Generate random password with openssl

README.md

For the pedants (which I can totally be at times):

Base64 uses a reduced character set, so we're generating a less computationally complex string for something like hashcat to chew on, than say, the full ascii character set. Base64 also typically ends with = or == making the pattern even more predictable.

It's still better than hex, and orders of magnitude better than your initials + your grandma's birthday.

rp.zsh

# Randpass - generate random password
# Usage: rp [character length]

rp () {

  isNumber='^[0-9]+$'

  length=32 # default length of 32 chars
  if [[ -n "$1" && ! "$1" =~ $isNumber ]]; then
    echo "$1 is not a number value. Try again with an actual number, say, 20 =D" >&2
    kill -INT $$
  fi

  if [[ -n "$1" ]]; then
    length="$1"
  fi

  openssl rand -base64 "$length"
}