QCE Digital Solutions Unit 4: Symmetric and asymmetric encryption
Students learn how symmetric block ciphers (DES, Triple DES, AES, Blowfish, Twofish) and asymmetric encryption (RSA) work and when to choose each.
One content description from the full QCE Digital Solutions Unit 4 — Digital Methods for Exchanging Data journey. All 17 modules below are in that journey too, with the same content — add just these to a class, or the whole strand.
Modules (17)
1
Symmetric encryption
2
Encrypting and decrypting with one shared key
3
Why a symmetric key must be shared
4
The risk of sharing a symmetric key
5
Block ciphers and key size
6
DES
7
Triple DES
8
AES
9
Blowfish
10
Twofish
11
Asymmetric encryption
12
Encrypting with the recipient's public key
13
Decrypting with the private key
14
RSA
15
Comparing symmetric and asymmetric keys
16
Choosing symmetric or asymmetric encryption for a scenario
17
Base64 is encoding, not encryption
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