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SC-8(1) SC · System and Communications Protection

Cryptographic Protection

LOW ✓ MODERATE ✓ HIGH
1 Overlay 2 Related Controls
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Requirements NIST SOURCE

Implement cryptographic mechanisms to [one of: prevent unauthorized disclosure of information; detect changes to information] during transmission.

Discussion (NIST Supplemental Guidance)

Encryption protects information from unauthorized disclosure and modification during transmission. Cryptographic mechanisms that protect the confidentiality and integrity of information during transmission include TLS and IPSec. Cryptographic mechanisms used to protect information integrity include cryptographic hash functions that have applications in digital signatures, checksums, and message authentication codes.

Implementation Guidance

Engineering Interpretation

Original engineering commentary written for this explorer — not NIST source text and not authoritative guidance.

No engineering interpretation has been authored for SC-8(1) yet. This section is architected to receive it — see the Requirements and Assessment sections above for the authoritative NIST source content in the meantime.

Assessment

NIST SP 800-53A REV 5.2.0

Assessment Objectives

  1. one or more of the following PARAMETER VALUES is/are selected: {prevent unauthorized disclosure of information; detect changes to information};
  2. cryptographic mechanisms are implemented to <SC-08(01)_ODP SELECTED PARAMETER VALUES> during transmission.

Examine

[SELECT FROM: System and communications protection policy; procedures addressing transmission confidentiality and integrity; system design documentation; system configuration settings and associated documentation; system audit records; system security plan; other relevant documents or records].

Interview

[SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; system developer].

Test

[SELECT FROM: Cryptographic mechanisms supporting and/or implementing transmission confidentiality and/or integrity; mechanisms supporting and/or implementing alternative physical safeguards; organizational processes for defining and implementing alternative physical safeguards].

Overlays

Showing the OT/ICS overlay for the parent control SC-8 — see the SC-8(1) entries within each baseline below.

OT/ICS Overlay SP 800-82r3

NIST SP 800-82r3 Appendix F, Table 22. Blank baseline means the control/control enhancement is not selected in that initial OT baseline.

LOW

Not applicable at this tier.

MODERATE

  • Base control: Included (matches standard baseline)
  • Included: (1)

HIGH

  • Base control: Included (matches standard baseline)
  • Included: (1)

STIGs & CCIs

No STIG checks or CCI mappings are currently loaded for SC-8(1). This section is architected to display, per product: STIG ID, Finding ID, Severity, Title, Description, Check, Fix, CCI, and NIST control mapping — but nothing is populated here until a real DISA STIG/CCI dataset is ingested.

Learn more about STIG/CCI integration →

Evidence

Potential Evidence — Derived

Categorized from the SP 800-53A "Examine"/"Test" artifact list above by keyword — not an authoritative NIST evidence list.

Policy

  • System and communications protection policy
  • system security plan

Configuration

  • system design documentation
  • system configuration settings and associated documentation

Testing

  • Cryptographic mechanisms supporting and/or implementing transmission confidentiality and/or integrity
  • mechanisms supporting and/or implementing alternative physical safeguards
  • organizational processes for defining and implementing alternative physical safeguards

Other Records

  • procedures addressing transmission confidentiality and integrity
  • system audit records
  • other relevant documents or records