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Group 9 Thian Yan Cheng Ignatius Lee Khay Vhin Terrens Bin Chew Bee…
Group 9
Thian Yan Cheng
Ignatius Lee Khay Vhin
Terrens Bin Chew Bee Hock
Khiew Jung Huat
ENCRYPTION TECHNOLOGY
WHAT IS ENCRYPTION TECHNOLOGY ?
-Encryption is the method by which information is converted into secret code that hides the information's true meaning. The science of encrypting and decrypting information is called cryptography. In computing, unencrypted data is also known as plaintext, and encrypted data is called ciphertext.
EXAMPLES OF ENCRYPTION
-When a confidential email needs to be sent and you use a program that obscures its content. A data protection strategy for electronic information that is transmitted over the Internet. Encryption prevents the unauthorized access of the transmitted information.
Define the following cryptographic terminologies
a. Encryption
◦ Method of transforming plain text into an unreadable format
b. Cipher Text
◦ The scrambled format of data after being encrypted
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3. How Encryption can prevent data from being altered
Encryption takes a plain text, like message, email or even your username and password and scrambles it into an unreadable format called "cipher text".
When the intended recipient accesses the encrypted text, the information is translated back into its original form. This is called decryption.
To translate the massage into its original format the sender and recipient have to use a "secret" encryption key which is a collection of algorithms that scrambles and unscrambles data back to its readable format.
Cipher text or cypher text is a result of encryption performed on plaintext using algorithm, called cipher. Ciphertext is also known as encrypted or encoded information because it contains a form of the original plaintext that is unreadable by a human or computer without the proper cipher to decrypt it. This process prevents the loss of sensitive information via hacking
Define the following cryptographic terminologies
c. Decryption
-Decryption is a process that transforms encrypted information into its original format.
-The process of encryption transforms information from its original format — called plaintext — into an unreadable format — called ciphertext — while it is being shared or transmitted
d. Cryptanalysis
-Cryptanalysis is a process of finding weaknesses in cryptographic algorithms and using these weaknesses to decipher the ciphertext without knowing the secret key (instance deduction).
