What is Ppk?

PPK could refer to several things, depending on the context. Without more information, it's difficult to be precise. It could refer to: * **Public-key cryptography (PKC) or Public-Key Infrastructure (PKI):** These are fundamental cryptographic technologies for secure communication and authentication. They involve using key pairs (public and private keys) for encryption, decryption, and digital signatures. * **.PPK file extension:** This file extension is commonly associated with PuTTY Private Key files. PuTTY is a free SSH and Telnet client for Windows and Unix. PPK files store the private key used for authentication when connecting to a server via SSH. * **Pre-Production Kit:** In some industrial or manufacturing contexts, PPK might refer to a set of materials, tools, or instructions used for a trial run or pilot production phase before full-scale manufacturing. To provide a more accurate explanation, please provide more context about where you encountered the term 'PPK'.