Two-channel cryptographyAuthenticated channelMessage authenticationHash functionsWe propose an Interactive Message Authentication Protocol (IMAP) using two channels; an insecure broadband channel and an authenticated narrow-band channel. We consider the problem in the context of ad hoc networks, where it ...
It should be noted that cryptographic hash functions should be preimage resistant, second preimage resistant and collision resistant. The performance and energy consumption of some hashing functions such as SHA256, SHA512, RIPEMD160, BLAKE256, MD6, and Whirlpool are compared in (Damasevicius, Zi...
h1, h2 are two independent almost-xor universal hash functions. bit security. Out of a particular relevance in this paper, we refer to Cogliati et al.'s 2-round TEM with non-linear mixing function as 2-TEM. However, implementing an axu hash function might be costly [9]. For example ...
The use of private-public key cryptography makes this method not vulnerable to phishing attacks, and protects against session hijacking, man-in-the-middle, and malware attacks. To pass 2FA, users must validate their identity using either a physical device or biometric authenti...
todash - comments/readme all in Chinese numjs - brings some array/math functionality from Python to JS Featured (examples): Universal functions: str_hash() to make a unique number out of a long or short string of text. Not for security or cryptography, but helps a lot to make a unique...
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An important core of signal processing is signal decomposition representing a signal vector\({\mathbf{y}} \in R^{n}\)using a linear combination of some basis functions\(\phi_{i} , 1 \le i \le m\), that is\({\mathbf{y}} = s_{1} \phi_{1} + \ldots + s_{m} \phi_{{\...
Hash functions. Our constructions rely on almost pairwise-independent hash functions. Definition 1 (Almost pairwise-independent hash functions). For δ≥ 1, a function H : KH × X → Y is δ-almost pairwise-independent if Pr [ HKH (x) = y ∧ HKH (x ) = y ]≤δ |Y |2 for ...
In particular, this includes essentially all assumptions used in cryptography such as DDH and LWE, and even very strong assumptions such as the existence of indistinguishability obfuscation (iO). Our results rule out black-box reductions that treat the adversary as well as the leakage-functions ...
reversible cryptographic transformation, encrypting data written to, and decrypting data read from, storage component1600. CE1720can implement, for example, public key cryptography using well-known cryptographic functions, and may be realized in hardware, in software, or in an operable combination ...