// ChangePassword changes the password of this user.
func (u *User) ChangePassword(oldPass, newPass string) error {
var key []byte
var err error
if key, err = u.verifyPassword(oldPass); err != nil {
return err
}
u.Key, err = aes.EncryptB(key, kdf.KDF([]byte(newPass), kdf.DefaultSalt, kdf.DefaultReps))
return err
}
// InitWithKey initializes this user instance with a user name and password
// so that the user uses key as its key.
func (u *User) InitWithKey(name, password string, key *Key) (err error) {
u.Owner = key.Id
u.Name = name
if u.Key, err = aes.EncryptB(
key.Value,
kdf.KDF(
[]byte(password),
kdf.DefaultSalt,
kdf.DefaultReps)); err != nil {
return
}
u.Checksum = base64.StdEncoding.EncodeToString(
kdf.NewHMAC(key.Value, kdf.DefaultReps))
return
}