SecureSign

SecureSign is an Android app for signing PDF documents with compatible hardware-backed Digital Signature Certificates (DSCs). Connect an approved USB token, review its certificate, choose a PDF, and approve one signing operation with your PIN. SecureSign verifies the certificate, signature, and saved PDF before reporting success. Key features • Read and display certificate details from a connected token • Sign PDF documents with a detached CMS signature over the PDF's exact ByteRange • Verify the signed PDF after it is saved • Show diagnostics for token, certificate, and provider compatibility • Use an in-app browser to sign documents directly on supported web and enterprise portals • Support an optional managed provider route for compatible closed-provider workflows Security and scope The private key stays on the hardware token. SecureSign does not export private keys. USB detection alone is not treated as proof of signing capability: a signing result is accepted only after certificate matching and final-artifact verification. SecureSign is a compatibility-focused prototype. Hardware support depends on the tested token, firmware, provider, Android device, and workflow. It does not claim universal token support, iOS support, CCA certification, formal PAdES/LTV conformance, or guaranteed signing time. Review the current compatibility information before relying on a workflow. SecureSign is developed by WEDEVIT PRIVATE LIMITED and is not affiliated with or endorsed by any government entity. Third-party portals are operated by their respective owners. Disclaimer: SecureSign is an independent digital signature utility developed by WeDevit Private Limited. It is not affiliated with, endorsed by, or representing any government entity.