SES (simple electronic signature)

The basic signature level under eIDAS: data in electronic form attached to other electronic data and used by the signer to sign — for example a typed name under an email, a scanned image of a signature, or a click on an accept button. An SES is legally valid for the vast majority of agreements in Denmark, where freedom of form applies. Its evidential weight, however, depends on how well you can document who signed and that the document was not altered. That is why an SES is greatly strengthened by an audit trail and a cryptographic hash of the document.