Found 359 Articles for Information Security

RSA is a cryptosystem for public-key encryption, and it is broadly used for securing sensitive information, specifically when being sent over an insecure network including the Internet.RSA algorithm is the most popular asymmetric key cryptographic algorithm depends on the mathematical fact that it is simply to discover and multiply large prime numbers but complex to factor their product. It needs both private and public key.Example of RSA AlgorithmLet us take an example of this procedure to learn the concepts. For ease of reading, it can write the example values along with the algorithm steps.Choose two large prime numbers P and ... Read More

The RSA algorithm is a public-key signature algorithm founded by Ron Rivest, Adi Shamir, and Leonard Adleman. RSA can also encrypt and decrypt general data to securely exchange information along with managing digital signature verification.The RSA algorithm is based on the complexity contained in the factorization of large numbers. The RSA algorithm depends on the fact that there is no effective method to factor very large numbers. Therefore, deducing an RSA key would take a large amount of time and processing power.RSA algorithm is asymmetric cryptography algorithm as it operate on two different keys such as public key and private ... Read More

The Rivest-Shamir-Adleman (RSA) encryption algorithm is an asymmetric encryption algorithm that is broadly used in several products and services. Asymmetric encryption need a key pair that is mathematically connected to encrypt and decrypt data.A private and public key are generated, with the public key being available to anyone and the private key being a secret known only by the key set creator. With RSA, the private or public key can encrypt the information, while the other key decrypts it. This is the reasons that RSA is the generally used asymmetric encryption algorithm.The choice to encrypt with either the private or ... Read More

RSA stands for Rivest, Shamir, Adleman. They are the founder of public-key encryption technology, which is a public-key cryptosystem for protected information transmission. It is a standard encryption approach for transmitting responsive information, particularly while transferring data over the internet.The Rivest-Shamir-Adleman (RSA) encryption algorithm is an asymmetric encryption algorithm that is broadly used in some products and services. A private and public key are generated, with the public key being available to anyone and the private key being a private known only by the key set creator.With RSA, the private or public key can encrypt the information, while the different ... Read More

Public key cryptography is called as asymmetric key cryptography. It is an essential encryption and decryption pattern in online software. It uses two different keys termed as public key and private key.In symmetric key algorithms, only one key is used to implement encryption and decryption operations. But in public key cryptography, there are two keys are used to implement encryption and decryption operations. If one key is used to implement encryption operation, and second key is used to perform decryption operation vice versa.The keys generated in public key cryptography are large including 512, 1024, 2048, etc., bits. These keys are ... Read More

Public key cryptography has become an essential means of providing confidentiality, especially through its need of key distribution, where users seeking private connection exchange encryption keys. It also features digital signatures which enable users to sign keys to check their identities. The approach of public key cryptography derivative from an attempt to attack two of the most complex problems related to symmetric encryption. The first issue is that key distribution. Key distribution under symmetric encryption needed such as − that two communicants already shared a key, which somehow has been ... Read More

Miller Rabin is a fast approach to test primality of the large numbers. This algorithm is called a Rabin-miller primality test and this algorithm decides whether number is prime which is same to other tests including Fermat primality Test and Solovay- Strassen primality test.This test is based on equality or group of equalities that hold the true for prime values, thus checks whether they hold for the number, that it is required to test for primality.This algorithm is most useful known primality testing algorithm and can be used in different software libraries that based on RSA encryption and best instance ... Read More

The Miller-Rabin Permality test combines the Fermat test and the Fermat root test in a classic method to find a strong pseudoprime. In this test, it can write n – 1 as the product of an odd number m and a power of 2 −$$\mathrm{n-1=m\, x\, 2^{k}}$$The Fermat test in base a can be composed as −$$\mathrm{a^{n-1}\, =\, a^{m\, x\, 2k}=\left [ a^{m} \right ]^{2k}=\left [ a^{m} \right ]\frac{2^{2}\cdot \cdot \cdot 2}{K\, times}}$$In other words, rather than calculating an−1(mod n) in one step, it can do it in k+1 steps. The advantage of using k + 1 is that each ... Read More

A primality test is an algorithm to decide whether an input number is prime. Some primality tests are deterministic. They always correctly decide if a number is prime or composite.The fastest known deterministic primality test was invented in 2004. There are three computer scientists, such as Agrawal, Kayal, and Saxena, invented the AKS primality test that operated in O˜ (log(n)6 ) time, where O˜ (f(n)) is represented as O(f(n).log(f(n))k) for some integer k [1]. Although a significant breakthrough, this speed is rather slow when compared to information security requirement.The advantage of prime numbers are that they are utilized in cryptography. ... Read More

Euler's theorem is a generalization of Fermat's little theorem handling with powers of integers modulo positive integers. It increase in applications of elementary number theory, such as the theoretical supporting structure for the RSA cryptosystem.This theorem states that for every a and n that are relatively prime −$$\mathrm{a^{\phi \left ( n \right )}\, \equiv\, 1\left ( mod \, n \right ) }$$where $\mathrm{\phi}$(n) is Euler's totient function, which counts the number of positive integers less than n that are relatively prime to n.Consider the set of such integers −R = {x1, x2, … x$\mathrm{\phi}$(n)}, i.e., each element xi of R ... Read More