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CEH - Cryptography - Encryption Algorithms
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1/5
A security consultant is helping a healthcare provider implement encryption for patient data stored across multiple databases. The organization needs an encryption solution that allows database administrators to search through encrypted records efficiently for specific patient information while maintaining HIPAA compliance. The organization has limited computational resources on their database servers and needs a solution that balances security with performance. Which encryption approach would be most appropriate for this scenario?
a.
Full homomorphic encryption that allows complete computational operations on the encrypted patient data while maintaining its encrypted state throughout all processes
b.
Searchable encryption that implements deterministic encryption for indexed fields while using probabilistic encryption for sensitive medical data
c.
Format-preserving encryption that maintains the original structure of patient identifiers while transforming the data into ciphertext that preserves database schema integrity
d.
A hybrid approach using AES-256 in GCM mode for all patient data combined with key rotation policies that enforce monthly cryptographic key changes across all database instances
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