EC:AKNYY23 https://eprint.iacr.org/2023/264 (The last Y is Takashi Yamakawa, of [[Yamakawa-Zhandry]] fame!) Informally: Uncloneable crypto implies crypto with secure leasing New result: Can achieve PKE with SKL from a standard PKE + uncloneability New security notion: Consistent-or-InConsistent indistinguishability (CoIC): basically, given two messages m_0, m_1, have to distinguish between world in which m_a is encrypted twice (for random a), or if m_a is encrypted once and m_{1-a} is encrypted once. (Under two different public keys...?) Was a bit distracted, but looks interesting; consider rewatching this one in more detail later. Anyway, starting with the above novel security notion, they are able to construct a so-called IND-KLA PKE. (KLA = Key Leasing ... Attack?) --- Part of [[Eurocrypt'23]]