Journal of Cryptology

, Volume 1, Issue 1, pp 65–75

The dining cryptographers problem: Unconditional sender and recipient untraceability


  • David Chaum
    • Centre for Mathematics and Computer Science

DOI: 10.1007/BF00206326

Cite this article as:
Chaum, D. J. Cryptology (1988) 1: 65. doi:10.1007/BF00206326


Keeping confidential who sends which messages, in a world where any physical transmission can be traced to its origin, seems impossible. The solution presented here is unconditionally or cryptographically secure, depending on whether it is based on one-time-use keys or on public keys, respectively. It can be adapted to address efficiently a wide variety of practical considerations.

Key words

UntraceabilityUnconditional SecurityPseudonymity
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Copyright information

© International Association for Cryptologic Research 1988