Provably Secure Public-Key Encryption for Length-Preserving Chaumian Mixes

  title={Provably Secure Public-Key Encryption for Length-Preserving Chaumian Mixes},
  author={Bodo M{\"o}ller},
  booktitle={IACR Cryptology ePrint Archive},
Mix chains as proposed by Chaum allow sending untraceable electronic e-mail without requiring trust in a single authority: messages are recursively public-key encrypted to multiple intermediates (mixes), each of which forwards the message after removing one layer of encryption. To conceal as much information as possible when using variable (source routed) chains, all messages passed to mixes should be of the same length; thus, message length should not decrease when a mix transforms an input… CONTINUE READING
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