Limitations on information-theoretically-secure quantum homomorphic encryption
- Submitting institution
-
The University of Kent
- Unit of assessment
- 11 - Computer Science and Informatics
- Output identifier
- 9325
- Type
- D - Journal article
- DOI
-
10.1103/PhysRevA.90.050303
- Title of journal
- Physical Review A
- Article number
- 050303
- First page
- -
- Volume
- 90
- Issue
- 5
- ISSN
- 2469-9926
- Open access status
- Out of scope for open access requirements
- Month of publication
- November
- Year of publication
- 2014
- URL
-
https://kar.kent.ac.uk/58149/
- Supplementary information
-
-
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
-
2
- Research group(s)
-
-
- Citation count
- 27
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- This paper is significant because we prove that unconditionally secure quantum fully homomorphic encryption (QFHE) is impossible. For several years, a `holy grail' of quantum cryptographic research had been a QFHE scheme. This was thought possible due to earlier protocols for quantum unconditionally secure key distribution, blind computation, and others. However, we unequivocally closed this line of research. This paper has greatly influenced research in the field, by shifting research attention to goals that are still attainable according to our result - such as partial QHE and computationally secure QFHE.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -
