Results 61 to 70 of about 449 (128)
On Hashing with Tweakable Ciphers [PDF]
, 2009 Cryptographic hash functions are often built on block ciphers in order to reduce the security analysis of the hash to that of the cipher, and to minimize the hardware size. Well known hash constructs are used in international standards like MD5 and SHA-1.
R. C.-W. Phan +3 more
core +1 more source
BEANIE – A 32-bit Cipher for Cryptographic Mitigations Against Software Attacks
IACR Transactions on Symmetric CryptologyIn modern CPU architectures, various security features to mitigate software attacks can be found. Examples of such features are logical isolation, memory tagging or shadow stacks. Basing such features on cryptographic isolation instead of logical checks
Simon Gerhalter +9 more
doaj +1 more source
Designing Tweakable Enciphering Schemes Using Public Permutations [PDF]
, 2022 A tweakable enciphering scheme (TES) is a length preserving (tweakable) encryption scheme that provides (tweakable) strong pseudorandom permutation security on arbitrarily long messages.
Avijit Dutta +2 more
core
Wide Tweakable Block Ciphers Based on Substitution-Permutation Networks: Security Beyond the Birthday Bound [PDF]
, 2018 Substitution-Permutation Networks (SPNs) refer to a family of constructions which build a $wn$-bit (tweakable) block cipher from $n$-bit public permutations.
Benoît Cogliati, Jooyoung Lee
core
Highly Secure Nonce-based MACs from the Sum of Tweakable Block Ciphers
IACR Transactions on Symmetric Cryptology, 2020 Tweakable block ciphers (TBCs) have proven highly useful to boost the security guarantees of authentication schemes. In 2017, Cogliati et al. proposed two MACs combining TBC and universal hash functions: a nonce-based MAC called NaT and a deterministic ...
Wonseok Choi +6 more
doaj +1 more source
Tweakable Ciphers: Constructions and Applications
, 2015 Tweakable ciphers are a building block used to construct a variety of cryptographic algorithms. Typically, one proves (via a reduction) that a tweakable-cipher-based algorithm is about as secure as the underlying tweakable cipher.
Terashima, Robert Seth
core +1 more source
Cryptanalysis of Full-Round BipBip
IACR Transactions on Symmetric CryptologyBipBip is a low-latency tweakable block cipher proposed by Belkheyar et al. in 2023. It was designed for pointer encryption inside a new memory safety mechanism called Cryptographic Capability Computing (C3). BipBip encrypts blocks of 24 bits using a 40-
Jinliang Wang +5 more
doaj +1 more source
ZMAC+ – An Efficient Variable-output-length Variant of ZMAC
IACR Transactions on Symmetric Cryptology, 2017 There is an ongoing trend in the symmetric-key cryptographic community to construct highly secure modes and message authentication codes based on tweakable block ciphers (TBCs).
Eik List, Mridul Nandi
doaj +1 more source
A Domain Extender for the Ideal Cipher [PDF]
, 2009 peer reviewedWe describe the first domain extender for ideal ciphers, i.e. we show a construction that is indifferentiable from a 2n-bit ideal cipher, given a n-bit ideal cipher.
Dodis, Yevgeniy +7 more
core +1 more source
A Meet-in-the-middle Attack Method of Deoxys-BC [PDF]
Jisuanji kexueThe Deoxys-BC adopting the SPN structure and TWEAK framework is a lightweight tweakable block cipher published at ASIACRPYPT 2014.By researching the internal characteristic and key schedule of the Deoxys-BC,a 6-round meet-in-the-middle distinguisher ...
LI Zheng, LI Manman, CHEN Shaozhen
doaj +1 more source