String Encryption in Linux [closed]

Question

Could any please tell me how I can take in a 16 character string and generate a 16 character encrypted string ( In human readable format ) using command line tools.

I have explored options like openssl but I am not able to control the length of the output.

Could anyone please advise?

Answer 1

There is a description of ROT13 in Linux here. I have not tested it:

$alias rot13="tr '[A-Za-z]' '[N-ZA-Mn-za-m]'"

That may meet your needs, though it is not at all secure.