georg fuchsbauer

I am a postdoctoral researcher in the Cryptography Group in the Department of Computer Science at the University of Bristol, where I am also lecturing.

The scope of my research is provable security in public-key cryptography and its foundations. I have worked on public-key encryption, digital signatures, credentials, electronic cash, and combining game theory with cryptography.
In 2010 I finished my PhD at École normale supérieure, Paris.

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contact

Dept. Computer Science
Room 3.53, Merchant Venturers Building
University of 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.
IWSEC 2012, Fukuoka, Japan, 7–9 Nov 2012.

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preprints

1. D. Dachman-Soled, G. Fuchsbauer, P. Mohassel, A. O'Neill.  Enhanced Chosen-Ciphertext Security and Applications. Cryptology ePrint Archive: Report 2012/543.
   
   
2. D. Bernhard, G. Fuchsbauer, E. Ghadafi.  Efficient Signatures of Knowledge and DAA in the Standard Model. Cryptology ePrint Archive: Report 2012/475.
   
   
3. D. Bernhard, G. Fuchsbauer, E. Ghadafi, N.P. Smart, B. Warinschi.  Anonymous Attestation with User-Controlled Linkability. Cryptology ePrint Archive: Report 2011/658.
   
   

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publications

1. S. Canard, G. Fuchsbauer, A. Gouget, F. Laguillaumie.  Plaintext-Checkable Encryption.  CT-RSA '12. [pdf]
   
   
2. 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]
   
   
3. G. Fuchsbauer.  Commuting Signatures and Verifiable Encryption.  EUROCRYPT '11.
   Full version available as ePrint Report 2010/233.  [slides]
   
   
4. O. Blazy, G. Fuchsbauer, D. Pointcheval, D. Vergnaud.  Signatures on Randomizable Ciphertexts.  PKC '11.
   Full version available [here].
   
   
5. 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]
   
   
6. 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.
   
   
7. X. Boyen, C. Chevalier, G. Fuchsbauer, D. Pointcheval.  Strong Cryptography from Weak Secrets.  AFRICACRYPT '10.
   Full version available [here].  [slides]
   
   
8. 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]
   
   
9. G. Fuchsbauer, D. Vergnaud.  Fair Blind Signatures without Random Oracles.  AFRICACRYPT '10.
   Full version available as ePrint Report 2010/101.  [slides]
   
   
10. 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]
    
    
11. G. Fuchsbauer, D. Pointcheval, D. Vergnaud.  Transferable Constant-Size Fair E-Cash.  CANS '09.
    Full version available as ePrint Report 2009/146.
    
    
12. 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]
    
    
13. 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]
    
    
14. G. Fuchsbauer, D. Pointcheval.  Anonymous Proxy Signatures.  SCN '08.   [slides]
    
    
15. G. J. Fuchsbauer.  An Introduction to Probabilistic Encryption.  Osječki matematički list 6(2006), pp. 37–44.  [pdf]
    

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teaching

COMS21400: Topics in Theoretical Computer Science.  Responsible for half the course (part on complexity theory). University of Bristol, Nov 2012 – Jan 2013.
COMSM0007: Crypto B.  I gave 2 lectures on e-cash, blind signatures and commitments of the advanced class on cryptography. University of Bristol, March 2012.
COMS30002: Crypto A.  I taught the part on public-key encryption (6 lectures) of the introductory class on cryptography. University of Bristol, Dec 2011.
Tutorial on Electronic Cash. Five-week tutorial for second-year computer-science students. University of Bristol, Oct–Nov 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.