Means of distributing key to multiple, local crypto equipment or devices from a single fill point.
What does SPK mean?
The term Single Point Keying (SPK) refers to a COMSEC keying method in which key material is loaded or distributed from a single designated point to one or more cryptographic devices. It gives election, security, legal, or technical readers a specific label for the concept rather than a broader everyday meaning.
How is single point keying (SPK) used in cryptography or COMSEC?
In practice, Single Point Keying (SPK) is applied to the technical or security purpose captured by its definition: a COMSEC keying method in which key material is loaded or distributed from a single designated point to one or more cryptographic devices. Organizations combine that function with documented procedures, authorized access, testing, monitoring, and controls appropriate to the system.
Why does single point keying (SPK) need security controls?
Understanding Single Point Keying (SPK) matters because the concept can affect security, reliability, auditability, or trusted operation. In this glossary context, it refers to a COMSEC keying method in which key material is loaded or distributed from a single designated point to one or more cryptographic devices.
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Means of distributing key to multiple, local crypto equipment or devices from a single fill point.
Cite this term
Election Security Glossary. (2026). Single Point Keying (spk). In Election Security Glossary. Retrieved August 22, 2026, from https://electionsecurityglossary.com/glossary/single-point-keying-spk
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