COMPUTER SCIENCE AND ENGINEERING
CLOUD COMPUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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numbers that have been changed into a type of code which needs a card to read it again
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numbers that have been changed into a type of code which needs a fob to read it again
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data that has been changed into a type of code which needs a key to read it again
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emails that have been changed into a type of code which needs a key to read it again
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Detailed explanation-1: -Data encryption translates data into another form, or code, so that only people with access to a secret key (formally called a decryption key) or password can read it. Encrypted data is commonly referred to as ciphertext, while unencrypted data is called plaintext.
Detailed explanation-2: -Data encryption is a way of translating data from plaintext (unencrypted) to ciphertext (encrypted). Users can access encrypted data with an encryption key and decrypted data with a decryption key. Protecting your data. Types of data encryption: asymmetric vs symmetric.
Detailed explanation-3: -The two keys are called the “public key” and the “private key” of the user. The network also has a public key and a private key. The sender uses a public key to encrypt the message. The recipient uses its private key to decrypt the message.
Detailed explanation-4: -What is symmetric encryption? In symmetric encryption the same key is used for encryption and decryption.
Detailed explanation-5: -For symmetric encryption methods, the sender must share the private key with the receiver to access the data or information. It is an old encryption technique that is very well known.