Match each cryptographic term with its corresponding description: Terms: 1. Substitution cipher 2. Transposition cipher 3. Advanced Encryption Standard (AES) Descriptions: A. Replaces symbols in the plaintext with other symbols according to a rule B. Rearranges the order of plaintext characters without altering their identities C. A standardized symmetric-key block cipher algorithm
Answer
1 - A, 2 - B, 3 - C
Explanation
### The pairs
| Item | Matches | Why |
|---|---|---|
| Substitution cipher | Replaces symbols according to a rule | Substitution changes which symbol appears in a position. |
| Transposition cipher | Rearranges the positions of symbols | Transposition changes order without defining itself by symbol replacement. |
| Advanced Encryption Standard (AES) | A symmetric encryption algorithm | The course lists this as a common symmetric algorithm. |
### Terms
- **Advanced Encryption Standard (AES)**: a symmetric encryption algorithm identified in the course material.
### Remember
Cipher types describe how symbols change; algorithm names identify particular encryption methods.
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