Certified Cloud Security Professional (CCSP)Cloud Data SecurityMedium
An organization is deploying a new application that will store highly sensitive customer data in a cloud database. Compliance regulations require that all data, both at rest and in transit, must be encrypted. Furthermore, the organization needs to ensure that the encryption keys are managed by a dedicated, highly secure service that is FIPS 140-2 Level 3 certified. Which cloud service or technology best fulfills this specific key management requirement?
- AClient-Side Encryption with a software key store
- BTransparent Data Encryption (TDE) provided by the database
- CHardware Security Module (HSM) as a Service
- DCloud Key Management Service (KMS)
Show answer & explanationAnswer & explanation
Correct answer: C. Hardware Security Module (HSM) as a Service
Hardware Security Module (HSM) as a Service specifically provides dedicated, FIPS 140-2 Level 3 certified hardware for key generation, storage, and cryptographic operations, meeting the stringent security and compliance requirements for encryption key management.
Why the other options are wrong
- A. Client-Side Encryption with a software key store would not meet the FIPS 140-2 Level 3 hardware certification requirement for key management.
- B. Transparent Data Encryption (TDE) encrypts data at rest within the database but relies on the underlying key management, which may not meet FIPS 140-2 Level 3.
- D. Cloud KMS typically offers FIPS 140-2 Level 2, but not always Level 3, and may not provide dedicated hardware isolation to the same extent as HSM as a Service.
Hardware Security Module (HSM) as a Service
HSM as a Service is a cloud offering that provides dedicated, FIPS 140-2 certified hardware for cryptographic key generation, storage, and operations, ensuring a high level of security and regulatory compliance for key management.
- Provides dedicated, tamper-resistant hardware.
- Often FIPS 140-2 Level 3 certified.
- Keys are generated and stored within the HSM, never leaving it.
- Offers high assurance for critical cryptographic operations.
Memory trick: HSM: Hardware Security Meets Maximum Assurance.