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QSign is a system designed for online message signing and verification (Sign and Verify).
Its primary purpose is to ensure that messages are signed by authorized entities and to confirm that the data has not been altered during transmission — a critical requirement in systems handling high-value financial transactions.

All cryptographic operations required for the signing and verification processes are performed using HSM (Hardware Security Module) servers.
Messages are signed using the sender’s private key, while recipients validate the signature using the corresponding public key that has been securely shared with them.

The system supports High-Availability configurations for HSM servers, ensuring full redundancy and maximum service availability.
QSign also includes the QSign-CM (Certificate Management) component, which manages and imports participant certificates used by the HSM servers during cryptographic operations.