Paul Baecher

I am a software engineer at GetYourGuide.

My academic background is in theoretical cryptography where I was part of Prof. Dr. Marc Fischlin's research group Cryptography and Complexity Theory at TU Darmstadt from March 2010 to February 2015. During that I completed a Ph.D. in computer science in October 2014.

Email: pbaecher/gmail.com
PGP: 0xAB2EFE17

Writing

• Reproducible git bundles

Software

Some of my software is available in GitHub repositories, including the mkbooklet utility to prepare PDF files for booklet printing.

Academic publications and presentations

Also available on DBLP or Google Scholar.

Cryptography

• Cryptographic Reductions: Classification and Applications to Ideal Models
  Paul Baecher
  tuprints 4000, October 2014 (full PhD thesis, defense presentation slides).
• Simon's Circuit – A Note on Cleverly-Chosen Circuits
  Paul Baecher
  ePrint 2014/476, May 2014 (full article).
• Notions of Black-Box Reductions, Revisited
  Paul Baecher, Christina Brzuska, Marc Fischlin
  ASIACRYPT 2013 Part I: pages 296–315 (full article, presentation slides).
• Reset Indifferentiability and its Consequences
  Paul Baecher, Christina Brzuska, Arno Mittelbach
  ASIACRYPT 2013 Part I: pages 154–173 (full article, presentation slides).
• Ideal-Cipher (Ir)reducibility for Blockcipher-Based Hash Functions
  Paul Baecher, Pooya Farshim, Marc Fischlin, Martijn Stam
  EUROCRYPT 2013: pages 426–443 (full article, presentation slides).
• Random Oracle Reducibility
  Paul Baecher, Marc Fischlin
  CRYPTO 2011: pages 21–38 (full article, presentation slides).
• Expedient Non-Malleability Notions for Hash Functions
  Paul Baecher, Marc Fischlin, Dominique Schröder
  CT-RSA 2011: pages 268–283 (full article, presentation slides).

Security

• Breaking reCAPTCHA: A Holistic Approach via Shape Recognition
  Paul Baecher, Niklas Büscher, Marc Fischlin, Benjamin Milde
  IFIP SEC 2011: pages 56–67 (full article, presentation slides).
• CAPTCHAs: The Good, the Bad, and the Ugly
  Paul Baecher, Marc Fischlin, Lior Gordon, Robert Langenberg, Michael Luetzow, Dominique Schröder
  LNI 2010: pages 353–365 (full article, presentation slides).
• PUF-Based Authentication Protocols - Revisited
  Heike Busch, Stefan Katzenbeisser, Paul Baecher
  WISA 2009: pages 296–308.
• The Nepenthes Platform: An Efficient Approach to Collect Malware
  Paul Baecher, Markus Koetter, Thorsten Holz, Maximillian Dornseif, Felix C. Freiling
  RAID 2006: pages 165–184 (full article).

Other

• Massively-Parallel Simulation of Biochemical Systems
  Jens Ackermann, Paul Baecher, Thorsten Franzel, Michael Goesele, Kay Hamacher
  LNI 2009: pages 739–750 (full article).

Last update: 2023-12-25