Session and utilities

The openssl command

Cryptography Swiss army knife: hashes, random numbers, certificates and passwords.

Syntax

openssl <subcomando>

Copy-ready examples

$ openssl versionVersion
$ openssl rand -hex 88 random bytes
$ openssl passwd secretoPassword hash

You can try them in the browser terminal: it does not touch your computer.

Typical mistakes

  • dgst -sha256 file computes the hash; useful to verify integrity.

Related commands

sha256sumgpg

FAQ

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