Functional Encryption with Secure Key Leasing

ePrint Report: Functional Encryption with Secure Key Leasing

Fuyuki Kitagawa, Ryo Nishimaki

Secure software leasing is a quantum cryptographic primitive that enables us to lease software to a user by encoding it into a quantum state. Secure software leasing has a mechanism that verifies whether a returned software is valid or not. The security notion guarantees that once a user returns a software in a valid form, the user no longer uses the software.


In this work, we introduce the …

encryption eprint report key