Description: Key validation is the process of verifying that a cryptographic key is valid and can be trusted. This process is fundamental in public key infrastructure (PKI), where key pairs are used: a public key and a private key. The public key is distributed openly, while the private key is kept secret. Validation ensures that the public key effectively corresponds to the private key and has not been compromised. This process involves verifying digital certificates issued by certificate authorities (CAs), which act as trusted third parties. Key validation not only guarantees the authenticity of keys but also protects the integrity of digital communications and transactions, allowing users to trust that they are interacting with the correct entity. Without proper validation, cryptographic systems can be vulnerable to attacks, such as ‘man-in-the-middle’, where an attacker intercepts and potentially alters communication between two parties. Therefore, key validation is an essential component for maintaining security and trust in the digital ecosystem.
