Using Encryption, Keys, And Virtual Private Networks

Encryption technique is the translation of data into a secret code that will prevent hackers or identity thieves from being able to break or read the data that is sent across the network.

Question 11.11. (TCO 10) In a network system, you will normally find that _____ are encrypted using asymmetric cryptography, and _____ are encrypted using symmetric cryptography. (Points : 5)

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.

14. The application data is encrypted by symmetric key encryption algorithm. The pre-master key and nonces from the client and the server generate the symmetric encryption keys to choose the algorithm in the handshake phase.

Most encrypted protocols include a hashing algorithm to ensure no data was altered in transit. This can also help defeat “Man in the Middle” attacks, because by decrypting and re-crypting data, the attacker will alter the signature even if they don’t change any of the key data.

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

Moreover, encryption requires use of a key or cipher, which is used to lock and unlock the hidden data. Such a key is necessary to allow the hidden data to be viewed in an intelligible manner by those who are authorized to view it. However, there is always a risk that the encryption key might fall into the wrong hands, thereby allowing the information to be accessed by unauthorized viewers.

Encryption is a process that turns information that is plainly readable into scrambled form in order to preserve the authenticity, integrity, and privacy of the information that passes through the security perimeter (Michael E. Whitman, 2009). It is the conversion of electronic data into another form, called ciphertext, which cannot be easily understood by anyone except authorized parties (Rouse, 2014).

The key can be changes and unique to each sender and receiver. ("Symmetric encryption,”) states, “There are two types of symmetric algorithms. Stream algorithms (Stream ciphers) and Block algorithms (Block ciphers).” Stream ciphers only encrypt one bit at a time. This can make this cipher faster than block ciphers, but stream ciphers have a security gap that can be harmful for specific types of attacks. These specific attacks can cause information to be compromised. Block ciphers encrypts information in blocks instead of doing it bit by bit. The size of the blocks is usually 64 bits. Triple DES and AES are the most popular symmetric algorithms that use block ciphers.

M2 – Explain the operation and use of encryption technique in ensuring security of transmitted information

Encyption takes data and transforms it into unreadable jargon until a key is used to unlock or decrypt the data back to its original form. Due to its near infallibility, encryption is one the most best ways to secure data (Williams & Sawyer, 2015).

7. Analyze the data encrypted with the RSA cipher. How does this encryption method compare to the other methods these Labs have covered?

VPN is a private network that uses a public network, usually internet, to connect remote sites or users together. It uses virtual connections routed through the Internet from the business's private network to the remote site or employee. VPN is used mostly by the employees who prefer to telecommute or work away from the office. By implementing VPN, the businesses make sure the data is encrypted and can’t be read by the ones who try to intercept the data. The computers at each end of the tunnel encrypt the data entering the tunnel and decrypt it at the other end. An encryption key determines what computations to perform on data in order to encrypt or decrypt it, however, a VPN needs more than just a pair of keys to apply encryption. Hence, a

Encryption is a method of programming data for security so that it appears to be random data. Only the people sending and receiving the information have the key to decrypt the message, which will put it back into its original form making it readable. The only people with the key are the people who are intended to read the message. Not many people know what encryption is. I took a survey of twenty students and asked two questions. The first question I asked was do you know what encryption means and the second question I asked was have you ever heard of anybody using encryption. This is a chart of the information I received:

Encryption is a method of converting plain text to cipher text using some base keys and