Trusted Shell and Secure Attention Key

Trusted Shell and Secure Attention Key (SAK) perform similarly to the Trusted Computing Base (TCB), except that if Trusted Execution is enabled on the system instead of TCB, the Trusted Shell executes files belonging only to the Trusted Signature Database.

For more information about TCB and SAK, see Trusted Computing Base, Using the Secure Attention Key, and Configuring the Secure Attention Key.