how to create a digital signature in openoffice

This typically involves a more complicated process involving private and public encryption keys. Digital signatures are a type of electronic signature with encrypted information that helps verify the authenticity of messages and documents. This free tool helps you create a free downloadable electronic signature, which is the same as an online signature. What's the difference between an online signature, electronic signature, and digital signature? Everything that happens related to your signature is done in your browser and can't be seen (or accessed) by anyone else. No, for privacy reasons we do not keep any record of your signature data or your signature image on our servers. You can double-click the icon to view the certificate.Do you keep a record of my signature on your system? Click OK to add the public key to the saved file.Ī signed document shows an icon in the status bar.

You see again the Digital Signatures dialog, where you can add more certificates if you want.

In the Select Certificate dialog, select your certificate and click OK.Click Add to add a public key to the document. After saving, you see the Digital Signatures dialog.If you have not saved the document since the last change, a message box appears.For a more detailed description of how to get and manage a certificate, and signature validation, see “Using Digital Signatures' in the OOo Help. On Solaris and Linux systems, files that are supplied by Thunderbird, Mozilla or Firefox are used. On Windows operating systems, the Windows features of validating a signature are used. Whenever someone changes something in the document, this change breaks the digital signature. You can compare the public key with the public key that is published on the web site of the certificate authority. In addition, the program can show you the public key information from the certificate. If both are the same, the program will signal that you see the original, unchanged document. When someone later opens the document on any computer with a recent version of, the program will compute the checksum again and compare it with the stored checksum. The checksum and your public key are stored together with the document. When you apply a digital signature to a document, a kind of checksum is computed from the document's content plus your personal key. You can get a certificate from a certification authority, which may be a private company or a governmental institution. A personal key is stored on your computer as a combination of a private key, which must be kept secret, and a public key, which you add to your documents when you sign them. To sign a document digitally, you need a personal key, the certificate.

How to create a digital signature in openoffice