Trust services are specialized digital services designed to ensure the authenticity, integrity, confidentiality, and legal validity of electronic documents and transactions. These services include electronic signatures, digital certificates, time-stamping, and electronic seals, which help verify the identity of parties involved and protect data from tampering. Trust services are essential for secure online interactions, compliance with legal and regulatory requirements, and fostering confidence in digital communications. They are widely used in e-commerce, government, finance, and other sectors where secure and verifiable digital transactions are critical.