Junior
What is the difference between caching, encoding, and encryption?
sobes.tech AI
Answer from AI
- Caching — is temporary storage of data to speed up access to it in the future.
- Encoding (or coding) — is transforming data from one form to another for ease of storage, transmission, or processing, without hiding its content.
- Encryption — is transforming data into an unreadable format (ciphertext) using a key, to make it inaccessible to those without the corresponding decryption key.
| Function | Purpose | Reversible with a key | Example |
|---|---|---|---|
| Caching | Speeding up access | Always | Browser cache, Memcached, Redis |
| Encoding | Changing form for convenience/compatibility | Always | Base64, URL encoding, UTF-8 |
| Encryption | Protecting confidentiality | Only with a key | AES, RSA, SSL/TLS |