// NewSetupClientSession returns a new setup client session
func NewSetupClientSession(username string, pin string) *SetupClientSession {
rp, _ := srp.NewSRP(SRPGroup, sha512.New, KeyDerivativeFuncRFC2945(sha512.New, []byte(username)))
client := rp.NewClientSession([]byte(username), []byte(pin))
hap := SetupClientSession{
session: client,
}
return &hap
}
// NewSetupServerSession return a new setup server session.
func NewSetupServerSession(username, pin string) (*SetupServerSession, error) {
var err error
pairName := []byte("Pair-Setup")
srp, err := srp.NewSRP(SRPGroup, sha512.New, KeyDerivativeFuncRFC2945(sha512.New, []byte(pairName)))
if err == nil {
srp.SaltLength = 16
salt, v, err := srp.ComputeVerifier([]byte(pin))
if err == nil {
session := srp.NewServerSession([]byte(pairName), salt, v)
pairing := SetupServerSession{
session: session,
Salt: salt,
PublicKey: session.GetB(),
Username: []byte(username),
}
return &pairing, nil
}
}
return nil, err
}