Digital signature vs electronic signature
One is the family. The other is a member of it.
The two terms get used interchangeably, and knowing the difference makes every other article on the subject easier to read.
An electronic signature is the legal idea: any sound, symbol or process attached to a record and adopted by a person with the intent to sign it. A signature you draw with your finger, a name you type into a field, and a scanned image of your ink signature are all electronic signatures.
A digital signature is the technology: a specific cryptographic method built on public key infrastructure and digital certificates. It binds a signature to a document mathematically and adds three properties on top of the signature itself.
AuthenticationThe certificate ties the signing act to a verified identity or a trusted service, so the origin of the signature can be checked.
IntegrityA hash of the document is signed alongside it. Change one byte afterwards and the check fails, which is what makes a document tamper-evident.
Non-repudiationBecause only the holder of the private key could have produced the signature, it is far harder to later claim the signing never happened.
How they fit togetherEvery digital signature is an electronic signature. Not every electronic signature is a digital one. SignSecure gives you the friendly electronic signature on screen and applies the digital signature to the finished file.
Read how the law treats each one