Anonymous Quantum Tokens with Classical Verification
Fuente:
arXiv
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866909860043423744 |
|---|---|
| author | Gavinsky, Dmytro Gilboa, Dar Jain, Siddhartha Maslov, Dmitri McClean, Jarrod R. |
| author_facet | Gavinsky, Dmytro Gilboa, Dar Jain, Siddhartha Maslov, Dmitri McClean, Jarrod R. |
| contents | The no-cloning theorem can be used as a basis for quantum money constructions which guarantee unconditionally unforgeable currency. Existing schemes, however, either (i) require long-term quantum memory and quantum communication between the user and the bank in order to verify the validity of a bill or (ii) fail to protect user privacy due to the uniqueness of each bill issued by the bank, which can allow its usage to be tracked. We introduce a construction of single-use quantum money that gives users the ability to detect whether the issuing authority is tracking them, employing an auditing procedure for which we prove unconditional security. Bill validation is classical, and hence does not require long-term quantum memory or quantum communication, making the protocol relatively practical to deploy. We discuss potential applications beyond money, including anonymous one-time pads and voting. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_06212 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Anonymous Quantum Tokens with Classical Verification Gavinsky, Dmytro Gilboa, Dar Jain, Siddhartha Maslov, Dmitri McClean, Jarrod R. Quantum Physics Cryptography and Security The no-cloning theorem can be used as a basis for quantum money constructions which guarantee unconditionally unforgeable currency. Existing schemes, however, either (i) require long-term quantum memory and quantum communication between the user and the bank in order to verify the validity of a bill or (ii) fail to protect user privacy due to the uniqueness of each bill issued by the bank, which can allow its usage to be tracked. We introduce a construction of single-use quantum money that gives users the ability to detect whether the issuing authority is tracking them, employing an auditing procedure for which we prove unconditional security. Bill validation is classical, and hence does not require long-term quantum memory or quantum communication, making the protocol relatively practical to deploy. We discuss potential applications beyond money, including anonymous one-time pads and voting. |
| title | Anonymous Quantum Tokens with Classical Verification |
| topic | Quantum Physics Cryptography and Security |
| url | https://arxiv.org/abs/2510.06212 |