Data Encryption Essay

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:

Yes , it makes a sense in the physical layer. It is used for radio communication but yeah mostly in miltary grade radio communication. For instance , there might be a blank noise while being actual communication. Such a encoding does not process bytes it directly processes the electromagnetic waves so encryption need to be implemented at physical layer.

Encryption policy: It uses the secret encryption key of the strategy of resistance data. This plan, gives or is meaningless without notice, or a fine. So safety data control always improves disaster limitation, you understand. Be randomly shuffled arranged in the host computer database is useless, for example, it is possible that the data is stolen; it is classified as a software engineer.

Character Data is how users translate words and phrases into a language computers understand and communicate back to said users in a universal presentation. Character data is made up of two things, characters and strings. First, alphabetic letters, numbers, and symbols are setup and defined in a specific way that the CPU can understand. All twenty six letters of the English alphabet are used, but only in an uppercase presentation. Basic numbers ranging from zero to nine are defined and used. From using just these ten numbers, we can create any other number the system may need to represent. These letters, numbers, and symbols individually are called characters. Any grouping of characters is called a string.

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.

Data, often referred to as plaintext, is encrypted using an encryption algorithm and an encryption key. This process generates ciphertext that can only be viewed in its original form if decrypted with the correct key. Decryption is simply the inverse of encryption, following the same steps but reversing the order in which the keys are applied (Rouse, 2014).

It converts the functions for the application layer data. It compresses the data allowing it to be encrypted and more secure. It represents the data in graphical formats such as in JPEG, BMP, MPEG etc. as well as characterising the characters into text or ASCII.

Personal privacy today is a controversial and complex topic, which is influenced by a number of factors. There is an integral role that databases play in this highly debated topic. The fact that many people now carry out their transactions electronically is another important factor. There is also pressure on personal privacy for increased national security around the world to combat terrorism. In addition, personal privacy is even threatened by commercial factors and the Internet.

For example, the word computer would be changed to FRPSXWHU (Parsons 328). This method was easy because it was just a simple offset of the alphabet and you could just line up the letters of both alphabets and figure out what the message was.

When we enter data onto a computer system or other device by way of the keyboard, each character is encoded into an equivalent binary coded pattern, using one of the standard coding schemes that are used for the transposition of information. When representing all characters on a keyboard, an exclusive pattern of 7 or 8 bits in size is used. The use of 7 bits means that 128 different elements can be represented, while 8 bits can represent 256 elements. At the receiving end the process is reversed to show the character key strike instead of the binary code.

Answer 6-1: Substitution ciphers are a method of encryption by which units of plaintext are substituted with ciphertext according to a regular system; the "units" may be single letters (the most common), pairs of letters, triplets of letters, mixtures of the above, and so forth (WordNik, 2014). In other words, if you’re sending a message (plaintext) you want to keep secret, it can be transformed into an enciphered message (cipertext) using a different alphabet. The person receiving the message will then have to decrypt it. Transposition cipers are simple data encryption schemes in which plaintext characters are shifted in some regular pattern to form ciphertext (Gustavus, 2014). In other words, it’s a simpler way to send secret messages; however, it isn’t as secure and can be decrypted easily. For an example, I have encrypted the following phrase using rot13 encryption: “It is critical for network administrators to understand cryptography.” I was returned with: “Vg vf pevgvpny sbe argjbex nqzvavfgengbef gb haqrefgnaq pelcgbtencul”.

As the data is exposed to the whole program there is no security for your data. This could mean that a new programmer could corrupt the data accidentally by creating functions.

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