Public Key Infrastructure PKI has a rich history, spanning back to the 1970s. Despite experiencing widespread adoption in the 1990s, it seemed to vanish from the spotlight. However, PKI has quietly remained a crucial element of our daily lives, seamlessly integrated into numerous aspects without our explicit knowledge. The internet, for instance, relies heavily on PKI, safeguarding vital activities like secure online banking transactions. Additionally, large networks with intricate security frameworks owe their integrity to the underlying foundation of PKI. pUnfortunately, due to its apparent disappearance in the mid-1990s, PKI has become somewhat of a taboo in the cyber world. Common misconceptions have arisen, perpetuating the belief that PKI is reserved for a select few or that it is an excessively complex and challenging system to implement. This book aims to dispel these myths and demystify PKI, guiding readers through its intricacies, dissecting its components, and providing valu