Motivated by new applications such as secure Multi-Party Computation (MPC), Fully
Homomorphic Encryption (FHE), and Zero-Knowledge proofs (ZK), the need for symmetric …

An authenticated encryption scheme is a scheme which provides privacy and integrity by
using a secret key. In 2013, CAESAR (the “Competition for Authenticated Encryption …

Online ciphers encrypt an arbitrary number of plaintext blocks and output ciphertext blocks
which only depend on the preceding plaintext blocks. All online ciphers proposed so far are …

We propose a nonce-based MAC construction called EWCDM (Encrypted Wegman-Carter
with Davies-Meyer), based on an almost xor-universal hash function and a block cipher, with …

We propose a new mode of operation called ZMAC allowing to construct a (stateless and
deterministic) message authentication code (MAC) from a tweakable block cipher (TBC) …

The ChaCha20-Poly1305 AEAD scheme is being increasingly widely deployed in practice.
Practitioners need proven security bounds in order to set data limits and rekeying intervals …

The multi-key, or multi-user, setting challenges cryptographic algorithms to maintain high
levels of security when used with many different keys, by many different users. Its …

Correct authenticated decryption requires the receiver to buffer the decrypted message until
the authenticity check has been performed. In high-speed networks, which must handle …

In this paper, we study the side-channel security of the field multiplication in GF (2 n). We
particularly focus on GF (2 128) multiplication which is the one used in the authentication …

The ongoing CAESAR competition aims at finding authenticated encryption schemes that
offer advantages over AES-GCM for several use-cases, including lightweight applications …