Цифровой ключ (Digital Key) is a free iPhone application developed by TEKHNOKAD OOO. It offers a reliable and secure way to create and manage digital signatures, also known as electronic signatures. With a digital key, users can sign electronic documents and transactions, ensuring the authenticity and integrity of the information exchanged.

The application provides a comprehensive set of features for creating and using digital signatures. Users can generate their own digital keys, which are encrypted files containing information about the signer and the permissions associated with the signature. These digital keys have the same legal validity as traditional paper-based signatures.

One of the main use cases for digital signatures is in real estate transactions. Цифровой ключ supports the use of qualified electronic signatures (УКЭП) for electronic registration of real estate deals. This ensures the highest level of security and compliance with legal requirements.

Цифровой ключ is a powerful tool for individuals and businesses who frequently work with electronic documents and transactions. It provides a convenient and secure way to sign and verify the authenticity of digital information.