2023/08/23 by Xiaogang Cheng, Cheng, Xiaogang, Ren Guo +1
Computer Science · #Cryptography and Security (cs.CR) #FOS: Computer and information sciences #FOS: Physical sciences #Physical Unclonable Functions (PUFs) and Hardware Security #Quantum Physics (quant-ph)
paper · pdf · doi:10.48550/arxiv.2308.12310
openalex publication_date 2023/08/23 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Seal in classical information is simply impossible. Since classical information can be easily copied any number of times. Based on quantum information, esp. quantum unclonable theorem, quantum seal maybe constructed perfectly. But it is shown that perfect quantum seal is impossible, and the success probability is bounded. In this paper, we show how to exceed the optimal bound by using the TCF (Trapdoor Claw Free) functions, which can be constructed based on LWE assumption. Hence it is post-quantum secure.