A key used to move key from a Key Processor to a data transfer device (DTD)/secure DTD2000 system (SDS)/simple key loader (SKL). Source: CNSSI No. 4005 (COMSEC)
What does TrKEK mean?
The term Transfer Key Encryption Key (TrKEK) refers to a key-encryption key used to protect cryptographic keying material while that material is being transferred between approved devices or locations. It gives election, security, legal, or technical readers a specific label for the concept rather than a broader everyday meaning.
How is transfer key encryption key (TrKEK) used in cryptography or COMSEC?
In practice, Transfer Key Encryption Key (TrKEK) is applied to the technical or security purpose captured by its definition: a key-encryption key used to protect cryptographic keying material while that material is being transferred between approved devices or locations. Organizations combine that function with documented procedures, authorized access, testing, monitoring, and controls appropriate to the system.
Why does transfer key encryption key (TrKEK) need security controls?
Understanding Transfer Key Encryption Key (TrKEK) matters because the concept can affect security, reliability, auditability, or trusted operation. In this glossary context, it refers to a key-encryption key used to protect cryptographic keying material while that material is being transferred between approved devices or locations.
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A key used to move key from a Key Processor to a data transfer device (DTD)/secure DTD2000 system (SDS)/simple key loader (SKL). Source: CNSSI No. 4005 (COMSEC)
Cite this term
Election Security Glossary. (2026). Transfer Key Encryption Key (trkek). In Election Security Glossary. Retrieved August 22, 2026, from https://electionsecurityglossary.com/glossary/transfer-key-encryption-key-trkek
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