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Separating Standard and Asymmetric Password-Authenticated Key Exchange
PAKE Password-Authenticated Key Exchange
2019/9/23
Password-Authenticated Key Exchange (PAKE) is a method to establish cryptographic keys between two users sharing a low-entropy password. In its asymmetric version, one of the users acts as a server an...
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 ...
CPA on Hardware Implementation of COLM Authenticated Cipher and Protect it with DOM Masking Scheme
Authenticated Cipher COLM CPA
2019/8/22
Authenticated encryption schemes provide both confidentiality and integrity services, simultaneously. Correlation power analysis (CPA) can be a thread for authenticated ciphers, like all physical impl...
Tree authenticated ephemeral keys
public-key cryptography digital signatures key management
2019/8/14
Public key algorithms based on QC-MPDC and QC-LDPC codes for key encapsulation/encryption submitted to NIST post-quantum competition (BIKE, QC-MDPC KEM, LEDA) are vulnerable against reaction attacks b...
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...
Key Exchange and Authenticated Key Exchange with Reusable Keys Based on RLWE Assumption
Authenticated Key Exchange RLWE key reuse
2019/6/10
Key Exchange (KE) is, undoubtedly, one of the most used cryptographic primitives in practice. Its authenticated version, Authenticated Key Exchange (AKE), avoids man-in-the-middle-based attacks by pro...
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,...
Verification of Authenticated Firmware Load
formal methods formal verification model checking
2019/5/28
An important primitive in ensuring security of modern systems-on-chip designs are protocols for authenticated firmware load. These loaders read a firmware binary image from an untrusted input device, ...
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...
How to wrap it up - A formally verified proposal for the use of authenticated wrapping in PKCS\#11
formal analysis security API computational soundness
2019/5/13
Being the most widely used and comprehensive standard for hardware security modules, cryptographic tokens and smart cards, PKCS#11 has been the subject of academic study for years. PKCS#11 provides a ...
Symmetric-key Authenticated Key Exchange (SAKE) with Perfect Forward Secrecy
Authenticated key agreement Symmetric-key cryptography Perfect forward secrecy
2019/5/9
Key exchange protocols in the asymmetric-key setting are known to provide stronger security properties than protocols in symmetric-key cryptography. In particular, they can provide perfect forward sec...
HMAKE: Legacy-Compliant Multi-factor Authenticated Key Exchange from Historical Data
Historical Data Authentication Authenticated Key Exchange
2019/5/9
In this paper, we introduce two lightweight historical data based multi-factor authenticated key exchange (HMAKE) protocols in the random oracle model. Our HMAKE protocols use a symmetric secret key, ...