georg fuchsbauer

I am a research assistant in the Department of Computer Science at the University of Bristol. In 2010 I finished my PhD under the supervision of David Pointcheval at École normale supérieure, Paris. The scope of my research is provable security in public-key cryptography and its foundations. In particular, I have worked on digital signatures, credentials, electronic cash, and combining game theory with cryptography.

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contact

Dept. Computer Science
University of Bristol
MVB, Woodland Road
Bristol, BS8 1UB, United Kingdom.
Email:   first name [@] cs [.] bris [.] ac.uk

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programme committees

PKC 2012, Darmstadt, Germany, 21–23 May 2012.
Africacrypt 2012, Ifrane, Morocco, 10–12 July 2012.
ProveSec 2012, Chengdu, China, 26–28 Sept 2012.
LatinCrypt 2012, Santiago, Chile, 7–10 Oct 2012 (submission: 4 May > 18 May 2012).
IWSEC 2012, Fukuoka, Japan, 7–9 Nov 2012 (submission: 2 May > 15 May 2012).

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publications

1. D. Bernhard, G. Fuchsbauer, E. Ghadafi, N.P. Smart, B. Warinschi.  Anonymous Attestation with User-Controlled Linkability. Cryptology ePrint Archive: Report 2011/658.
   
   
2. S. Canard, G. Fuchsbauer, A. Gouget, F. Laguillaumie.  Plaintext-Checkable Encryption.  CT-RSA '12. [pdf]
   
   
3. O. Blazy, S. Canard, G. Fuchsbauer, A. Gouget, H. Sibert, J. Traoré.  Achieving Optimal Anonymity in Transferable E-cash with a Judge.  AFRICACRYPT '11.  Full version available [here].   [slides]
   
   
4. G. Fuchsbauer.  Commuting Signatures and Verifiable Encryption.  EUROCRYPT '11.
   Full version available as ePrint Report 2010/233.  [slides]
   
   
5. O. Blazy, G. Fuchsbauer, D. Pointcheval, D. Vergnaud.  Signatures on Randomizable Ciphertexts.  PKC '11.
   Full version available [here].
   
   
6. G. Fuchsbauer.  Automorphic Signatures in Bilinear Groups and an Application to Round-Optimal Blind Signatures.  [pdf]  Cryptology ePrint Archive: Report 2009/320.  [slides]
   
   Appeared as part of
   M. Abe, G. Fuchsbauer, J. Groth, K. Haralambiev, M. Ohkubo.  Structure-Preserving Signatures and Commitments to Group Elements.  CRYPTO '10. [slides]
   
   
7. O. Blazy, G. Fuchsbauer, M. Izabachène, A. Jambert, H. Sibert, D. Vergnaud.  Batch Groth–Sahai.  ACNS '10.
   Full version available as ePrint Report 2010/040.
   
   
8. X. Boyen, C. Chevalier, G. Fuchsbauer, D. Pointcheval.  Strong Cryptography from Weak Secrets.  AFRICACRYPT '10.
   Full version available [here].  [slides]
   
   
9. D. Galindo, B. Libert, M. Fischlin, G. Fuchsbauer, A. Lehmann, M. Manulis, D. Schröder.  Public-Key Encryption with Non-interactive Opening: New Constructions and Stronger Definitions.  AFRICACRYPT '10. [pdf]
   
   
10. G. Fuchsbauer, D. Vergnaud.  Fair Blind Signatures without Random Oracles.  AFRICACRYPT '10.
    Full version available as ePrint Report 2010/101.  [slides]
    
    
11. G. Fuchsbauer, J. Katz, D. Naccache.  Efficient Rational Secret Sharing in Standard Communication Networks.  TCC '10.
    Full version available as ePrint Report 2008/488.  [slides]
    
    
12. G. Fuchsbauer, D. Pointcheval, D. Vergnaud.  Transferable Constant-Size Fair E-Cash.  CANS '09.
    Full version available as ePrint Report 2009/146.
    
    
13. G. Fuchsbauer, D. Pointcheval.  Proofs on Encrypted Values in Bilinear Groups and an Application to Anonymity of Signatures.  PAIRING '09.
    Full version available as ePrint Report 2008/528.  [slides]
    
    
14. G. Fuchsbauer, D. Pointcheval.  Anonymous Consecutive Delegation of Signing Rights: Unifying Group and Proxy Signatures.  Formal to Practical Security, LNCS 5458, Springer-Verlag, 2009.
    (Full version of the paper below) [pdf]
    
    
15. G. Fuchsbauer, D. Pointcheval.  Anonymous Proxy Signatures.  SCN '08.   [slides]
    
    
16. G. J. Fuchsbauer.  An Introduction to Probabilistic Encryption.  Osječki matematički list 6(2006), pp. 37–44.  [pdf]
    

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teaching

Tutorial on Electronic Cash. Five-week tutorial for second-year computer-science students. University of Bristol, Oct–Nov 2011.
COMS30002: Crypto A.  I taught the part on public-key encryption (6 lectures) of the introductory class on cryptography. University of Bristol, Dec 2011.
COMSM0007: Crypto B.  I gave 2 lectures on e-cash, blind signatures and commitments of the advanced class on cryptography. University of Bristol, March 2011.

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thesis

G. Fuchsbauer.  Automorphic Signatures and Applications.  (Awarded Best PhD Thesis 2011 by the ERCIM Security and Trust Management Working Group.)
Here is the English version of my thesis.