A in such a way specified case of canary (in English "canary trap" mentioned) is a method for finding information leakages. Here different versions are given and examined to that by sensitive documents to the group suspecting, which version is passed on. The differences between the individual versions are hardly to be usually recognized minimum and for humans. For example commas can be inserted or omitted, naturally without this changes the meaning of the text noticeably.

The designation originates from the novel the hour of the Patrioten from Tom Clancy. The hero, Jack Ryan, describes the technology, which he plans for marking the sources of original of the documents.

See also

• Water-mark
• Steganographie

Related links

• Fingerprinting (EN.)

Articles in category "Case of canary"

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