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TKEY record

From Wikipedia, the free encyclopedia

TKEY (transaction key) is a record type of the Domain Name System (DNS). TKEY resource records (RRs) can be used in a number of different modes to establish shared keys between a DNS resolver and name server.

TKEY record format

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TKEY resource record fields
Field Description Length (octets)
NAME Key name, which must be unique on client and server Variable
TYPE TKEY (249) 2
CLASS Ignored, should be ANY (255) 2
TTL Ignored, should be 0 4
RDLENGTH Length of RDATA field 2
RDATA Variable-length structure containing the timestamp, algorithm, mode, hash data and error Variable, as per RDLENGTH

Mode field values

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See also

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References

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  • RFC 2930, "Secret Key Establishment for DNS (TKEY RR)", D. Eastlake, September 2000