Johannes Buchmann

Johannes Buchmann, Erik Dahmen, Sarah Ereth, Andreas Hülsing, Markus Rückert: On the security of the Winternitz one-time signature scheme. IJACT 3(1): 84-96 (2013)

Stanislav Bulygin, Michael Walter, Johannes Buchmann: Many Weak Keys for PRINTcipher: Fast Key Recovery and Countermeasures. CT-RSA 2013: 189-206

Johannes Braun, Alexander Wiesmaier, Johannes Buchmann: On the Security of Encrypted Secret Sharing. HICSS 2013: 4966-4975

Patrick Weiden, Andreas Hülsing, Daniel Cabarcas, Johannes Buchmann: Instantiating Treeless Signature Schemes. IACR Cryptology ePrint Archive 2013: 65 (2013)

Robert Niebuhr, Mohammed Meziani, Stanislav Bulygin, Johannes Buchmann: Selecting parameters for secure McEliece-based cryptosystems. Int. J. Inf. Sec. 11(3): 137-147 (2012)

Michael Kreutzer, Michael Waidner, Johannes Buchmann: IT-Sicherheitsforschung in Darmstadt - von den Grundlagen bis zur Anwendung. Praxis der Informationsverarbeitung und Kommunikation 35(4): 305-308 (2012)

Norman Göttert, Thomas Feller, Michael Schneider, Johannes Buchmann, Sorin A. Huss: On the Design of Hardware Building Blocks for Modern Lattice-Based Encryption Schemes. CHES 2012: 512-529

Mohamed Saied Emam Mohamed, Stanislav Bulygin, Michael Zohner, Annelie Heuser, Michael Walter, Johannes Buchmann: Improved algebraic side-channel attack on AES. HOST 2012: 146-151

Johannes Braun, Johannes Buchmann: Perfect Confidentiality Network: A Solution for Information Theoretically Secure Key Agreement. NTMS 2012: 1-5

Andreas Hülsing, Christoph Busold, Johannes Buchmann: Forward Secure Signatures on Smart Cards. Selected Areas in Cryptography 2012: 66-80

Marc Fischlin, Johannes Buchmann, Mark Manulis (Eds.): Public Key Cryptography - PKC 2012 - 15th International Conference on Practice and Theory in Public Key Cryptography, Darmstadt, Germany, May 21-23, 2012. Proceedings. Lecture Notes in Computer Science 7293, Springer 2012, isbn 978-3-642-30056-1

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: A Multivariate based Threshold Ring Signature Scheme. IACR Cryptology ePrint Archive 2012: 194 (2012)

Johannes Braun, Johannes Buchmann, Ciaran Mullan, Alexander Wiesmaier: Long Term Confidentiality: a Survey. IACR Cryptology ePrint Archive 2012: 449 (2012)

Martín A. Gagliotti Vigil, Daniel Cabarcas, Alexander Wiesmaier, Johannes Buchmann: Authenticity, Integrity and Proof-of-Existence for Long-Term Archiving: a Survey. IACR Cryptology ePrint Archive 2012: 499 (2012)

Johannes Buchmann, Erik Dahmen, Sarah Ereth, Andreas Hülsing, Markus Rückert: On the Security of the Winternitz One-Time Signature Scheme. AFRICACRYPT 2011: 363-378

Stanislav Bulygin, Johannes Buchmann: Algebraic Cryptanalysis of the Round-Reduced and Side Channel Analysis of the Full PRINTCipher-48. CANS 2011: 54-75

Alexander Wiesmaier, Moritz Horsch, Johannes Braun, Franziskus Kiefer, Detlef Hühnlein, Falko Strenzke, Johannes Buchmann: An efficient mobile PACE implementation. ASIACCS 2011: 176-185

Po-Chun Kuo, Michael Schneider, Özgür Dagdelen, Jan Reichelt, Johannes Buchmann, Chen-Mou Cheng, Bo-Yin Yang: Extreme Enumeration on GPU and in Clouds - - How Many Dollars You Need to Break SVP Challenges -. CHES 2011: 176-191

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: Linear Recurring Sequences for the UOV Key Generation. Public Key Cryptography 2011: 335-350

Johannes Buchmann, Erik Dahmen, Andreas Hülsing: XMSS - A Practical Forward Secure Signature Scheme Based on Minimal Security Assumptions. PQCrypto 2011: 117-129

Mohamed Saied Emam Mohamed, Stanislav Bulygin, Johannes Buchmann: Using SAT Solving to Improve Differential Fault Analysis of Trivium. ISA 2011: 62-71

Mohamed Saied Emam Mohamed, Jintai Ding, Johannes Buchmann: Towards Algebraic Cryptanalysis of HFE Challenge 2. ISA 2011: 123-131

Mohamed Saied Emam Mohamed, Jintai Ding, Johannes Buchmann: The Complexity Analysis of the MutantXL Family. IACR Cryptology ePrint Archive 2011: 36 (2011)

Johannes Buchmann, Erik Dahmen, Sarah Ereth, Andreas Hülsing, Markus Rückert: On the Security of the Winternitz One-Time Signature Scheme. IACR Cryptology ePrint Archive 2011: 191 (2011)

Johannes Buchmann, Erik Dahmen, Andreas Hülsing: XMSS - A Practical Forward Secure Signature Scheme based on Minimal Security Assumptions. IACR Cryptology ePrint Archive 2011: 484 (2011)

Lucie Langer, Axel Schmidt, Johannes Buchmann, Melanie Volkamer: A Taxonomy Refining the Security Requirements for Electronic Voting: Analyzing Helios as a Proof of Concept. ARES 2010: 475-480

Jens Hermans, Michael Schneider, Johannes Buchmann, Frederik Vercauteren, Bart Preneel: Parallel Shortest Lattice Vector Enumeration on Graphics Cards. AFRICACRYPT 2010: 52-68

Johannes Buchmann, Daniel Cabarcas, Jintai Ding, Mohamed Saied Emam Mohamed: Flexible Partial Enlargement to Accelerate Gröbner Basis Computation over F₂. AFRICACRYPT 2010: 69-81

Johannes Buchmann, Stanislav Bulygin, Jintai Ding, Wael Said Abd Elmageed Mohamed, Fabian Werner: Practical Algebraic Cryptanalysis for Dragon-Based Cryptosystems. CANS 2010: 140-155

Axel Schmidt, Melanie Volkamer, Johannes Buchmann: An Evaluation and Certification Approach to Enable Voting Service Providers. Electronic Voting 2010: 135-148

Stanislav Bulygin, Albrecht Petzoldt, Johannes Buchmann: Towards Provable Security of the Unbalanced Oil and Vinegar Signature Scheme under Direct Attacks. INDOCRYPT 2010: 17-32

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: CyclicRainbow - A Multivariate Signature Scheme with a Partially Cyclic Public Key. INDOCRYPT 2010: 33-48

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: Selecting Parameters for the Rainbow Signature Scheme. PQCrypto 2010: 218-240

Michael Schneider, Johannes Buchmann: Extended Lattice Reduction Experiments Using the BKZ Algorithm. Sicherheit 2010: 241-252

Robert Niebuhr, Mohammed Meziani, Stanislav Bulygin, Johannes Buchmann: Selecting Parameters for Secure McEliece-based Cryptosystems. IACR Cryptology ePrint Archive 2010: 271 (2010)

Stanislav Bulygin, Albrecht Petzoldt, Johannes Buchmann: Towards provable security of the Unbalanced Oil and Vinegar signature scheme under direct attacks. IACR Cryptology ePrint Archive 2010: 420 (2010)

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: CyclicRainbow - A multivariate Signature Scheme with a Partially Cyclic Public Key based on Rainbow. IACR Cryptology ePrint Archive 2010: 424 (2010)

Albrecht Petzoldt, Stanislav Bulygin, Johannes Buchmann: Selecting Parameters for the Rainbow Signature Scheme - Extended Version -. IACR Cryptology ePrint Archive 2010: 437 (2010)

Johannes Buchmann, Richard Lindner, Markus Rückert, Michael Schneider: Post-quantum cryptography: lattice signatures. Computing 85(1-2): 105-125 (2009)

Johannes Buchmann, Vangelis Karatsiolis: Notification Services for the Server-Based Certificate Validation Protocol. IJCNS 2(5): 378-384 (2009)

Mohamed Saied Emam Mohamed, Jintai Ding, Johannes Buchmann, Fabian Werner: Algebraic Attack on the MQQ Public Key Cryptosystem. CANS 2009: 392-401

Axel Schmidt, Melanie Volkamer, Lucie Langer, Johannes Buchmann: Towards the impact of the operational environment on the security of e-voting. GI Jahrestagung 2009: 1814-1826

Melanie Volkamer, Guido Schryen, Lucie Langer, Axel Schmidt, Johannes Buchmann: Elektronische Wahlen: Verifizierung vs. Zertifizierung. GI Jahrestagung 2009: 1827-1836

Lucie Langer, Axel Schmidt, Melanie Volkamer, Johannes Buchmann: Classifying Privacy and Verifiability Requirements for Electronic Voting. GI Jahrestagung 2009: 1837-1846

Lucie Langer, Melanie Volkamer, Stefan G. Weber, Axel Schmidt, Johannes Buchmann: Towards long-term free and secret electronic elections providing voter-verifiability in the bulletin board model. ICEGOV 2009: 203-210

Mohamed Saied Emam Mohamed, Daniel Cabarcas, Jintai Ding, Johannes Buchmann, Stanislav Bulygin: MXL₃: An Efficient Algorithm for Computing Gröbner Bases of Zero-Dimensional Ideals. ICISC 2009: 87-100

Johannes Buchmann, Richard Lindner: Secure Parameters for SWIFFT. INDOCRYPT 2009: 1-17

Axel Schmidt, Lucie Langer, Johannes Buchmann, Melanie Volkamer: Specification of a Voting Service Provider. REVOTE 2009: 9-18

Lucie Langer, Axel Schmidt, Johannes Buchmann, Melanie Volkamer, Alexander Stolfik: Towards a Framework on the Security Requirements for Electronic Voting Protocols. REVOTE 2009: 61-68

Axel Schmidt, Dennis Heinson, Lucie Langer, Zoi Opitz-Talidou, Philipp Richter, Melanie Volkamer, Johannes Buchmann: Developing a Legal Framework for Remote Electronic Voting. VOTE-ID 2009: 92-105

Albrecht Petzoldt, Johannes Buchmann: A Multivariate Signature Scheme with an almost cyclic public key. IACR Cryptology ePrint Archive 2009: 440 (2009)

Jens Hermans, Michael Schneider, Johannes Buchmann, Frederik Vercauteren, Bart Preneel: Parallel Shortest Lattice Vector Enumeration on Graphics Cards. IACR Cryptology ePrint Archive 2009: 601 (2009)

Sebastian Rohde, Thomas Eisenbarth, Erik Dahmen, Johannes Buchmann, Christof Paar: Fast Hash-Based Signatures on Constrained Devices. CARDIS 2008: 104-117

Johannes Buchmann, Erik Dahmen, Michael Schneider: Merkle Tree Traversal Revisited. PQCrypto 2008: 63-78

Johannes Buchmann, Richard Lindner, Markus Rückert: Explicit Hard Instances of the Shortest Vector Problem. PQCrypto 2008: 79-94

Mohamed Saied Emam Mohamed, Wael Said Abd Elmageed Mohamed, Jintai Ding, Johannes Buchmann: MXL2: Solving Polynomial Equations over GF(2) Using an Improved Mutant Strategy. PQCrypto 2008: 203-215

Johannes Buchmann, Martin Döring, Richard Lindner: Efficiency Improvement for NTRU. Sicherheit 2008: 163-178

Camille Vuillaume, Katsuyuki Okeya, Erik Dahmen, Johannes Buchmann: Public Key Authentication with Memory Tokens. WISA 2008: 84-98

Johannes Buchmann, Jintai Ding (Eds.): Post-Quantum Cryptography, Second International Workshop, PQCrypto 2008, Cincinnati, OH, USA, October 17-19, 2008, Proceedings. Lecture Notes in Computer Science 5299, Springer 2008, isbn 978-3-540-88402-6

Lucie Langer, Axel Schmidt, Johannes Buchmann: Secure Online Elections in Practice. IACR Cryptology ePrint Archive 2008: 157 (2008)

Johannes Buchmann, Richard Lindner, Markus Rückert, Michael Schneider: Explicit hard instances of the shortest vector problem. IACR Cryptology ePrint Archive 2008: 333 (2008)

Mohamed Saied Emam Mohamed, Jintai Ding, Johannes Buchmann: Algebraic Cryptanalysis of MQQ Public Key Cryptosystem by MutantXL. IACR Cryptology ePrint Archive 2008: 451 (2008)

Johannes Buchmann, Richard Lindner: Secure Parameters for SWIFFT. IACR Cryptology ePrint Archive 2008: 493 (2008)

Stefan G. Weber, Roberto Araujo, Johannes Buchmann: On Coercion-Resistant Electronic Elections with Linear Work. ARES 2007: 908-916

Johannes Buchmann, Erik Dahmen, Elena Klintsevich, Katsuyuki Okeya, Camille Vuillaume: Merkle Signatures with Virtually Unlimited Signature Capacity. ACNS 2007: 31-45

Johannes Buchmann, Martin Döring, Richard Lindner: Efficiency Improvement for NTRU. IACR Cryptology ePrint Archive 2007: 263 (2007)

Johannes Buchmann, Alexander May, Ulrich Vollmer: Perspectives for cryptographic long-term security. Commun. ACM 49(9): 50-55 (2006)

Marcus Lippert, Vangelis Karatsiolis, Alexander Wiesmaier, Johannes Buchmann: Life-cycle management of X.509 certificates based on LDAP directories. Journal of Computer Security 14(5): 419-439 (2006)

Johannes Buchmann, Christoph Ludwig: Practical Lattice Basis Sampling Reduction. ANTS 2006: 222-237

Johannes Buchmann, Andrei Pyshkin, Ralf-Philipp Weinmann: Block Ciphers Sensitive to Gröbner Basis Attacks. CT-RSA 2006: 313-331

Sebastian Fritsch, Vangelis Karatsiolis, Marcus Lippert, Alexander Wiesmaier, Johannes Buchmann: Towards Secure Electronic Workflows. EuroPKI 2006: 154-168

Johannes Buchmann, Andrei Pyshkin, Ralf-Philipp Weinmann: A Zero-Dimensional Gröbner Basis for AES-128. FSE 2006: 78-88

Johannes Buchmann, Luis Carlos Coronado García, Erik Dahmen, Martin Döring, Elena Klintsevich: CMSS - An Improved Merkle Signature Scheme. INDOCRYPT 2006: 349-363

Alexander Wiesmaier, Ulrich Rauchschwalbe, Christoph Ludwig, Birgit Henhapl, Markus Ruppert, Johannes Buchmann: Intrinsically Legal-For-Trade Objects by Digital Signatures. Sicherheit 2006: 218-221

Alexander Wiesmaier, Ulrich Rauchschwalbe, Christoph Ludwig, Birgit Henhapl, Markus Ruppert, Johannes Buchmann: Intrinsically Legal-For-Trade Objects by Digital Signatures. CoRR abs/cs/0603011 (2006)

Christina Lindenberg, Kai Wirt, Johannes Buchmann: Formal Proof for the Correctness of RSA-PSS. IACR Cryptology ePrint Archive 2006: 11 (2006)

Johannes Buchmann, Luis Carlos Coronado García, Erik Dahmen, Martin Döring, Elena Klintsevich: CMSS - An Improved Merkle Signature Scheme. IACR Cryptology ePrint Archive 2006: 320 (2006)

Johannes Buchmann, Arthur Schmidt: Computing the structure of a finite abelian group. Math. Comput. 74(252): 2017-2026 (2005)

Alexander Wiesmaier, Marcus Lippert, Vangelis Karatsiolis, Georgios Raptis, Johannes Buchmann: An Evaluated Certification Services System for the German National Root CA - Legally binding and trustworthy Transactions in E-Business and E-Government. CSREA EEE 2005: 103-110

Alexander Wiesmaier, Mike Fisher, Marcus Lippert, Johannes Buchmann: Ouflanking and Securely Using the PIN/TAN-System. Security and Management 2005: 313-319

Tobias Straub, Thilo-Alexander Ginkel, Johannes Buchmann: A Multipurpose Delegation Proxy for WWW Credentials. EuroPKI 2005: 1-21

Marcus Lippert, Evangelos G. Karatsiolis, Alexander Wiesmaier, Johannes Buchmann: Directory Based Registration in Public Key Infrastructures. IWAP 2005: 17-32

Alexander Wiesmaier, Vangelis Karatsiolis, Marcus Lippert, Johannes Buchmann: The Workshop - Implementing Well Structured Enterprise Applications. Software Engineering Research and Practice 2005: 947-

Alexander Wiesmaier, Vangelis Karatsiolis, Marcus Lippert, Johannes Buchmann: The Workshop - Implementing Well Structured Enterprise Applications. CoRR abs/cs/0506050 (2005)

Johannes Buchmann, Christoph Ludwig: Practical Lattice Basis Sampling Reduction. IACR Cryptology ePrint Archive 2005: 72 (2005)

Johannes Buchmann, Andrei Pychkine, Ralf-Philipp Weinmann: Block ciphers sensitive to Groebner Basis Attacks. IACR Cryptology ePrint Archive 2005: 200 (2005)

Vangelis Karatsiolis, Marcus Lippert, Alexander Wiesmaier, A. Pitaev, Markus Ruppert, Johannes Buchmann: Towards a Flexible Intra-Trustcenter Management Protocol. CoRR cs.CR/0411067 (2004)

Johannes Buchmann, Luis Carlos Coronado García, Martin Döring, Daniela Engelbert, Christoph Ludwig, Raphael Overbeck, Arthur Schmidt, Ulrich Vollmer, Ralf-Philipp Weinmann: Post-Quantum Signatures. IACR Cryptology ePrint Archive 2004: 297 (2004)

Johannes Buchmann: Introduction to Cryptography. Springer 2002, isbn 0-387-95034-6

Ingrid Biehl, Johannes Buchmann, Safuat Hamdy, Andreas Meyer: A Signature Scheme Based on the Intractability of Computing Roots. Des. Codes Cryptography 25(3): 223-236 (2002)

Johannes Buchmann: Einführung in die Kryptographie (2. Aufl.). Springer 2001, isbn 978-3-540-41283-0, pp. I-XVI, 1-231

Johannes Buchmann, Kouichi Sakurai, Tsuyoshi Takagi: An IND-CCA2 Public-Key Cryptosystem with Fast Decryption. ICISC 2001: 51-71

Johannes Buchmann, Harald Baier: Efficient Construction of Cryptographically Strong Elliptic Curves. INDOCRYPT 2000: 191-202

Johannes Buchmann, Friedrich Eisenbrand: On factor refinement in number fields. Math. Comput. 68(225): 345-350 (1999)

Johannes Buchmann, Michael J. Jacobson Jr., Edlyn Teske: On some computational problems in finite abelian groups. Math. Comput. 66(220): 1663-1687 (1997)

Johannes Buchmann, Sachar Paulus: A One Way Function Based on Ideal Arithmetic in Number Fields. CRYPTO 1997: 385-394

Johannes Buchmann, Victor Shoup: Constructing nonresidues in finite fields and the extended Riemann hypothesis. Math. Comput. 65(215): 1311-1326 (1996)

Johannes Buchmann, Max Jüntgen, Michael Pohst: A Practical Version of the Generalized Lagrange Algorithm. Experimental Mathematics 3(3): 199-207 (1994)

Renate Scheidler, Johannes Buchmann, Hugh C. Williams: A Key-Exchange Protocol Using Real Quadratic Fields. J. Cryptology 7(3): 171-199 (1994)

Johannes Buchmann: Reducing lattice bases by means of approximations. ANTS 1994: 160-168

Ingrid Biehl, Johannes Buchmann, Christoph Thiel: Cryptographic Protocols Based on Discrete Logarithms in Real-quadratic Orders. CRYPTO 1994: 56-60

Johannes Buchmann, J. Loho, J. Zayer: An Implementation of the General Number Field Sieve. CRYPTO 1993: 159-165

Ingrid Biehl, Johannes Buchmann, Bernd Meyer, Christian Thiel, Christoph Thiel: Tools for Proving Zero Knowledge. EUROCRYPT 1992: 356-365

Johannes Buchmann, Hugh C. Williams: Some remarks concerning the complexity of computing class groups of quadratic fields. J. Complexity 7(3): 311-315 (1991)

Johannes Buchmann: Number Theoretic Algorithms and Cryptology. FCT 1991: 16-21

Johannes Buchmann, Volker Müller: Computing the Number of Points of Elliptic Curves Over Finite Fields. ISSAC 1991: 179-182

Johannes Buchmann, Victor Shoup: Constructing Nonresidues in Finite Fields and the Extended Riemann Hypothesis. STOC 1991: 72-79

Johannes Buchmann, Stephan Düllmann: On the Computation of Discrete Logarithms in Class Groups. CRYPTO 1990: 134-139

Renate Scheidler, Johannes Buchmann, Hugh C. Williams: Implementation of a Key Exchange Protocol Using Some Real Quadratic Fields. EUROCRYPT 1990: 98-109

Johannes Buchmann, Hugh C. Williams: A Key Exchange System Based on Real Quadratic Fields. CRYPTO 1989: 335-343

Johannes Buchmann, Stephan Düllmann, Hugh C. Williams: On the Complexity and Efficiency of a New Key Exchange System. EUROCRYPT 1989: 597-616

Johannes Buchmann, Hugh C. Williams: A Key-Exchange System Based on Imaginary Quadratic Fields. J. Cryptology 1(2): 107-118 (1988)

Johannes Buchmann, Michael Pohst: On the Complexity of Computing Class Groups of Algebraic Number Fields. AAECC 1988: 122-130

Johannes Buchmann, Hugh C. Williams: On Principal Ideal Testing in Algebraic Number Fields. J. Symb. Comput. 4(1): 11-19 (1987)

Johannes Buchmann, Michael Pohst: Computing a lattice basis from a system of generating vectors. EUROCAL 1987: 54-63

Johannes Buchmann, Attila Pethö: Computation of Independent Units in Number Fields by Dirichlet's Method. AAECC 1985: 302-305

Johannes Buchmann: The Generalized Voronoi-Algorithm in Totally Real Algebraic Number Fields. European Conference on Computer Algebra (2) 1985: 479-486

Johannes Buchmann: A Criterion for the Equivalence of Two Ideals. EUROSAM 1984: 333-340