Public Key Cryptography : Cryptography

Public and private key is an encryption technique used to secure data. Explain the operation and use of any encryption technique from the list below.

With the ever increasing surge of digital communications and transactions, a tougher level of security is essential in order to safeguard the user and their data transactions. Systems, personal computers, mobile phones, servers, and even smart cards are all being used everywhere and there is a need to secure communications. With the influx of data management, there is a clear race between the two challengers in the game known as Information Security between developers and the hackers. PKI was designed to influence the Internet infrastructure for means of communication (Samuelle, 2011). While decreasing antagonistic misuse of data, reducing data theft, and providing an extra layer of trust through key pairs and

2. GnuPG allows to encrypt and sign your data and communication, features a versatile key managment system as well as access modules for all kind of public key directories.

1) Digital Certificates: Digital authentications are settled upon information structures that join qualities of an association with having its relating open key. The key necessity for a Digital Certificate is the reality it should be approved upon by recognition} expert (CA). By being marked by a perceived and trusted specialist an electronic computerized testament gives the certification

Generally speaking, modern encryption techniques fall into one of two categories - symmetric (homogeneous) and asymmetric (heterogeneous). Symmetric encryption is a system of communication whereby both parties share the same key to encode and decode a message. The Spartan generals used this method with their scytales.

Encryption is the conversion of electronic data into another form, called cipher text, which cannot be easily understood by anyone except authorized parties. The primary purpose of encryption is to protect the confidentiality of digital data stored on computer systems or transmitted via the Internet or other computer networks. Modern encryption algorithms play

21.) Digital certificate A digital certificate is an electronic "passport" that allows a person, computer or organization to exchange information securely over the Internet using the public key infrastructure (PKI). A digital certificate may also be referred to as a public key certificate.

There’s two types used in encryption, there’s the public key which is used to encrypt the information you trying to send. There is also the private key which is used to decrypt the message. The public and private key is used in many things for example emails and telephones. The reason why it’s so important that these two keys are used is because the message you’re sending stays between you and the receiver, therefore the message will not get interrupted by an invader.

PKI provides the capabilities of digital signatures and encryption to implement what security services? Name at least three.

Encryption is one of the most important technologies of cybersecurity designed to protect the confidentiality of data. Encryption uses a complex mathematical formula and a key which randomizes and creates a coded or encrypted message. Only the party that the message or data is originally intended for can read in plain text by using the appropriate key to decrypt the data. Some encryption algorithms such as AES (Advanced Encryption Standard) are very complex

The rudimentary idea of public key cryptography is that there are two keys that are related. One key can be passed openly and freely between parties or published in a public repository; the other key must remain private. There are different types of public key algorithms, each with its own characteristics. It is not always possible to substitute one algorithm for another. If two algorithms can perform the same function, the detailed tool by which that outcome is obtained fluctuates. With public key cryptography, the two keys are used in sequence. If the public key is used first, followed by the private key, then this is a key exchange action. If the private key is used first, followed by the public key, this is a digital signature

Smart card is used in information technology as a portable integrated device with data storage and data processing capabilities. In other fields, smart cards used in health systems became popular due to their increased capability and performance. Its efficient use with easy and fast data access leads to implementation especially in security systems.

Encryption: encryption is carried out on the sender side, hence transferred plain text into the cipher text and forwarded over the network.

Symmetric key encryption is where the key is used to not only encrypt a message but to decrypt it as well. This is also known as conventional and secret key encryption. Symmetric key encryption is rarely used due to the fact that the person who encrypts the information has to get the key to the person who decrypts the information. This is uncommonly used because if the key is intercepted by an unauthorized person, there can

Asymmetric key system (or asymmetric algorithm; public key): A cryptographic system that uses two separate keys: one key to encrypt and a different key to decrypt information. These keys are known as public and private