Unconditional Unclonable Encryption

Prabhanjan Ananth; Amit Sahai

Paper 2026/1511

Unconditional Unclonable Encryption

Prabhanjan Ananth, University of California, Santa Barbara

Amit Sahai, University of California, Los Angeles

Abstract

We give an unconditional construction of information-theoretically secure one-time private-key unclonable encryption scheme for one-bit messages, with efficient encryption and decryption and exponentially small unclonable-indistinguishability advantage.

Metadata

Available format(s): PDF
Category: Foundations
Publication info: Preprint.
Keywords: Quantum Cryptography Unclonable Cryptography
Contact author(s): prabhanjan va @ gmail com
sahai @ cs ucla edu
History: 2026-07-25: approved; 2026-07-24: received; See all versions
Short URL: https://ia.cr/2026/1511
License: CC BY

BibTeX

@misc{cryptoeprint:2026/1511,
      author = {Prabhanjan Ananth and Amit Sahai},
      title = {Unconditional Unclonable Encryption},
      howpublished = {Cryptology {ePrint} Archive, Paper 2026/1511},
      year = {2026},
      url = {https://eprint.iacr.org/2026/1511}
}