The 1944 Bletchley Park Cryptographic Dictionary

- 34 -

ECLECTIC :

(of a code-book) Using only a selection of the available numbers, especially for its pages; gapped.

EGGS :

(in Enigma) A catalogue giving the rod-pairings for every position of an Umkehrwalze and two wheels, used when nothing at all is known about the turn-overs.

EINS : v

1. To drag the word "eins" through a German cipher message or depth: also, to seek the word "eins" in a German cipher message or in any number of messages by any feasible method (cf. eins catalogue)

2. To drag any probable crib, 'good group', or synthetic, through a cipher or reciphered code message in any language.

EINS CATALOGUE :

(especially in Enigma) Alphabetic list of all the (17576) ways in which 'eins' can be enciphered with known wheel-order ringstellung and stecker, used to set further messages on the same day, especially when new sets of bigram substitution tables for indicators require to be solved.

EMENDER :

A person engaged in emending decoded or deciphered messages.

ENCIPHER, v :

1. To substitute cipher for (plain language), either by a hand or a machine process.

2. (misused for encode)

ENCIPHER, n :

1. An enciphered message.

2. (Misused for encode i.e. the first part of a two-part code).

3. (Used for recipher).

ENCIPHER(ING) TABLE :

Any kind of figure or letter-table used in enciphering (or deciphering) e.g. a short subtractor printed on one sheet of paper, a series of groups used for enciphering indicators, a set of Playfair keys, etc.

ENCIPHER KEY :

The natural numbers (i.e. from 1 upwards) of the letters forming the plain language of a message in transposition either arranged in the order in which these letters appear in the cipher version, thus showing by what rearrangement the encipherment is effected.

| previous page | next page | index page |