Fundamentals of InfoSecintermediate
Match each encryption method or item with its role in the lesson.
Answer
Symmetric encryption - Uses one shared key for encryption and decryption, Asymmetric encryption - Uses a public and private key pair, Hybrid encryption - Uses a symmetric key for the file and a public key to protect that key, OpenSSL - Command-line tool used in the lesson's exercises
Explanation
### The pairs
| Item | Matches | Why |
|---|---|---|
| Symmetric encryption | Uses one shared key for encryption and decryption | The same secret key is required to encrypt and decrypt. |
| Asymmetric encryption | Uses a public and private key pair | The lesson uses a public key to encrypt and the corresponding private key to decrypt. |
| Hybrid encryption | Uses a symmetric key for the file and a public key to protect that key | The recipient recovers the symmetric key with a private key, then decrypts the file. |
| OpenSSL | Command-line tool used in the lesson's exercises | The lesson uses its commands for file encryption and decryption. |
### Terms
- **Symmetric encryption**: Encryption and decryption using one shared key.
- **Asymmetric encryption**: Encryption using a public/private key pair.
- **OpenSSL**: A software toolkit used for cryptographic operations and other functions.
### Remember
Match each method to how many keys it uses and which data it protects.
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