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LSH (hash Function)
LSH is a cryptographic hash function designed in 2014 by South Korea to provide integrity in general-purpose software environments such as Personal computer, PCs and smart devices. LSH is one of the cryptographic algorithms approved by the Korean Cryptographic Module Validation Program (KCMVP). And it is the national standard of South Korea (KS X 3262). Specification The overall structure of the hash function LSH is shown in the following figure. The hash function LSH has the wide-pipe Merkle-Damgård structure with one-zeros padding. The message hashing process of LSH consists of the following three stages. # ''Initialization'': #* One-zeros padding of a given bit string message. #* Conversion to 32-word array message blocks from the padded bit string message. #* Initialization of a chaining variable with the initialization vector. # ''Compression'': #* Updating of chaining variables by iteration of a compression function with message blocks. # ''Finalization'': #* Generati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptographic Hash Function
A cryptographic hash function (CHF) is a hash algorithm (a map (mathematics), map of an arbitrary binary string to a binary string with a fixed size of n bits) that has special properties desirable for a cryptography, cryptographic application: * the probability of a particular n-bit output result (hash value) for a random input string ("message") is 2^ (as for any good hash), so the hash value can be used as a representative of the message; * finding an input string that matches a given hash value (a ''pre-image'') is infeasible, ''assuming all input strings are equally likely.'' The ''resistance'' to such search is quantified as security strength: a cryptographic hash with n bits of hash value is expected to have a ''preimage resistance'' strength of n bits, unless the space of possible input values is significantly smaller than 2^ (a practical example can be found in ); * a ''second preimage'' resistance strength, with the same expectations, refers to a similar problem of f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Korea
South Korea, officially the Republic of Korea (ROK), is a country in East Asia. It constitutes the southern half of the Korea, Korean Peninsula and borders North Korea along the Korean Demilitarized Zone, with the Yellow Sea to the west and the Sea of Japan to the east. Like North Korea, South Korea claims to be the sole legitimate government of the entire peninsula and List of islands of South Korea, adjacent islands. It has Demographics of South Korea, a population of about 52 million, of which half live in the Seoul Metropolitan Area, the List of largest cities, ninth most populous metropolitan area in the world; other major cities include Busan, Daegu, and Incheon. The Korean Peninsula was inhabited as early as the Lower Paleolithic period. Gojoseon, Its first kingdom was noted in Chinese records in the early seventh century BC. From the mid first century BC, various Polity, polities consolidated into the rival Three Kingdoms of Korea, kingdoms of Goguryeo, Baekje, and Sil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Personal Computer
A personal computer, commonly referred to as PC or computer, is a computer designed for individual use. It is typically used for tasks such as Word processor, word processing, web browser, internet browsing, email, multimedia playback, and PC game, gaming. Personal computers are intended to be operated directly by an end user, rather than by a computer expert or technician. Unlike large, costly minicomputers and mainframes, time-sharing by many people at the same time is not used with personal computers. The term home computer has also been used, primarily in the late 1970s and 1980s. The advent of personal computers and the concurrent Digital Revolution have significantly affected the lives of people. Institutional or corporate computer owners in the 1960s had to write their own programs to do any useful work with computers. While personal computer users may develop their applications, usually these systems run commercial software, free-of-charge software ("freeware"), which i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smart Device
A smart device is an electronic device, generally connected to other devices or networks via different wireless protocols (such as Bluetooth, Zigbee, near-field communication, Wi-Fi, NearLink, Li-Fi, or 5G) that can operate to some extent interactively and autonomously. Several notable types of smart devices are smartphones, smart speakers, smart cars, smart cards, smart thermostats, smart doorbells, smart locks, smart refrigerators, phablets and tablets, smartwatches, smart bands, smart keychains, smart glasses, smart TV, and many others. The term can also refer to a device that exhibits some properties of ubiquitous computing, including—although not necessarily—machine learning. Smart devices can be designed to support a variety of form factors, a range of properties pertaining to ubiquitous computing and to be used in three main system environments: physical world, human-centered environments, and distributed computing environments. Smart homes indicate the pres ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LSH Structure
LSH may refer to: Computing * LSH (hash function), in cryptography * lsh, a UNIX secure shell * Locality-sensitive hashing, in algorithms Ship types * Landing Ship Headquarters, UK Royal Navy * ''Landing Ship, Heavy'', a hull classification symbol, Australian and US Navy Other uses * Lashio Airport, Myanmar (IATA: LSH) * Legion of Super-Heroes The Legion of Super-Heroes is a superhero team appearing in American comic books published by DC Comics. Created by writer Otto Binder and artist Al Plastino, the Legion is a group of superpowered beings living in the 30th and 31st centuries of t ..., a fictional team in DC Comics * Lysergic acid hydroxyethylamide, an alkaloid See also * Lash (other) * Lish (other) * LSHS (other) * Lush (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cryptographic Hash Functions
A cryptographic hash function (CHF) is a hash algorithm (a map of an arbitrary binary string to a binary string with a fixed size of n bits) that has special properties desirable for a cryptographic application: * the probability of a particular n-bit output result (hash value) for a random input string ("message") is 2^ (as for any good hash), so the hash value can be used as a representative of the message; * finding an input string that matches a given hash value (a ''pre-image'') is infeasible, ''assuming all input strings are equally likely.'' The ''resistance'' to such search is quantified as security strength: a cryptographic hash with n bits of hash value is expected to have a ''preimage resistance'' strength of n bits, unless the space of possible input values is significantly smaller than 2^ (a practical example can be found in ); * a ''second preimage'' resistance strength, with the same expectations, refers to a similar problem of finding a second message that mat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
