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The area of computational cryptography is dedicated to the development of effective methods in algorithmic number theory that improve implementation of cryptosystems or further their cryptanalysis. This book is a tribute to Arjen K. Lenstra, one of the key contributors to the field, on the occasion of his 65th birthday, covering his best-known scientific achievements in the field. Students and security engineers will appreciate this no-nonsense introduction to the hard mathematical problems used in cryptography and on which cybersecurity is built, as well as the overview of recent advances on how to solve these problems from both theoretical and practical applied perspectives. Beginning with polynomials, the book moves on to the celebrated Lenstra-Lenstra-Lovász lattice reduction algorithm, and then progresses to integer factorization and the impact of these methods to the selection of strong cryptographic keys for usage in widely used standards.

Cryptography. --- Criptografia --- Cryptanalysis --- Cryptology --- Secret writing --- Steganography --- Signs and symbols --- Symbolism --- Writing --- Ciphers --- Data encryption (Computer science) --- Escriptura secreta --- Escriptura --- Símbols --- Xifratge (Informàtica)

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Data protection --- Computer science --- Law and legislation. --- Mathematics. --- Computer mathematics --- Electronic data processing --- Mathematics --- Habeas data --- Privacy, Right of --- Xifratge (Informàtica) --- Protecció de dades --- Protecció de dades personals --- Protecció de la informació (Informàtica) --- Regulació de dades --- Processament de dades --- Seguretat informàtica --- Delegats de protecció de dades --- Dret a l'oblit --- Identitat digital --- Criptografia (Informàtica) --- Criptografia (Matemàtica) --- Criptologia --- Encriptació (Informàtica) --- Encriptació de dades (Informàtica) --- Esteganografia --- Llenguatges xifrats --- Xifratge de dades (Informàtica) --- Signatures electròniques --- Criptografia --- Generadors de nombres aleatoris --- Nombres primers --- Símbols

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In the 1970s researchers noticed that radioactive particles produced by elements naturally present in packaging material could cause bits to flip in sensitive areas of electronic chips. Research into the effect of cosmic rays on semiconductors, an area of particular interest in the aerospace industry, led to methods of hardening electronic devices designed for harsh environments. Ultimately various mechanisms for fault creation and propagation were discovered, and in particular it was noted that many cryptographic algorithms succumb to so-called fault attacks. Preventing fault attacks without sacrificing performance is nontrivial and this is the subject of this book. Part I deals with side-channel analysis and its relevance to fault attacks. The chapters in Part II cover fault analysis in secret key cryptography, with chapters on block ciphers, fault analysis of DES and AES, countermeasures for symmetric-key ciphers, and countermeasures against attacks on AES. Part III deals with fault analysis in public key cryptography, with chapters dedicated to classical RSA and RSA-CRT implementations, elliptic curve cryptosystems and countermeasures using fault detection, devices resilient to fault injection attacks, lattice-based fault attacks on signatures, and fault attacks on pairing-based cryptography. Part IV examines fault attacks on stream ciphers and how faults interact with countermeasures used to prevent power analysis attacks. Finally, Part V contains chapters that explain how fault attacks are implemented, with chapters on fault injection technologies for microprocessors, and fault injection and key retrieval experiments on a widely used evaluation board. This is the first book on this topic and will be of interest to researchers and practitioners engaged with cryptographic engineering.

Computer engineering. --- Computer science. --- Computers -- Access control. --- Data encryption (Computer science). --- Engineering & Applied Sciences --- Computer Science --- Data protection. --- Cryptography. --- Cryptanalysis --- Cryptology --- Secret writing --- Steganography --- Data governance --- Data regulation --- Personal data protection --- Protection, Data --- Computer hardware. --- Data structures (Computer science). --- Electrical engineering. --- Computer Science. --- Data Structures, Cryptology and Information Theory. --- Computer Hardware. --- Electrical Engineering. --- Electronic data processing --- Signs and symbols --- Symbolism --- Writing --- Ciphers --- Data encryption (Computer science) --- Data structures (Computer scienc. --- Data Structures and Information Theory. --- Computers --- Design and construction --- Electric engineering --- Engineering --- Information structures (Computer science) --- Structures, Data (Computer science) --- Structures, Information (Computer science) --- File organization (Computer science) --- Abstract data types (Computer science) --- Criptografia. --- Avaries --- Localització. --- Errors de sistemes (Enginyeria) --- Enginyeria de sistemes --- Fiabilitat (Enginyeria) --- Escriptura secreta --- Escriptura xifrada --- Escriptura --- Simbolisme --- Símbols --- Xifratge (Informàtica) --- Xifres i claus --- Esteganografia

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This book constitutes the proceedings of the 19th International Conference on Smart Card Research and Advanced Applications, CARDIS 2020, which took place during November 18-20, 2020. The conference was originally planned to take place in Lübeck, Germany, and changed to an online format due to the COVID-19 pandemic. The 12 full papers presented in this volume were carefully reviewed and selected from 26 submissions. They were organized in topical sections named: post-quantum cryptography; efficient implementations; and physical attacks.

Data encryption (Computer science). --- Computer security. --- Special purpose computers. --- Application software. --- Computer communication systems. --- Cryptology. --- Systems and Data Security. --- Special Purpose and Application-Based Systems. --- Information Systems Applications (incl. Internet). --- Computer Communication Networks. --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Application computer programs --- Application computer software --- Applications software --- Apps (Computer software) --- Computer software --- Special purpose computers --- Computers --- Computer privacy --- Computer system security --- Computer systems --- Cyber security --- Cybersecurity --- Electronic digital computers --- Protection of computer systems --- Security of computer systems --- Data protection --- Security systems --- Hacking --- Data encoding (Computer science) --- Encryption of data (Computer science) --- Computer security --- Cryptography --- Distributed processing --- Protection --- Security measures --- Smart cards --- Cards, Smart --- Chip cards --- IC cards --- Integrated circuit cards --- Memory cards --- Computer storage devices --- Expansion boards (Microcomputers) --- Near-field communication --- Criptografia --- Seguretat informàtica --- Targetes intel·ligents --- Targetes amb circuits integrats --- Targetes chip --- Sistemes de seguretat --- Microprocessadors --- Informàtica (Seguretat) --- Mesures de seguretat (Informàtica) --- Seguretat (Informàtica) --- Seguretat dels sistemes informàtics --- Protecció de dades --- Control d'accés als ordinadors --- Seguretat de les xarxes d'ordinadors --- Xifratge (Informàtica) --- Pirates informàtics --- Escriptura secreta --- Escriptura --- Símbols

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Il est permis d’interdire ! Un plaidoyer pour une neutralité de l’État au contenu juridique clairement définiLe principe de neutralité est, en Belgique, source de constantes polémiques dans la société, le monde politique et l’univers juridique. Le débat se focalise sur le port des signes convictionnels et particulièrement sur celui du foulard islamique. Se posent des questions de principe dont la plus importante est de savoir si la liberté de religion doit bénéficier d’un traitement privilégié par rapport aux autres droits et libertés et si la lutte contre les discriminations consiste à permettre à chacun d’adopter le comportement qui épouse au plus près ses convictions ou s’il faut édicter des règles générales applicables à tous impliquant des concessions réciproques.L’auteur analyse cette question à travers la jurisprudence des juridictions suprêmes nationales et internationales, dans l’enseignement, l’administration publique, le secteur privé et l’espace public. Sa conclusion sur le port des signes convictionnels est sans appel : « Il est permis d’interdire ». La Belgique, pays dans lequel il n’existe pas de religion d’État, place sur le même pied la liberté de culte et la liberté de manifester ses opinions en toute matière. Ce qui est autorisé ou interdit au nom de la liberté de la religion doit l’être au nom de n’importe quelle opinion philosophique, politique ou idéologique.Au-delà de la réflexion sur le port de signes convictionnels, l’auteur, qui s’autorise quelques digressions sur des épisodes nationaux, sur le modèle français ou sur le modèle canadien, explore les contours de neutralité de l’État en Belgique, en ce qu’elle se différencie de la laïcité à la Française. Sa conclusion est nette : le modèle belge est carbonisé. Au regard de la jurisprudence internationale, l’autorité publique ne peut plus s’autoriser à financer certains cultes, et ne pas en financer d’autres. Il ne peut plus non plus être question de réserver un sort favorable au culte catholique qui n’a d’autre légitimité – et une légitimité bien insuffisante – que son ancrage historique.L’auteur estime qu’il convient désormais de traduire dans la Constitution non seulement la primauté de la loi civile sur la loi religieuse, mais également une neutralité de l’État au contenu juridique clairement défini, à savoir la liberté de chacun de vivre, dans la sphère intime, dans le respect de ses convictions religieuses ou philosophiques et l’interdiction de toute ingérence de l’État dans les cultes. L’État est le bien de tous. Il doit être neutre et impartial dans son action comme dans son apparence, dans ses contacts avec les citoyens comme dans son fonctionnement interne.

BPB9999 --- BPB2302 --- neutralité --- science juridique --- Belgique --- symbole religieux --- État --- idéologie politique --- droits fondamentaux --- administration publique --- јавна администрација --- viešasis valdymas --- amministrazzjoni pubblika --- offentlig forvaltning --- pubblica amministrazione --- administración pública --- јавна управа --- overheidsadministratie --- public administration --- valsts pārvalde --- veřejná správa --- riarachán poiblí --- offentlig förvaltning --- administratë publike --- administrație publică --- javna uprava --- administracja publiczna --- държавна администрация --- öffentliche Verwaltung --- közigazgatás --- administração pública --- štátna správa --- δημόσια διοίκηση --- avalik haldus --- julkinen hallinto --- државна администрација --- valstybės valdymas --- hatóság --- P.A. --- státní správa --- viešasis administravimas --- general government --- Behörde --- riigihaldus --- органи на јавната администрација --- kormányhivatalok --- orgány státní správy --- државна управа --- qeveri e përgjithshme --- riiklikud haldusorganid --- direitos fundamentais --- drittijiet fundamentali --- pamattiesības --- temeljne pravice --- grundläggande rättigheter --- индивидуални права --- grondrechten --- derechos fundamentales --- cearta bunúsacha --- Grundrechte --- temeljna prava --- основни права --- fundamental rights --- základné práva --- pagrindinės teisės --- drepturi fundamentale --- perusoikeudet --- diritti fondamentali --- θεμελιώδη δικαιώματα --- лична права --- grundlæggende rettigheder --- prawa podstawowe --- të drejtat e individit --- alapvető jogok --- základní práva --- põhiõigused --- rechten van het individu --- isiku õigused --- yksilön oikeudet --- gëzimi i të drejtave politike --- fundamental freedom --- rechten van de burger --- liberdades essenciais --- egyének jogai --- asmens teisės --- liberté fondamentale --- personlig frihed --- Grundfreiheiten --- pagrindinė laisvė --- perusvapaudet --- liri personale --- persönliche Freiheit --- openbare vrijheden --- prava građana --- piliečių teisės --- základní svobody --- osobná sloboda --- права на индивида --- direitos do indivíduo --- personlig frihet --- pamatintereses --- diritti del cittadino --- forfatningsmæssig frihedsrettighed --- derecho del individuo --- libertad individual --- personligt retsværn --- лични права и слободи --- libertades fundamentales --- лични права --- grundläggande friheter --- ατομικές ελευθερίες --- βασικές ελευθερίες --- liri themelore --- fri- och rättigheter --- права на поединците --- alapvető szabadságok --- liberté publique --- põhivabadused --- isiku vabadus --- liberdades públicas --- drittijiet tal-individwu --- права на индивидуата --- diritti della persona --- libertà fondamentali --- libertà individuale --- уживање политички права --- personenrecht --- protezione del cittadino --- pilsoņu tiesības --- pravice posameznika --- práva jednotlivce --- základné slobody --- ατομικά δικαιώματα --- persoonlijke vrijheid --- θεμελιώδεις ελευθερίες --- derecho de la personalidad --- Persönlichkeitsrecht --- naudojimasis politinėmis teisėmis --- libertà pubbliche --- rights of the individual --- poliittisten oikeuksien nautinta --- drepturile individului --- personal freedom --- individuell frihet --- indivīda tiesības --- práva osobnosti --- derechos constitucionales --- droit de la personnalité --- személyes szabadságjogok --- diritto della personalità --- poliitiliste õiguste omamine --- polgári szabadságjogok --- práva jednotlivca --- alapvető szabadságjogok --- individets rettigheder --- individens rättigheter --- využívanie politických práv --- droit de l'individu --- liberdade individual --- politisko tiesību esamība --- pamatbrīvības --- kodaniku õigused --- yksilön vapaus --- liberdade fundamental --- prava pojedinca --- bescherming van de burger --- cearta an duine aonair --- diritto dell'individuo --- fundamentele vrijheid --- enjoyment of political rights --- direito dos cidadãos --- pilntiesīgs pilsonis --- të drejta themelore --- liberté individuelle --- Recht des Einzelnen --- citizens' rights --- temeljne slobode --- основни права и слободи --- Freiheit der Person --- üksikisiku õigused --- asmens laisvė --- të drejtaë e shtetasve --- práva občanov --- prawa jednostki --- personas tiesības --- poliittinen ideologia --- politična ideologija --- politinė ideologija --- politische Ideologie --- ideologia politica --- ideologia política --- ideologji politike --- ideología política --- politická ideologie --- politická ideológia --- ideologie politică --- politieke ideologie --- πολιτική ιδεολογία --- политичка идеологија --- ideologia polityczna --- political ideology --- политическа идеология --- politikai ideológia --- politička ideologija --- politiskā ideoloģija --- idé-eolaíocht pholaitiúil --- politisk ideologi --- poliitiline ideoloogia --- ideolġija politika --- dottrina politica --- politiskā doktrīna --- политичка доктрина --- politická doktrína --- politische Doktrin --- politička doktrina --- doctrină politică --- politieke leer --- politické smýšlení --- doutrina política --- politický názor --- politische Auffassung --- politikai tan --- politikai doktrína --- politické přesvědčení --- poliittinen doktriini --- poliitiline doktriin --- ideologie --- πολιτική θεωρία --- doctrina política --- politisk doktrin --- politinė doktrina --- politieke doctrine --- politische Lehre --- credo politico --- doctrine politique --- political doctrine --- doktrinë politike --- Stat --- държава --- állam --- štát --- држава --- κράτος --- Staat --- staat --- Shtet --- država --- riik --- Estado --- valsts --- valtio --- Stato --- valstybė --- State --- stát --- stat --- państwo --- земја --- nation --- κυρίαρχο κράτος --- ανεξάρτητο κράτος --- nação --- simbol fetar --- simbolo religioso --- vjerski simbol --- simbolu reliġjuż --- religieus symbool --- religiøst symbol --- siombail reiligiúnach --- reliģisks simbols --- религиозен символ --- religinis simbolis --- religiöses Symbol --- verski simbol --- θρησκευτικό σύμβολο --- religious symbol --- uskonnollinen vertauskuva --- symbol religijny --- símbolo religioso --- simbol religios --- religiös symbol --- vallási jelkép --- религиозен симбол --- náboženský symbol --- religioosne sümbol --- sinjal reliġjuż --- sinal religioso --- Religionssymbol --- vjerski znak --- религиозен знак --- reliģiska zīme --- religieus attribuut --- shenjë fetare --- vallási szimbólum --- religioosne riietus --- ένδυμα καλόγριας --- symbole (religion) --- vjerska odjeća --- odzież religijna --- религиозна облека --- religiöse Kleidung --- religiös klädsel --- uskonnollinen symboli --- uskonnollinen merkki --- indumentária religiosa --- religiniai drabužiai --- vallási kötődést kifejező ruhadarab --- ένδυμα μοναχού --- religieus teken --- semn religios --- vêtement religieux --- verska oblačila --- θρησκευτικό ένδυμα --- abito religioso --- religious sign --- religiøs beklædning --- segno religioso --- religious clothing --- náboženský odev --- veshje fetare --- religinis ženklas --- религиозна дреха --- náboženský znak --- znak religijny --- reliģiski apģērbi --- religieuze kleding --- îmbrăcăminte religioasă de rit --- signe religieux --- uskonnollinen pukeutuminen --- náboženský oděv --- ilbies reliġjuż --- religiøst tegn --- Belgium --- Bélgica --- Belgija --- Belgien --- Belgie --- Belgicko --- België --- Beļģija --- Белгија --- Belgio --- Белгия --- Belgia --- il-Belġju --- An Bheilg --- Βέλγιο --- Belgjika --- Belgia Kuningriik --- Beļģijas Karaliste --- Royaume de Belgique --- Belgian kuningaskunta --- Belgické kráľovstvo --- Koninkrijk België --- Belgijos Karalystė --- das Königreich Belgien --- Βασίλειο του Βελγίου --- Kingdom of Belgium --- Кралство Белгија --- Краљевина Белгија --- Belgické království --- Reino de Bélgica --- ir-Renju tal-Belġju --- Regatul Belgiei --- Kongeriget Belgien --- Кралство Белгия --- Mbretëria e Belgjikës --- Belga Királyság --- Królestwo Belgii --- Konungariket Belgien --- Reino da Bélgica --- Kraljevina Belgija --- Regno del Belgio --- pravna znanost --- shkencë juridike --- tiesību zinātne --- jogtudomány --- právní věda --- Rechtswissenschaft --- teisės mokslas --- drept --- eolaíocht dhlíthiúil --- xjenza tad-dritt --- juridische wetenschap --- právna veda --- oikeustiede --- scienze giuridiche --- rättsvetenskap --- õigusteadus --- правна наука --- legal science --- retsvidenskab --- νομική επιστήμη --- nauka prawa --- ciencia jurídica --- ciência jurídica --- δίκαιο --- jog --- jura --- diritto --- ligj --- právo --- juridik --- pravo --- наука за правото --- věda o právu --- law --- право --- tieslietas --- droit --- Recht --- Derecho --- jurisprudence --- теорија на право --- recht --- ret --- neutraliteit --- neodracht --- neutralnost --- neutralidade --- neutralita --- neutralitetas --- neitralitāte --- neutraliteet --- неутралност --- neutralità --- newtralità --- nevtralnost --- Neutralität --- puolueettomuus --- neutralidad --- neutralność --- неутралитет --- neutralitet --- neutralitate --- neutrality --- semlegesség --- ουδετερότητα --- neutraal land --- ουδέτερη χώρα --- neutralt land --- politiskā neitralitāte --- puolueeton maa --- semleges ország --- país neutro --- nestrannost --- neutralismo --- ochranná mocnost --- neutralità perpetua --- neutrali šalis --- paese neutrale --- neutrálna krajina --- neutraalne riik --- neutrální mocnost --- neutralisme --- ουδετεροφιλία --- неутрална држава --- neutraler Staat --- pays neutre --- țări neutre --- país neutral --- neutral country --- neutrální země --- neutralna zemlja --- vend neutral --- neitrāla valsts --- Religion and state --- Laicism --- Civil rights --- Religious observances on public property --- Hijab (Islamic clothing) --- Comparative law --- Religion et Etat --- Laïcité --- Droits de l'homme --- Expression religieuse dans l'espace public --- Ḥijāb --- Voiles islamiques --- Droit comparé --- Law and legislation --- Droit --- Religion et État --- Religion et droit --- Laïcité --- Signes et symboles --- Religion dans les espaces publics --- Bemlgique