Serious Cryptography
Jean-Philippe Aumasson
Learning Apache OpenWhisk
Michele Sciabarrà
CompTIA Security+ Certification Guide
Ian Neil
iOS Development with Swift
Craig Grummitt
SSH - The Secure Shell (2nd Edition)
Daniel J. Barrett & Richard E. Silverman & Robert G. Byrnes
RFC 4253 - The Secure Shell (SSH) Transport Layer Protocol
T. Ylonen & C. Lonvick
rfc (4253)