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Flashcards by Malachy Moran-Tun, updated more than 1 year ago
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| Question | Answer |
| What is Encryption? | > Process of scrambling data so that is cannot be read by third parties > Done so by using a specific algorithm > Only the intended recipient should know how to decode the data |
| What is a Key in Encryption? | > A pair of very large prime numbers, usually 256 or 1,024 bits long, that the encryption algorithm depends upon to encrypt / decrypt data > It would take an impractical amount of time to guess the key |
| Why is Encryption Important in Wireless Communication? | > Wireless information can be intercepted by anyone, unlike wired communication, which requires a physical connection > Wireless protocols, such as WPA2, encrypt all traffic to prevent this |
| What is Symmetric Encryption? | > The same key is used to encrypt and decrypt data > This encryption is usually done via a cypher algorithm > Both the encrypted data and private key is transferred |
| What is the Problem with Symmetric Encryption? | > Anyone with the key can decrypt the data > The key could be intercepted to decrypt the data |
| What is Asymmetric Encryption? | > Uses two keys: a public key and a private key, related to each other through mathematical operations > The public key is given to the sender by the recipient > This public key is one-way, i.e., it can only encrypt and not decrypt the data > The private key can decrypt the data previously encrypted by the public key. This must never be shared. |
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