gboudreau

Generating Authy passwords on other authenticators

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*update: TBC, but this new might affect how easy it is to use this technique past August 2024: Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August

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This gist, based in part on a gist by Brian Hartvigsen, allows you to export from Authy your TOTP tokens you have stored there.
Those can be "standard" 6-digits / 30 secs tokens, or Authy's own version, the 7-digits / 10 secs tokens.

stbuehler

#!/usr/bin/ruby

# REQUIRES:
# * rooted android, as otherwise you can't read the applications private data
# * to display the qr code "qrencode" (http://fukuchi.org/works/qrencode/)
#   and "display" from ImageMagick

# This script "decrypts" the token from the internal state of the
# Battle.net Mobile Authenticator on android application, converting
# it into an "otpauth" url (https://code.google.com/p/google-authenticator/wiki/KeyUriFormat)

lrvick

// convert 0..255 R,G,B values to binary string
RGBToBin = function(r,g,b){
    var bin = r << 16 | g << 8 | b;
    return (function(h){
        return new Array(25-h.length).join("0")+h
    })(bin.toString(2))
}

// convert 0..255 R,G,B values to a hexidecimal color string
RGBToHex = function(r,g,b){