Hybrid Cryptography Using Symmetric Key Encryption

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.

When a fellow general received the message, he would wrap the paper around his corresponding scytale to decipher the message (Tyson 2014). Since the advent of computers though, encryption has become increasing important and relies almost solely on cryptographic means to secure information. When speaking about encryption today, it refers more to the process rather than the mathematical formulas used to scramble data. The basic idea behind encrypting a computer message is such that it is scrambled with a sequence of random bits, known as a key, and only parties with the corresponding key can transpose it back into a comprehensible format. These keys are created via a cipher, otherwise known as an algorithm. When a user sends a message, known as the plaintext, across a network, the computer applies an algorithm to the information to encode it, resulting in a ciphertext (Encryption Basics 2014). This method can be best summarized visually:

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.

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

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).

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).

Type of operations used for transforming plaintext to cipher text. All encryption algorithms are based on two general principles. Those are substitution, in which each element in the plain text is mapped into another element and transposition in which elements in the plaintext are rearranged. The fundamental requirement is that no information be lost. Most systems referred to as product systems, involved multiple stages of substitution and transposition [2].

According to the Newton's Telecom Dictionary, cryptography is, "the process of concealing the contents of a message from all except those who know the key," (207). It is also defined as ". . . the science, or art, of secret writing," (Huffman 2). The word "cryptography" originated

Encryption converts data from a readable form to unintelligible text. Only authorized users are able to convert the data back into a readable format. (Sayles & Trawick,

Encryption is a process of converting Plain text into Cipher text. This un-readable message can be communicated over an unsecure network without the fear of loss of integrity and confidentiality. Encryption process is done using encryption algorithm.

Decryption: decryption is carried out on the receiver side to translate the cipher text into the plaintext with the same key that is used at the sender side.

Encryption is a process that scrambles data to protect it from being read by anyone but the intended receiver. An encryption device encrypts data before placing it on a network. A decryption device decrypts the data before passing it to an application. A router, server, end system, or dedicated device can act as an encryption or decryption device. Data that is encrypted is called ciphered data (or simply encrypted data). Data that is not encrypted is called plain text or clear text.

When a message is in its original form it is known as plaintext or cleartext and the process that involves masking the text to hide the content is known as encryption. Once a message is encrypted it is referred to as ciphertext . Cryptography or crypto for short has always served the same purpose of encrypting information for reasons of privacy, deception, or security. Cryptographic methodologies could date back to the ancient Egyptian era where standard hieroglyphs were altered to mask true meaning . It is more likely that the first introduction of crypto followed the invention of writing and evolved in line with forms of communication. The use of crypto has been seen as extremely advantageous in times of war, where communication

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: