TL;DR
This paper proposes a dynamic quantum secure multi-party multiplication protocol with verifiable result integrity, based on homomorphic encryption, that can resist a series of typical external and internal attacks.
This paper analyzes the four-state QPKE scheme of Liu et al. and shows that its ciphertext structure leaks information about computational-basis plaintexts, and proposes sQPKE, a simple quantum public-key encryption scheme that uses only elementary operations.
A hybrid key exchange protocol combining DHKE with Learning With Errors (LWE), a lattice-based post-quantum primitive that provides authentication via a Public Key Infrastructure together with CRYSTALS-Dilithium digital signature, resilience against MITM attacks, and robustness against classical and quantum threats.
Bit commitment is impossible to achieve with unconditional security, even in quantum cryptogra- phy. We show that statistically secure bit commitment, satisfying both hiding and binding, can be constructed from hybrid locked physical unclonable functions (HLPUFs), a hardware primitive that combines classical hardware t...
In Incorrect-Plaintext Attacks (IPA), a malicious Data Owner (DO) compromises system security by encrypting incorrect plaintext, while a malicious Data User (DU) undermines system fairness by falsely claiming decryption failure even when the plaintext is valid. Both security and fairness vulnerabilities can be further...
Pseudorandom permutations are ubiquitous in theoretical and applied cryptography. PRPs that offer security even against adversaries making quantum queries are of increasing interest, and used in applications ranging from constructing pseudorandom unitaries to separating SZK from BQP. A successful framework for construc...
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