Using Digital Signatures

Office 2003 uses Microsoft Authenticode technology to help you protect your Office documents and macros by using a digital signature , or digital ID. A digital ID protects the sender's identity. It contains a private key, which stays on the sender's computer, and a digital certificate that contains a public key. The certificate is sent with digitally signed documents and it contains the key to decipher messages from the sender. Before you can add a digital signature to a document or workbook, you need to get a certificate. You can get a digital signature and more information on security options from microsoft at: http://office.microsoft.com.

Set Digital Signature

Click the Tools menu, and then click Options.

Click the Security tab.

Click Digital Signatures.

If necessary, click Add, select a certificate, and then click OK.

Click the certification you want to attach to your digital signature.

Click OK.

Click OK.

Set a Macro Security Option

Click the Tools menu, and then click Options.

Click the Security tab.

Click Macro Security.

Click the security option you want.

Click OK.

Click OK.