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E-Mail: crypto-info(at)iti.kit.edu

Aktuelles

Interview mit Jörn Müller-Quade zur IT-Sicherheit in Zeiten der KI

KASTEL-Sprecher Prof. Jörn Müller-Quade gab auf dem Digitalgipfel dem HPI-Digitalblog ein Interview über IT-Sicherheit in Zeiten von Künstlicher Intelligenz. Dabei ging er insbesondere auf die Kryptographie zur Vorbeugung von Cyberangriffen ein. Ebenfalls Thema ist die Künstliche Intelligenz zur Verhinderung der Angriffe. Dabei sei auch das Zusammenspiel von künstlicher Intelligenz und Mensch interessant, da dadurch auf Angriffe und Verwundbarkeiten aufmerksam gemacht werden könne, die sonst nicht aufgefallen wären.

KASTEL-Mitarbeiter erzielt ersten Platz beim CAST-Förderpreis für IT-Sicherheit

Am 29.11.18 wurde zum 18. Mal der CAST-Förderpreis IT-Sicherheit an herausragende Arbeiten auf dem Gebiet der IT- und Informationssicherheit verliehen.
Beim diesjährigen CAST-Preis konnte sich Herr Michael Klooß in der Kategorie Masterarbeiten mit seiner Arbeit "On the Efficiency of Non-Interactive Zero-Knowledge Proof Systems" durchsetzen.
Herr Klooß fertigte seine Arbeit in der KASTEL-Nachwuchsgruppe "CyPhyCrypt" an in welcher er aktuell als Doktorand tätig ist

Molekülabfolge als Passwort

Jeder hat sie in mehreren Ausführungen und in unterschiedlichen Sicherheitsstufen: Passwörter. Sie gelten als Schutz wichtiger Daten und sind aus unserem Leben nicht wegzudenken. Wurde das Passwort jedoch gestohlen, erraten oder errechnet liegen diese vermeintlich geschützten Daten offen. KIT- und ITI-Mitarbeiter  arbeiten derzeit an einer neuen Idee: der Verschlüsselung durch organische Moleküle. In der Abfolge der einzelnen Bausteine soll das Passwort als Binärcode verschlüsselt werden.

21. E-Voting Kolloquium in Karlsruhe

Am 9.-10.April 2018 findet am Karlsruher Institut für Technologie das 21. E-Voting Kolloquium statt. Die seit 2006 europaweit stattfindende Tagung thematisiert verschiedene Aspekte des E-Voting wie rechtliche Hürden, Identitätsmanagement, technische Aspekte und die Verifizierung der Wahl. Die Veranstaltung wird von Prof. Dr. Bernhard Beckert, Prof. Dr. Jörn Müller-Quade und Prof. Dr. Melanie Volkamer sowie Dr. Oskana Kulyk mitorganisiert.

Die Arbeit eines Kryptologen

Am 02.Februar wurde ITI-Mitarbeiter Andy Rupp in die Podcast-Reihe „Resonator“  ,einen Audio-Podcast der Helmholtz-Gemeinschaft Deutscher Forschungszentren aufgenommen. Die Podcast-Reihe befasst sich mit Forscherinnen, Forschern und deren Themengebieten. Andy Rupp gibt Aufschluss über die Arbeit eines Theoretikers an Systemen wie Bonuskarten oder Mautsystemen, die die Privatsphäre der User schützen können. Zum Podcast .

Lernende Systeme - Die Plattform für künstliche Intelligenz

KIT-Präsident Holger Hanselka und ITI-Professor Jörn Müller-Quade sind an der BMBF-initiierten Plattform Lernende System beteiligt. Die Plattform soll dazu beitragen, künstliche Intelligenz im Sinne von Mensch und Gesellschaft zu gestalten und so die Lebensqualität zu verbessern. Während der KIT Präsident im Lenkungskreis wirkt, ist Herr Müller-Quade Leiter der Arbeitsgruppe 3, die Fragen zu den Gebieten Sicherheit, Zuverlässigkeit und dem Umgang mit Privatheit thematisiert. Weitere Infos zur Plattform  und zur Arbeitsgruppe .

Datenschleuder Smartphone

Das Smartphone sammelt Daten- immer und überall. Doch was genau das Gerät alles aufzeichnet und wer alles an diese Daten kommen kann ist den meisten nicht bewusst. In der Landesschau Baden-Württemberg erschien am 29.01.2018 ein Beitrag zu diesem Thema , der auch ITI-Mitarbeiter Professor Jörn Müller-Quade als Experten zu diesem Thema befragt.

Link zum Beitrag

The ProSecCo Project.

Welcome to the ProSecCo Project.

Project partners

E.I.S.S., Universität Karlsruhe1.1.2003 - 31.12.2005
DAMPT, Cambridge University1.1.2003 - 31.12.2005
Aarhus Universitet1.1.2003 - 31.12.2005
Ludwig-Maximulians-Universität, München1.1.2003 - 31.8.2004
Universität Innsbruck1.9.2004 - 31.12.2004

Objectives of the project

The idea is to use small scale distributed secure quantum computations to accomplish tasks which are impossible classically. Secure computations allow the participants to jointly compute a function on inputs they hold locally and ensure the correctness of the result and the privacy of the inputs. Everyday examples are authentication, voting schemes, or online auctions. The project will develop new distributed quantum applications and analyse their security against quantum faults/attacks. Such protocols will probably be among the first applications of quantum technology. A further scientific motivation is that new quantum protocols as well as new impossibility theorems will elucidate the borderline between tasks which can be securely implemented quantumly but not classically, and tasks for which physical security guarantees are impossible - A key problem in the field.

Publications

  • Dennis Hofheinz, and Jörn Müller-Quade, and Dominique Unruh.
    On the (Im-)Possibility of Extending Coin Toss.
    in Advances in Cryptology, Proceedings of EUROCRYPT '06, Lecture Notes in Computer Science, Springer, pp. 504-521, 2006. Preprint on IACR ePrint 2006/177.
    Abstract | PS | PS.GZ | PDF | BibTeX ]
  • J. Oppenheim.
    Dynamics as a free fall.
    2006. To appear in Science, Feb. 24, solicited perspective.
    BibTeX ]
  • Thomas B. Pedersen.
    Quantum Encryption Minimising Key Leakage under Known Plaintext Attacks.
    Ph. D. thesis, University of Aarhus, 2006.
    BibTeX ]
  • C. Kruszynska, and S. Anders, and W. Dür, and H.-J. Briegel.
    Quantum communication cost of preparing multipartite entanglement.
    2005. Preprint on quant-ph/0512218.
    Abstract | PS | PDF | BibTeX ]
  • L. Hartmann, and W. Dür, and H.-J. Briegel.
    Steady state entanglement in open and noisy quantum systems at high temperature.
    2005. Preprint on quant-ph/0512219.
    Abstract | PS | PDF | BibTeX ]
  • R. König, and R. Renner, and A. Bariska, and U. Maurer.
    Locking of accessible information and implications for the security of quantum cryptography.
    2005. Submitted to PRL.
    BibTeX ]
  • D. K. Oi and J. Oppenheim.
    Temperature anisotropy at equilibrium.
    2005. Submitted to PRL.
    BibTeX ]
  • Dominique Unruh.
    Relations among Statistical Security Notions - or - Why Exponential Adversaries are Unlimited.
    2005. Preprint on IACR ePrint 2005/406.
    Abstract | PS | PS.GZ | PDF | BibTeX ]
  • J. Oppenheim, and R. W. Spekkens, and A. Winter.
    A classical analogue of negative information.
    To appear in Phys. Rev. Lett, preprint on quant-ph/0511247.
    Abstract | PS | PDF | BibTeX ]
  • J. Oppenheim and A. Winter.
    Uncommon information.
    Submitted to Phys. Rev. Lett., preprint on quant-ph/0511082.
    Abstract | PS | PDF | BibTeX ]
  • G. Toth, and O. Gühne, and H.-J. Briegel.
    Two-setting Bell inequalities for graph states.
    2005. Preprint on quant-ph/0510007.
    Abstract | PS | PDF | BibTeX ]
  • J. Rigas, and O. Gühne, and N. Lütkenhaus.
    Entanglement verification for quantum key distribution systems with an underlying bipartite qubit-mode structure.
    2005. Preprint on quant-ph/0510022.
    Abstract | PS | PDF | BibTeX ]
  • O. Gühne and G. Toth.
    Energy and multipartite entanglement in spin models.
    2005. Preprint on quant-ph/0510186.
    Abstract | PS | PDF | BibTeX ]
  • M. Horodecki, and J. Oppenheim, and A. Winter.
    Quantum state merging and negative information.
    2005. Submitted to Comm. Math. Phys., preprint on quant-ph/0512247.
    Abstract | PS | PDF | BibTeX ]
  • Karol Horodecki, and Debbie Leung, and Hoi-Kwong Lo, and Jonathan Oppenheim.
    Quantum key distribution based on arbitrarily-weak distillable entangled states.
    To appear in Phys. Rev. Lett., preprint on quant-ph/0510067.
    Abstract | PS | PDF | BibTeX ]
  • Jörn Müller-Quade.
    Temporary Assumptions---Quantum and Classical.
    in Proceedings of the 2005 IEEE Information Theory Workshop On Theory and Practice in Information Theoretic Security, pp. 31-33, October 2005.
    BibTeX ]
  • Christian Schaffner, and Ivan Damgård, and Serge Fehr, and Louis Salvail.
    Cryptography in the Bounded Quantum Storage Model.
    in Proceedings of the 46th annual IEEE Symposium on Foundations of Computer Science (FOCS'05), 2005.
    BibTeX ]
  • Michael Backes, and Dennis Hofheinz, and Jörn Müller-Quade, and Dominique Unruh.
    On Fairness in Simulatability-based Cryptographic Systems.
    in 3rd ACM Workshop on Formal Methods in Security Engineering: From Specifications to Code, pp. 13-22, September 2005. Preprint on IACR ePrint 2005/294.
    Abstract | PS | PS.GZ | PDF | BibTeX ]
  • Dennis Hofheinz and Dominique Unruh.
    On the Notion of Statistical Security in Simulatability Definitions.
    in Information Security, Proceedings of ISC'05, Lecture Notes in Computer Science, Springer, September 2005. Preprint on IACR ePrint 2005/032.
    Abstract | PS | PS.GZ | PDF | BibTeX ]
  • Roger Colbeck and Adrian Kent.
    Variable Bias Coin Tossing.
    2005. Preprint on quant-ph/0508149, revised version, submitted to Phys Rev A.
    Abstract | PS | PDF | BibTeX ]
  • Ivan Damgård, and Thomas Pedersen, and Louis Salvail.
    A Quantum Cipher with Near Optimal Key-Recycling.
    in Advances in Cryptology, Proceedings of CRYPTO'05, Lecture Notes in Computer Science, Springer-Verlag, pp. 494-510, 2005.
    BibTeX ]
  • John Smolin and Jonathan Oppenheim.
    Information locking in black holes.
    To appear in Phys. Rev. Lett., preprint on hep-th/0507287.
    Abstract | PS | PDF | BibTeX ]
  • Dominique Unruh.
    Quantum Programs with Classical Output Streams.
    Electronic Notes in Theoretical Computer Science, Elsevier Science Publishers, 2005. 3rd International Workshop on Quantum Programming Languages, to be published.
    Abstract | PS | BibTeX ]
  • M. Horodecki, and J. Oppenheim, and A. Winter.
    Partial quantum information.
    Nature, 436:673-676, 2005. Preprint on quant-ph/0505062.
    Abstract | PS | PDF | BibTeX ]
  • Th. Beth, and J. Müller-Quade, and R. Steinwandt.
    Cryptanalysis of a Practical Quantum Key Distribution With Polarization-Entangled Photons.
    Quantum Information and Computation, 5:181-186, 2005. Preprint on quant-ph/0407130.
    Abstract | PS | PDF | BibTeX ]
  • S. Anders and H.-J. Briegel.
    Fast simulation of stabilizer circuits using a graph state representation.
    2005. Preprint on quant-ph/0504117, to appear in Phys. Rev. A.
    Abstract | PS | PDF | BibTeX ]
  • J. Calsamiglia, and L. Hartmann, and W. Dür, and H.-J. Briegel.
    Entanglement and decoherence in spin gases.
    2005. Preprint on quant-ph/0502017, to appear in the International Journal of Quantum Information.
    Abstract | PS | PDF | BibTeX ]
  • O. Gühne, and G. Toth, and H.-J. Briegel.
    Multipartite entanglement in spin chains.
    New J. Phys., 7:229, 2005. Preprint on quant-ph/0502160.
    Abstract | PS | PDF | BibTeX ]
  • M. Ben-Or, and M. Horodecki, and D. Leung, and D. Mayers, and J. Oppenheim.
    The universal composable security of quantum key distribution.
    in Theory of Cryptography, Second Theory of Cryptography Conference, Springer, pp. 386-406, 2005. Preprint on quant-ph/0409078.
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and H.-J. Briegel, and P. Zoller.
    Purification and Distillation,.
    2005. Submitted to Lectures on Quantum Information, eds. D. Bruss and G. Leuchs.
    BibTeX ]
  • W. Dür and H.-J. Briegel.
    Quantum Repeater.
    2005. Submitted to Lectures on Quantum Information, eds. D. Bruss and G. Leuchs.
    BibTeX ]
  • M. Hein, and W. Dür, and J. Eisert, and R. Raussendorf, and M. Van den Nest, and H.-J. Briegel.
    Entanglement in graph states and its applications.
    2005. Submitted to the International School of Physics Enrico Fermi on Quantum Computers, Algorithms and Chaos, Varenna, Italy.
    BibTeX ]
  • G. Toth and O. Gühne.
    Detection of multipartite entanglement with two-body correlations.
    2005. To appear in Applied Phys. B..
    BibTeX ]
  • O. Gühne, and G. Toth, and Ph. Hyllus, and H.-J. Briegel.
    Bell Inequalities for Graph States.
    Phys. Rev. Lett., 95:120405, 2005. Preprint on quant-ph/0410059.
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and J. Calsamiglia, and H.-J. Briegel.
    Multipartite secure state distribution.
    Phys. Rev. A, 71:042336, 2005.
    Abstract | BibTeX ]
  • A. Miyake and H.-J. Briegel.
    Distillation of multipartite entanglement by complementary stabilizer measurements.
    Phys. Rev. Lett., 95:220501, 2005.
    BibTeX ]
  • H. Häffner, and W. Hänsel, and C. F. Roos, and J. Benhelm, and D. Chek-al-kar, and M. Chwalla, and T. Körber, and U. Rapol, and M. Riebe, and P. O. Schmidt, and C. Becher, and O. Gühne, and W. Dür, and R. Blatt.
    Scalable multi-particle entanglement of trapped ions.
    Nature, 438:643-646, 2005.
    Abstract | BibTeX ]
  • W. Dür, and M. Hein, and J. I. Cirac, and H.-J. Briegel.
    Standard forms of noisy quantum operations via depolarization.
    Phys. Rev. A, 72:052326, 2005.
    BibTeX ]
  • C.-E. Mora and H.-J. Briegel.
    Algorithmic complexity and entanglement of quantum states.
    Phys. Rev. Lett., 95:200503, 2005.
    BibTeX ]
  • J. M. Taylor, and W. Dür, and P. Zoller, and A. Yacoby, and C. M. Marcus, and M. D. Lukin.
    Solid-state circuit for spin entanglement generation and purification.
    Phys. Rev. Lett., 94:236803, 2005.
    BibTeX ]
  • J. M. Taylor, and H.-A. Engel, and W. Dür, and A. Yacoby, and C. M. Marcus, and P. Zoller, and M. D. Lukin.
    Fault-tolerant architecture for quantum computation using electrically controlled semiconductor spins.
    Nature Physics, 1:177-183, 2005.
    Abstract | BibTeX ]
  • J. Calsamiglia, and L. Hartmann, and W. Dür, and H.-J. Briegel.
    Spin gases: Quantum entanglement driven by classical kinematics.
    Phys. Rev. Lett., 95:180502, 2005.
    BibTeX ]
  • L. Hartmann, and J. Calsamiglia, and W. Dür, and H.-J. Briegel.
    Spin gases as microscopic models for non-Markovian decoherence.
    Phys. Rev. A, 72:052107, 2005.
    BibTeX ]
  • M. Hein, and W. Dür, and H.-J. Briegel.
    Entanglement properties of multipartite entangled states under the influence of decoherence.
    Phys. Rev. A, 71:032350, 2005. Preprint on quant-ph/0408165.
    Abstract | PS | PDF | BibTeX ]
  • H. Aschauer, and W. Dür, and H.-J. Briegel.
    Multiparticle entanglement purification for two-colorable graph states.
    Phys. Rev. A, 71:012319, 2005. Preprint on quant-ph/0405045.
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and L. Hartmann, and M. Hein, and M. Lewenstein, and H.-J. Briegel.
    Entanglement in spin chains and lattices with long-range Ising-type interactions.
    Phys. Rev. Lett., 94:097203, 2005. Preprint on quant-ph/0407075.
    Abstract | PS | PDF | BibTeX ]
  • M. Curty, and O. Gühne, and M. Lewenstein, and N. Lütkenhaus.
    Detecting two-party quantum correlations in quantum key distribution protocols.
    Phys. Rev. A, 71:022306, 2005.
    Abstract | BibTeX ]
  • M. Horodecki, and P. Horodecki, and R. Horodecki, and J. Oppenheim, and A. Sen, and U. Sen, and B. Synak.
    Local versus non-local information in quantum information theory: formalism and phenomena.
    Phys. Rev. A, 71:062307, 2005. To appear in Phys. Rev. A, preprint on quant-ph/0410090.
    Abstract | PS | PDF | BibTeX ]
  • K. Horodecki, and M. Horodecki, and P. Horodecki, and J. Oppenheim.
    Secure key from bound entanglement.
    Phys. Rev. Lett., 94:160502, 2005. Preprint on quant-ph/0309110.
    Abstract | PS | PDF | BibTeX ]
  • P. Horodecki, and K. Horodecki, and M. Horodecki, and J. Oppenheim.
    Locking entanglement measures by a single qubit.
    Phys. Rev. Lett., 94:200501, 2005. Preprint on quant-ph/0404096.
    Abstract | PS | PDF | BibTeX ]
  • Dominik Raub, and Rainer Steinwandt, and Jörn Müller-Quade.
    On the Security and Composability of the One Time Pad.
    2005. Accepted at the 31st Annual Conference on Current Trends in Theory and Practice of Informatics SOFSEM 2005, Lecture Notes in Computer Science, Springer, preprint on IACR ePrint 2004/113.
    Abstract | PS | PS.GZ | PDF | BibTeX ]
  • A. Kent, and R. Beausoleil, and W. Munro, and T. Spiller.
    Sharing Of A Secret Key Over A Quantum Channel With Guarantees Against Eavesdropping.
    Published patent, US patent application US20050036624, 2005.
    BibTeX ]
  • Adrian Kent.
    Nonlinearity without superluminality.
    Phys. Rev. A, 72:012108, 2005. Reprinted in Virtual Journal of Quantum Information, 5, issue 8 (2005).
    BibTeX ]
  • Adrian Kent.
    Causal quantum theory and the collapse locality loophole.
    Phys. Rev. A, 72:012107, 2005. Reprinted in Virtual Journal of Nanoscale Science and Technology, 12, issue 4 (2005).
    BibTeX ]
  • A. Kent.
    Secure Classical Bit Commitment using Fixed Capacity Communication Channels.
    Journal of Cryptology, 18:313-335, 2005.
    BibTeX ]
  • J. Barrett, and L. Hardy, and A. Kent.
    No Signalling and Quantum Key Distribution.
    Phys. Rev. Lett., 95:010503, 2005. Reprinted in Virtual Journal of Quantum Information, 5, issue 7, 2005, highlighted paper of the week in Physical Review Focus, 30 June 2005.
    BibTeX ]
  • C. Mora and H.-J. Briegel.
    Algorithmic complexity of quantum states.
    2004. Preprint on quant-ph/0412172.
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and J. Calsamiglia, and H.-J. Briegel.
    Multipartite secure state distribution.
    2004. To appear in Phys. Rev. A, preprint on quant-ph/0411209.
    Abstract | PS | PDF | BibTeX ]
  • Dominique Unruh.
    Simulatable security for quantum protocols.
    September 2004. Preprint on quant-ph/0409125.
    Abstract | PS | PDF | BibTeX ]
  • Dominique Unruh.
    Classical Control in Quantum Programs.
    5th European QIPC Workshop, Roma, September 2004. Poster.
    Abstract | CorelDraw | PDF | PNG | BibTeX ]
  • Dominique Unruh.
    Relating formal security for classical and quantum protocols.
    Isaac Newton Institute for Mathematical Sciences, Cambridge (UK), Workshop on Quantum Information Science, September 2004. Invited Talk.
    Abstract | PDF | PowerPoint | BibTeX ]
  • J. Oppenheim and B. Reznik.
    A probabilistic and information theoretic interpretation of quantum evolution.
    Phys. Rev. A, 70:022312, 2004.
    Abstract | Download | BibTeX ]
  • Michal Horodecki, and Jonathan Oppenheim, and Aditi Sen De, and Ujjwal Sen.
    Distillation protocols: Output entanglement and local mutual information.
    Phys. Rev. Lett., 93:170503, 2004. Preprint on quant-ph/0405185.
    Abstract | PS | PDF | BibTeX ]
  • Jonathan Barrett, and Lucien Hardy, and Adrian Kent.
    No signalling and quantum key distribution.
    Preprint on quant-ph/0405101, submitted to Phys. Rev. Lett..
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and J. I. Cirac, and P. Horodecki.
    Non-additivity of quantum capacity for multiparty communication channels.
    Phys. Rev. Lett., 93:020503, 2004. Preprint on quant-ph/0403068.
    Abstract | PS | PDF | BibTeX ]
  • Shay Mozes, and Benni Reznik, and Jonathan Oppenheim.
    Not So SuperDense Coding - Deterministic Dense Coding with Partially Entangled States.
    Phys. Rev. A, 71:012311, 2004. Preprint on quant-ph/0403189.
    Abstract | PS | PDF | BibTeX ]
  • H. Imai, and J. Müller-Quade, and A. Nascimento, and P. Tuyls, and A. Winter.
    An information theoretical model for quantum secret sharing schemes.
    Quantum Information & Computation (QIC), 5(1):068-079, January 2004. Preprint on quant-ph/0311136.
    Abstract | PS | PDF | BibTeX ]
  • H. Aschauer, and J. Calsamiglia, and M. Hein, and H.-J. Briegel.
    Local invariants for multi-partite entangled states, allowing for a simple entanglement criterion.
    Quant. Inf. Comp., 4:383, 2004.
    BibTeX ]
  • K. Horodecki, and M. Horodecki, and P. Horodecki, and J. Oppenheim.
    Information theories with adversaries, intrinsic information, and entanglement.
    2004. To appear in special issue of Found. Phys. in honor of the 70th birthday of Asher Peres. ed. C. Fuchs.
    BibTeX ]
  • J. Oppenheim and M. Horodecki.
    How to reuse a one-time pad and other notes on authentication, encryption and protection of quantum information.
    2004. To appear in Phys. Rev. A.
    BibTeX ]
  • J. Oppenheim.
    The spectrum of quantum black holes and quasinormal modes.
    Phys. Rev. D, 69:044012, 2004.
    Abstract | Download | BibTeX ]
  • M. Horodecki, and J. Oppenheim, and A. Winter.
    Quantum Localisation.
    2004. To be presented at QIP January, 2005, and submitted to Nature.
    BibTeX ]
  • Lucien Hardy and Adrian Kent.
    Cheat Sensitive Quantum Bit Commitment.
    Phys. Rev. Lett., 92:157901, 2004.
    Abstract | BibTeX ]
  • Ivan Damgård, and Thomas Pedersen, and Louis Salvail.
    On the Key-Uncertainty of Quantum Ciphers and the Computational Security of One-Way Quantum Transmission.
    in Advances in Cryptology, Proceedings of EUROCRYPT'04, Lecture Notes in Computer Science, Springer-Verlag, pp. 91-108, 2004.
    Abstract | BibTeX ]
  • Ivan Damgård, and Serge Fehr, and Louis Salvail.
    Zero-Knowledge Proofs and String Commitments Withstanding Quantum Attacks.
    in Proceedings of Advances in Cryptology - CRYPTO 2004, Lecture Notes in Computer Science, Springer-Verlag, pp. 254-272, 2004.
    Abstract | BibTeX ]
  • Claude Crépeau, and Paul Dumais, and Dominic Mayers, and Louis Salvail.
    Computational Collapse of Quantum State with Application to Oblivious Transfer.
    in Theory of Cryptography, Proceedings of TCC 2004, Lecture Notes in Computer Science, Springer-Verlag, pp. 374-393, 2004.
    Abstract | BibTeX ]
  • P. Arrighi and L. Salvail.
    Blind Quantum Computation.
    2003. Preprint on quant-ph/0309152.
    Abstract | PS | PDF | BibTeX ]
  • D. Hofheinz and J. Müller-Quade.
    A paradox of quantum universal composability.
    Poster at the 4th European QIPC Workshop, 2003, 2003. Abstract online at www.quiprocone.org/Oxford/Abstracts.htm.
    PDF | BibTeX ]
  • Dominique Unruh.
    Zufallsextraktoren für Quellen variierender Qualität.
    Master's thesis, Institut für Algorithmen und Kognitive Systeme, University of Karlsruhe, July 2003.
    Abstract | PS.GZ | BibTeX ]
  • W. Dür and H.-J. Briegel.
    Stability of macroscopic entanglement under decoherence.
    Phys. Rev. Lett., 92:180403, 2004. Preprint on quant-ph/0307180.
    Abstract | PS | PDF | BibTeX ]
  • M. Hein, and J. Eisert, and H.-J. Briegel.
    Multi-party entanglement in graph states.
    Phys. Rev. A, 69:062311, 2004. Preprint on quant-ph/0307130.
    Abstract | PS | PDF | BibTeX ]
  • W. Dür, and H. Aschauer, and H.-J. Briegel.
    Multiparticle Entanglement Purification for Graph States.
    Phys. Rev. Lett., 91:107903, 2003. Preprint on quant-ph/0303087.
    Abstract | PS | PDF | BibTeX ]
  • A. Kent.
    Proposal for Founding Mistrustful Quantum Cryptography on Coin Tossing.
    Phys. Rev. A, 68:012312, 2003.
    BibTeX ]
  • A. Kent.
    Quantum Bit String Commitment.
    Phys. Rev. Lett., 90:237801, 2003.
    BibTeX ]