Random Number Generation in the Secure OS

4.3.1

Test the performance of generating random numbers in the secure OS.

See Test Networking.

1. The TrustZone kit has been burnt into the server and the TrustZone license has been activated.
2. The REE patch has been loaded to the server. The CA and TA can be loaded and can communicate with each other properly.

1. Log in to the REE OS and load the TrustZone REE patch tzdriver. (See Expected Result 1.)

   insmod tzdriver

   /usr/bin/teecd &

2. Write the CA and TA and make the following requirements on the CA and TA code. (See Expected Result 2.)

   Calculate the duration from the time when the command for generating a random number is delivered to the time when the command output is returned. Record the durations incurred by 1 KB, 2 KB, 4 KB, 16 KB, 256 KB, 512 KB, and 1 MB. (Random numbers do not need to be returned to the REE.)

1. The REE patch is loaded and no error information is displayed.
2. The performance data can be obtained.