all InfoSec news
Public Key Encryption with Secure Key Leasing. (arXiv:2302.11663v1 [quant-ph])
cs.CR updates on arXiv.org arxiv.org
We introduce the notion of public key encryption with secure key leasing
(PKE-SKL). Our notion supports the leasing of decryption keys so that a leased
key achieves the decryption functionality but comes with the guarantee that if
the quantum decryption key returned by a user passes a validity test, then the
user has lost the ability to decrypt. Our notion is similar in spirit to the
notion of secure software leasing (SSL) introduced by Ananth and La Placa
(Eurocrypt 2021) …
decrypt decryption decryption keys encryption guarantee key keys lost public public key quantum secure software software spirit test