LICA: Making Quantum Incorrect-Plaintext Attack Detectable in Data Sharing Protocol
Summary
This paper introduces LICA, a new security method that can detect Incorrect-Plaintext Attacks (IPA, where someone encrypts wrong data or falsely claims decryption failed) even against adversaries with quantum computers. LICA uses lattice-based cryptography (mathematical problems believed to be hard even for quantum computers) combined with commitments (binding agreements on encryption parameters) to identify which party is acting maliciously, and presents LICADS, a data sharing protocol that catches quantum IPA by having a trusted arbitrator challenge suspicious parties and assign penalties to the dishonest one.
Solution / Mitigation
The paper proposes LICA, a lattice-based IBE (Identity-Based Encryption, a type of encryption using a person's identity as their public key) scheme with commitment assistance to detect quantum IPA. Upon suspected quantum IPA, "a trusted arbitration authority initiates a probabilistic challenge with the DO and collects evidence from the DO and DU. Then the arbitration authority identifies the malicious party using LICA and signatures to apply penalties." The scheme uses commitment to bind encryption random parameters and prevents malicious data users from forging verification proofs.
Classification
Original source: http://ieeexplore.ieee.org/document/11653410
First tracked: August 20, 2026 at 08:03 PM
Classified by LLM (prompt v3) · confidence: 85%