Construct · 2 fields · 3 citations

Where does replay collide?

One name. Different field. Different construct. One map.

● jingle · one word, two constructs Nearest construct by meaning·not indexed
replay2 CONSTRUCTSReplay attackDENNING & SACCO · 1981Hippocampal replayWILSON & McNAUGHTON · 1994

Spokes are fields; dashed arcs are shared lineage. Tap a field for its definition, unit, and measures.

2026

Drag to watch the word get claimed. Each field appears at the publication date of the earliest source cited for it. Tap a year to see which.

Network security

Resend a captured message to impersonate a party

In network security, a replay attack is capturing a valid message, such as an authentication token, and sending it again later so the system mistakes the copy for a fresh, legitimate request. Denning and Sacco's 1981 Timestamps in key distribution protocols showed how a recorded key-distribution message could be replayed to force reuse of a compromised key, and proposed timestamps as a defence; Syverson's 1994 A taxonomy of replay attacks later organised the many forms the attack can take. The referent is an attack on message freshness, countered by nonces, timestamps, or sequence numbers, and it is unrelated to the brain's replay of neural activity beyond the shared meaning of something being played again.[1][2]

Unit
Whether a previously valid message can be re-accepted as fresh
Recovery means
Not applicable
Measured by
Demonstrated by protocol analysis showing an old message is accepted, and prevented by freshness checks (nonces, timestamps, counters)

Neuroscience

The brain re-runs recent activity patterns offline

In neuroscience, replay is the re-activation during rest or sleep of the same hippocampal firing sequences that occurred during a waking experience, replayed in compressed form and thought to support memory consolidation. Wilson and McNaughton's 1994 Reactivation of hippocampal ensemble memories during sleep recorded place-cell ensembles and found that cells firing together while a rat explored tended to fire together again in subsequent sleep. The referent is an internally generated rehearsal of neural activity patterns, measured from ensemble recordings, and it has nothing to do with resending a captured network message beyond the common word for repeating a sequence.[3]

Unit
The reoccurrence of waking firing sequences during later rest or sleep
Recovery means
Not applicable
Measured by
Detected by comparing the order and timing of ensemble firing during behaviour with activity during subsequent rest or sleep

Next

Run it through the Collider, or take the citations with you.

See how replay sits against neighbouring constructs in the Collider, or export every reference on this page in one click.

Open in ColliderExport BibTeXReport this collision

Nearby collisions

attack4 fields · 10 citationsjingle · one word, four constructsauthentication2 fields · 5 citationsjingle · one word, two constructsbeing3 fields · 3 citationsjingle · one word, three constructs

References

  1. Denning, D. E., & Sacco, G. M. (1981). Timestamps in key distribution protocols. Communications of the ACM, 24(8), 533–536. https://doi.org/10.1145/358722.358740
  2. Syverson, P. (1994). A taxonomy of replay attacks. In Proceedings of the Computer Security Foundations Workshop VII (pp. 187–191). IEEE. https://doi.org/10.1109/CSFW.1994.315935
  3. Wilson, M. A., & McNaughton, B. L. (1994). Reactivation of hippocampal ensemble memories during sleep. Science, 265(5172), 676–679. https://doi.org/10.1126/science.8036517

Cited on this page?

Confirm your construct, or correct us.

If your work is cited behind one of these entries, you know better than we do whether we captured the meaning right. Confirm it, suggest an edit, or dispute it, and your name goes on the entry as an author who has checked it, linked to your ORCID.

Claim your construct