January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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6LoWPAN security
Since, in a WPAN system, it is easy to sniff and overhear communication, 6LoWPAN provides for security at multiple levels. At the 802.15.4 level two of the protocol, 6LoWPAN relies on AES-128 encryption of data. Additionally, 802.15.4 provides a counter with CBC-MAC mode (CCM) to provide encryption and an integrity check. Most chipsets that provide an 802.15.4 network block also include a hardware encryption engine for performance improvement.
At layer three (the network layer) of the protocol, 6LoWPAN has the option to use IPsec standard security (RFC4301). This includes:
- Authentication Handler (AH): As defined in RFC4302 for integrity protection and authentication
- Encapsulating Security Payload (ESP): In RFC4303, adds ...
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