Quantum digital signatures without quantum memory.

  title={Quantum digital signatures without quantum memory.},
  author={Vedran Dunjko and Petros Wallden and Erika Andersson},
  journal={Physical review letters},
  volume={112 4},
Quantum digital signatures (QDSs) allow the sending of messages from one sender to multiple recipients, with the guarantee that messages cannot be forged or tampered with. Additionally, messages cannot be repudiated--if one recipient accepts a message, she is guaranteed that others will accept the same message as well. While messaging with these types of security guarantees are routinely performed in the modern digital world, current technologies only offer security under computational… CONTINUE READING
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