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Securing privacy in offline payments for retail CBDCs: a comprehensive framework.

Exploring privacy in offline CBDC payments via blind signatures and zk-SNARK for data security and quantum resistance.

Securing privacy in offline payments for retail CBDCs: a comprehensive framework.

What’s in the scientific paper?

This scientific paper explores the importance of privacy in Central Bank Digital Currency (CBDC) adoption, particularly in offline payments.

It proposes a protocol using blind signatures and zk-SNARK to protect transaction data. This ensures privacy and verifiability without direct interaction, while also guarding against quantum attacks within retail CBDC systems.


Table of contents

  • Introduction.
  • Related work. 
  • Materials and method.
  • System operation.
  • Discussion.
  • Conclusions.

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