DNS Based Software Licensing

Cryptographic Security with DNSSEC, Supported on all Operating Systems and Programming Languages

Verifying software licenses traditionally involves a complex cryptographic signature verification step. Developers typically send a request to a license server, receive the license data, and then implement cryptographic methods to validate it, adding significant complexity.

LicenseDNS offers a simplified approach using DNSSEC. By sending a straightforward DNS TXT query to any recursive DNS server, developers receive a cryptographically verified response, eliminating the need for complex in-house cryptographic implementations.

The core innovation of LicenseDNS resides within its specialized DNS server architecture. Unlike conventional DNS servers primarily tasked with domain name-to-IP address translation, the LicenseDNS License Server exhibits dynamic behavior, generating DNS TXT records on an as-needed basis. Upon receiving a valid license-related query, the server establishes a real-time connection to a secure backend database that serves as the authoritative repository for all license information. Based on the precise parameters embedded within the DNS query and the corresponding records retrieved from the database, the server constructs the appropriate TXT response, seamlessly embedding critical licensing details such as the current activation state, granular feature entitlements, and any applicable expiration timelines.