| 词条 | Kiss (cryptanalysis) |
| 释义 |
In cryptanalysis, a kiss is a pair of identical messages sent using different ciphers, one of which has been broken. The term was used at Bletchley Park during World War II. A deciphered message in the breakable system provided a "crib" (piece of known plaintext) which could then be used to read the unbroken messages. One example was where messages read in a German meteorological cipher could be used to provide cribs for reading the difficult 4-wheel Naval Enigma cipher. cribs from re-encipherments .... were known as 'kisses' in Bletchley Park parlance because the relevant signals were marked with 'xx' [1] See also
References1. ^Smith & Erskine (2001) p 69
3 : Bletchley Park|Classical cryptography|Cryptographic attacks |
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