Digital Signature Brin. Every user who signs documents must obtain a valid cryptographic certificate. A sign dialog box appears, so you need to type the purpose for signing the document.
To sign a document, drag and drop it into the area above or click on the link to choose your file. Web a digital signature is a specific type of signature that is backed by a digital certificate, providing proof of your identity. Web a digital signature is a mathematical scheme for verifying the authenticity of digital messages or documents.
