LEADER 04039nam 22005895 450 001 9910298990503321 005 20200701160547.0 010 $a3-658-07116-8 024 7 $a10.1007/978-3-658-07116-5 035 $a(CKB)3710000000228756 035 $a(EBL)1965677 035 $a(OCoLC)890694285 035 $a(SSID)ssj0001353806 035 $a(PQKBManifestationID)11810414 035 $a(PQKBTitleCode)TC0001353806 035 $a(PQKBWorkID)11315403 035 $a(PQKB)10520837 035 $a(MiAaPQ)EBC1965677 035 $a(DE-He213)978-3-658-07116-5 035 $a(PPN)181348713 035 $a(EXLCZ)993710000000228756 100 $a20140902d2014 u| 0 101 0 $aeng 135 $aur|n|---||||| 181 $ctxt 182 $cc 183 $acr 200 10$aAuthentication in Insecure Environments$b[electronic resource] $eUsing Visual Cryptography and Non-Transferable Credentials in Practise /$fby Sebastian Pape 205 $a1st ed. 2014. 210 1$aWiesbaden :$cSpringer Fachmedien Wiesbaden :$cImprint: Springer Vieweg,$d2014. 215 $a1 online resource (365 p.) 300 $aDescription based upon print version of record. 311 $a3-658-07115-X 320 $aIncludes bibliographical references and index. 327 $aMathematical and Cryptographic Foundation -- Human Decipherable Encryption Schemes: Introduction, Scenario, and Related Work - Human Decipherable Encryption Scheme - Encryption Schemes Based on Dice Codings - Conclusion and Future Work -- Non-Transferable Anonymous Credentials: Introduction, Scenario, and Related Work - Privacy and Data Security - Analysis of Non-Transferable Anonymous Credentials - Conclusion and Future Work -- Outlook and Appendix. 330 $aSebastian Pape discusses two different scenarios for authentication. On the one hand, users cannot trust their devices and nevertheless want to be able to do secure authentication. On the other hand, users may not want to be tracked while their service provider does not want them to share their credentials. Many users may not be able to determine whether their device is trustworthy, i.e. it might contain malware. One solution is to use visual cryptography for authentication. The author generalizes this concept to human decipherable encryption schemes and establishes a relationship to CAPTCHAS. He proposes a new security model and presents the first visual encryption scheme which makes use of noise to complicate the adversary's task. To prevent service providers from keeping their users under surveillance, anonymous credentials may be used. However, sometimes it is desirable to prevent the users from sharing their credentials. The author compares existing approaches based on non-transferable anonymous credentials and proposes an approach which combines biometrics and smartcards.  Contents Human Decipherable Encryption Schemes Visual Cryptography Non-Transferable Anonymous Credentials Authentication  Target Groups Teachers, students and practitioners in the fields of cryptography and IT security  About the Author Dr. Sebastian Pape is postdoctoral researcher at the Chair of Software Engineering at Technical University Dortmund. 606 $aData structures (Computer science) 606 $aComputers 606 $aData Structures and Information Theory$3https://scigraph.springernature.com/ontologies/product-market-codes/I15009 606 $aInformation Systems and Communication Service$3https://scigraph.springernature.com/ontologies/product-market-codes/I18008 615 0$aData structures (Computer science). 615 0$aComputers. 615 14$aData Structures and Information Theory. 615 24$aInformation Systems and Communication Service. 676 $a004 676 $a005.7 676 $a005.74 700 $aPape$b Sebastian$4aut$4http://id.loc.gov/vocabulary/relators/aut$0904553 906 $aBOOK 912 $a9910298990503321 996 $aAuthentication in Insecure Environments$92022604 997 $aUNINA