Encryption

[ChuckAmsden]

On the nRF51422 Chip, please describe the 128-bit AES/ECB/CCM/AAR co-processor used in these chips.  Is it symmetric or asymmetric?

[Simonr]

Hi

The AES ECB, AES CCM and AAR all use symmetric encryption. Please refer to the product specification for more in-depth description.

Best regards,

Simon

[ChuckAmsden]

What is the primary purpose of the encryption used in this part?

Regards,
Chuck

[Simonr]

Maybe I misunderstood your question, but this encryption is used in link securtiy, for any protocol that is running in the chip. 

[ChuckAmsden]

So it's to keep the data confidential?

Is the Encryption activated?  Can a user change it?

Regards,
Chuck

[Simonr]

Yes, it keeps the data encrypted to prevent unauthorized access.

The encryption is enabled/disabled depending on your code, and can be configured in a multitude of ways by the developer. Please refer to our infocenter for specifics on the matter. 

Best regards,

Simon