COMPUTER ETHICS AND SECURITY
CRYPTOGRAPHY AND ENCRYPTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Ensure message remains secret during transmission between parties
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Ensure message is not altered while in transit between communicating partners
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Verifies sender is who she says she is
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Proves that nobody but on sender could have sent a particular message
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Detailed explanation-1: -This method of coding a plain text message into a secret coded message is called cryptography. The method of disguising plain text to hide the actual data is called encryption. The new encrypted text is called ciphertext.
Detailed explanation-2: -How does encryption work? Encryption takes plain text, like a text message or email, and scrambles it into an unreadable format-called “cipher text.” This helps protect the confidentiality of digital data either stored on computer systems or transmitted through a network like the Internet.
Detailed explanation-3: -Confidentiality is the concept of hiding or scrambling your data so that only the intended recipient has access. This is typically accomplished by some means of Encryption. Data before it has been encrypted is referred to as Plain text, or Clear text. After the data has been encrypted, it is referred to as Cipher text.
Detailed explanation-4: -Cryptography vs encryption: Cryptography is the science of concealing messages with a secret code. Encryption is the way to encrypt and decrypt data. The first is about studying methods to keep a message secret between two parties (like symmetric and asymmetric keys), and the second is about the process itself.