Trust Service Providers

Certified organizations that verify identities and safeguard digital transactions.

A Trust Service Provider (TSP) ensures security, authenticity, and legal validity in digital transactions.

Key functions:

  • Issue/manage digital certificates

  • Provide timestamping services

  • Validate signatures for authenticity and integrity

  • Secure storage of signed documents

  • Detect tampering after signing

Regional regulation examples:

  • India – licensed under the IT Act

  • EU – regulated by eIDAS

Prominent TSPs: eMudhra, DigiCert, GlobalSign, Entrust.

Example: When signing via emSigner, a TSP like eMudhra verifies your identity, issues a digital certificate, and timestamps your signature.

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