CC2540 / CC2541 AES-CBC Encrypted / Decrypted for Notification

1.Notification Process

2.Set KEY and IV

3.Encrypted notification data and transmit to central

4.Central receive encrypted data

5.Central enter IV and KEY

6.Central decrypted

7.Central enter wrong IV to decrypted

8.Central enter wrong KEY to decrypted

CC2540 / CC2541 AES-CBC Encrypted / Decrypted for Write

1.Write Process

2.Set IV.

3.Set KEY.

4.Encrypted write data and transmit to peripheral.

 5.Peripheral receive encrypted data

6.Peripheral enter KEY and IV

7.Peripheral decrypted 

CC2540 / CC2541 AES-CBC Encrypted / Decrypted for Write

1.Write Process

2.Set IV.

3.Set KEY.

4.Encrypted write data and transmit to peripheral.

 5.Peripheral receive encrypted data

6.Peripheral enter KEY and IV

7.Peripheral decrypted