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In this paper we present several analyses on ChaCha, a software stream cipher. First, we consider a divide-and-conquer approach on the secret key bits by partitioning them. The partitions are…
This paper proposes Prism, Private Verifiable Set Computation over Multi-Owner Outsourced Databases, a secret sharing based approach to compute private set operations (i.e., intersection and union), as well as aggregates…
Secure communication is gained by combining encryption with authentication. In real-world applications encryption commonly takes the form of KEM-DEM hybrid encryption, which is combined with ideal authentication. The pivotal question…
Proposed by Thang and Binh (NICS, 2015 ), DBTRU is a variant of NTRU, where the integer polynomial ring is replaced by two binary truncated polynomial rings GF(2)[x]/(x^n + 1).…
In permissioned digital currencies such as Central Bank Digital Currencies (CBDCs), data disclosure is essential for gathering aggregated statistics about the transactions and activities of the users. These statistics are…
In the current context of the increasing need for data privacy and quantum computing no longer being just a novel concept, Fully Homomorphic Encryption presents us with numerous quantum-secure schemes…
This article presents and explains methodologies that can be employed to recover information from encrypted files generated by ransomware based on cryptanalytic techniques. By using cryptanalysis and related knowledge as…
Since the proposal of Bitcoin in 2008, the world has seen accelerated growth in the field of blockchain and discovered its potential to immensely transform most industries, one of the…
Back in the 90s when the notion of malware first appeared, it was clear that the behaviour and purpose of such software should be closely analysed, such that systems all…
The modern Internet is built on systems that incentivize collection of information about users. In order to minimize privacy loss, it is desirable to prevent these systems from collecting more…