What is the meaning of it all... or, what exactly does __sc_crypt return?

[josh-m-sharpe]

Hello there!

I'm trying to import scrypted passwords into google firebase. In order to do that, I need to pass them things defined here.

It looks like I need:

• password hash
• password salt
• hash-key
• rounds
• mem-cost

It looks to me like some or all of that info might be what SCrypt::Password spits out, but I'm having a bit of a hard time following this

I'm guessing this token is just joined by '$' and each of these pieces is meaningful...? If so, could someone please clarify what each piece is and if they fit into those things I need above?

[1] pry(main)> output = SCrypt::Password.create("asdf")
=> "400$8$38$3cc27c1975484d03$27fb227b9c876a0aa3d14b2212ee400e9f38a3b631b65919c44df6140a8a3cf0"
[2] pry(main)> output.split('$')
=> ["400", "8", "38", "3cc27c1975484d03", "27fb227b9c876a0aa3d14b2212ee400e9f38a3b631b65919c44df6140a8a3cf0"]

Thank you!

[josh-m-sharpe]

Further elaborated on here: http://stackoverflow.com/questions/43598545/how-to-import-passwords-generated-by-rubys-scrypt-into-firebase