January 2018
Intermediate to advanced
524 pages
13h 33m
English
Content preview from Internet of Things for Architects
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Network stack – Transport Layer Security
Transport Layer Security (TLS) has been covered in many areas of this book, from TLS and DTLS for MQTT and CoAP to network security over the WAN and PAN security. Each has had some form of reliance on TLS. TLS also brings together all the cryptographic protocols and technologies we mention. This section briefly covers the TLS1.2 technology and process.
Originally SSL (Secure Sockets Layer), it was introduced in the 1990s but was replaced by TLS in 1999. TLS 1.2 is the current specification in RFC5246 as of 2008. TLS 1.2 includes an SHA-256 hash generator to replace SHA-1 and to strengthen its security profile.
In TLS encryption, the process is as follows:
- The client opens a connection to a TLS-capable ...
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