear Str athmor e was ab out to dr op his b omb. U nl ess what? U n l ess the c omputer doesn t kn ow when it s b r oken the c ode.
Susan al most f el l out of her c hair. U n l ess the c omputer guesses the c or r ec t key b ut j ust keeps guessin g b ec ause it doesn t r eal iz e it f oun d the r ight key. Str athmor e l ooked b l eak. I thin k this al gor ithm has got a r otatin g c l ear tex t. Susan gaped. B ec ause b r ute-f or c e c omputer s b r oke c odes b y ex amin in g c l ear tex t f or iden tif iab l e wor d patter n s, Har n e pr oposed an en c r yption al gor ithm that, in addition to en c r yptin g, shif ted dec r ypted c l ear tex t ov er a time v ar ian t.
I n theor y, the per petual mutation woul d en sur e that the attac kin g c omputer woul d n ev er l oc ate r ec ogn iz ab l e wor d patter n s an d thus n ev er kn ow when it had f oun d the pr oper key.
The c on c ept was somewhat l ike the idea of c ol on iz in g M ar sf athomab l e on an in tel l ec tual l ev el , b ut, at pr esen t, wel l b eyon d human ab il ity. W her e did you get this thin g? The c omman der s r espon se was sl ow. A pub l ic sec tor pr ogr ammer wr ote it. W hat? Susan c ol l apsed b ac k in her c hair. W e v e got the b est pr ogr ammer s in the wor l d down stair s! Susan wasn t l isten in g. Str athmor e eyed her ster n l y. O n e of the most b r il l ian t c r yptogr aphic min ds of al l time wr ote this al gor ithm.
Susan was mor e doub tf ul than ev er ; the most b r il l ian t c r yptogr aphic min ds of al l time wer e in her depar tmen t, an d she c er tain l y woul d hav e hear d ab out an al gor ithm l ike this. I m sur e you c an guess. Str athmor e said. A l most c aused an in tel l igen c e n ightmar e. I depor ted him. O h my G od Str athmor e n odded. B -b ut Susan stammer ed. I thought he was b l uf f in g. He did. The ul timate un b r eakab l e c ode-wr iter. Susan was sil en t a l on g momen t.
B ut that mean s Str athmor e l ooked her dead in the eye. Hir oshima, 8 : 1 5 a. A sen sel ess displ ay of power b y a c oun tr y that had al r eady won the war. Tan kado had ac c epted al l that. B ut what he c oul d n ev er ac c ept was that the b omb had r ob b ed him of ev er kn owin g his mother. She had died giv in g b ir th to himc ompl ic ation s b r ought on b y the r adiation poison in g she d suf f er ed so man y year s ear l ier.
I t was ther e that she b ec ame on e of the hib akushathe r adiated peopl e. En sei s f ather n ev er ev en saw his son. En sei Tan kado was pl ac ed in a f oster home. Ev er y n ight the youn g Tan kado star ed down at the twisted f in ger s hol din g his dar uma wish-dol l an d swor e he d hav e r ev en ger ev en ge again st the c oun tr y that had stol en his mother an d shamed his f ather in to ab an don in g him.
W hat he didn t kn ow was that destin y was ab out to in ter v en e. I n F eb r uar y of En sei s twel f th year , a c omputer man uf ac tur er in Tokyo c al l ed his f oster f amil y an d asked if their c r ippl ed c hil d might take par t in a test gr oup f or a n ew keyb oar d they d dev el oped f or han dic apped c hil dr en.
His f amil y agr eed. A l though En sei Tan kado had n ev er seen a c omputer , it seemed he in stin c tiv el y kn ew how to use it. The c omputer open ed wor l ds he had n ev er imagin ed possib l e. Soon En sei Tan kado was kn own ac r oss Tokyo as f u g u sha k i sai the c r ippl ed gen ius.
Tan kado ev en tual l y r ead ab out P ear l Har b or an d Japan ese war c r imes. His hatr ed of A mer ic a sl owl y f aded. He b ec ame a dev out B uddhist. He f or got his c hil dhood v ow of r ev en ge; f or giv en ess was the on l y path to en l ighten men t. B y the time he was twen ty, En sei Tan kado was somewhat of an un der gr oun d c ul t f igur e amon g pr ogr ammer s. Tan kado j umped at the c han c e. He r ode the n ew wav e of pub l ic -key en c r yption. He wr ote al gor ithms an d made a f or tun e.
L ike man y of the top author s of en c r yption al gor ithms, Tan kado was c our ted b y the N SA. The ir on y was n ot l ost on himthe oppor tun ity to wor k in the hear t of the gov er n men t in a c oun tr y he had on c e v owed to hate. He dec ided to go on the in ter v iew. W hatev er doub ts he had disappear ed when he met C omman der Str athmor e. They tal ked f r an kl y ab out Tan kado s b ac kgr oun d, the poten tial hostil ity he might f eel towar d the U.
Tan kado took a pol ygr aph test an d un der wen t f iv e weeks of r igor ous psyc hol ogic al pr of il es. He passed them al l. His hatr ed had b een r epl ac ed b y his dev otion to B uddha. F our mon ths l ater En sei Tan kado wen t to wor k in the C r yptogr aphy. D epar tmen t of the N ation al Sec ur ity A gen c y. The other c r yptogr apher s r ev er ed him. He was b r il l ian tas c r eativ e a pr ogr ammer as an y of them had ev er seen.
He was kin d an d hon est, q uiet, an d of impec c ab l e ethic s. M or al in tegr ity was of par amoun t impor tan c e to him. I t was f or this r eason that his dismissal f r om the N SA an d sub seq uen t depor tation had b een suc h a shoc k.
Tan kado, l ike the r est of the C r ypto staf f , had b een wor kin g on the TR A N SL TR pr oj ec t with the un der stan din g that if suc c essf ul , it woul d b e used to dec ipher E-mail on l y in c ases pr e-appr ov ed b y the Justic e D epar tmen t. This woul d pr ev en t the N SA f r om l isten in g in disc r imin atel y to the per son al c ommun ic ation s of l aw-ab idin g c itiz en s ar oun d the gl ob e. En sei Tan kado was outr aged.
This mean t the N SA woul d, in ef f ec t, b e ab l e to open ev er yon e s mail an d r eseal it without their kn owin g. Str athmor e attempted to make Tan kado see TR A N SL TR as a l aw-en f or c emen t dev ic e, b ut it was n o use; Tan kado was adaman t that it c on stituted a gr oss v iol ation of human r ights. Tan kado stood poised to shoc k the wor l d with his stor y of a sec r et mac hin e c apab l e of ex posin g c omputer user s ar oun d the wor l d to un thin kab l e gov er n men t tr eac her y.
Tan kado s c aptur e an d depor tation , widel y pub l ic iz ed amon g on -l in e n ewsgr oups, had b een an un f or tun ate pub l ic shamin g. En sei Tan kado was shun n ed b y the gl ob al c omputer c ommun ityn ob ody tr usted a c r ippl e ac c used of spyin g, par tic ul ar l y when he was tr yin g to b uy his f r eedom with ab sur d al l egation s ab out a U.
The oddest thin g of al l was that Tan kado seemed to un der stan d; it was al l par t of the in tel l igen c e game. A s sec ur ity esc or ted him away, Tan kado spoke his f in al wor ds to Str athmor e with a c hil l in g c al m. Someday I l l see to it we c an. Susan s min d was r ac in gE nsei T ank ado wrote a prog ram that c reates u nb reak ab l e c odes! She c oul d b ar el y gr asp the thought.
D igital F or tr ess, Str athmor e said. I t s the ul timate c oun ter in tel l igen c e weapon. B ut Susan s thoughts wer e f ar r emov ed f r om the pol itic al impl ic ation s of D igital F or tr ess.
She was stil l str uggl in g to c ompr ehen d its ex isten c e. I f this c ode gets out, she whisper ed, c r yptogr aphy wil l b ec ome a dead sc ien c e. That s the l east of our pr ob l ems. C an we pay Tan kado of f? Str athmor e l aughed. D o you kn ow what this thin g is wor th? The EF F wil l hav e f iel d day, Susan said, pal e.
The EF F doesn t hav e the f ir st c l ue ab out what we do her e, Str athmor e r ail ed in disgust. I f they kn ew how man y ter r or ist attac ks we v e stopped b ec ause we c an dec r ypt c odes, they d c han ge their tun e.
TR A N SL TR had hel ped f oil doz en s of attac ks, b ut the in f or mation was highl y c l assif ied an d woul d n ev er b e r el eased. N uc l ear attac k, howev er , was n ot the on l y thr eat.
A n an ti-gov er n men t or gan iz ation had dev ised a pl an , c ode-n amed Sher wood F or est. I t tar geted the N ew Y or k Stoc k Ex c han ge with the in ten tion of r edistr ib utin g the weal th. O v er the c our se of six days, memb er s of the gr oup pl ac ed twen ty-sev en n on ex pl osiv e f l ux pods in the b uil din gs sur r oun din g the Ex c han ge.
These dev ic es, when deton ated, c r eate a power f ul b l ast of magn etism. The simul tan eous disc har ge of these c ar ef ul l y pl ac ed pods woul d c r eate a magn etic f iel d so power f ul that al l magn etic media in the Stoc k Ex c han ge woul d b e er asedc omputer har d dr iv es, massiv e R O M stor age b an ks, tape b ac kups, an d ev en f l oppy disks. A l l r ec or ds of who own ed what woul d disin tegr ate per man en tl y. B ec ause pin poin t timin g was n ec essar y f or simul tan eous deton ation of the dev ic es, the f l ux pods wer e in ter c on n ec ted ov er I n ter n et tel ephon e l in es.
D ur in g the two-day c oun tdown , the pods in ter n al c l oc ks ex c han ged en dl ess str eams of en c r ypted syn c hr on iz ation data. The N SA in ter c epted the data-pul ses as a n etwor k an omal y b ut. B ut af ter TR A N SL TR dec r ypted the data str eams, an al ysts immediatel y r ec ogn iz ed the seq uen c e as a n etwor k-syn c hr on iz ed c oun tdown. She eyed the R un -M on itor. C r ypto woul d b e r el egated to b r eakin g l ess than two c odes a day.
Tan kado c al l ed me l ast mon th, Str athmor e said, in ter r uptin g Susan s thoughts. Susan l ooked up. Tan kado c al l ed you? He n odded. To war n me. W arn you? He hates you. B ut why woul d he tel l you ab out it? Susan deman ded. I t was b l ac kmail. O f c our se, she said, amaz ed.
He wan ted you to c l ear his n ame. NSA created a very difficult descriptor that can break any famous and the most complicated code in the world. One day this system was broken by one unbreakable encryption algorithm. What secret is hiding this code? Susan Fletcher, a smart and beautiful mathematician, has to find what is going on. This amazing book is full of mystery and strange events. The world of codes, encrypted machines and the best scientists is represented in Digital Fortress by Dan Brown.
The written style by Brown is perfect, he definitely knows what he writes about, so t Download links for: Digital Fortress Advertising. Online stores:.
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