Cryptography typically models adversaries as time-bounded, but what about adversaries that are space-bounded? The space-bounded model allows for unconditional and everlasting protocols, sometimes far simpler than their time-bounded counterparts. If we bound time and space, we can also achieve never-before-possible functionalities, such as ciphertexts that effectively disappear after transmission.

Incompressible Cryptography
By Jiaxin Guan, Daniel Wichs and Mark Zhandry
In EUROCRYPT 2022

Disappearing Cryptography in the Bounded Storage Model
By Jiaxin Guan and Mark Zhandry
In TCC 2021

Simple Schemes in the Bounded Storage Model
By Jiaxin Guan and Mark Zhandry
In EUROCRYPT 2019