Digital Signature - Microsoft Word

PKI Tutorials - Herong's Tutorial Examples

∟Digital Signature - Microsoft Word

This chapter provides tutorial notes and example codes on applying digital signature with Microsoft Word. Topics include what is PKI digital signature; obtaining a commercial certificate signed by a trusted root CA; adding invisible and visible digital signatures in Word documents; viewing and validating digital signatures.

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What Is Digital Signature?

PKI Digital Signature

Protecting Word Document with Digital Signatures

Digital ID Needed to Sign Word Documents

Adding Digital Signature in Word Documents

View Digital Signatures in Word Documents

Add Visible Digital Signatures in Word Documents

Obtaining a Trial Digital ID from DocuSign

Conclusions:

A digital signature is an encrypted message digest of generated by the sender of a document.
The receiver can decrypt the digital signature and compare with the message digest of the received document to verify the integrity of the received document.
PKI digital signature includes sender's certificate for the receiver to validate sender's identity with a trusted root CA.
Microsoft Word has built-in functions that allow you to add digital signatures to Word documents.
Word removed the function to create your own digital ID (also called self-signed certificate).
Word can pick up certificates as digital ID from the "Personal" certificate on your Windows system.
You can also obtain a commercial certificate from a Microsoft partner for you add digital signatures to Word documents.
You can apply digital signatures to other Microsoft Office tools: Excel, PowerPoint, etc. in the same way as Word.