Double Ratchet Algorithm: Difference between revisions

Revision as of 21:30, 1 September 2020

Revision as of 17:30, 28 September 2020

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[[File:Ratchet example.gif|alt=A gif of a ratchet moving showing that the mechanism can only move in one direction|thumb|125px|A mechanical ratchet]]

The term "ratchet" in cryptography is used similarly to a mechanical ratchet. In the mechanical sense, a ratchet only allows advancement in one direction; a cryptographic ratchet only allows keys to be generated from the previous key. However, unlikeUnlike a mechanical ratchet, however, each state is unique.

== Origin ==