WIDCOMM DBT-120 Guia de Instalação descarregar pdf (Página 52)

Security

Authentication

Authentication is used to verify identity; it requires a passkey or link key from

the remote device. When a remote device attempts access, a visual and/or

audio warning notifies the local operator.

If the notification is ignored, access is denied after a preset timeout.

When devices are “paired,” those devices automatically exchange a link key

and Authentication is carried out without operator intervention.

Authorization

Authorization is Yes-or-No security that requires operator intervention to avoid

having the connection time out and fail.

Authorization is limited to:

• Yes, you may connect (click the balloon to proceed)

• No, you may not connect (ignore the balloon prompt and the

connection will fail).

Bluetooth Device Identity

Every Bluetooth device has a unique Bluetooth Device Address (BDA)

assigned to it during the manufacturing process. This address cannot be

changed by the end-user.

A device’s BDA is usually displayed in hexadecimal format;

00:D0:B7:03:2E:9F is a valid BDA.

Each Bluetooth device also has an operator-configurable, user-friendly name

to help distinguish it from other devices. The user-friendly name may be up to

99 alphanumeric characters in length and may contain spaces. My Personal

Computer is a valid user-friendly name.

Encryption

Encrypting data translates it into an unreadable format using a secret key or

password. Decrypting the data requires the same key or password that was

used to encrypt it.

Link Key

A unique, internally generated, access code based on a passkey, the

Bluetooth Device Address and an internally generated random number. Link

keys are generated automatically when devices Pair.

After a link key is generated, manual entry of the passkey is not required.

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WIDCOMM DBT-120 Guia de Instalação Página 52