EASY


For most of application you can use the basic interface where information and data are transferred "as is" in the simplest possible way.

HMAC

HASH BASED MESSAGE AUTHENTICATION CODE


For increased security we provide a stateless authentication mode where the device password is used as a secret cryptographic key and the message validity is limited to 60 seconds.

Instead of providing the password, the URI will include a key made of 2 fields.


  • The first field is the UNIX timestamp
    number of seconds since 00:00:00 UTC on January 1, 1970 (according to Wikipedia)


  • The second is a signature
    HMAC-SHA256 hash of timestamp string using the password as a secret key


HMAC information on Wikipedia