Architecture

# Encryption

Encryption is one of the key parts of the infrastructure. There are three options available:

**Custom encryption**Integrators have the option to develop their own specific encryption implementations.

**AES**Natively AES-256-GCM (i.e. Advanced Encryption Standard) is used for the encryption algorithm. The secret key can be randomly generated or imported.

**AES - ECDH**(i.e. Elliptic-Curve Diffie-Hellman)Natively AES-256-GCM is used for the encryption algorithm. The secret key is produced with ECDH secret key exchange. The sender needs the receiver Encryptor extension public key to be recorded on the blockchain. Encryptor extension is used to calculate the shared secret key.