OpenSSL

OpenSSL Version

encryption for:
- data
- communication
- traffic
- secret
plain --> cipher

Types of encryption
Symmetric encryption ==> Same key for encrypt/decrypt
Asymmetric encryption ==> different key for encrypt/decrypt

$ whereis openssl
$ which openssl

$ openssl version
$ openssl help
$ openssl help list
$ openssl list -help

$ openssl list -digest-commands

$ openssl list -chiper-commands

$ openssl list -commands
$ openssl list -public-key-algorithms

$ openssl rsautl