Dates are inconsistent

Dates are inconsistent

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Possible spell-corrected query: find-cpa
2022/236 (PDF) Last updated: 2022-10-07
Characterizing the qIND-qCPA (in)security of the CBC, CFB, OFB and CTR modes of operation
Tristan Nemoz, Zoé AMBLARD, Aurélien DUPIN
Secret-key cryptography

We fully characterize the post-quantum security of the \(\mathsf{CBC}\), \(\mathsf{CFB}\), \(\mathsf{OFB}\) and \(\mathsf{CTR}\) modes of operation by considering all possible notions of \(\textsf{qIND-qCPA}\) security defined by Carstens, Ebrahimi, Tabia and Unruh (TCC 2021), thus extending the work performed by Anand, Targhi, Tabia and Unruh (PQCrypto 2016). We show that the results obtained by Anand et al. for the \(\textsf{qIND-qCPA-P6}\) security of these modes carry on to the other...

2020/266 (PDF) Last updated: 2021-06-13
Quantum Indistinguishability for Public Key Encryption
Tommaso Gagliardoni, Juliane Krämer, Patrick Struck
Public-key cryptography

In this work we study the quantum security of public key encryption schemes (PKE). Boneh and Zhandry (CRYPTO'13) initiated this research area for PKE and symmetric key encryption (SKE), albeit restricted to a classical indistinguishability phase. Gagliardoni et al. (CRYPTO'16) advanced the study of quantum security by giving, for SKE, the first definition with a quantum indistinguishability phase. For PKE, on the other hand, no notion of quantum security with a quantum indistinguishability...

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