Digital signing

In order to make it easier to add signing support to web applications, we recommend using a JavaScript library with a unified API that allows different plugins to be used in a similar way (independently of the operating system and the browser).

In order to verify signatures given with test certificates in the DigiDoc4 client, you need to configure the test certificates manually. Otherwise the signature validation check will return the status “Unknown”.

An overview of DigiDoc container formats supported by different versions and components of the ID-software can be found on the DigiDoc container format life cycle page. There is also a sample file for each format.

Nowadays, nearly all file formats are suitable for digital signing. There are no restrictions on digitally signed documents exchanged between information systems, but if a signed document is sent to an end-user, the most common and standard file formats should be preferred.

In Estonia, the BDOC format and its two subformats are used for digital signatures, which can be recognised by .bdoc and .asice file extensions.