NETWORK SECURITY
DIGITAL SIGNATURE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Encryption that uses a pair of keys to encrypt and decrypt messages when communicating
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Encryption that is made up of exactly similar parts facing each other or around an axis
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Encryption that uses one key that must be shared among the people receiving a message
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Encryption that has parts which fail to correspond to one another in shape, size, or arrangement
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Detailed explanation-1: -Symmetric keys have been around the longest; they utilize a single key for both the encryption and decryption of the ciphertext. This type of key is called a secret key, because you must keep it secret. Otherwise, anyone in possession of the key can decrypt messages that have been encrypted with it.
Detailed explanation-2: -Asymmetric and symmetric encryption are typically used together: use an asymmetric algorithm such as RSA to securely send someone an AES (symmetric) key. The symmetric key is called the session key; a new session key may be retransmitted periodically via RSA. This approach leverages the strengths of both cryptosystems.
Detailed explanation-3: -Some of the most common use cases for symmetric cryptography include: Banking: Encrypting credit card information or other personally identifiable information (PII) required for transactions. Data storage: Encrypting data stored on a device when that data is not being transferred.