View Source Grizzly.ZWave.Commands.S0SecuritySchemeReport (grizzly v8.6.6)

This command is used to advertised S0 support by the node being included. Upon reception, the including controller MUST immediately send the network key using the Network Key Set command.

The Supported Security Schemes field is required by spec to always be 0x00. The 0th bit MUST be set to 0 indicating support for S0 (which is implied by the use of this command, so why it's required is beyond me). The remaining bits are reserved and must be set to 0 by a sending node.