Seung Geol Choi

Hi, I am a PhD student in the Computer Science Department of Columbia University. I am interested in Cryptography and Computational Complexity. My advisors are Tal Malkin and Moti Yung . I received my undergraduate and master's degree in Computer Science and Engineering from Seoul National University. Here is my CV.

Contact Information
511 Computer Science Building
sgchoi at cs dot columbia dot edu


Publications

• Seung Geol Choi, Ariel Elbaz, Tal Malkin and Moti Yung.
  Secure Multi-party Computation Minimizing Online Rounds
  Accepted to Asiacrypt 2009
• Seung Geol Choi, Dana Dachman-Soled, Tal Malkin and Hoeteck Wee.
  Improved Non-Committing Encryption with Applications to Adaptively Secure Protocols
  Accepted to Asiacrypt 2009
• Seung Geol Choi, Javier Herranz, Dennis Hofheinz, Jung Yeon Hwang, Eike Kiltz, Dong Hoon Lee, Moti Yung.
  The Kurosawa-Desmedt key encapsulation is not chosen-ciphertext secure.
  Inf. Process. Lett. 109(16) link
• Seung Geol Choi, Dana Dachman-Soled, Tal Malkin, and Hoeteck Wee.
  Simple, Black-Box Constructions of Adaptively Secure Protocols.
  TCC 2009. pdf
• Elli Androulaki, Seung Geol Choi, Steven M. Bellovin, and Tal Malkin.
  Reputation Systems for Anonymous Networks.
  PETS 2008. pdf
• Seung Geol Choi, Dana Dachman-Soled, Tal Malkin, and Hoeteck Wee.
  Black-Box Construction of a Non-malleable Encryption Scheme from Any Semantically Secure One.
  TCC 2008. pdf
• Vicente Benjumea, Seung Geol Choi, Javier Lopez, and Moti Yung.
  Fair Traceable Multi-Group Signatures.
  Financial Cryptography 2008. pdf
• Seung Geol Choi, Ariel Elbaz, Ari Juels, Tal Malkin, and Moti Yung.
  Two-Party Computing with Encrypted Data
  Asiacrypt 2007. pdf
• Vicente Benjumea, Seung Geol Choi, Javier Lopez, and Moti Yung.
  Anonymity 2.0 -- X.509 Extensions Supporting Privacy-Friendly Authentication
  CANS 2007. pdf
• Seung Geol Choi, Kunsoo Park, and Moti Yung.
  Short Traceable Signatures Based on Bilinear Pairings
  IWSEC 2006. pdf