Question

Difficulty: HardData Protection and Storage Security Architecture

An enterprise security architect is refining the organization's data protection and storage security architecture. Match each enterprise storage security objective on the left with the primary storage control or mechanism on the right that best satisfies the requirement.

  • Preventing unauthorized access to SAN block volumes by restricting visibility to specific Host Bus Adapter (HBA) World Wide Names (WWNs) at the storage controller layer.LUN Masking and Zoning
  • Offloading cryptographic key generation, lifecycle management, and secure key storage to dedicated hardware compliant with FIPS 140-3 Level 3 requirements.Hardware Security Module (HSM)
  • Ensuring hardware-level full disk encryption that transparently encrypts data at rest directly on disk controllers without OS overhead.Self-Encrypting Drives (SED)
  • Replacing sensitive account numbers with surrogate values of identical length and character type before writing to database storage.Format-Preserving Tokenization

Answer

The correct pairings are: 1) Preventing unauthorized SAN volume access pairs with LUN Masking and Zoning. 2) Offloading key generation and lifecycle management to tamper-resistant hardware pairs with Hardware Security Module (HSM). 3) Hardware-level disk block encryption without OS reliance pairs with Self-Encrypting Drives (SED). 4) Replacing account numbers with format-matched surrogate tokens pairs with Format-Preserving Tokenization.
Each requirement directly aligns with a foundational storage security architectural control: LUN Masking/Zoning isolates SAN storage access; HSMs secure key management infrastructure; SEDs deliver hardware-based encryption at rest; and Format-Preserving Tokenization protects structured sensitive data while maintaining system schema constraints.

Step-by-Step Solution

1
Analyze SAN block volume visibility control requirements
Identify LUN Masking and SAN Fabric Zoning as the mechanisms configured at the storage network layer to restrict volume presentation based on HBA WWN addresses.
LUN masking operates at the storage controller/target level to hide logical units from unauthorized initiator host HBAs.
2
Analyze tamper-resistant key lifecycle management requirements
Identify Hardware Security Module (HSM) as the hardware appliance designed for centralized, FIPS-certified key storage and cryptographic operations.
HSMs isolate root keys and cryptographic processing within physical tamper-evident physical boundaries.
3
Analyze controller-level transparent storage encryption at rest
Identify Self-Encrypting Drives (SED) as self-contained storage media equipped with onboard ASIC encryption controllers.
SEDs implement full disk encryption transparently at hardware speeds without processor overhead from the host operating system.
4
Analyze schema-preserving surrogate data replacement requirements
Identify Format-Preserving Tokenization as the database/application control that maps original sensitive data to tokens of identical structure.
Tokenization removes real sensitive values from the storage backend while maintaining length and field data type formatting.

Key Concept

Storage Architecture Security Controls & Encryption Mechanisms
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