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Universal tweakable Even-Mansour cipher and its applications
The construction of the tweakable Even-Mansour cipher is in fact the designs of permutations, mask operations, and masking functions. For...
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Collision-Resistant and Pseudorandom Hash Function Using Tweakable Block Cipher
This paper presents a method to construct a keyed Merkle-Damgård hash function satisfying collision resistance and the pseudorandom function property...
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Compactly Committing Authenticated Encryption Using Encryptment and Tweakable Block Cipher
Message franking is a feature of end-to-end encrypted messaging introduced by Facebook that enables users to report abusive contents in a verifiable...
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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...
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Elastic-Tweak: A Framework for Short Tweak Tweakable Block Cipher
Tweakable block cipher (TBC), a stronger notion than standard block ciphers, has wide-scale applications in symmetric-key schemes. At a high level,...
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Offset-Based BBB-Secure Tweakable Block-ciphers with Updatable Caches
A nonce-respecting tweakable blockcipher is the building-block for the OCB authenticated encryption mode. An XEX-based TBC is used to process each...
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Masked Iterate-Fork-Iterate: A New Design Paradigm for Tweakable Expanding Pseudorandom Function
Many modes of operations for block ciphers or tweakable block ciphers do not require invertibility from their underlying primitive. In this work, we...
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Just tweak! Asymptotically optimal security for the cascaded LRW1 tweakable blockcipher
Recent work of Bao et al. (in: Canteaut and Ishai (eds) EUROCRYPT 2020, Part II. LNCS. Springer, Heidelberg 2020) repopularized tweakable...
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RAMus- A New Lightweight Block Cipher for RAM Encryption
Over the past decades, there has been a dramatic increase of the attacks recovering the data from the RAM memory. These have heightened the need for...
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LLLWBC: A New Low-Latency Light-Weight Block Cipher
Lightweight cipher suitable for resource constrained environment is crucial to the security of applications such as RFID, Internet of Things, etc....
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More About Block Ciphers
A block cipher is much more than just an encryption algorithm. It can be used as a versatile building block with which a diverse set of cryptographic...
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Tweakable Block Mode of Operation for Disk Encompression Using Cipher Text Stealing
In this paper, we study a particular class of symmetric algorithms that aim to ensure confidentiality by using a functionality that is tweakable...
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The Exact Multi-user Security of (Tweakable) Key Alternating Ciphers with a Single Permutation
We prove the tight multi-user (mu) security of the (tweakable) key alternating cipher (KAC) for any round r with a single permutation and r-wise...
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ZLR: a fast online authenticated encryption scheme achieving full security
Online authenticated encryption has been considered of practical relevance in light-weight environments due to low latency and constant memory usage....
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Towards Minimizing Tweakable Blockcipher-Based Generalized Feistel Networks
A generalized Feistel network (GFN) is a classical approach to constructing a blockcipher from pseudorandom functions (PRFs). Recently, Nakaya and...
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On improved security bounds of one block ciphers mode of operation for protection of block-oriented system storage devices
In the end of 2022 in Russian Federation recommendations for standardization were adopted defining a block ciphers mode of operation for...
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Pholkos – Efficient Large-State Tweakable Block Ciphers from the AES Round Function
This paper proposes Pholkos, a family of heavyweight tweakable block ciphers with state and key sizes of...
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FUTURE: A Lightweight Block Cipher Using an Optimal Diffusion Matrix
In this work, we present FUTURE, a new 64-bit lightweight SPN-based block cipher. FUTURE encrypts data in a single clock cycle with a very low...
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A Modular Approach to the Incompressibility of Block-Cipher-Based AEADs
Incompressibility is one of the most fundamental security goals in white-box cryptography. Given recent advances in the design of efficient and...