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is and co-inventor
Andrew " Tridge " Tridgell ( born 28 February 1967 ) is an Australian computer programmer best known as the author of and contributor to the Samba file server, and co-inventor of the rsync algorithm.
CyKey ( pronounced sai-ki or " psyche ") is named after the Microwriter chord system's co-inventor Cy Endfield, who died in 1995 but the name also reflects its intuitive nature.
ENIAC co-inventor John Mauchly examined the ABC in June 1941, and its influence on the design of the later ENIAC machine is a matter of contention among computer historians.
Zubrin is the co-inventor on a U. S. design patent and a U. S. utility patent on a hybrid rocket / airplane, and on a U. S. utility patent on an oxygen supply system ( see links below ).
He is the discoverer of several graph algorithms, including Tarjan's off-line least common ancestors algorithm, and co-inventor of both splay trees and Fibonacci heaps.
Along with Robert Noyce ( who independently made a similar circuit a few months later ), Kilby is generally credited as co-inventor of the integrated circuit.
He is the inventor of the symmetric key encryption algorithms RC2, RC4, RC5, and co-inventor of RC6.
Internationally he is acknowledged as the co-inventor of object-oriented programming and the programming language Simula with Ole-Johan Dahl in the 1960s.
He is perhaps best known as the co-inventor of the Geiger counter and for the Geiger-Marsden experiment which discovered the Atomic nucleus.
" Early in the book it is learned that Felix Hoenikker ( a fictional co-inventor of the atom bomb ) was playing cat's cradle when the bomb was dropped, and the game is later referenced by his son, Newton Hoenikker.
Another important branch is the engineering / computer components industry ( Federico Faggin, the microprocessor's co-inventor was born in Vicenza ).
He is best known for Rolle's theorem ( 1691 ), and he deserves to be known as the co-inventor in Europe of Gaussian elimination ( 1690 ).
He is known for being a co-inventor of the RSA ( Rivest Shamir Adleman ) cryptosystem in 1977, and of DNA computing.
He is the nephew of Murray Jarvik, a pharmacologist who was the co-inventor of the nicotine patch.
F. Faggin is a co-inventor of 10 patents assigned to Synaptics.
He invented the total energy variometer in 1939, used in soaring planes, and is the co-inventor of an early scheme for magnetically contained nuclear fusion, patent application, 1941.
He has published over 125 research articles in refereed scientific journals, is co-author of 2 books, and co-inventor on 25 patents.
Ochoa is a co-inventor on three patents for an optical inspection system, an optical object recognition method, and a method for noise removal in images.
In 1994, he won the AMS Charles L. Mitchell Award for “ outstanding and unique dissemination of weather forecasts to the nation ’ s public by radio and television .” Abrams is co-inventor of the AccuWeather Exclusive RealFeel Temperature.
Dr. Sobel is co-inventor of the AccuWeather Exclusive RealFeel Temperature.
He is also the co-inventor ( with John Horton Conway ) of a system for naming arbitrarily large powers of 10.
He also helped start the International Obfuscated C Code Contest, and is a co-inventor of the Fowler Noll Vo hash function.

is and RSA
In an asymmetric key algorithm ( e. g., RSA ), there are two separate keys: a public key is published and enables any sender to perform encryption, while a private key is kept secret by the receiver and enables only him to perform correct decryption.
For example, the security available with a 1024-bit key using asymmetric RSA is considered approximately equal in security to an 80-bit key in a symmetric algorithm ( Source: RSA Security ).
The computation is roughly equivalent to breaking a 700 bit RSA key.
Cryptography professor Arjen Lenstra observed that " Last time, it took nine years for us to generalize from a special to a nonspecial, hard-to-factor number " and when asked whether 1024-bit RSA keys are dead, said: " The answer to that question is an unqualified yes.
An RSA key length of 3072 bits should be used if security is required beyond 2030.
According to Professor Gilles Brassard, an expert in quantum computing: " The time needed to factor an RSA integer is the same order as the time needed to use that same integer as modulus for a single RSA encryption.
The primary benefit promised by ECC is a smaller key size, reducing storage and transmission requirements — i. e., that an elliptic curve group could provide the same level of security afforded by an RSA-based system with a large modulus and correspondingly larger key — e. g., a 256bit ECC public key should provide comparable security to a 3072bit RSA public key ( see # Key sizes ).
It is a key element of the RSA algorithm, a public-key encryption method widely used in electronic commerce.
The presumed difficulty of this problem is at the heart of widely used algorithms in cryptography such as RSA.
The ease of primality testing is a crucial part of the RSA algorithm, as it is necessary to find large prime numbers to start with.
RSA relies on the assumption that it is much easier ( i. e., more efficient ) to perform the multiplication of two ( large ) numbers x and y than to calculate x and y ( assumed coprime ) if only the product xy is known.
In 1979, Michael O. Rabin published a related cryptosystem that is provably secure, at least as long as the factorization of the public key remains difficult-it remains an assumption that RSA also enjoys this security.
RSA is an algorithm for public-key cryptography that is based on the presumed difficulty of factoring large integers, the factoring problem.
Whether breaking RSA encryption is as hard as factoring is an open question known as the RSA problem.
However, the CSS algorithm seems to require more characters to describe in a computer programming language than the RSA algorithm ; one of the shortest implementations of DeCSS ( called " efdtt ") is 434 bytes.
Because of this, it has not been distributed by some of the more " inventive " methods used to distribute the RSA algorithm during the days of ITAR — it is not suitable for tattoos, email signatures, etc.

is and algorithm
The algorithm proceeds by successive subtractions in two loops: IF the test B ≥ A yields " yes " ( or true ) ( more accurately the number b in location B is greater than or equal to the number a in location A ) THEN the algorithm specifies B ← B − A ( meaning the number b − a replaces the old b ).
In mathematics and computer science, an algorithm ( originating from al-Khwārizmī, the famous Persian mathematician Muḥammad ibn Mūsā al-Khwārizmī ) is a step-by-step procedure for calculations.
More precisely, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function.
While there is no generally accepted formal definition of " algorithm ," an informal definition could be " a set of rules that precisely defines a sequence of operations.
" For some people, a program is only an algorithm if it stops eventually ; for others, a program is only an algorithm if it stops before a given number of calculation steps.
A prototypical example of an algorithm is Euclid's algorithm to determine the maximum common divisor of two integers ; an example ( there are others ) is described by the flow chart above and as an example in a later section.
The concept of algorithm is also used to define the notion of decidability.
In logic, the time that an algorithm requires to complete cannot be measured, as it is not apparently related with our customary physical dimension.
Gurevich: "... Turing's informal argument in favor of his thesis justifies a stronger thesis: every algorithm can be simulated by a Turing machine ... according to Savage, an algorithm is a computational process defined by a Turing machine ".
Typically, when an algorithm is associated with processing information, data is read from an input source, written to an output device, and / or stored for further processing.
Stored data is regarded as part of the internal state of the entity performing the algorithm.
Because an algorithm is a precise list of precise steps, the order of computation will always be critical to the functioning of the algorithm.
In computer systems, an algorithm is basically an instance of logic written in software by software developers to be effective for the intended " target " computer ( s ), in order for the target machines to produce output from given input ( perhaps null ).
is the length of time taken to perform the algorithm.
Simulation of an algorithm: computer ( computor ) language: Knuth advises the reader that " the best way to learn an algorithm is to try it.

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