Configuration

To configure the SDK properly for both transfer target and source, WPTConfig instance is needed.

Configuration items

• serviceUUID - UUID used for the Bluetooth service
• characteristicUUID - UUID used for the Bluetooth connection
• coder - will provide encryption and decryption for the transfer

Coder

Currently, only one coder is available WPTAESCoder. To configure this coder, you need to provide two byte arrays:

• salt - salt that will be mixed into the cipher. No length limitation.
• iv - IV for the cipher. Needs to be 16 bytes long. Smaller IV will produce an error and longer will be truncated.

Example configuration

let config = WPTConfig(
    serviceUUID: UUID(uuidString: "21f8190c-e4bc-11ed-b5ea-0242ac120001")!, 
    characteristicUUID: UUID(uuidString: "21f8190c-e4bc-11ed-b5ea-0242ac120002")!, 
    coder: WPTAESCoder(
        salt: "MyApplicationDemoSalt!".data(using: .utf8)!, // static data
        iv: Data(base64Encoded: "7x9ZEvEVf4IqlBxuYmzKhw==")! // 16 bytes encoded in Base64
    )
)

Read next

• Transfer Source