Internet of Things for Architects

Public Key Infrastructure 

Asymmetric cryptography (public key) is a mainstay of internet commerce and communication. It has routinely been used for SSL and TLS connection on the web. A typical use is public key encryption, where data in transit is encrypted by anyone holding the public key but can only be decrypted by the holder of the private key. Another use is digital signatures, where a blob of data is signed with a sender's private key and the receiving party can verify the authenticity if they hold the public key. 

To assist with providing public keys with confidence, a process known as Public Key Infrastructure (PKI) is used. To guarantee authenticity, trusted third parties known as Certificate Authorities (CA) manage roles and policies ...