10 Questions
Symmetric encryption uses different keys for encryption and decryption.
False
Asymmetric encryption is also known as public-key cryptography.
True
The drawback of symmetric encryption is that it requires a lot of computing power to encrypt and decrypt data.
False
Encryption is only used to protect data while it is being processed.
False
Decoding encrypted data back to plaintext requires the use of a decryption key.
True
Symmetric encryption is also known as public-key cryptography.
False
Asymmetric encryption uses two separate keys to encrypt and decrypt data.
True
Symmetric key ciphers are considered more expensive to produce.
False
Encryption works by encoding 'ciphertext' into 'plaintext'.
False
If an unauthorized person gets their hands on the symmetric key, they will be able to decrypt any messages and data sent between the parties.
True
Study Notes
Types of Encryption
- Asymmetric encryption is also known as public-key cryptography.
- Symmetric encryption uses the same key for encryption and decryption.
Drawbacks of Symmetric Encryption
- Requires a lot of computing power to encrypt and decrypt data.
- If an unauthorized person gets the symmetric key, they can decrypt messages and data.
Encryption Process
- Encryption encodes plaintext into ciphertext.
- Decryption requires a decryption key to decode ciphertext back to plaintext.
Key Characteristics
- Symmetric encryption uses one key for encryption and decryption.
- Asymmetric encryption uses two separate keys for encryption and decryption.
Test your knowledge about encryption and its role in safeguarding data from unauthorized access. Learn about the principles of encryption, including its function to protect data at rest, in transit, and while being processed.
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