2 papers
quant-ph2026
Error-tolerant secure key leasing for quantum decryption keys in public-key encryption
Duo Xu, Yuki Takeuchi
We propose the first error-tolerant secure key leasing (SKL) for public-key encryption. As with SKL in prior works, our protocol consists of a lessor and lessee. In the protocol, t…
cs.CR2025
Computational Certified Deletion Property of Magic Square Game and its Application to Classical Secure Key Leasing
Yuki Takeuchi, Duo Xu
We present the first construction of a computational Certified Deletion Property (CDP) achievable with classical communication, derived from the compilation of the non-local Magic…