Page 349 - The Secret War in the Italian front in WWI (1915-1918)
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ANNEX A
Italian Service Ciphers
servIce sIPher wITh grouPs of dIgITs
The table in figure 8.2 of the text is presented here with the addition of a sub-row.
As shown in the text, the auxiliary table usage produces the addition of a digit before the group of
two digit resulting from the main table. The initial digit ‘0’ indicates the shift in the main table to
the first ‘sub-row’ containing one hundred terms commonly used in the military field and placed
in the cells below the letters. The word ‘Major’ for example, is encrypted as ‘061’ and the words
‘telegraphic operators’ as ‘090’.
Since the table was rebuilt from the terms interpreted by Austrian cryptanalysts as of 21 December
1915, some of the words in the cells are missing.
One hundred telegraphic words, numbers, and other syllables indicated by the prefix ‘1’ of the
auxiliary table are included in a third sub-row not shown in the table above.
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