KwickClips Computer Science · 42 sec · free
Which is faster?
Short answer. Symmetric encryption.
Which key decrypts in asymmetric encryption?
The private key of the owner.
Two kinds
| Type | Keys | Example |
|---|---|---|
| Symmetric | one shared | AES |
| Asymmetric | public+private | RSA |
Remember
| Symmetric: same key, faster |
| Asymmetric: key pair, safer sharing |
Encryption uses keys. But how many? There are two kinds. Symmetric uses one shared key, like AES. Asymmetric uses a public key and a private key, like RSA. Remember. Symmetric is one key and faster. Asymmetric shares keys safely.
This clip is from the full lesson: Protecting Systems: Firewalls, Anti-virus, Encryption and Updates — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 11 Information Technology (802), Cambridge IGCSE Grade 9 Computer Science (0478), Cambridge IGCSE Grade 9 Computer Science (0478), Cambridge IGCSE Grade 10 Computer Science (0478)
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