๐ Topic Summary
Data encryption is like a secret code that transforms readable information (plaintext) into an unreadable format (ciphertext). This protects sensitive data from unauthorized access. In Grade 8 Computer Science, you'll learn basic encryption concepts using Python or JavaScript, focusing on simple methods to encode and decode messages. This is an important skill for cybersecurity and protecting your privacy online! ๐ก๏ธ Think of it like writing a secret diary that only you can unlock!
๐ Part A: Vocabulary
Match the term with its definition:
| Term |
Definition |
| 1. Encryption |
A. The original, readable data. |
| 2. Decryption |
B. The process of converting ciphertext back into plaintext. |
| 3. Plaintext |
C. The process of converting plaintext into ciphertext. |
| 4. Ciphertext |
D. A secret key used to encrypt and decrypt data. |
| 5. Key |
E. The unreadable, encrypted data. |
Show Answers
- 1-C
- 2-B
- 3-A
- 4-E
- 5-D
โ๏ธ Part B: Fill in the Blanks
Complete the following paragraph with the correct words.
__________ is the process of converting readable data into an unreadable format to protect it from unauthorized access. The unreadable format is called __________. To convert the ciphertext back into its original form, we use a process called __________. A __________ is often used during encryption and decryption to ensure only authorized users can access the data. Securing data in this manner is crucial for maintaining __________.
Possible Words: plaintext, ciphertext, encryption, decryption, key, security
Show Answers
- Encryption
- Ciphertext
- Decryption
- Key
- Security
๐ค Part C: Critical Thinking
Why is data encryption important in today's digital world? Give at least two reasons.