Why not zoidbe... I mean, why not open ssh? It's literally a CLI that does every crypto operation with every primitive (except some PQC)?
If you mean the OpenSSL CLI, it's hard to think of a more footgun-y cryptographic tool than the one that:
* defaults to unauthenticated encryption
* buries its one authenticated mode
* requires explicit command-line nonces
* defaults to an MD5 KDF
You could probably keep going for another 10 bullets. Never use the OpenSSL CLI for anything other than TLS stuff.
If you mean the OpenSSL CLI, it's hard to think of a more footgun-y cryptographic tool than the one that:
* defaults to unauthenticated encryption
* buries its one authenticated mode
* requires explicit command-line nonces
* defaults to an MD5 KDF
You could probably keep going for another 10 bullets. Never use the OpenSSL CLI for anything other than TLS stuff.