Question: What is the minimum security requirement for a Secured Packet containing Applet Management Commands during normal execution in a (U)SIM application toolkit?
Option 1: Confidentiality using Encryption only
Option 2: Authentication using DAP (Data Authentication Pattern) fields
Option 3: Integrity using CC (Ciphering with Compression) or DS (Digital Signatures)
Option 4: No security mechanism is mandatory for Applet Management Commands
Explanation: To ensure the integrity of Applet Management Commands within a Secured Packet, the minimum security applied must guarantee that the data cannot be modified without detection. Integrity using CC (Ciphering with Compression) or DS (Digital Signatures) achieves this by allowing the recipient to verify the data's origin and detect any unauthorized changes, which is crucial for secure applet management in (U)SIM application toolkits.