Information Security study notes 2 ---- encryption algorithm

A symmetric encryption algorithm

of the

3des

idea

aes

II. Asymmetric encryption algorithm

diffie-hellman (interactive key)

rsa encryption algorithm (public-key data encryption standard)

ECC (elliptic encryption algorithm)

rabin (prime test algorithm)

III. Cryptography concept

 Four basic idea of ​​encryption:

Shift: aqcd moved into two ascii csef

Replacement: aqcd become dcqa