Practical Industrial Internet of Things Security

Resource-constrained endpoint protection

Low-end and remotely positioned field devices might be resource-constrained, with respect to the following:

• Processing capacity
• Non-volatile and runtime memory
• Power availability
• Connection bandwidth

However, these constraints do not lower their security necessities in terms of secure bootstrapping, secure firmware updates, identity, secured access, and connectivity. To ensure adequate trustworthiness in these resource-constrained scenarios, the following are some security considerations (IIC-IISF):

1. Crypto accelerators and coprocessors, such as TPM, are separate hardware modules dedicated to security and cryptographic processing. They have a small footprint, consisting of a single integrated circuit ...