09 câu hỏi kiểm tra các kiến thức cơ bản về bảo mật STM32

1. What is the link register in Cortex M ?

It contains the address of current executed instruction

It contains the return address of function call

If is used to link 2 registers

2. What is SHA256 ?

A hash algorithm

An encryption algorithm

A signature algorithm

3. What is the meaning of RDP ?

ReaDout Protection

Real Dual Protection

Reinforced Dual Protection

4. To encrypt a big datafile, it’s better to use :

Asymmetric cryptography

Symmetric cryptography

Symmetric or Asymmetric, it’s just a different security scheme

5. What is the role of the firewall on STM32 ?

A hardware mechanism to create a security enclave

A software system that filters illegal memory accesses

A hardware mechanism used to protect against attack on the debug port

6. When using asymmetric cryptography, which key is used to check a signature ?

The private key

The public key

7. This information is present in a certificate :

A private key encrypted with its signature

An encrypted public key

A public key with its signature

8. Can a Non-Secure interrupt occur during execution of Secure service in TrustZone environment ?

Yes

9. What is a secure boot purpose ?

A mechanism that ensures boot code never crash

A mechanism that ensures application code executed is genuine

A mechanism that ensures your IOT device is registered to a server