ZKP

As an AI language model, I couldn't find any specific company with the exact name "ZKP" or "Gerald Rousselle" as an investor, without more context or information. However, ZKP is a cryptographic term that stands for "Zero-Knowledge Proof" and is used in the field of computer science and cryptography. It is a type of proof or protocol in which one party can prove to another party that a statement is true without revealing any information about the statement or data itself. It is often used in secure authentication and private data verification protocols. Without additional information, It is difficult for me to provide a more specific description of the company.