Encryption

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Created by: arrey
Created on: 22-04-19 21:31

Define Encryption

The process of encoding a message so that it can be read only by the sender and intended recipient.

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What is Symmetric Encryption

An encrpytion methadology that uses a SINGLE KEY to both encrypt (Encode) and decrypt (decode) data.

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Problems with Symmetric Encryption

1) Key has to be sent from sender to recipient, so vulnerable to intterception 2) If 3rd party gets key, they can read everything in both directions 3) Is prone to being decrypted with maths.

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What is Asymmetric Encryption

A form of encryption where each user communicates using 2 keys - a 'public' and 'Private' key. Public key ENCRYPTS, private key Decrypts.

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Describe process of Encryption via Asymetric

An unencrypted message is encrypted using Public Key -> Turned into CypherText (encrypted text). To be decrypted, the correct Private Key must be used. For this 2-way communication, both parties need each-others public keys.

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Asynchronous Encryption *not sure if in spec.

A processor-heavy form of encrpytion. Used to send a Symmetric Encrpytion key between 2 parties.

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Other cards in this set

Card 2

Front

What is Symmetric Encryption

Back

An encrpytion methadology that uses a SINGLE KEY to both encrypt (Encode) and decrypt (decode) data.

Card 3

Front

Problems with Symmetric Encryption

Back

Card 4

Front

What is Asymmetric Encryption

Back

Card 5

Front

Describe process of Encryption via Asymetric

Back

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Encryption