SES (Standard / simple electronic signature).

An SES signature is described as the standard signature format. An SES signature covers a signature that you "draw" on your computer screen, a scanned image of a handwritten signature or an "approve" button, respectively.

An SES signature is most often used in connection with a proof of acceptance or approval.

SES signatures:

• OK button.
• Approve button.
• Touchscreen.

AES (Advanced Electronic Signature)

An advanced electronic signature is a type of signature that meets the requirements of Article 26 of the eIDAS Regulation, which provides a higher level of verification that better ensures the signatory's personal sensitivity and general security.

An example of an Advanced electronic signature covers i.a. over the Danish NemID signature, which is based on OCES certificates which guarantee that all transactions between authority and citizens take place sufficiently securely.

Through Article 26, the eIDAS Regulation imposes the following requirements on AES:

• Must be uniquely associated with the signer.
• Must be able to identify the signer.
• Created using data for creating signatures that the signatory can use under his own control.

The link to the signed data in such a way that any subsequent change of the data can be detected.

AES signatures:

• Danish NemID.
• MitID *
• Swedish BankID.
• Norwegian BankID.
• FTN.
• SITHS.
• Freja.

QES (Qualified Electronic Signature)

QES is a stricter / extended form of AES, which thus meets a number of additional requirements proposed by the eIDAS Regulation and thus has a special legal status in EU member states. The eIDAS Regulation also demonstrates that a qualified electronic signature is equivalent to a handwritten signature.

To be approved as a qualified electronic signature, the electronic signing provider must be approved and recognized with a certificate issued by ETL (EU Trusted List).

QES signatures:

• Vidua
  
  
  Signatures marked with a *, can potentially become a QES.