Practical Internet of Things Security - Second Edition

New privacy approaches for credentials

Another worthy example of the need to rethink privacy for the IoT comes from the connected vehicle market. Just as with the wearables discussed previously, the ability to track someone's vehicle persistently is a cause for concern. 

A problem arises, however, when we look at the need to sign all messages transmitted by a connected vehicle digitally. Adding digital signatures to messages such as Basic Safety Messages (BSMs) or infrastructure-generated messages (for example, traffic signal controller Signal Phase and Timing (SPaT) messages) is essential to ensure public safety and the performance of our surface transportation systems. Messages must be integrity-protected and verified to originate from ...