Problem solve Get help with specific problems with your technologies, process and projects.

Clarification on digital signatures

What is the difference between a digital signature and an e-signature? How does a digital signature relate to Public Key Infrastructure (PKI)? What algorithm does a digital signature use: Is it cryptography or another algorithm?

No difference. E-signature is the catchy marketing name the government put on digital signatures.

PKI provides the means of managing digital certificates. Digital certificates contain public keys for individuals or entities.

A digital signature uses a digital signature algorithm such as RSA or SHA1. Yes, it is a cryptographic algorithm.

For more information on this topic, visit these other searchSecurity resources:
Best Web Links: Digital Signatures
Executive Security Briefing: It's a matter of trust: Digital certificates and e-signatures
Ask the Expert: What is a digital signature?

This was last published in April 2001

Dig Deeper on PKI and digital certificates

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.