3. The qualified electronic signature.
As with the advanced signature, the reliability of the process is also the starting point for the qualified signature. The difference is that with a qualified electronic signature a qualified certificate is used to identify the signatory. In addition, the qualified certificate is issued on a reliable means, whereby the signatory can associate his identity and the document using a private key instead of a general key. There are special bodies that issue those certificates, the so-called trust service providers.