Contents
What are the TLS and SSL in IoT?
One important step that IoT businesses can take is to install publicly trusted SSL/TLS certificates for authentication and encryption on their devices. The SSL/TLS protocol uses asymmetric encryption to secure data shared between two computers on the Internet.
What is TLS in IoT?
IoT Hub uses Transport Layer Security (TLS) to secure connections from IoT devices and services. Three versions of the TLS protocol are currently supported, namely versions 1.0, 1.1, and 1.2. TLS 1.0 and 1.1 are considered legacy and are planned for deprecation.
How do you perform a TLS test?
To test that your SSL/TLS configuration works correctly, you can use self-signed certificates. Self-signed certificates are useful in test scenarios so that you can ensure SSL/TLS connectivity without paying a Certificate Authority (CA) for a certificate. See Creating test certificates for details.
Is there a TLS protocol for the IoT?
Currently, there are multiple lightweight implementations of the TLS protocol available to meet the constraints of low-powered IoT devices.
Is the Internet of things using SSL / TLS?
One common concern about integrating Internet PKI with the IoT is the idea that SSL/TLS is too computationally expensive for small, low-powered devices to handle, and for some older legacy devices this may be true.
How is SSL / TLS used to authenticate clients?
SSL/TLS can also be used to authenticate clients. For example, a company may wish to allow only certain employees to access a web-based application, and, through issuing client certificates to those employees, can use the certificates as credentials for access.
When does SSL outweigh the TLS overhead?
A 2011 study of the energy consumed by mobile devices using TLS indicates that while SSL/TLS overhead is significant for very small transactions of less than 10KB, “with transactions larger than 500KB, the energy required to transmit the actual data clearly outranks the TLS energy overhead.”