Statistically Secure Uncloneable Encryption of Arbitrary Messages

Unconditional uncloneable encryption of a single bit with efficient encryption and decryption is now possible. However, whether the extension to messages of arbitrary length achieves statistical security remains to be known. Using the fact that the encoding bases for the single-bit scheme known t...

Optimal Untelegraphable Encryption and Implications for Uncloneable Encryption

We investigate the notion of untelegraphable encryption UTE, a quantum encryption primitive that is a special case of uncloneable encryption UE, where the adversary's capabilities are restricted to producing purely classical information rather than arbitrary quantum states. We present an...