The current widely used public‐key cryptosystems are vulnerable to quantum attacks. To
prepare for cybersecurity in the quantum era, some projects have been launched to call for …

Ring signatures, a cryptographic primitive introduced by Rivest, Shamir and Tauman
(ASIACRYPT 2001), offer signer anonymity within dynamically formed user groups. Recent …

NTRU was the first practical public key encryption scheme constructed on a lattice over a
polynomial-based ring and has been considered secure against significant cryptanalytic …

Abstract We define the Generic Group Action Model (GGAM), an adaptation of the Generic
Group Model to the setting of group actions (such as CSIDH). Compared to a previously …

We present BAT–an IND-CCA secure key encapsulation mechanism (KEM) that is based on
NTRU but follows an encryption/decryption paradigm distinct from classical NTRU KEMs. It …

In the context of quantum-resistant cryptography, cryptographic group actions offer an
abstraction of isogeny-based cryptography in the Commutative Supersingular Isogeny Diffie …

In this paper, we present NEV–a faster and smaller NTRU Encryption using Vector
decoding, which is provably IND-CPA secure in the standard model under the decisional …

As for any cryptographic algorithm, the deployment of post-quantum CCA-secure public key
encryption schemes may come with the need to be protected against side-channel attacks …

The semi-classical One-Way to Hiding (SC-O2H) lemma given by Ambainis et al.(CRYPTO
2019) is a crucial technique to solve the reprogramming problem in the quantum random …

The Module-NTRU problem, introduced by Cheon, Kim, Kim, Son (IACR ePrint 2019/1468),
and Chuengsatiansup, Prest, Stehlé, Wallet, Xagawa (ASIACCS'20), generalizes the …