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Table Redundancy Method for Protecting against Differential Fault Analysis in the White-box Cryptography
Differential fault analysis white-box cryptography countermeasure
2019/8/26
Differential Fault Analysis (DFA) intentionally injects some fault into the encryption process and analyzes a secret key from the mathematical relationship between faulty and fault-free ciphertexts. E...
Related-Key Differential Slide Attack Against Fountain V1
lightweight cryptography Fountain slide attacks
2019/8/14
The stream cipher FOUNTAIN was introduced in April 2019 as one of the candidates in the NIST lightweight crypto standardization process. In this paper we introduce a slide attack that leads to the con...
Securely Sampling Biased Coins with Applications to Differential Privacy
distributed differential privacy secure computation
2019/7/17
We design an efficient method for sampling a large batch of dd independent coins with a given bias p∈[0,1]p∈[0,1]. The folklore secure computation method for doing so requires O(λ+logd)O(λ+logd...
In recent literature, there has been a particular interest in studying nonce based AE schemes in the light of fault based attacks as they seem to present an automatic protection against Differential F...
TRIFLE is a Round 1 candidate of the NIST Lightweight Cryptography Standardization process. In this paper, we present an interesting 1-round iterative differential characteristic of the underlying blo...
On Misuse of Nonce-Misuse Resistance: Adapting Differential Fault Attacks on (few) CAESAR Winners
Fault Attacks DFA SPNs
2019/5/31
In this paper, we study DFA attacks on some of the CAESAR competition winners. We study the challenges imposed by the design of these modes, such as masking of the ciphertext. We also show that a very...
Iterated Truncated Differential for Internal Keyed Permutation of FlexAEAD
FlexAEAD Distinguisher Iterated Differential
2019/5/23
In this draft, the internal keyed permutation of FlexAEAD has been analysed. In our analysis, we have first reported an iterated truncated differential for one round which holds with a probability of ...
We consider the problem of designing scalable, robust protocols for computing statistics about sensitive data. Specifically, we look at how best to design differentially private protocols in a distrib...
Variants of the AES Key Schedule for Better Truncated Differential Bounds
AES Key schedule Related-key Truncated Differential
2019/2/27
Differential attacks are one of the main ways to attack block ciphers. Hence, we need to evaluate the security of a given block cipher against these attacks. One way to do so is to determine the minim...
Analysis and Improvement of Differential Computation Attacks against Internally-Encoded White-Box Implementations
white-box cryptography internal encoding differential computation analysis
2019/1/29
White-box cryptography is the last security barrier for a cryptographic software implementation deployed in an untrusted environment. The principle of internal encodings is a commonly used white-box t...
STP Models of Optimal Differential and Linear Trail for S-box Based Ciphers
STP Differential trail Linear trail
2019/1/16
Automatic tools have played an important role in designing new cryptographic primitives and evaluating the security of ciphers. Simple Theorem Prover constraint solver (STP) has been used to search fo...
Improving the MILP-based Security Evaluation Algorithms against Differential Cryptanalysis Using Divide-and-Conquer Approach
Block Cipher Differential Cryptanalysis MILP
2019/1/9
In recent years, Mixed Integer Linear Programming (MILP) has been widely used in cryptanalysis of symmetric-key primitives. For differential and linear cryptanalysis, MILP can be used to solve the two...
Privacy Loss Classes: The Central Limit Theorem in Differential Privacy
differential privacy privacy loss
2018/11/19
In recent years, privacy enhancing technologies have gained tremendous momentum and they are expected to keep a sustained importance. Quantifying the degree of privacy offered by any mechanism working...
Encrypted Databases for Differential Privacy
structured encryption differential privacy statistical databases
2018/11/14
The problem of privatizing statistical databases is a well-studied topic that has culminated with the notion of differential privacy. The complementary problem of securing these databases, however, ha...
Rectangle and Impossible-differential Cryptanalysis on Versions of ForkAES
aes differential cryptanalysis tweakable block cipher
2018/11/12
The rapid distribution of lightweight devices raised the demand for efficient encryption and authenticated encryption schemes for small messages. For this purpose, Andreeva et al. recently proposed fo...