Skip to content

Instantly share code, notes, and snippets.

@chris3000
Created August 5, 2014 16:53
Show Gist options
  • Save chris3000/22a355cdb0fd2fe356de to your computer and use it in GitHub Desktop.
Save chris3000/22a355cdb0fd2fe356de to your computer and use it in GitHub Desktop.
Generates random password in easy-to-remember combinations
#!/usr/bin/ruby
#set amount of letters and numbers in passcode
num_len = 4
alpha_len = 4
#fill up alphabet array
a=[]
("a".."z").each {|v| a<<v}
#fill up number array
n=[]
("0".."9").each {|v| n<<v}
#generate passcode
code = []
if Random.new.rand >= 0.5 #letters then numbers
alpha_len.times { code << a[(Random.new.rand*a.size).to_i] }
num_len.times { code << n[(Random.new.rand*n.size).to_i] }
else #numbers then letters
num_len.times { code << n[(Random.new.rand*n.size).to_i] }
alpha_len.times { code << a[(Random.new.rand*a.size).to_i] }
end
puts code.join("")
total_codes = ((a.size**alpha_len)*(n.size**num_len)*2)
puts "total possible codes: #{total_codes}"
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment