Imports golang.org/x/crypto/nacl/box github.com/GeertJohan/yubigo github.com/pquerna/otp golang.org/x/crypto/scrypt github.com/crewjam/errset Standard library imports encoding/pem encoding/base32 bufio crypto/subtle bytes crypto/hmac crypto/rand encoding/base64 encoding/binary encoding/json errors fmt io io/ioutil math net/http os os/exec path/filepath regexp strconv strings time