IT-Sicherheit IT SICHERHEIT

Transcription

1 IT-Schh IT SICHERHEIT IS

2 NEU bwti : I h d v dul l FLA T R A T Ezum W ss 1J a h W s s o v a v s U h m u s G s c h ä f s f l d " S l u d w c k l mb c h u b a E g. D a z us l l S s c h T h m p a k, b s h d a o a l a u s WT I D a b a k u dw Q u l l f ü z u ä c h s J a h z u s a mm. u mf a g c h s 1 [ a b /1J a h ] 6Mo a W s s P o j k v a wo l c h, d m s " S s df ü E w c k l u g u R k u p a o s b ms g h. u md ( P o j k l a u f z : 1 / 2J a h ). S v s c h a ff s c hm m Ü b b l c k ü b T h m p a k v o WT I d S a dd T c h k. 2 [ a b344, 43 /6Moa ] 1Wo c h W s s W s s s c h a f l u d " S s d mü s s k u z f s g, b Wo c h, f ü F a c h v a s a l u g P ä s a o s l l. M a k u l l a o a l F o s c h u g s g b s s a u s I h mt h m p a k v o WT I c h S I h P ä s a o a. " [ a b5, 63 /Woc h] 1 1J a ht c h kudma a gm/26moa T E Mo v Pa k -fakfu.d

3 TcSca Joual > Edoal Lb Ls ud Ls, Fü Igu ud Tchk s Loado da Vc ( ) k Ubka. Als Efd, Kosuku, Mahmak, Maschbau, Mal, Bldhau ud Zch Pso sad m s Bldug ud sm Wss schlch w üb dm Duchsch s Zgoss. Vl Ewcklug, w Fallschm, Foh od hmodyamsch Masch, gh auf d Üblgug ud Skzz vo da Vc zuück. Zahlch s Zchug, Mauskp ud Mal sd och hu m sg Ifomaosspch Wold Wd Wb zu fd, ud g sd auch och m Ogal hal, w das bühm Gmäld Moa Lsa. Uvsalglh, w da Vc, ko das zu s Z vohad Wss och übblck. B d hug Wsssxploso s ds auch fü d göß Gs ch mh möglch. I dm sädg wachsd Ifomaosgbg ha ma d göß Müh, d wklch bauchba Ifomao zu fd. Hu bsh d Lösug d sysmasch Slko ud Rduko sow d übschlch Ifomaosaufbug ud dasllug, kuz: m Maagm vo Ifomao ud Wss. Us Lauachwsdabak ud d daaus abgl TcSca- Joual ls Bag zum Wsssmaagm. Aus wlw schd Fachzschf ud aoal Kofz wd d Bäg kompm Fom Dabak suku abglg ud m m saub suku ud kooll Fachvokabula bschb. Ds möglch d pukgau Rchch ud hmasch Büdlug fü us TcSca-Joual, wob d Rhfolg d Bäg d Joual ch blbg sod ach Rlvaz ud Vöfflchugsdaum folg. Qualav hochwg Ifomao sd owdg ud wchg Rohsoff fü kav Pozss, d wdum maßgblch d uhmsch Efolg bfluss. Loado da Vc ha das Wss s Z sm Kopf gspch. W lf Ih akulls Wss kompm ud ffz p TcSca od Dabak, gaz ach Ihm Bdaf. So kö S sch gaz auf das Kav koz. Ich wüsch Ih, dass sch d volgd u TcSca-Ausgab auch d fü S gal Ifomao bfd. Mafd Jaksch Vosad d WTI-Fakfu G

4 Ihalsvzchs Nzwkschh... 5 Paccal RSA-PAKE fo Low-Pow Dvc Imbalacd Wlss Nwoks... 5 Sadads fü vull Kafwk. Idusfoum VHPady A soluo o h GTS-basd slcv jammg aack o IEEE woks Aomaly basd uso dco WLAN usg dscmao algohm combd wh Nav Baysa classf Quu lgh ad mobly awa oug poocol fo mobl ad hoc wok Dsbug CMS Daa bw h Floda T2 ad T3 Cs usg Lus ad Xood-fs... 6 Rsach o Achcu Suvvably of Wlss Nwoks Wlss Nwok Scuy Poblms ad Copg Sags Rsach o compu wlss wok ad fomao scuy... 7 Wlss wok codg wh physcal-lay scuy Applcao Daa Fuso of I of Thgs Basd o h KL Dsac of Rpuao Modl... 7 Paalll mul-cp poxy -cypo fo scu goup commucao wlss woks... 8 A scu Hybd P2P Nwok mobl commucao dvc dsg... 8 Wlss Algohms, Sysms ad Applcaos. Pocdgs: LNCS 8491, Hab, Cha, Ju Fa Pack Dsbuo o Mul-facd Mobl Rou fo Mobl Nwoks Daa allocao chqus fo mobl sso woks... 9 Tavl Rous Off a Scu W-F Nwok Almos Aywh Chal-Paam-Basd Ecypo Ky Gao Algohm Ad Pfomac Aalyss Fo Wlss Rlay Nwoks Agas Eavsdoppg Hogous Spaccaf Nwoks: Wlss Nwok Tchology Assssm Combag Isd Aacks IEEE Wlss Nwoks wh Boadcas Ecypo Effc Pvacy-Psvg Auhcao Wlss Mobl Nwoks Mmzao of Pow Cosumpo Mobl Ad hoc Nwoks Dsg ad Implmao of Scuy Pfomac Ts Sysm fo Wlss Local Aa Nwok Th ol xamao sysm of dsac ducao A scu commucao ov wlss voms by usg a daa coco co Kypogaphsch Vfah O h Fasbly of a Csoshp Rssa Dcalzd Nam Sysm A Gal Famwok fo Goup Auhcao ad Ky Exchag Poocols...12 Pvacy-Psvg Publsh/Subscb: Effc Poocols a Dsbud Modl Quafyg ad Masug Aoymy Idus 4.0 auf sch Wg: Idusll Sysm wkugsvoll schüz A Smulao of Docum Dco Mhods ad Rducg Fals Posvs fo Pva Sam Sachg SoK: Lssos Lad fom SSL/TLS Aacks Pfomac Evaluao of Pmvs fo Pvacy-Ehacg Cypogaphy o Cu Sma-Cads ad Sma- Phos Impovm o a Mul-Chal Boadcas Ecypo Schm Opcal mag cypo va vs gg of a modfd amplud-phas val-basd aack O h Effccy of Mahmacs Iuso Dco: Th NEopy Cas Compuaoal Soudss of Symbolc Bld Sgaus ud Acv Aack Dyamc Suvllac: A Cas Sudy wh Eo Emal Daa S Scuy of Dvc-Idpd Quaum Ky Dsbuo Poocols Lghwgh Cypogaphy fo Embddd Sysms - A Compaav Aalyss Applcao of Radom Amplud-Phas Opcal Ecypo Basd o Nomal Spckl Pa Ifc Dgal Wamakg A Scu Ky Maagm Ifac wh Asymmc Cypogaphy Vaulch kommuz m OTR Aoymous auhcao poocol basd o llpc cuv Dff-Hllma fo wlss accss woks Wh-Box Scuy Noos fo Symmc Ecypo Schms Gü vschlüssl - Mssug ds Egvbauchs vo Vschlüsslugsalgohm Exdg ad Applyg a Famwok fo h Cypogaphc Vfcao of Java Pogams A Gal Thshold Sgau Schm Basd o Ellpc Cuv A Povably Scu E-Cash Schm wh Loss-Tacg A ovl mag sgaogaphy schm wh hgh mbddg capacy ad uabl vsual mag qualy basd o a gc algohm Aalyss of Ecodg Mhods Cobug o h Payload of Sgaogaphy Mulpl Wamaks Algohm fo Mdcal Imag Basd o Aold Scamblg ad DFT Fsplavschlüsslug m Yubky - vwal m LOTP D off Vodü. Tlfogspäch ud Mssagg-Ds m Qalk vschlüssl Zo-Colao La Cypaalyss wh FFT ad Impovd Aacks o ISO Sadads Camlla ad CLEFIA Vco pow mulpl-paam facoal Fou asfom of mag cypo algohm AEGIS: A Fas Auhcad Ecypo Algohm Th LOCAL Aack: Cypaalyss of h Auhcad Ecypo Schm ALE Two Aacks o a Wh-Box AES Implmao IT-Schh

5 Popagao modl of smapho woms basd o sm-makov pocss ad socal laoshp gaph Fagmao Cosdd Lakg: Po Ifc fo DNS Posog Mobl scuy: dsgg a w famwok lmg malwa spad h mobl cloud compug Towads Daa Cofdaly ad Poably Cloud Soag Expms o dco of Dal of Svc aacks usg Nav Baysa classf Toka Acadmc Cloud: a xpmal a ad -suoal cloud fasucu amog aoal uvss h Toka Rgo of Japa A Novl Achcu fo Slf-Popagag Malcous Sofwa wh Cloud Ifasucus Assssg h Impac of Fwalls ad Daabas Poxs o SQL Ijco Tsg...24 Explog IPv6 oug hads yp 0/2 dff IP wlss woks: aack scao & aalyss Applcao of adapv splg ad slco classf o h spam flg poblm Usg Mda Idpd Hadov o Suppo PMIPv6 I-doma Mobly Basd Vhcula Nwoks Rsach o auomac malwa collcg sysm basd o wb/socal wok svc Socal woks IM foscs: cypo aalyss Opmzg offl accss o socal wok co o mobl dvcs Us of Socal Nwokg Ss by Acadmc Lbaas Sx Slcd Sas of Nga PLAM: A pvacy-psvg famwok fo local-aa mobl socal woks Poco Agas Wb 2.0 Cl-Sd Wb Aacks Usg Ifomao Flow Cool A pspcv of voluo af fv yas: a lag-scal sudy of Wb spam voluo Socal Ifomao Lakag: Effcs of Awass ad P Pssu o Us Bhavo Aalyss of Faus Slco ad Mach Lag Classf Adod Malwa Dco IEEE 4h Iaoal Cofc o Elcocs Ifomao ad Emgcy Commucao (ICEIEC), Bjg, Cha, Nov Towads Halhca Daa Scuy Cloud Compug IEEE INFOCOM IEEE Cofc o Compu Commucaos, Tooo, ON, Caada, 27 Apl-2 May Vual mach mo dco mhod usg wok msamp cloud compug Daa gy ad avalably cloud compug basd o Mgaso A Effc Cofdaly ad Igy Psvg Agggao Poocol Wlss Sso Nwoks A Pvacy-awa Quy Auhcao Idx fo Ecypd Daabas Cloud Scu Auhcao Sysm fo Hybd Cloud Svc Mobl Commucao Evoms Aalyzg ad Dfdg Agas Wb-Basd Malwa Poxy-basd agggad sychozao schm mobl cloud compug Povabl daa covably ad hd-abl accss pa basd ORAM Ischh LEA: A 128-B Block Cph fo Fas Ecypo o Commo Pocssos Nwok Scuy Vulabls ad Pvv Masus No-collaboav co dcg o vdo shag socal woks Rssac Is No Ful: Dcg DDoS Aacks whou Pack Ispco Paccal Packg Mhod Somwha Homomophc Ecypo Th Ralzao Sagy of RBAC Eps Offc Auomao Sysm D Sald-Cloud-Vsglug. Fü schs Cloud Compug güg Vschlüsslug all ch. Sald Cloud - Why Ecypo Alo s Isuffc fo Cloud Scuy DNSSEC: Wha s ad why mas Scu ad ffc pvacy-psvg publc audg schm fo cloud soag Raoal Choc Obsvao of Malwa Auhos Tawa Ol-Agff auf d Fabk Alam üb IP. Alamübagug d Zal g Scuy h CVM Fl Sysm ad h Fo Dsbud Daabas Cachg Sysm M2M-Kommukao: Lass Masch spch!. M2M commucaos: L machs spakg W Ha w ud Kühlschäk Spam vschck.... Wlch Nuz b das I d Dg wklch?. Wh Shaks Tw ad Rfgaos Sd Spam.... Wha Advaags dos h I of Thgs Rally Off? Rsach o h Iuso Tola Sysm Basd o IPv Masch m Had- ud Sofwa absch E-Foscs Applcao Rsach h Agculual Idusy Rgulao Safy ds Scuy. Bchsübgfd Schhskozp fü d Wahug vo Bbsghmss, d Bbsschh ud zum Schuz vo Podukosausfäll - IT wd zum Rsko fü Alagbb A Smac-Basd Malwa Dco Sysm Dsg Basd o Chals Usg ascodg fo hdd commucao IP lphoy Pm facozao usg mulpls of Eul's Ph fuco Cypaalyc Aacks o Rvs, Sham, ad Adlma (RSA) Cyposysm: Issus ad Challgs Publc Ky Tchqus fo Pvo of Rsouc Exhauso Aack Wlss Sso Nwoks O-Chp Naoscal Capaco Dcouplg Achcus fo Hadwa Scuy A compss sld aack o h full GOST block cph Dsg of F8 Ecypo Algohm Basd o Cusomzd Kasum Block Cph A Ovvw o Womhol Aack Dco Ad-hoc Nwoks Mdcal Dagoss Exp Sysm as Svc Cloud IT-Schh

6 Shfg pms: Opmzg llpc cuv cypogaphy fo 16-b dvcs whou hadwa mulpl Scuy aalyss of wo cfcalss sho sgau schms Novl dy-basd boadcas cypo h sadad modl A pvacy psvg auhcao schm wh flxbl dy vocao popl-cc ssg Cfca-basd poxy dcypo sysms wh vocably h sadad modl Rsach o Algohm of Boola Fuco Isomophsm Dcso Basd o ROBDD Implmao of mbddd mobl dvc llpc cuv algohm fas gag algohm Cypaalyss of Low Expo RSA Gv Coscuv Bs of p h Mddl Scu ad ffc LBIST fo fdback shf gs-basd cypogaphc sysms A Scuy Aalyss of Ky Expaso Fucos Usg Psudoadom Pmuaos Achcus of Flxbl Symmc Ky Cypo Egs-A Suvy: Fom Hadwa Copocsso o Mul- Cypo-Pocsso Sysm o Chp Ehacg scuy cyb-physcal sysms hough cypogaphc ad sgaogaphc chqus A dgal u adom umb gao mplmd dff Xlx FPGAs Passwod hadd fuzzy vaul fo fgp auhcao sysm Ed-o-d cypogaphc vog: poals ad lmaos Scalabl Zo Kowldg va Cycls of Ellpc Cuvs D-Spad Spcum Wamak Famwok fo Mulmda Copygh Poco Quaum cypogaphy: appoachg commucao scuy fom a quaum pspcv A dy-basd auhcao poocol fo sso woks Dvlopm of a mulpupos accal suvllac sysm usg UAV's Cypogaphc ky ssus ad soluos fo h b sv/pxl-sv mhod Rsach o scuy algohm fo cossg hogous wok basd o ufd commucao chology Usably valuao of lcoc sgau basd -govm soluos Opmal Algbac Immu Boola Fuco Basd o Algbac Nomal Fom Cosuco Mulpl cypd dgal wamak gao mhod COALA: Sysm fo vsual psao of cypogaphy algohms IS-Maagm Duchgäggs Schhsmaagm m Hlf vo zal Ds. Igad Scuy Maagm by mas of cal Scuy Svcs Rsach o Daa Scuy Tchology I of Thgs Pvacy-Psvg Tus Maagm Mchasms fom Pva Machg Schms Dgal Idä - Bass fü d Idusal IT Scuy. Dgal ds - bass fo IT scuy Sma Gds Rsach ad Cosuco of Ifomao Scuy Smulao Ts Bd fo Elcc Pow Sysm RFID Tchology ad Sucu of I of Thgs Dscusso o Compu Nwok Scuy Lgal Issus Abou Madaa Daa Pvacy vs Ifomao Scuy IT-Schh d Fabk. IT Scuy Issus Facos Dsg ad Implmao of a Safy Sascs Admsao Sysm Acv ad Psoalzd Svcs a Ifomao Scuy Egg Cloud Basd o ISO/IEC Us Maagm Ifomao Scuy Egg Evom ISEE Sch App-Umgbug fü mobl Dvcs. Mobl Schh duch Tusd Excuo Evom Movao-Basd Rsk Aalyss Pocss fo IT Sysms Asss Dpdcs Modl Ifomao Scuy Rsk Maagm Flxbl Vsual Cypogaphy Schm ad Is Applcao Dyamc Accss Cool Modl fo Scuy Cl Svcs Sma Gd Sma gd sso daa collco, commucao, ad wokg: a uoal Solvg a 6120-b DLP o a Dskop Compu Bg Scuy fo Bg Daa: Addssg Scuy Challgs fo h Bg Daa Ifasucu...53 A Cocpual Famwok o Aalyz Huma Facos of Ifomao Scuy Maagm Sysm (ISMS) Ogazaos Fom Rgulaos o Pacc: Achvg Ifomao Scuy Complac Halhca Dsc Hadwa Appaaus ad Mhod fo Mobl Applcao ad Commucao Scuy Nw Ruls fo Vdo Complac [daa poco lgslao] Ed Us Dvlopm ad Ifomao Scuy Culu Thshold abu-basd cypo wh abu hachy fo lacs h sadad modl Idfyg ad Addssg Challgs fo Sach ad Aalyss of Dspaa Suvllac Vdo Achvs A mpovd LSB basd sgaogaphy chqu fo RGB colo mags Mddlwa achcu fo aoal lcoc ID cad: h cas of -KTP Idosa A Cogv-Bhavoal Famwok of Us Passwod Maagm Lfcycl I Ca' Typ Tha! P@w0d Ey o Mobl Dvcs Dsg of ovl scuy achcu fo MANET fo usg ad auhcao DSAPE - Dyamc Scuy Awass Pogam Evaluao Chaac sgs, mmoy ad passwods: wha a call sudy ca ll us Wb Pvacy Polcs Hgh Educao: How A Co ad Dsg Usd o Povd Noc (O a Lack Thof) o Uss? Impovd Cypaalyss o Rducd-Roud GOST ad Whlpool Hash Fuco Expmal Pfomac Evaluao ad Fam Agggao Ehacm IEEE WLANs IT-Schh

7 Ifomao scuy supply chas: a pocss famwok Suppo famwok fo fomao scuy polcy ad sk assssm dvlopm fo a w chologcal scao S(sup 3)MS a smpl svc & scuy maagm sysm E-govm wb svcs ad scuy of psoally dfabl fomao dvlopg aos: a cas of som Nga mbasss Rsach o cosuco mhod of physcs scuy sysm fo pojc basd o daa-dv appoach Ehacd Modfd Scuy Famwok fo Nga Cashlss E-paym Sysm Scuy Tsg Mhods ad Tchqus of Idusal Cool Dvcs MAVEN fomao scuy govac, sk maagm, ad complac (GRC): Lssos lad Rsach o Scuy Sags of Dgal Lbay Basd o Cloud Compug Plafom Th us of adom fos classfcao ad k-mas clusg algohm fo dcg m sampd sgaus h acv woks Rou 66: Passvly Bakg All GSM Chals Sa-of-h-a aalyss of h sachs o -govm fomao scuy maagm A calzd us modl appoach fo cloud compug Pcpls of Ifomao Scuy Rsk Maagm Cloud Sufg Cocpualzg h Rlaoshps bw Ifomao Scuy Maagm Paccs ad Ogazaoal Agly Th sach o lcoc dy maagm mchasm Rsach of food safy supvsoy sysm basd o RFID Schlagwogs IT-Schh

8 Nzwkschh Lsugslm - Wlss-Nzwk - Rchmasch Paccal RSA-PAKE fo Low-Pow Dvc Imbalacd Wlss Nwoks. You, Tak-Youg; L, Swo; Hog, Sok-H; Pak, Youg-Ho; Km, Jogsug I: Iaoal Joual of Dsbud Sso Nwoks * Bad 2014 (2014) S 1-6 (6 S, 12 Qull) hp://dx.do.og/ /2014/ Fo hacg h scuy of ubquous commucao, w hav o cosd h kywods: mobly, wlss, ad low compug capably. I hs pap, w sudy o of suabl scuy poocols fo h ubquous commucao vom. W dscuss RSA-basd passwod-auhcad ky xchag (RSA-PAKE) poocols fo mbalacd wlss woks wh a pay uss a low-pow dvc o commuca wh aoh pay quppd wh a powful compug dvc. Fo mbalacd wlss wok applcaos, s mpoa o duc h cos of commucao fo a low-pow dvc v hough h cos fo powful dvcs s casg. Th mos pow-cosumg opao RSA-PAKE poocols s h lably s of uauhozd RSA publc kys. Hc, s mpoa o dsg a ffc lably s mhod o cosuc a ffc RSA-PAKE poocol. I hs pap, w popos a w lably s chqu ad dsg a povably scu RSA-PAKE poocol usg h chqu. Ou poocol s suabl fo scug h commucaos coducd ov mbalacd wlss woks sc h opaos compud by o commucag pay a ffc ough o b mplmd o mos low-pow dvcs such as mobl phos ad PDAs. Th cos of a low-pow dvc s ducd by 84.25% compad wh CEKEP, h mos ffc RSA- PAKE poocol. W pov h scuy of ou poocol ud a fmly fomalzd scuy modl vulls Kafwk - Sadadsug - Vzug (Kommukao) Sadads fü vull Kafwk. Idusfoum VHPady. Luckbach, Thomas; Wolf, Am I: w - Elkzäswschaf * Bad 113 (2014) Hf Spzal II: Sma Egy, S (3 S, Bld, Tabll, 4 Qull) Im Fbua 2014 wud das Idusfoum VHPRady. V. (Vual Ha ad Pow) ggüd, wom d Guds fü d bach- ud hsllübgfd Ewcklug vo vull Kafwk glg wud. Zl ds Idusfoums s d Ewcklug s off, bachübgfd Idussadads zu Vzug vo dzal Egalag, wom ds zu vull Kafwk zusammgschloss wd kö. Gudlag d Sadadsug sll d s Okob 2012 f vfügba Spzfkao VHPRady 3.0 da, d vo Vafall gmsam m Pa ab wud. A d Nachfolgspzfkao VHPRady 3.x wd dz ss ds Idusfoums VPHRady gab. D akull Vso 3.0 usüz d Aschluss vo Blockhzkafwk ud Wämpump a zal Kafwkssuug. D Nachfolgsadad 3.x soll w Egsysm, w z. B. Baspch, glba Egsps ud Egvbauch sow Wämspch usüz. D Kommukao folg p I sow d zu Suug vwd Pookoll IEC (sgalo) sow IEC (objko). D Schh d Davbdug wd duch VPN (vulls pvas Nzwk) auf Bass vo OpVPN m SSL/TLS-Vbdug gwähls. D Topolog ds VPN s sfömg, d. h. d Kommukao folg mm üb d OpVPN-Sv. D Auhfzug d Cls folg mhlf zlch bfs Zfka, d vom Lsllpsoal zug ud vwal wd. D Bag sll m W d Ogasaossuku ds Idusfoums VHPRady. V. ud d dam vbud VHPRady-Svcgsllschaf GmbH vo ud läu d Aufgabbch ud Tägksfld Schh - Dal-of-Svc - Svc-Qualä A soluo o h GTS-basd slcv jammg aack o IEEE woks. Dado, Roba; D, Galuca; Tloca, Maco I: Wlss Nwoks * Bad 20 (2014) Hf 5, S (13 S) hp://dx.do.og/ /s y Th IEEE sadad allows dvcs o accss h mdum o oly coo mod bu also a coo-f way, od o suppo qualy of svc (QoS). I coo-f mod, dvcs accss h mdum accodg o h guaad m slo (GTS) mchasm, whch s vulabl o h slcv jammg aack. Ths s a paculaly sdous fom of dal of svc ha allows a aack o hwa QoS whl lmg h ow xposu a h mmum. I hs pap, w ps slcv jammg ssa GTS, a soluo agas h GTS-basd slcv jammg. W also show ha ou soluo s sadad compla ad affodabl fo souc-scac dvcs lk Tmo Sky mos. Spg-Vlag. Rpoducd wh pmsso. 5 IT-Schh

9 Compuzwkschh - Musklassfkao - lokals Dahloszwk Aomaly basd uso dco WLAN usg dscmao algohm combd wh Nav Baysa classf. Kavha, P. - E-Mal:paajoh.kavha@gmal.com; Usha, M. - E-Mal:ushaau@.og I: Joual of Thocal ad Appld Ifomao Tchology, Paksa * vol 62 (2014) o 1, p 77-84, 25 fs. Th ol of Iuso Dco Sysm (IDS) has b vabl h aa of Ifomao ad Nwok scuy - spcally fo buldg a good wok dfs fasucu. Du o h wd populay of Wlss Nwoks mdous applcaos a mgg ad Wlss Local Aa Nwok (WLAN) has gad ao by boh sach ad dusy commus. Th wd spad dploym of WLAN has also bough w challgs o scuy ad pvacy. W d o dsgush aomals ha chag h affc h abuply o slowly. Aomaly basd uso dco chqu s o of h buldg blocks of such a foudao. I hs pap, h amp has b mad o apply colao coffc basd lag appoach fo dcg aomals wlss Local aa wok. Whl a good amou of sach has b do fo fxd wd woks, o much sach has b do hs aa fo wlss woks du o lack of a good daas. Hc w dvlopd a dscmao algohm usg colao coffc o dc aomals combd wh Nav Baysa classf h Wlss affc ad dmosad h ffcvss usg Kyoo daass. A xpm s cad ou od o valua pfomac basd o accuacy, dco a ad fals posv a of h classfcao schm. Rsuls ad aalyss shows ha h poposd appoach has hacd h dco a wh mmum fals posv as Bdugsho - Roug-Pookoll Quu lgh ad mobly awa oug poocol fo mobl ad hoc wok. Ahmd, Bsga - E-Mal:bsga@gmal.com; Mohamd, Ouadou - E-Mal:ouadou@fs.ac.ma; Mohamd, Rzza - E-Mal:zza@fs.ac.ma I: Iaoal Joual of Commucao Nwoks ad Ifomao Scuy, Paksa * vol 4 (2012) o 3, p , 17 fs. A mobl ad-hoc wok (MANET) s dff fom oh wlss woks may ways. O of h ky dffcs s ha a MANET s a mulhop wlss wok,.., a oug pah s composd of mda mobl ods ad wlss lks cocg hm. I hs pap, hogous Mobl Ad-hoc Nwoks (H-MANETs) a cosdd. H-MANETs a composd of ods wh dff asmsso ag. W popos a mpovm of AODV poocol calld AMAODV (Adapav Mobly awa AODV). Ths poocol s basd o w mc comb mo oug mcs (dsac, lav vlocy, quu lgh ad hop cou) bw ach od ad o hop ghbo. Whch pms o avod losg ou. Though h smulao, s cofmd ha hs mpovm has hgh pack dlvy ao ad lss avag d-o-d dlay ha basc AODV poocol Davwalug - Fl-Sv - Fwall Dsbug CMS Daa bw h Floda T2 ad T3 Cs usg Lus ad Xood-fs. Chg, M.; Kagaas, G.; Rodguz, J. L. - E-Mal:jodg@fu.du; Avy, P.; Boulkov, D. - E- Mal:boulkov@phys.ufl.du; Fu, Y.; Palca, J. I: Joual of Physcs: Cofc Ss, UK * vol 513 (2014) hp://dx.do.og/ / /513/4/ W hav dvlopd mo daa accss fo lag volums of daa ov h Wd Aa Nwok basd o h Lus flsysm ad Kbos auhcao fo scuy. I hs pap w xplo a pooyp fo wo-sp daa accss fom wok ods a Floda T3 cs, locad bhd a fwall ad usg a pva wok, o daa hosd o h Lus flsysm a h Uvsy of Floda CMS T2 c. A h T3 c w us a cl whch mous sculy h Lus flsysm ad hoss a XooD sv. Th wok ods accss h daa fom h T3 cl usg POSIX compla ools va h XooD-fs flsysm. W pfom scalably ss wh up o 200 jobs ug paalll o h T3 wok ods Kypogaph + Vschlüsslug - Fukz - Tlkommukaosschh Rsach o Achcu Suvvably of Wlss Nwoks. aoym I: Advacd Maals Rsach, Swzlad * vol (2014) p , 5 fs. hp://dx.do.og/ / I hs pap, h wok achcu of wlss wok sysms suvvably, h das basd o uso olac, dudacy ad dvsy of chology wll b combd, usg hshold cypogaphy, pss a vabl wok sv scuy achcu. Ths poposal mplms ky faus of h sysm scuy ad obusss, h daabas sysm o m h suvvably qums fo buldg a wlss wok sv achcu has mpoa fc valu.. 6 IT-Schh

10 Auhfzug - Kypogaph + Vschlüsslug - Fwall Wlss Nwok Scuy Poblms ad Copg Sags. aoym I: Appld Mchacs ad Maals, Swzlad * vol (2014) p 925-9, 4 fs. hp://dx.do.og/ / Wlss wok maks up h wd wok shocomgs. Wh h populay of h WF mal, wlss wok bgs covc, a h sam m, h scuy has a cosaly upgadg, ad h scuy ssus hav b plagug h lgma us. Wlss wok scuy s o oly wh auhcao, cypo, gy sg ad oh chology-lad, bu also d uso dco sysms, fwalls ad oh chology coopao, so 's a mul-layd poblm. No oly h wok admsao ds o ak scuy masus o poc h wok ad comphsv safy spco, bu also qus h uss o hac h wok scuy awass Compuzwkschh - Fukz Rsach o compu wlss wok ad fomao scuy. Wzha Guo I: Appld Mchacs ad Maals, Swzlad * vol (2013) p , 5 fs. hp://dx.do.og/ / Wh h apd dvlopm ad wd applcao of wlss wokg chology, Ifomao scuy ssus a casgly pom mafsd by mo ad mo ao. Th acl dscbs h schma of h daa moog plafom spaa fom h daa lay, wok lay ad psao lay h lvls,focuss o plafom of llg back-d daabas sucu, ad poposd spcfc masus o su plafom scuy,o su h fomao scuy of compu woks, so as o gv full play ol of compu woks Kypogaph + Vschlüsslug - Lwglkug Wlss wok codg wh physcal-lay scuy. Lag Ch I: (2013) p Pscaaway, NJ, USA: IEEE, 2013 hp://dx.do.og/ /glocom Today, layg a ous s scu bcaus w cyp h cofdal mssags. W allow ous o hav full accss o cos of cvd packs ad s assud ha h cofdal cos cao b dcypd, wh h udlyg assumpo ha advsas h wok cludg h ous a compuaoally boudd. Nohlss, as chology dvlops, much hgh compuaoal capably may b achvd. Th wok s o scu ay mo wh ous o avsdopps a ous hav f compuaoal pow. Idd, h a ocompuaoal scuy basd schms agas xal avsdopps, whch mak h avsdopps fal cvg coc daa, bu ufoualy hy cao b usd fo scuy a ous, bcaus w d o achv o oly scuy bu also o-f daa fowadg a ous, whch s much mo challgg. Ths pap poposs scu wlss wok codg o achv physcal-lay scuy a ous by akg advaags of fc ad os, whch a usually cosdd hamful. W xplo h fc o dsg wok codg poocols o achv o oly scuy, bu also o-f daa fowadg a a hgh a. Nos, whch lads o h adomss of wlss chals, also cobus o povdg scuy ou schm. Wh h hlp of boh fc ad os, wlss wok codg ca b a cucal appoach o achv scuy a ous, whch adoal so-ad-fowad oug cao achv Compuzwkschh - Daschuz - I d Dg Applcao Daa Fuso of I of Thgs Basd o h KL Dsac of Rpuao Modl. Xupg Zhu - E-Mal:zhuxp@.du.c I: Advacd Maals Rsach, Swzlad * vol (2013) p , 8 fs. hp://dx.do.og/ / Th I of Thgs s a ba wok basd o h I, h adoal lcommucaos wok, wlss slf-ogazg woks c, so ha all ca b dvdually addssabl oday physcal objcs o achv h coco wok. Th I of Thgs s volvd fom h wlss sso wok, whch has lmd souc gy, mmoy, calculao, badwdh ad c,. I addo, may applcaos h I of Thgs a lad o us pvacy. I h pocss of daa collco ad asmsso, h daa may b fogd, ampd, ad a vay of oh fomao scuy has. I od o xd h wok lfm, o poc h auhcy ad lably of daa fuso, hs pap pss a puao modl of daa fuso algohm. Th algohm s vfd by smulao, h xpmal suls show ha h poposd algohm s ffcv ad h sul of daa agggao s labl.. 7 IT-Schh

11 Kypogaph + Vschlüsslug - mobl Davabug - Tlkommukaosschh Paalll mul-cp poxy -cypo fo scu goup commucao wlss woks. Mqg Zhag; Ylag Ha - E-Mal:ylagha@gmal.com I: ICIC Expss Ls, Japa * vol 7 (2013) o 8, p , 10 fs. A paalll mul-cp poxy -cypo schm s poposd, whch sgfcaly mpovs h ffccy of goup commucao dcalzd wlss woks. Th wok modl s psd, ha s, powful poxy ods a ogazd a backbo wok; oh cls wh lmd ably a maagd by h poxy od ad h fom a subgoup. Th paalll mul-cp poxy -cypo algohm calld PaaPR placs h mos calculag o h poxy ods, ducg h bud of boh h sd ad cvs. Th mssags a pocssd paalll wh adomss usg ad cph x agggao, ducg h compuao ad asmsso ovhads. Expm sul shows ha, h mpovm of CPU m ad cph x sz a 70.0% ad 38.5% wh 1,000 dsc mssags a pocssd. Wh cvs casg, h mpovm wll b mo obvous dgal Sgau + lkosch Uschf - bwglchs Kommukaossysm - mobl Davabug A scu Hybd P2P Nwok mobl commucao dvc dsg. W-Hsug Kuo - E-Mal:guoala@gmal.com; P-Chag Su - E-Mal:spc.cg@msa.h.; Jag-Lug Lu - E- Mal:chaglug.lu@gmal.com I: Appld Mchacs ad Maals, Swzlad * vol (2014) p , 9 fs. hp://dx.do.og/ / Wlss wok fasucu has dvlopd apdly wh h populay of psoal mobl dvcs. Uss ca us mobl dvcs o oam h wlss wok vom coducg asacos such as sdg mssags ad accssg h I. Nwok commucao has bcom a lfsyl cssy. Th applcao of fomao chology poducs also bgs IT scuy ssus. Th wlss wok vom maks mssags suscpbl o avsdoppg ad daa ampg aacks. I addo, h mobl dvc compuao ably pss pow lmg ssus. Thfo, achvg ffccy ad scuy qums s mo dffcul mobl dvc daa asf ov a wlss wok compad wh a had-wd compu wok. Iscuy ssus aboud P o P (P2P) woks. Coducg dy auhcao cogzd cfd lgal mmbshp ad pfomg mssag dlvy ad shad fomao a ccal ssus. Th dy (ID) auhcao ad cfcao fo hs yp of wok has bcom a mpoa ssu. Th pap pss a scu commucao mhod usg slf-cfd sg-cypo wh a bld sgau schm basd o llpc cuv cypogaphy (ECC) fo hybd P2P woks. Thocal aalyss shows b scu dfcao-ad-auhcao faus Cloud-Compug - Vküpfugspogamm - mobl Davabug Wlss Algohms, Sysms ad Applcaos. Pocdgs: LNCS 8491, Hab, Cha, Ju Ca-Zhpg - E-Mal: zca@cs.gsu.du; Chaoku-Wag - E-Mal: chaoku@sghua.du.c; Hog-Gao - E-Mal: hoggao@h.du.c; Hogzh-Wag - E-Mal: wagzh@h.du.c; Syao-Chg - E-Mal: csy@h.du.c I: 2014 (xv+807 pp) Cham, Swzlad: Spg Iaoal Publshg Th followg opcs a dal wh: cogv ado woks; wlss sso woks; cyb-physcal sysm; dsbud ad localzd algohm; dsg fomao ad codg hoy; mobl cloud compug; opology cool; daa scuy ad pvacy; udwa ad udgoud woks; vhcula woks; fomao pocssg; daa maagm; pogammabl svc facs; gy-ffc algohm; mddlwa suppo; opag sysm Nzschsll - Lwglkug Fa Pack Dsbuo o Mul-facd Mobl Rou fo Mobl Nwoks. Pyug-Soo Km - E-Mal:pyugk@uc.du I: Iaoal Joual of Commucao Nwoks ad Ifomao Scuy, Paksa * vol 4 (2012) o 2, p , 14 fs. Ths pap poposs a fa pack dsbuo schm o a mul-facd mobl ou (MMR) fo mobl woks. I h poposd schm, h MMR wh mulpl hogous wlss wok facs ffcvly ad faly dsbus comg packs ov d-o-d mul-pah. Each wok fac s cosdd o hav a dsbuo cou assocad wh cospodg d-o-d pah. Ths dsbuo cou vad by boh wghd capacy ad dsbud packs s usd o dm f a wok fac has ough cds o dsbu comg packs o cospodg d-o-d pah. As a usful dsg paam, h capacy u ca b show o mak h pfomac of h poposd schm as good as possbl. Though compu smulaos, s show ha h poposd schm ca dsbu wll adomly comg packs ov d-o-d mul-pah ad ca oupfom h smpl wghd pack dsbuo schm.. 8 IT-Schh

12 Abfagvabug Daa allocao chqus fo mobl sso woks. Haa, Takaho - E-Mal:haa@s.osaka-u.ac.jp; Nsho, Shojo - E-Mal:sho@s.osaka-u.ac.jp I: (2014) p Pscaaway, NJ, USA: IEEE hp://dx.do.og/ /waina I mobl sso woks (MSNs), sc sso ods ad wlss woks a hghly souc cosad, s qud o maag sso daa flxbl ad ffc mas. Ud h MEXT sach pojc ld 'Suds o Effc Daa Pocssg Tchqus fo Mobl Sso Nwoks', w hav coducd sachs o daa maagm ssus MSNs. I hs pap, w po som of ou achvms a sub-aa of hs pojc, whch addsss daa allocao fo ffc quy pocssg MSNs. I pacula, w fs show ou achvms o how o ffcvly alloca sso daa o mobl ods ad how o ffcly pocss op-k ad k-as ghbo qus o h allocad daa. Th, w also show ou achvms o how o quafy h mpacs of mobly o daa avalably ad daa dssmao MSNs Gäauswahl - Lwglkug - lokals Dahloszwk Tavl Rous Off a Scu W-F Nwok Almos Aywh. Bow, Mchal I: Macwold, USA * vol 31 (2014) o 8, p If you d I accss o h oad, cay a avl ou. Us o o coc o a W-F hospo o a boadbad svc, ad wll ca a pva, scu, wlss wok wh a obus fwall fo all you dvcs. Usg a la MacBook Po wh a Boadcom ac chps, h auho sd sx avl ous sd hs 2800-squafoo, sgl-soy hom, valuag spds wh h cl hs bdoom (9 f fom h ou, h sam oom), kch (20 f away, spaad by o sulad wall), ad hom offc (65 f away, spaad by sval walls). H masud TCP houghpu fom a Mac (acg as a sv) o h MacBook Po usg h WFPf uly. Th ous sd w: Nga Tk PR2000; D-Lk DIR-510L; TP-Lk compac TL-MR3040; Asus WL-330NUL; Td TEW-714TRU; ad TP-Lk TL-WR710N Appoxmaosho - Kypogaph + Vschlüsslug Chal-Paam-Basd Ecypo Ky Gao Algohm Ad Pfomac Aalyss Fo Wlss Rlay Nwoks Agas Eavsdoppg. Gogpu Wag - E-Mal:gpwag@bju.du.c; Zhagdu Zhog - E-Mal:zhdzhog@bju.du.c; Ff Gao - E- Mal:ffgao@.og; B Su - E-Mal:sub@bup.du.c I: 2014 Svag, UK: IET I hs pap, a cypo ky gao algohm s suggsd fo mulpl-lay woks agas avsdoppg. Th poposd algohm s basd o h paams of h wlss chals bw h lays ods ad h dsao, whch s uavalabl fo ay avsdopp. Th scu pfomac of h poposd algohm s also aalyzd hough mahmacal dvao. Spcfcally, h closd fom of ky machg pobably, a mpoa masu fo scu pfomac, s obad hough mulpl-oud gao ad asoabl appoxmao. Fally, smulaos a povdd o cooboa ou poposd suds CDMA (Cod Dvso Mulpl Accss) - Sallübagug - lokals Dahloszwk Hogous Spaccaf Nwoks: Wlss Nwok Tchology Assssm. Ala, Rchad - E-Mal:chad.l.ala@asa.gov; Nakamua, Yosuk - E-Mal:akamua.yosuk@jaxa.jp; Fab, Ncolas - E-Mal:colas..fab@asa.gov; Mauo, Davd - E-Mal:davd.mauo@asa.gov I: 2014 Pscaaway, NJ, USA: IEEE hp://dx.do.og/ /aero Cosllaos of small salls a usful fo a umb of ah obsvao ad spac xploao mssos. Th Hogous Spaccaf Nwok pojc s dfg opaos cocps ad pomsg chology ha ca povd ga capably a low cos. Typcally, such spaccaf ca commuca wh ach oh ob ad wh goud saos fo spaccaf opao ad dowlk of scc daa. Howv, small spaccaf of cao ulz h capably dlvd by woks such as h Uvsal Spac Nwok, v f h msso could affod h cos. Small spaccaf hav sgfca cosas ms of pow avalably, aud sably ad ovall mass ad volum, qug ovav chology fo mplmg hghly fucoal salls. A majo challg fo such mssos s slcg commucaos chology abl o fuco h spac vom, abl o m h qums fo boh -sall ad spac-o-goud daa lks ad f wh h soucs avalabl o small salls. Moov, h cos of h chology ds o b as low as possbl o facla pacpao by a boad ag of ogazaos. Fally, h commucaos woks should cofom o sadads allowg boad adopo ad h us of commo fasucu fo mulpl mssos. Commucaos chology basd o h IEEE 802 famly of local aa ad mopola aa wok sadads ca b adapd o m h ds of such mssos. Ths pap 9 IT-Schh

13 wll dfy possbl dvlopm pahs fo mpovd commucao bw small salls ad o h goud by vwg ad valuag sadads-basd chology fo us by small sall mssos. Mhods fo galy xdg boh ag ad daa a wll b poposd ad aalyzd. I wll vw ad valua h IEEE wlss wok sadads, h ITU WCDMA 3G cll pho sadad ad h IEEE Psoal Aa Nwok sadad. A smpl s of commucao qums wll df h ad offs bw sadads ad dfy h chcal capably dd fo such mssos. Spcfcally, h mpovms dd o h Physcal Lay o xd ag o 1200 Km ad h ably o comply wh spcum maagm cosas wll b vsgad. Auhcao ad cypo wll b addssd alog 1wh adjusms o h Mda Accss Cool lay ha ca opmz daa asf as ov a boad ag of dsacs ad codos. Th pap cocluds wh commdaos fo sadads-basd commucao chology dvlopm fo small salls suppod by h suls of hs ad sudy. Th pmay objcv s o galy duc h cos of daa commucao fo small salls by sablshg a commo fasucu abl o m h ds of mos mssos Zugagspookoll + Zugffspookoll - Auhfzug - Compuzwkschh Combag Isd Aacks IEEE Wlss Nwoks wh Boadcas Ecypo. Fazo, Nlly - E-Mal:fazo@ccy.cuy.du; Gao, Rosao - E-Mal:osao@ccy.cuy.du; Saadaw, Tak - E- Mal:saadaw@ccy.cuy.du; Pa, Ippug Mlda - E-Mal:pa@gc.cuy.du I: (2014) p Los Alamos, CA, USA: IEEE Compu Socy hp://dx.do.og/ /aina Th IEEE poocols a usd by mllos of smapho ad abl dvcs o accss h I va W-F wlss woks o commuca wh o aoh dcly a p-o-p mod. Isd aacks a hos ogag fom a usd od ha had ally passd all h auhcao sps o accss h wok ad h go compomsd. A usd od ha has ud ogu ca asly pfom Dal-of-Svc (DoS) aacks o h Mda Accss Cool (MAC) lay by llgally capug h chal ad pvg oh lgma ods fom commucag wh o aoh. Isd aacks ca al h mplmao of h IEEE Dsbud Coodao Fuco (DCF) poocol sdg h Nwok Ifac Cad (NIC) o llgally cas h pobably of succssful pack asmssos o h chal a h xpss of ods ha follow h poocol sadads. Th aack fools h NIC o upgad s fmwa ad focs a vso coag h malcous cod. I hs pap, w ps a dsbud soluo o dc ad sola h aack od o mmz h mpac of h DoS aacks o h wok. Ou dco algohm hacs h DCF fmwa o abl hos ods o moo ach oh's affc ad compa h obsvaos agas hos commucao pas dvd fom a wo-dmsoal Makov cha. A chal hoppg schm s h usd o h physcal lay (PHY) o vad h aack. To facla commucao amog h hos mmb saos ad mmz wok dowm, w oduc wo solao algohms, o basd o dy-basd cypo ad aoh basd o boadcas cypo. Ou smulao suls show ha h la joys quck covy m ad fas wok covgc kypogaphsch Pookoll - bwglch Fukds - Tlkommukaosschh Effc Pvacy-Psvg Auhcao Wlss Mobl Nwoks. Dog Hoo L - E-Mal:doghl@koa.ac.k; Hyo J Jo - E-Mal:mllmay@koa.ac.k; Jug Ha Pak - E- Mal:jugha.pak@gmal.com I: IEEE Tasacos o Mobl Compug, USA * vol 13 (2014) o 7, p , 40 fs. hp://dx.do.og/ /tmc Scu auhcao oamg svcs s bg dsgd o allow lgal uss o g accss o wlss wok svcs wh hy a away fom h hom locao. Rcly, o poc h locao pvacy of uss, h hav b sachs o aoymous auhcao. I pacula, aoymous auhcao whou h pacpao of hom svs has aacd cosdabl s owg o s fluc o h commucao ffccy. Ufoualy, h pvously poposd aoymous auhcao schms hav sous paccal shocomgs, such as hgh commucao ad compuao coss ad hug vocao lss. I hs pap, w popos a ovl h-oud aoymous oamg poocol ha dos o qu h pacpao of hom svs. Th poposd poocol uss a psudo-dy-basd sgcypo schm o pfom ffc vocao wh a sho vocao ls ad ffc auhcao. Th us of a sgcypo algohm mmzs h umb of psudo-ds sod a Subscb Idfcao Modul (SIM) cad wh lmd soag capacy. Th auhcao ffccy s also hgh ha ha of xsg poocols. Th poposd poocol s fomally povd h Ca-Kawczyk (CK) modl.. 10 IT-Schh

14 Tlkommukaosschh Mmzao of Pow Cosumpo Mobl Ad hoc Nwoks. Ksha, B. Aada - E-Mal:aad_bk@dffmal.com; Ruxaayasm, B. - E-Mal:uxaayasm.b@gmal.com; Subhash, T. - E-Mal:subhash.aaga@gmal.com I: Iaoal Joual of Compu Nwok ad Ifomao Scuy, Cha * vol 6 (2014) o 2, p 38-44, 12 fs. hp://dx.do.og/ /jcs hp:// A ad hoc wok s a mobl wlss wok ha has o fxd accss po o calzd fasucu. Each od h wok fucos as a mobl ou of daa packs fo oh ods ad should maa h wok ous fo log sadg whch s o possbl du o lmd bay souc. Also, du o od mobly, lk falus such woks a vy fqu ad d ca sadad poocols ffc sulg wasag of pow ad loss houghpu. Th pow cosumpo s a mpoa ssu wh h goal o maa h wok lvs fo log by cosumg lss pow. Th pow cosumpo ca b achvd by modfyg algohms such as cypogaphc algohms, Roug algohms, Mulcas Algohms, Egy Effc Algohms ad Pow Cosumpo Tchqus Hgh Pfomac Compug, Compsso ad dcompsso algohms, mmzg lk falu algohms, ad by pow cool algohms. I hs wok, w hav poposd a w algohm fo mmzao of pow cosumpo Ad hoc woks. Th pfomac of h poposd modl s aalyzd ad s obsvd ha, fomao could b s wh scuy cosumg lss compuaoal pow, hby casg h bay lf Compuzwkschh - kypogaphsch Pookoll - lokals Dahloszwk Dsg ad Implmao of Scuy Pfomac Ts Sysm fo Wlss Local Aa Nwok. Hu A-qu; Sh Chua-zhg; Sog Yu-bo; Bu Ng; Ja Xu-f I: Compu Egg, Cha * vol 39 (2013) o 7, p 193-9, 17 fs. hp://dx.do.og/ /j.ss Basd o h aalyss of acv s, passv s ad pao s, o wlss LAN scuy s sysm basd o pao s s poposd hs pap. Ths sysm ca mak scuy poocol complac vfcao ad qupm poocol scuy sg agas WEP, WPA, WPA2 ad WAPI, ad ca gv h po abou safy valuao. Th dsg ad mplmao of h sysm s poposd, ad h s suls agas h wlss qupms a gv. Th suls show ha h sysm ca mak scuy poocol complac vfcao ad pao s ad h s pocss of h sysm s auomad Fuch - Daschh Th ol xamao sysm of dsac ducao. aoym I: Appld Mchacs ad Maals, Swzlad * vol (2013) p , 7 fs. hp://dx.do.og/ / Th dsac ducao has b cosdabl dvlopm Cha, 's mpoa o povd a ffc ool fo ol xamao o local aa wok. Ths pap aalyzd h dvlopm of dsac ducao ad ol xamao sysm c yas, ad dsgd a ol xamao sysm. Th auho poposd h daa flow, fuco moduls, ad h fac o oh sysms. I od o su h fass ad auhoy, h daa so scuy ad daa asf scuy has b sudd. Fally, h auhos oduc h sysm applcao. Th sysm povds qualy xam o suds vywh a a m ad plac ha s flxbl ad accssbl kypogaphsch Pookoll - lokals Dahloszwk A scu commucao ov wlss voms by usg a daa coco co. Fag-Y Lu - E-Mal:lufy@hu.du.w; Ko-Chug W - E-Mal:ockyw@sd..w; Y-L Huag - E- Mal:yfug@hu.du.w I: Mahmacal ad Compu Modllg, UK * vol 58 (2013) o 5-6, p , 32 fs. hp://dx.do.og/ /j.mcm Rcly, wlss woks, such as W-F ad 3G, hav b wdly quppd ad populaly usd h wold. Popl holdg sma dvcs ca covly accss h I svcs hough mod wlss woks. Howv, wh popl a joyg usg wlss sysms, wok scuy has b a cucal challg bcaus wlss mssags, cypd o ucypd, may b malcously cpd by hacks. Af aalyzg ad/o dcypg h mssags, hacks ca llgally capu o sal mpoa fomao, such as cd cad umbs o usams/passwods, cad h mssags. Culy, SSL ad IPsc a ulzd o poc h dlvy of hs yps of fomao. Howv, ach of h wo scuy poocols has s ow dawbacks boh h ky xchag ad mssag cypo/dcypo pocsss. To solv hs dawbacks, hs pap, w popos a scu commucao sysm, amd h Wlss Scuy Sysm wh Daa Coco Co (WSDC fo sho), whch cosss of wo scuy schms, cludg a symmc ky xchag pocss ad a wo-dmsoal sam cph 11 IT-Schh

15 mchasm. Th fom mploys adom umbs ad h coco kys coad h Daa Coco Co (h DCC fo sho) o ga al kys, hough whch h scuy lvl of h ky xchag pocss ca b hacd. H, h DCC s a s of adom umbs cad wh h udlyg us gss hmslf/hslf wh h wlss sysm bg cosdd, ad h adom umbs a oly kow o h us ad AAA sv of h wlss sysm. Th la voks wo opaos, cludg xclusv-o (+)[ccld plus] ad bay add +(sub 2) opaos, ad wo Psudo Radom Numb Squcs (PRNSs) o cyp plax so as o wll poc h cphx. Th WSDC also adops a psudo adom umb gao, whch fds back kys cu sag as a pa of h pus of h x sag, o ga mo complcad kys fo daa cypo. Expmal suls show ha h WSDC ca ffcvly poc asmd mssags fo wlss voms. Th aalycal suls dca ha h WSDC has hgh scuy lvl ad xcuo ffccy ha hos of h SSL ad IPsc. [All ghs svd Elsv].. Kypogaphsch Vfah DNS (Doma Nam Sysm) - Bows - Schhsfasuku O h Fasbly of a Csoshp Rssa Dcalzd Nam Sysm. Wachs, Mahas; Schazbach, Ma; Gohoff, Chsa I: FPS, Iaoal Symposum of Foudaos ad Pacc of Scuy, 6, : Lcu Nos Compu Scc * Bad 8352 (2014) S (12 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _2 A cal poblm o h I oday s ha ky fasucu fo scuy s cocad a fw placs. Ths s paculaly u h aas of amg ad publc ky fasucu. Sc svcs ad oh govm ogazaos ca us hs fac o block accss o fomao o moo commucaos. O of h mos popula ad asy o pfom chqus s o mak fomao o h Wb accssbl by csog o mapulag h Doma Nam Sysm (DNS). Wh h oduco of DNSSEC, h DNS s fuhmo posd o bcom a alav PKI o h falg X.509 CA sysm, fuh cmg h pow of hos chag of opag DNS. Ths pap maps h dsg spac ad gvs dsg qums fo csoshp ssa am sysms. W suvy h xsg ag of das fo h alzao of such a sysm ad dscuss h challgs hs sysms hav o ovcom pacc. Fally, w ps h suls fom a suvy o bows usag, whch suppos h da ha dlgao should b a ky gd ay csoshp ssa am sysm. Spg-Vlag. Rpoducd wh pmsso Auhfzug - Zfka - Vschlüsslug A Gal Famwok fo Goup Auhcao ad Ky Exchag Poocols. Yag, Huhu; Jao, L; Olshchuk, Vladm A. I: FPS, Iaoal Symposum of Foudaos ad Pacc of Scuy, 6, : Lcu Nos Compu Scc * Bad 8352 (2014) S (15 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _3 I hs pap, w popos a ovl famwok fo goup auhcao ad ky xchag poocols. Th a h ma advaags of ou famwok. Fs, s a gal o, wh dff cypogaphc pmvs ca b usd fo dff applcaos. Scod, woks a o-o-mulpl mod, wh a pay ca auhca sval pas muually. Las, ca povd sval scuy faus, such as poco agas passv advsas ad mpsoa aacks, mplc ky auhcao, fowad ad backwad scuy. Th a wo yps of poocols ou famwok. Th ma dffc bw hm s ha h auhcao Typ II has a cfca whl Typ I dos o. Ud h gal famwok, w also gv h dals of poocols basd o Dff-Hllma ky xchag sysm, ad dsc logahm poblm (DLP) o llpc cuv dsc logahm poblm (ECDLP) basd ElGamal cypo spcvly. Ssso kys wll b sablshd a h d of ach ssso ad hy ca b ulzd la o poc mssags asmd o h commucao chal. Spg-Vlag. Rpoducd wh pmsso asymmsch Vschlüsslug - symmsch Vschlüsslug - Übagugspookoll Pvacy-Psvg Publsh/Subscb: Effc Poocols a Dsbud Modl. Csczo, Gova d; Coa, Ba; Schulz, Joh; Tsag, Smo; Wgh, Rbcca N. I: DPM, Iaoal Wokshop o Daa Pvacy Maagm, 8, SETOP, Iaoal Wokshop o Auoomous ad Spoaous Scuy, 6, : Lcu Nos Compu Scc * Bad 8247 (2014) S (19 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _8 W cosd h poblm of modlg ad dsgg ffc ad pvacy-psvg publsh/subscb poocols a dsbud modl wh pas ca ac as publshs o subscbs o boh, ad h a o boks o oh yps 12 IT-Schh

16 of pas. Th poblm s paculaly challgg as pvacy dmads o such poocols com wh ffccy lmaos; mos oably, h publsh mus sd mssags as log as h publcaos o all pas, ad h cypogaphc chqus o pfom h publsh/subscb mach d o b basd o asymmc cypogaphc opao whch a kow o b lss ffc ha h symmc coupa. Ou ma sul s a dsbud publsh/subscb poocol whch addsss ad ssally ullfs h mpac of boh ffccy lmaos, whou sacfcg h qud pvacy pops. Ou cosuco s basd o vy ffc dsg of a ovl cypogaphc ool, of dpd s, calld 'hybd codoal oblvous asf poocol', as smbls hybd cypo, wh asymmc cypo s oly usd o asf a sho ky, whch abls (much mo ffc) symmc cypo of a log mssag. Spg-Vlag. Rpoducd wh pmsso Kommukaossysm - Nachchübagugssysm - E-Mal Quafyg ad Masug Aoymy. Mudoch, Sv J. I: DPM, Iaoal Wokshop o Daa Pvacy Maagm, 8, SETOP, Iaoal Wokshop o Auoomous ad Spoaous Scuy, 6, : Lcu Nos Compu Scc * Bad 8247 (2014) S 3-13 (11 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _1 Th dsg of aoymous commucao sysms s a lavly w fld, bu h ds o quafy h scuy hs sysms off has b a mpoa opc of sach sc s bgg. I c yas, aoymous commucao sysms hav volvd fom obscu ools usd by spcalss o mass-mak sofwa usd by mllos of popl. I may cass h uss of hs ools a dpdg o h aoymy offd o poc h lby, o mo. As such, s of ccal mpoac ha o oly ca w quafy h aoymy hs ools off, bu ha h mcs usd ps alsc xpcaos, ca b commucad claly, ad h mplmaos acually off h aoymy hy poms. Ths pap wll dscuss how mcs, ad h chqus usd o masu hm, hav b dvlopd fo aoymous commucao ools cludg low-lacy woks ad hgh-lacy mal sysms. Spg-Vlag. Rpoducd wh pmsso Ewcklugspozss - Auhfzug - Bbssysm Idus 4.0 auf sch Wg: Idusll Sysm wkugsvoll schüz. Wzd, Olv I: SPS IPC Dvs, Iaoal Kogss Elksch Auomasug Sysm ud Kompo, 2013 * (2013) S 1-9 (ch pag) (9 S, Bld), Da: /24-Wzd.pdf D Igä vo Embddd-Sysm läss sch duch d Awdug kypogafsch Vfah m kla df Ablauf ud sch Hadwa zu Schlüssl- ud Zusadsspchug gwähls. Es xs kommzll Schuzsysm, d fü dusll Schsll vfügba sd, gbäuchlch Bbssysm usüz w Wdows, Mac OS X, Lux sow Wdows Embddd, Ral Tm Lux, VxWoks, SPS-Sysm w CODESYS ud w. E sch Implmug symmsch ud asymmsch Vschlüsslugsvfah (AES, RSA, ECC) sow Hashfuko (SHA-256) ud Fuko zu Sgauvaldug (ECDSA) sow Zufallszahlgao ud Zusadsmasch sd dafü fodlch. M Sofwa-Wkzug s s möglch, all ob bschb Sch zum Igässchuz umzusz ud Ewcklugspozss zu g. Wd d Maßahm sysmasch vz Suugssysm g, lass sch d Vol vo Idus 4.0 uz, oh d Rsk zu höh. D ob bschb Maßahm sch zuächs mal jds zl Sysm ud dss Kofguaosda ud Sofwa ab. Nu Pookoll d Auomasugschk w OPC UA sh "Scuy" bfalls vo ud möglch b vz Sysm vschlüssl Kommukao ud Auhfzug d vz Kompo. Bass d Vschlüsslug ud Auhfzug sd auch h symmsch ud asymmsch Kypogaph. Nuz ma d "Scu Elms" d Embddd Sysm opmal, so kö s sowohl fü Kow-how- ud Igäs-Schuz als auch fü Kommukao ud Auhfzug guz wd Daschuz - Smulao - Bbsalag A Smulao of Docum Dco Mhods ad Rducg Fals Posvs fo Pva Sam Sachg. Ohl, Mchal; Phaak, Dhaajay S. I: DPM, Iaoal Wokshop o Daa Pvacy Maagm, 8, SETOP, Iaoal Wokshop o Auoomous ad Spoaous Scuy, 6, : Lcu Nos Compu Scc * Bad 8247 (2014) S (9 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _22 Pva sam sachg s a sysm of cypogaphc mhods ha povd a sach facly whl psvg h cofdaly of h sach ca ad machg docums. Ths sach aalyzs h ogal documao dco mhod of h pva sach sysm, dfs a w dco mhod basd o a appdd hash, ad pss a aalyss of fals posvs occug boh mhods. Ou mhod offs a low fals posv a ha po 13 IT-Schh

17 wok, ad gas samlssly o a mplmao of pva sam sachg. Spg-Vlag. Rpoducd wh pmsso Ifasuku - Fhlmldug - Eschlüsslug SoK: Lssos Lad fom SSL/TLS Aacks. My, Chsoph; Schwk, Jög I: WISA, Iaoal Wokshop o Ifomao Scuy Applcaos, 14, : Lcu Nos Compu Scc * Bad 8267 (2014) S (21 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _12 Sc s oduco 1994 h Scu Sock Lay (SSL) poocol (la amd o Taspo Lay Scuy (TLS)) volvd o h d faco sadad fo scug h aspo lay. SSL/TLS ca b usd fo sug daa cofdaly, gy ad auhcy dug aspo. A ma fau of h poocol s flxbly: Mods of opao ad scuy ams ca asly b cofgud hough dff cph sus. Howv, dug h voluoay dvlopm sval flaws w foud. Ths pap pss a ovvw o hocal ad paccal aacks of h las 17 yas, choologcal od ad fou cagos: Aacks o h Hadshak poocol, o h Rcod ad Applcao Daa Poocols, o h PKI fasucu ad vaous oh aacks. W y o gv a sho "Lsso(s) Lad" a h d of ach paagaph. Spg-Vlag. Rpoducd wh pmsso Vschlüsslug - Ghmhalug - Sma-Ka Pfomac Evaluao of Pmvs fo Pvacy-Ehacg Cypogaphy o Cu Sma-Cads ad Sma-Phos. Hajy, Ja; Mala, Lukas; Maask, Zdk; Thal, Odj I: DPM, Iaoal Wokshop o Daa Pvacy Maagm, 8, SETOP, Iaoal Wokshop o Auoomous ad Spoaous Scuy, 6, : Lcu Nos Compu Scc * Bad 8247 (2014) S (17 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _2 Th pap dals wh h mplmao ad bchmakg of cypogaphc pmvs o compoay sma-cads ad sma-phos. Th goal of h pap s o aalyz h dmads of oday's commo hocal cypogaphc cosucos usd pvacy-hacg schms ad o fd ou whh hy ca b paccally mplmd o offh-shlf hadwa. W valua h pfomac of all majo plafoms of pogammabl sma-cads (JavaCads,.NET cads ad MulOS cads) ad h fc Adod dvcs (a abl ad wo sma-phos). Th fudamal cypogaphc pmvs fquly usd advacd cypogaphc cosucos, such as us-cc abubasd poocols ad aoymous cdal sysms, a valuad. I addo, w show how ou suls ca b usd fo h smao of h pfomac of xsg ad fuu cypogaphc poocols. Thfo, w povd o oly bchmaks of all mod pogammabl sma-cad plafoms bu also a ool fo h pfomac smao of pvacy-hacg schms whch a basd o popula zo-kowldg poof of kowldg poocols. Spg- Vlag. Rpoducd wh pmsso Pay-TV - Vschlüsslug - öfflch Schlüssl Impovm o a Mul-Chal Boadcas Ecypo Schm. Zhao, Xg-W; L, Hu I: Mchacal Egg, Idusal Elcocs ad Ifomao Tchology Applcaos Idusy, MEIEI, Iaoal Cofc o Mchacal Egg, Idusal Elcocs ad Ifomazao, 2, : Appld Mchacs ad Maals * Bad (2013) S (7 S) Züch: Tas Tch Publcaos hp://dx.do.og/ / hp:// Boadcas cypo povds a cov mhod o dsbu dgal co o subscbs ov a scu boadcas chal so ha oly h qualfd uss ca cov h daa. I som boadcas cypo basd sysms such as pay-tv, mulpl cphx hads (va mulpl chals) a dd sc h sd ds o sd vaous cos o dff goups of subscbs. Each cv ds o so all hads od o swch chal fluly. Rcly, Pha al. dscbd a mul-chal boadcas cypo schm, whch h sd capsulas mulpl phmal kys o o cphx had so ha ach cv oly sos o cphx had ad sll ca cov vaous phmal kys fo dff cos. W ps a mpovm o h schm, whch wll duc h sz of publc ky ad h compuao cos fo dcypo. Th mpovd schm ca b usd o cosuc ffc dyamcally pvlgd boadcas cypo sysm. Tas Tch Publcaos. Rpoducd wh pmsso. 14 IT-Schh

18 Vschlüsslug - Amplud - Eschlüsslug Opcal mag cypo va vs gg of a modfd amplud-phas val-basd aack. Wag, Xaogag; Da, Chaoqg; Ch, Julag I: Opcs Commucaos * Bad 328 (2014) S (6 S, 29 Qull) hp://dx.do.og/ /j.opcom By vs-gg h modfd amplud-phas val-basd aack ha has dcphd h phas-ucad doubl adom phas codg schm, w poposd a w cyposysm o cod a ag mag o a pslcd fak mag usg a modfd phas val algohm ud h famwok of phas-ucad doubl adom phas codg. Wh wo pva kys ha a gad dug h cypo, h dcypo ca b opcally alzd usg a classcal la doubl adom phas codg mhod. Th poposd cyposysm has mmuy agas h cly poposd spcfc aack ad h w aack basd o a modfd amplud-phas val algohm. Numcal suls a psd o dmosa h valdy ad good pfomac of ou poposd algohm. Elsv B.V. Rpoducd wh pmsso Malwa - Dbsahlschug - Makug O h Effccy of Mahmacs Iuso Dco: Th NEopy Cas. Goubaul-Lacq, Ja; Olva, Jul I: FPS, Iaoal Symposum of Foudaos ad Pacc of Scuy, 6, : Lcu Nos Compu Scc * Bad 8352 (2014) S 3-16 (14 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _1 NEopy s a plug o h Ochds uso dco ool ha s ogally ma o dc som subl aacks o mplmaos of cypogaphc poocols such as SSL/TLS. Nopy compas h sampl opy of a daa sam o a kow pofl, ad flags ay sgfca vaao. Ou po s o sss h mahmacs bhd Nopy: h aso of h ah cdbl pcso of Nopy s o b foud homs du o Pask ad Moddmj. Spg-Vlag. Rpoducd wh pmsso Sgau - Compu-Modll - Pvasphä Compuaoal Soudss of Symbolc Bld Sgaus ud Acv Aack. Sakuada, Hdk I: FPS, Iaoal Symposum of Foudaos ad Pacc of Scuy, 6, : Lcu Nos Compu Scc * Bad 8352 (2014) S (17 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _15 Bld sgau schms abl uss o oba sgaus o xs whou valg h xs o sgs. Thy a of usd o povd aoymy poocols such as lcoc cash ad vog poocols. To cofm h scuy of such a vog schm, Km ad Rya mploy a symbolc modl fo poocols ha us bld sgaus. Howv, h soudss of hs modl wh spc o h compuaoal modl whch scuy of bld sgaus s dfd s y o b xplod. I hs pap, w dscuss ca dffculs volvd sablshg h compuaoal soudss of h symbolc modl, popos a alav symbolc modl, ad show s compuaoal soudss. Spg- Vlag. Rpoducd wh pmsso E-Mal - Fallsud - Vschlüsslug Dyamc Suvllac: A Cas Sudy wh Eo Emal Daa S. Do, Hsug; Cho, P; L, Hjo I: WISA, Iaoal Wokshop o Ifomao Scuy Applcaos, 14, : Lcu Nos Compu Scc * Bad 8267 (2014) S (19 S) Cham: Spg Iaoal Publshg hp://dx.do.og/ / _6 Suvllac s a ccal masu o bak aoymy. Whl suvllac wh ulmd soucs s of assumd as a mas, agas whch, o dsg sog aoymy algohms, hs pap addsss h gal mpac of lmd souc o suvllac ffccy. Th gal mpac of lmd souc o dfyg a hdd goup s xpmally sudd; h ask of dfcao s oly do by followg commucaos bw suspcs,.., h fomao of whos alkg o whom. Th suvllac uss smpl bu uv algohms o u mo llgc wh lmd souc. Th suvllac subjc usd hs wok s h publcly avalabl Eo mal daa s, a acual ac of huma aco. Th al xpcao was ha, v wh lmd souc, uv suvllac algohms would u h hgh llgc ha a adom appoach by xplog h gal pops of pow law-syl commucao map. To h coay, h mpac of lmd souc was foud lag o h x ha uv algohms do o u sgfcaly hgh llgc ha a adom appoach. Spg-Vlag. Rpoducd wh pmsso. 15 IT-Schh

19 Gäschh - physkalsch Scuy - Valdug Scuy of Dvc-Idpd Quaum Ky Dsbuo Poocols. Dhaa, Chag; Masas, Llus; Poo, Sfao; Ac, Aoo I: TQC, Cofc o Thoy of Quaum Compuao, Commucao, ad Cypogaphy, 6, : Lcu Nos Compu Scc * Bad 6745 (2014) S (10 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _2 Dvc-dpd cypogaphy ps h sogs fom of physcal scuy: s basd o gal physcal laws ad dos o qu ay dald kowldg o cool of h physcal dvcs usd h poocol. W dscuss a gal scuy poof vald fo a lag class of dvc-dpd quaum ky dsbuo poocols. Th poof ls o h valdy of Quaum Thoy ad qus ha h vs gag h aw ky a causally dscocd. W h apply h poof o h chad Bll quals ad compu h cospodg sc-ky as. Spg-Vlag. Rpoducd wh pmsso Embddd-Sysm - Vglchsaalys - Podukoskos Lghwgh Cypogaphy fo Embddd Sysms - A Compaav Aalyss. Mafavas, Chaalampos; Hazvasls, Gog; Fysaaks, Kosaos; Raos, Kosaos I: DPM, Iaoal Wokshop o Daa Pvacy Maagm, 8, SETOP, Iaoal Wokshop o Auoomous ad Spoaous Scuy, 6, : Lcu Nos Compu Scc * Bad 8247 (2014) S (17 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _21 As compug bcoms pvasv, mbddd sysms a dployd a wd ag of domas, cludg dusal sysms, ccal fasucus, pva ad publc spacs as wll as poabl ad waabl applcaos. A gal pa of h fucoaly of hs sysms s h soag, accss ad asmsso of pva, ssv o v ccal fomao. Thfo, h cofdaly ad gy of h soucs ad svcs of sad dvcs cosus a pom ssu ha mus b cosdd dug h dsg. Th s a vay of cypogaphc mchasms whch ca b usd o safguad h cofdaly ad gy of sod ad asmd fomao. I h cox of mbddd sysms, howv, h poblm a had s xacbad by h souc-cosad au of h dvcs, cojuco wh h pss d fo small sz ad low poduco coss. Ths pap povds a compaav aalyss of lghwgh cypogaphc algohms applcabl o such dvcs, psg c advacs h fld fo symmc ad asymmc algohms as wll as hash fucos. A classfcao ad valuao of h schms s also povdd, ulzg lva mcs od o assss h suably fo vaous yps of mbddd sysms. Spg-Vlag. Rpoducd wh pmsso dgal Hologaph - dgals Wasszch - Vschlüsslug Applcao of Radom Amplud-Phas Opcal Ecypo Basd o Nomal Spckl Pa Ifc Dgal Wamakg. Ch, Lu; Gu, J-Hua; Wu, W-Mg; Guo, Ja-Xg I: Mchacal Egg, Idusal Elcocs ad Ifomao Tchology Applcaos Idusy, MEIEI, Iaoal Cofc o Mchacal Egg, Idusal Elcocs ad Ifomazao, 2, : Appld Mchacs ad Maals * Bad (2013) S (6 S) Züch: Tas Tch Publcaos hp://dx.do.og/ / hp:// I od o solv h poblms of complx pocss of dcypo ad hgh cos wh shfg h ky cods of opcal cypd wamak, a mhod of applyg doubl adom amplud-phas cypo o dgal wamakg s oducd. Th cypd ESPI wamak s obad by adom amplud-phas opcal cypo basd o omal spckl fc. A cypd Fou asfom-espi wamakg schm ad a cypd dgal hologaphy-espi wamakg schm a oducd. Compu Smulao suls show h fasbly of h w schms. Th compad suls of mag pocssg show ha h cypd ESPI wamak has good compably wh combd wh Fou asfom wamakg ad dgal hologaphc wamakg. Tas Tch Publcaos. Rpoducd wh pmsso. 16 IT-Schh

20 asymmsch Schlüssl - öfflch Schlüssl - Awdugspogamm A Scu Ky Maagm Ifac wh Asymmc Cypogaphy. Daubgad, Mao; Lubcz, Davd; Sl, Gaham I: POST, Pcpls of Scuy ad Tus. Thd Iaoal Cofc, 3, ETAPS, Jo Euopa Cofcs o Thoy ad Pacc of Sofwa, 2014, : Lcu Nos Compu Scc * Bad 8414 (2014) S (20 S) Bl, Hdlbg: Spg Bl Hdlbg hp://dx.do.og/ / _4 Cypogaphc dvcs such as Hadwa Scuy Moduls a oly as scu as h applcao pogammg facs (APIs) ha off cypogaphc fucoaly o h ousd wold. Dsg flaws ad mplmao os scuy APIs hav b show o caus vulabls ha may lak scs such as kys ad PINs. Idally, w would lk o dsg such facs such a way ha w ca fomally pov scuy pops, v h psc of som coupd kys. I hs wok, w popos h fs such povably scu fac o suppo asymmc ky opaos fo ky maagm: Cach ad Chada's scu ok fac suppos asymmc ky opaos oly fo cypg ad sgg daa, bu o fo maagg kys, whl Co ad Sl hadl oly symmc kys. Du o h fac ha ayo ca cyp ud a publc ky, od o scu gy of h kys ud maagm, w mus cosd cofdaly ad gy pops spaaly ad povd suppo fo classcal opaos of publc ky fasucu (.g. cfcao of publc kys). Spg-Vlag. Rpoducd wh pmsso Chaoom - baubas Pogamm - Vaulchk Vaulch kommuz m OTR. Kubzl, Js I: Chmz Lux-Tag, 2013 * (2013) S (9 S, Bld, 8 Qull) hp://b-solvg.d/u:b:d:bsz:ch1-qucosa Nach ld Ausfühug zu OTR (Off-h-Rcod mssagg) ud Kläug wchg Bgff (Vschlüsslug, Auhfzug, Bsbak, Pfc Fowad Sccy (zuglch Zl vo OTR)), bfass sch d Auo m d Fukosws vo OTR. OTR komb folgd kypogafsch Algohm, um d ga Zl zu ch: Dff-Hllma-Schlüsslausausch, Dgal Sgau Algohm (DSA), Advacd Ecypo Sadad (AES), Scu Hash Algohm (SHA), Kyd-Hash Mssag Auhcao Cod (HMAC). Das OTR-Pookoll wd m Akl vküz Vaa dagsll. OTR s vo voh a k bsmm Sofwa gbud. Im Folgd klä d Auo xmplasch am Bspl ds Chapogamms Pdg d Sch zu Kommukao m OTR, ggld w folg: OTR-Usüzug fü Pdg (Abb.: Auflsug d Plugs vo Pdg), Schlüssl zug (Abb.: Ezugug s laglbg Schlüssls) sow Vaulch Gspäch bg (Abbldug: uauhos Kommukao; Vfkao ds Ggübs). Zusammfassd wd fsgsll, dass sch OTR sgsam sh gu all Chapogamm g. Es s wchg Baus d sch Kommukao ud soll vo jdm gsz wd Auhfzug - Nzwkaack - Compu-Lsug Aoymous auhcao poocol basd o llpc cuv Dff-Hllma fo wlss accss woks. Hsh, W-B; Lu, Jq-Shou I: Wlss Commucaos ad Mobl Compug * Bad 14 (2014) Hf 10, S (12 S) hp://dx.do.og/ /wcm.2252 Aoymous chal cks hav b poposd as a way o povd us aoymy ad o duc h ovhad of -auhcao fo auhcao wlss voms. Ch al. poposd a scu ad ffc poocol, basd o a poocol poposd by Yag al., whch s ssa o gussg aacks o woks fom whch uss' sc kys a asy o oba. Howv, h schm s m-cosumg h phass of ck ssug ad auhcao. Fuhmo, a malcous aack ca ulz h xpd m, T xp, o lauch a dal of auhcao (DoA) aack, whch s a yp of dal of svc aack. Bcaus T xp s xposd o ay us, would b asy o lauch a DoA aack ha could mak h schm mpaccal. To ss agas DoAs ha h schm of Ch al. mgh suff, w popos a mpovd schm basd o llpc cuv cypogaphy hs pap. Ou schm o oly ducs m cos bu also hacs scuy. Th bass of h poposd schm s h llpc cuv dsc logahm poblm. Th opaos of pos of a llpc cuv a fas ad us fw bs o achv h sam lvl of scuy. Thfo, ou schm s mo suabl fo mobl dvcs, whch hav lmd compug pow ad soag. 17 IT-Schh