АПБ. Управление ключами

Application "APB. Key management" allows you to manage electronic signature keys and conduct electronic document flow.
Viewing electronic documents.
There are two ways to open a document in the application:
• click the “Open document” button
• use an intent filter from third-party applications (messengers, email agents, other applications).
Signing electronic documents.
The document is signed using an electronic signature public key certificate, which was previously downloaded to the mobile device.