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Reducing the Cost of Authenticity with Leakages: a CIML2-Secure AE Scheme with One Call to a Strongly Protected Tweakable Block Cipher
Leakage-resilience authenticated encryption leveled implementation
2019/5/9
This paper presents CONCRETE (Commit-Encrypt-Send-the-Key) a new Authenticated Encryption mode that offers CIML2 security, that is, ciphertext integrity in the presence of nonce misuse and side-channe...
Elastic-Tweak: A Framework for Short Tweak Tweakable Block Cipher
tweakable block cipher GIFT AES
2019/5/5
Tweakable block cipher (TBC), a stronger notion than standard block ciphers, has wide-scale applications in symmetric-key schemes. At a high level, it provides flexibility in design and (possibly) bet...
CRAFT: Lightweight Tweakable Block Cipher with Efficient Protection Against DFA Attacks
CRAFT block cipher tweakable
2019/2/28
Traditionally, countermeasures against physical attacks are integrated into the implementation of cryptographic primitives after the algorithms have been designed for achieving a certain level of cryp...
ZCZ - Achieving n-bit SPRP Security with a Minimal Number of Tweakable-block-cipher Calls
n-bit security beyond birthday bound tweakable blockcipher
2018/11/19
Strong Pseudo-random Permutations (SPRPs) are important for various applications. In general, it is desirable to base an SPRP on a single-keyed primitive for minimizing the implementation costs. For c...
ZMAC: A Fast Tweakable Block Cipher Mode for Highly Secure Message Authentication
message authentication code tweakable block cipher authenticated encryption
2017/6/8
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). When using a TBC with n-bit ...
In this note, we describe an error in the proof for CLRW2 given by Landecker et al. in
their paper at CRYPTO 2012 on the beyond-birthday-bound security for tweakable block ciphers.
We are able to re...
Implementation of the SCREAM Tweakable Block Cipher in MSP430 Assembly Language
Cryptography encryption MSP430
2015/12/24
The encryption mode of the Tweakable Block Cipher (TBC) of the SCREAM Authenticated Cipher is implemented in the MSP430 microcontroller. Assembly language versions of the TBC are prepared using both p...