Framework: HITRUST

Cryptography under the i1 program focuses on ensuring that sensitive data remains confidential and tamper-proof during storage and transmission. Candidates must understand that HITRUST expects cryptographic controls to follow industry-accepted standards such as AES-256 for data at rest and TLS 1.2 or higher for data in transit. The organization’s policy should define key management, encryption algorithms, and lifecycle processes for key rotation and disposal. Evidence must show consistent encryption practices aligned with data classification and regulatory requirements such as HIPAA’s Security Rule.

In practical application, encryption extends beyond files and databases to include backups, removable media, and secure communications. For exam readiness, candidates should be able to differentiate between encryption, hashing, and tokenization—each serving distinct purposes. HITRUST assessors will look for proof of encryption enablement, documented key custodianship, and monitoring for cryptographic failures. i1 emphasizes not only the presence of encryption but its verifiable enforcement, ensuring that organizations protect PHI and other regulated data from unauthorized disclosure or manipulation.
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