Definitions Edit

A digital fingerprint is

technology that embeds a unique identifier into each user's copy of software or a digital file, which can be extracted to help identify the source of an unauthorized copy.
[a] characteristic of a data item, such as a cryptographic checkvalue or the result of performing a one-way hash function on the data, that is sufficiently peculiar to the data item that it is computationally infeasible to find another data item that will possess the same characteristics.[1]

References Edit

  1. ITU, "Compendium of Approved ITU-T Security Definitizons," at 17 (Feb. 2003 ed.) (full-text).

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