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Sponges Resist Leakage: The Case of Authenticated Encryption
AEAD Leakage Resilience Side Channels
2019/9/17
In this work we advance the study of leakage-resilient Authenticated Encryption with Associated Data (AEAD) and lay the theoretical groundwork for building such schemes from sponges. Building on the w...
Forkcipher: a New Primitive for Authenticated Encryption of Very Short Messages
Authenticated encryption new primitive forkcipher
2019/9/6
Highly efficient encryption and authentication of short messages is an essential requirement for enabling security in constrained scenarios such as the CAN FD in automotive systems (max. message size ...
CCM-SIV: Single-PRF Nonce-Misuse-Resistant Authenticated Encryption
AEAD AES-GCM AES-GCM-SIV
2019/8/6
We propose a new nonce-misuse-resistant authenticated encryption scheme, which instantiates the SIV paradigm of Rogaway and Shrimpton. In contrast to the GCM-SIV approach proposed by Gueron and Lindel...
A Survey on Authenticated Encryption -- ASIC Designer's Perspective
Authenticated encryption hardware performance authenticated encryption mode
2019/6/24
Authenticated encryption (AE) has been a vital operation in cryptography due to its ability to provide confidentiality, integrity, and authenticity at the same time. Its use has soared in parallel wit...
SimpleENC and SimpleENCsmall -- an Authenticated Encryption Mode for the Lightweight Setting
modes of operation lightweight cryptography authenticated encryption
2019/6/19
Block cipher modes of operation provide a way to securely encrypt using a block cipher, and different modes of operation achieve different tradeoffs of security, performance and simplicity. In this pa...
ZOCB and ZOTR: Tweakable Blockcipher Modes for Authenticated Encryption with Full Absorption
ZOCB ZOTR Authenticated encryption Associated data
2019/6/3
We define ZOCB and ZOTR for nonce-based authenticated encryption with associated data, and analyze their provable security. These schemes use a tweakable blockcipher (TBC) as the underlying primitive,...
Enigma 2000: An Authenticated Encryption Algorithm For Human-to-Human Communication
Enigma Machine authenticated encryption polyalphabetic cipher
2019/5/21
Enigma 2000 (E2K) is a cipher that updates the World War II-era Enigma Machine for the twenty-first century. Like the original Enigma, E2K is intended to be computed by an offline device; this prevent...
Lightweight Authenticated Encryption Mode of Operation for Tweakable Block Ciphers
Authenticated encryption beyond-birthday-bound security tweakable block- cipher
2019/4/3
Using a small block length is a common strategy in designing lightweight block cipher. So far, many 64-bit primitives have been proposed. However, if we use such a 64-bit primitive for an authenticate...
Key Assignment Scheme with Authenticated Encryption
Key assignment schemes (KAS) Message-locked encryption (MLE) Authenticated encryption (AE)
2019/1/2
The Key Assignment Scheme (KAS) is a well-studied cryptographic primitive used for hierarchical access control (HAC) in a multilevel organisation where the classes of people with higher privileges can...
Identity-Concealed Authenticated Encryption and Key Exchange
key exchange identity privacy TLS
2018/12/3
Identity concealment and zero-round trip time (0-RTT) connection are two of current research focuses in the design and analysis of secure transport protocols, like TLS1.3 and Google's QUIC, in the cli...
Beetle Family of Lightweight and Secure Authenticated Encryption Ciphers
Beetle sponge PHOTON
2018/11/20
This paper presents a lightweight, sponge-based authenticated encryption (AE) family called Beetle. When instantiated with the PHOTON permutation from CRYPTO 2011, Beetle achieves the smallest footpri...
Fault Attacks on Nonce-based Authenticated Encryption: Application to Keyak and Ketje
Fault Attack Statistical Ineffective Fault Attack SIFA
2018/11/15
In the context of fault attacks on nonce-based authenticated encryption, an attacker faces two restrictions. The first is the uniqueness of the nonce for each new encryption that prevents the attacker...
Forking a Blockcipher for Authenticated Encryption of Very Short Messages
Authenticated encryption short messages lightweight cryptography
2018/11/8
Highly efficient encryption and authentication of short messages has been identified as an essential requirement for enabling security in constrained computation and communication scenarios such as th...
The authenticated encryption schemes Kravatte-SANE and Kravatte-SANSE
permutation-based crypto Farfalle, Kravatte deck functions
2018/11/2
This note defines Kravatte-SANE and Kravatte-SANSE. Both are session authenticated encryption schemes and differ in their robustness with respect to nonce misuse. They are defined as instances of mode...
We study Authenticated Encryption with Associated Data (AEAD) from the viewpoint of composition in arbitrary (single-stage) environments. We use the indifferentiability framework to formalize the intu...