Regulation of Cryptographic Controls

HITRUST CSF v11 06.f requires you to run cryptography like a regulated capability: every cryptographic control (encryption, key management, signing, TLS) must comply with applicable laws, regulations, contracts, and any export/import restrictions tied to cryptographic technology ¹. Operationalize it by creating a crypto compliance register, approving standard crypto patterns, and retaining evidence that your implementations and third parties follow them.

Key takeaways:

• Treat cryptography as a governed program, not a library choice ¹.
• Document which laws/contract terms apply to your crypto and map them to approved implementations ¹.
• Maintain proof: architecture standards, key management procedures, inventories, and third-party terms that address crypto restrictions ¹.

“Regulation of Cryptographic Controls” is easy to misunderstand because the requirement is not asking for “strong encryption” in the abstract. It is asking for compliance: you must know which legal, contractual, and cross-border restrictions apply to cryptographic technology in your environment, and you must show that your implementations follow those constraints ¹.

For a CCO or GRC lead, the fastest path is to translate this into governance artifacts and repeatable engineering patterns. Auditors will look for two things: (1) you have identified the rules that apply to your cryptography, including export/import controls where relevant, and (2) your crypto implementations and third parties demonstrably follow an approved approach that was reviewed for those rules ¹.

This page gives you a requirement-level playbook: what the requirement means in plain English, who it applies to, how to implement it step-by-step, what evidence to retain, what auditors ask, and where teams fail in practice. If you manage third-party risk, treat crypto-related service providers (cloud, HSM/KMS, managed security, device vendors) as in-scope because their crypto can create compliance exposure for you.

Regulatory text

HITRUST CSF v11 06.f states: “Cryptographic controls shall be used in compliance with all relevant agreements, laws, and regulations. Organizations shall ensure that cryptographic implementations comply with applicable legal restrictions and export/import controls governing cryptographic technology.” ¹

Operator translation: what you must do

1. Identify applicability: Determine which laws, regulations, and contractual terms constrain your use of cryptography, including any export/import control considerations ¹.
2. Implement governed cryptography: Ensure your encryption, signing, TLS, and key management designs follow documented requirements that address those constraints ¹.
3. Prove it continuously: Keep current inventories and implementation evidence that tie your real crypto deployments back to the approved standards and third-party obligations ¹.

Plain-English interpretation

This requirement is about legal and contractual compliance of cryptography, not just security. You are expected to show:

• You know where cryptography is used in your systems and third parties.
• You have rules for what cryptography is permitted (and where restrictions apply).
• Engineering and procurement follow those rules.
• Exceptions are rare, approved, and documented with compensating controls.

If your organization operates in multiple countries, sells products internationally, hosts workloads across regions, or distributes software that includes cryptographic functions, export/import controls become a real operational topic. Even if you do not ship “crypto products,” you still need a defensible process to assess whether restrictions apply and to record that assessment.

Who it applies to

Entity scope: All organizations in scope for HITRUST assessments ¹.

Operational scope (where this shows up):

• Security architecture: encryption at rest, encryption in transit, tokenization, digital signatures, certificate management, secrets management.
• Platform/IT operations: key management services, HSMs, KMS policies, certificate lifecycle processes, backup encryption.
• Software engineering: crypto libraries, TLS configurations, mobile/desktop app crypto, embedded crypto in products.
• Procurement and third-party risk: cloud providers, managed service providers, payment platforms, EHR/health SaaS, device manufacturers, and any third party that stores or transmits your sensitive data using their cryptography.
• Legal/compliance: contract terms requiring specific encryption, breach notification and security obligations that indirectly dictate cryptographic controls, and country/regional restrictions.

What you actually need to do (step-by-step)

1) Build a “crypto compliance register”

Create a short, controlled document (or GRC record set) that captures:

• In-scope cryptographic controls: encryption at rest, in transit, key management, signing, certificates.
• Applicable obligations: “relevant agreements, laws, and regulations” plus export/import considerations, expressed as organization-specific requirements ¹.
• Decision owners: security architect (technical), legal/compliance (interpretation), procurement/TPRM (third party terms), system owners (implementation).

Practical tip: keep it readable. Auditors accept concise registers if they are complete and kept current.

2) Define approved cryptographic patterns (your “standard builds”)

Turn the register into standards that engineering can follow without legal interpretation:

• Approved encryption approaches for data at rest by platform (database, object storage, endpoint).
• Approved TLS baselines (protocol versions, cipher suite policy by risk tier).
• Key management standards (KMS/HSM usage, key ownership, rotation triggers, separation of duties).
• Certificate issuance and renewal process.
• Approved crypto libraries/modules for application development.

Your goal is to reduce ad hoc decisions. If engineers can self-serve an approved pattern, you reduce exception volume and audit noise.

3) Inventory where cryptography exists (and where it doesn’t)

Auditors will test completeness. Build an inventory that answers:

• Which systems store regulated/sensitive data and what encryption is used.
• Where keys live (KMS/HSM/provider-managed vs customer-managed).
• Which third parties encrypt data and under what terms.

Minimum viable approach: start with your highest-risk systems and highest-volume data flows, then expand until coverage is credible for your scope.

4) Add a legal/compliance gate to crypto changes

Implement a lightweight review trigger for changes that could create restrictions exposure:

• New country/region hosting.
• Distributing software or devices to new markets.
• Introducing new cryptographic modules, HSMs, or key custody models.
• Adding a third party that performs encryption/signing on your behalf.

This is not a CAB-heavy process. It can be a checklist in your architecture review or procurement workflow with a clear “legal review required?” decision.

5) Contract and third-party controls

Update templates and due diligence so third parties do not become the weak link:

• Contract language requiring the third party to comply with applicable laws/regulations affecting cryptography and to notify you of material crypto changes that impact compliance (aligned to the requirement’s “relevant agreements” focus) ¹.
• Due diligence questions on: key custody, encryption scope, cryptographic module provenance, and cross-border data handling relevant to crypto restrictions.
• Evidence intake: architecture summaries, key management descriptions, and confirmation that export/import constraints were considered where relevant.

Daydream can help here by standardizing third-party crypto evidence requests and tracking renewals and exceptions alongside your TPRM workflow, so you can show auditors a consistent intake and review trail without hunting across tickets and email.

6) Manage exceptions with discipline

Define what qualifies as an exception (example: legacy system cannot support approved TLS baseline) and require:

• Documented rationale.
• Compensating controls.
• Time-bounded remediation plan.
• Explicit risk acceptance by an accountable owner.

Auditors will often tolerate a small set of well-managed exceptions. They will challenge undocumented “temporary” deviations.

Required evidence and artifacts to retain

Keep evidence that ties requirement → standard → implementation → monitoring:

• Crypto compliance register mapping obligations to internal standards ¹.
• Cryptographic standards (encryption at rest/in transit, key management, certificate management).
• System inventory showing encryption status and key custody model.
• Key management procedures (access control, key generation, storage, rotation triggers, revocation, backup/restore).
• Certificate lifecycle records (issuance approvals, renewal logs, revocation events).
• Architecture/security review records showing crypto pattern selection and any legal/compliance review.
• Exception register with approvals and remediation plans.
• Third-party due diligence artifacts and contract clauses addressing cryptographic compliance obligations ¹.

Common exam/audit questions and hangups

Expect these lines of inquiry:

• “Show me how you know your cryptographic controls comply with relevant laws and contracts.” ¹
• “Which laws/regulations did you evaluate for crypto export/import controls, and who signed off?” ¹
• “Where are keys stored, who can access them, and how do you enforce separation of duties?”
• “Do third parties perform encryption or key management for you? Show the contract terms and review results.” ¹
• “How do you prevent teams from deploying non-standard crypto configurations?”

Hangup to plan for: teams can show strong encryption technically but cannot show the compliance decision trail. This control is graded on governance and evidence as much as configuration.

Frequent implementation mistakes (and how to avoid them)

1. Mistake: treating “compliance with laws” as a generic statement.
   Fix: write down the applicability analysis and make it reviewable; even a short memo plus a register is better than a slogan ¹.

2. Mistake: no inventory of cryptography usage.
   Fix: start with crown-jewel systems and third parties, then expand; auditors accept iterative maturity if the scope is defensible.

3. Mistake: third-party crypto is ignored.
   Fix: add crypto questions and contract clauses to intake; require notification of material crypto changes.

4. Mistake: exceptions live in engineering backlogs only.
   Fix: create a compliance-visible exception register with approvals and compensating controls.

5. Mistake: key management is split across teams with no single owner.
   Fix: name a key management control owner and standardize KMS/HSM patterns.

Enforcement context and risk implications

No public enforcement cases were provided in the source catalog for this requirement, so you should treat enforcement risk as indirect: failures commonly surface during audits, customer security reviews, incident response, or cross-border expansion diligence. The practical risk is that noncompliant cryptography can trigger contract breaches, blocked deployments in certain regions, forced re-architecture, or findings that delay HITRUST certification outcomes ¹.

Practical 30/60/90-day execution plan

First 30 days (stabilize and document)

• Assign owners for crypto governance, legal review, and third-party intake.
• Draft the crypto compliance register and get legal/compliance sign-off on the obligations list ¹.
• Publish minimum cryptographic standards (approved patterns) for at-rest and in-transit encryption plus key custody models.
• Start an exception register and pull in known legacy issues.

By 60 days (implement gates and inventory)

• Build an initial cryptography inventory for in-scope systems and key third parties.
• Add a crypto compliance checklist to architecture reviews and procurement intake.
• Update third-party due diligence questionnaires to capture key custody, encryption scope, and cross-border handling.
• Begin collecting durable artifacts (review records, approvals, system evidence).

By 90 days (prove repeatability)

• Expand inventory coverage across the environment in scope for assessment.
• Run an internal audit-style walkthrough: pick systems and show end-to-end evidence (standard → implementation → monitoring → exceptions).
• Close high-risk exceptions or document compensating controls and remediation plans.
• Operationalize ongoing monitoring: periodic reviews of crypto standards, key management access, and third-party change notifications.

Frequently Asked Questions

Do we need to document export/import controls even if we only use standard cloud encryption?

You need a documented determination of applicability, because the requirement explicitly calls out export/import controls ¹. If you conclude they are not applicable, record who made that call and why.

What’s the minimum evidence an auditor will accept for this control?

A clear crypto compliance register, published crypto standards, and sampled proof that real systems and third parties follow those standards usually form the core package ¹. Add an exception register if anything deviates.

How does this requirement affect third-party risk management?

If a third party encrypts your data, manages keys, or terminates TLS on your behalf, their cryptographic controls become part of your compliance story ¹. Contract terms and due diligence should address crypto changes, key custody, and compliance with applicable restrictions.

We have multiple KMS tools across teams. Is that automatically noncompliant?

Multiple tools can work if you have consistent standards, defined ownership, and evidence that each implementation meets your requirements ¹. Auditors will focus on governance, access control, and proof of adherence.

What should we do if a legacy system can’t meet the approved TLS or encryption standard?

Treat it as a managed exception with compensating controls and documented risk acceptance plus a remediation plan ¹. Avoid “temporary” exceptions without an owner and review cadence.

Can Daydream help with this requirement without becoming another system of record?

Yes. Daydream fits well as the workflow layer for third-party crypto evidence collection, exception tracking, and renewal reminders tied to your TPRM process, while your technical source-of-truth stays in engineering systems ¹.

Footnotes

1. HITRUST CSF v11 Control Reference