Lacuna Software

Lacuna Software specializes in public-key-infrastructure components that bridge the gap between web applications and Brazil’s national PKI ecosystem; its flagship Web PKI library is a lightweight browser extension and JavaScript API that exposes local certificate stores to JavaScript code, letting end-users sign PDFs, XML documents or JSON payloads with their A1, A3 or HSM-based ICP-Brasil credentials without ever leaving the page. Typical deployments are online accounting portals that demand legally valid bookkeeping signatures, government e-Procurement platforms that require supplier bids to be digitally sealed, and bank portals where corporate treasurers approve wire transfers with qualified certificates. Because the component parses CAdES, XAdES and PAdES signatures, validates certificate revocation lists in real time and renders a visual representation of the signatory’s name and CPF/CNPJ, developers can embed compliant workflows into Angular, React or vanilla HTML pages with a few lines of code, eliminating the need for desktop agents or Java applets that modern browsers no longer support. The library is also used in document-management SaaS, remote-board voting systems and insurance-claims portals, all scenarios where non-repudiation and regulatory audit trails are mandatory. Lacuna Software’s Web PKI is offered free of charge on get.nero.com, where it is delivered through the winget repository, always installs the newest build, and can be pulled in bulk alongside other trusted Windows packages.