Results 91 to 100 of about 449 (128)
Post-quantum Security of Tweakable Even-Mansour, and Applications
The tweakable Even-Mansour construction yields a tweakable block cipher from a public random permutation. We prove post-quantum security of tweakable Even-Mansour when attackers have quantum access to the random permutation but only classical access to ...
Bai, Chen +4 more
core +1 more source
Improved meet-in-the-middle attack on Joltik-BC-128
网络与信息安全学报The Joltik-BC, adopting the substitution-permutation network structure and Tweakey framework, was a lightweight tweakable block cipher published at ASIACRPYPT 2014. By researching the internal characteristic of the Joltik-BC, a 6-round meet-in-the-middle
LI Zheng +3 more
doaj
Augmented sets of output differences and new distinguishers for SPN ciphers. [PDF]
Sci RepGirme R, Rohit R, Sarkar S.
europepmc +1 more source
Inverse Free HCTR: A Length Preserving Tweakable Enciphering Mode.
, 2019 Inverse Free HCTR (IFHCTR) is a length-preserving encryption scheme, which provides a tweakable strong pseudorandom permutation. IFHCTR is modification of HCTR scheme in which inverse of block cipher is not required.
Chharchhodawala, Mohammad
core
Tweakable Block Ciphers Secure Beyond the Birthday Bound in the Ideal Cipher Model [PDF]
Lecture Notes in Computer Science, 2018 We propose a new construction of tweakable block ciphers from standard block ciphers. Our construction, dubbed \(\mathsf {XHX2}\), is the cascade of two independent \(\mathsf {XHX}\) block ciphers, so it makes two calls to the underlying block cipher using tweak-dependent keys.
Jooyoung Lee, Lee Jooyoung
exaly +4 more sources
Elastic-Tweak: A Framework for Short Tweak Tweakable Block Cipher [PDF]
, 2021 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) better security bounds. In multi-keyed applications, a TBC with short tweak values can be used to replace multiple keys.
Avik Chakraborti +5 more
core +4 more sources
The MALICIOUS Framework: Embedding Backdoors into Tweakable Block Ciphers [PDF]
, 2020 Inserting backdoors in encryption algorithms has long seemed like a very interesting, yet difficult problem. Most attempts have been unsuccessful for symmetric-key primitives so far and it remains an open problem how to build such ciphers.
Thomas Peyrin, Haoyang Wang 0001
openaire +3 more sources
Some of the next articles are maybe not open access.
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ZMAC: A Fast Tweakable Block Cipher Mode for Highly Secure Message Authentication
Lecture Notes in Computer Science, 2017We propose a new mode of operation called \(\mathsf {ZMAC}\) allowing to construct a (stateless and deterministic) message authentication code (MAC) from a tweakable block cipher (TBC). When using a TBC with n-bit blocks and t-bit tweaks, our construction provides security (as a variable-input-length PRF) beyond the birthday bound with respect to the ...
Tetsu Iwata +2 more
exaly +3 more sources