About: Challenge–response authentication

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In computer security, challenge–response authentication is a family of protocols in which one party presents a question ("challenge") and another party must provide a valid answer ("response") to be authenticated. The simplest example of a challenge–response protocol is password authentication, where the challenge is asking for the password and the valid response is the correct password.

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rdf:type	yago:WikicatAuthenticationMethods yago:WikicatCryptographicProtocols yago:Ability105616246 yago:Abstraction100002137 yago:Cognition100023271 yago:Communication100033020 yago:Direction106786629 yago:Know-how105616786 yago:Message106598915 yago:Method105660268 yago:Protocol106665108 yago:PsychologicalFeature100023100 yago:Rule106652242
rdfs:label	Challenge-response (cs) Challenge-Response-Authentifizierung (de) Challenge–response authentication (en) Protocolos desafío-respuesta (es) Erronka-erantzun autentifikazio (eu) Authentification défi-réponse (fr) Challenge response-authenticatie (nl) Вызов-ответ (аутентификация) (ru)
rdfs:comment	Challenge-response (výzva-odpověď) je v informatice výměna informací mezi dvěma stranami komunikace, kdy jedna strana vyzve otázkou druhou stranu (anglicky challenge) k poskytnutí správné odpovědi (anglicky response), aby mohlo dojít k autentizaci přístupu. (cs) Los protocolos desafío-respuesta (en inglés challenge-response protocol) son una familia de protocolos que permiten la autenticación de entidades mediante el siguiente sistema: 1. * Una parte (verificador) presenta una cuestión (desafío) 2. * La parte que se quiere autenticar recibe la cuestión y elabora una respuesta que envía al verificador 3. * El verificador recibe la respuesta y evalúa si la respuesta responde correctamente a la cuestión, y por tanto la entidad que envió la respuesta queda autenticado, o no. (es) In computer security, challenge–response authentication is a family of protocols in which one party presents a question ("challenge") and another party must provide a valid answer ("response") to be authenticated. The simplest example of a challenge–response protocol is password authentication, where the challenge is asking for the password and the valid response is the correct password. (en) Das Challenge-Response-Verfahren (übersetzt etwa Aufforderung-Antwort-Verfahren) ist ein sicheres Authentifizierungsverfahren eines Teilnehmers auf Basis von Wissen. Hierbei stellt ein Teilnehmer eine Aufgabe (engl. challenge), die der andere lösen muss (engl. response), um zu beweisen, dass er eine bestimmte Information (gemeinsames Geheimnis) kennt, ohne diese Information selber zu übertragen. Dies ist ein Schutz dagegen, dass das Passwort von Angreifern auf der Leitung mitgehört werden kann. (de) Zibersegurtasunean, erronka-erantzun autentifikazioa (ingelesez Challenge-response authentication) protokolo-familia bat da. Alde batek galdera bat ("challenge") aurkezten du eta beste alderdiak baliozko erantzuna ("response") eman behar du autentikatu ahal izateko. Erronka-erantzun protokoloaren adibiderik errazena pasahitza autentifikatzea da, non erronkak pasahitza eskatzen duen eta erantzun balaigarria pasahitza zuzena den. (eu) En sécurité informatique, l'authentification défi-réponse (aussi appelé authentification challenge-réponse ; en anglais, Challenge-response authentication) est une famille de protocoles dans lesquels une partie présente une question (le défi) et une autre partie doit fournir une réponse valide (la réponse) pour être authentifiée. L'exemple le plus simple d'un protocole défi-réponse est l'authentification par mot de passe, où le défi est de demander le mot de passe et la réponse valide est le mot de passe correct. (fr) Een challenge response-authenticatie is een verzamelwoord voor verschillende computerprotocollen waarbij een partij de vraag (challenge) stelt en de andere partij het antwoord (response) geeft, om zichzelf te authenticeren tegenover de eerste partij. Dit wordt ook wel one-way-authenticatie genoemd, omdat er maar een partij is die zich authenticeert. Situaties waarbij twee partijen elkaar authenticeren worden ook wel two-way authenticatie genoemd. (nl) Вызов-ответ (англ. Challenge-response authentication; вызов-отклик) — способ аутентификации, при котором секрет (в данном случае пароль) не передаётся по каналу связи. Простейший способ такой аутентификации (при хранении паролей в открытом виде): Если значения хешей совпадают, то аутентификация считается успешной. (ru)
dcterms:subject	Authentication methods Computer access control
Wikipage page ID	412627 (xsd:integer)
Wikipage revision ID	1116940102 (xsd:integer)
Link from a Wikipage to another Wikipage	Encryption Mutual authentication Password-authenticated key agreement Algorithm Alice and Bob United States Unix Internet Computer security Cryptographic hash function Cryptographically secure pseudorandom number generator SQRL Optical character recognition Plaintext Cryptographic nonce Caesar cipher Communications security Key derivation function Password Authentication Brute-force attack CAPTCHA Turing test WebAuthn Distance-bounding protocol Otway–Rees protocol Dictionary attack Replay attack Authentication methods Computer access control Kerberos (protocol) Eavesdropping Reflection attack CRAM-MD5 RSA (algorithm) Challenge-Handshake Authentication Protocol Challenge–response spam filtering Challenge-handshake authentication protocol Spambot Man-in-the-middle attack Needham–Schroeder protocol Salted Challenge Response Authentication Mechanism Secure Shell Shared secret World Wide Web Wide Mouth Frog protocol Channel (communications) Zero-knowledge password proof Secure remote password protocol Eavesdropper dbr:AKAC-1553
sameAs	Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication Challenge–response authentication
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