Paper 2018/1027

A Unified Security Perspective on Legally Fair Contract Signing Protocols

Diana Maimut and George Teseleanu


Inspired by Maurer's universal zero knowledge (UZK) abstract perspective and building on legally fair contract signing protocols without keystones, we propose and analyze the security of the first UZK class of co-signing protocols. We construct our main idea considering the stringent issue of scheme compatibility which characterizes communication systems. Typical examples are the cases of certificates in a public key infrastructure and the general issue of upgrading the version of a system. Thus, working in a general framework may reduce implementation errors and save application development and maintenance time.

Available format(s)
Public-key cryptography
Publication info
Published elsewhere. MINOR revision.SECITC 2018
Contact author(s)
maimut diana @ gmail com
george teseleanu @ yahoo com
2022-03-15: revised
2018-10-26: received
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Creative Commons Attribution


      author = {Diana Maimut and George Teseleanu},
      title = {A Unified Security Perspective on Legally Fair Contract Signing Protocols},
      howpublished = {Cryptology ePrint Archive, Paper 2018/1027},
      year = {2018},
      note = {\url{}},
      url = {}
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