In European Union, UK, Iceland, Norway and Liechtenstein, the e-signature legal basis is called EU Regulation on Electronic Identification and Trust Services for Electronic Transactions in the Internal Market (eIDAS for short). In Switzerland, it is the Federal Act on Electronic Signatures (ZertES).

YumiSign, while not officially certified, designed its systems to be compliant with both regulations, following the PAdES framework.

An internationally accepted and uniform standard, as is the case in the EU, does not exist. The requirements of electronic signatures in eIDAS are very high – many countries have therefore based their standards on eIDAS or enacted less stringent legislation. Companies using e-signatures in countries outside the EU/EEA should familiarise themselves with national legislation.