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The
Alphabetum Kaldeorum was meant primarily for the encipherment of diplomatic correspondence; its alphabet implies that predominantly Latin texts were coded: u and v are equated; w was to be written as double v; j is missing. For frequently arising letters the Alphabetum Kaldeorum provides several
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method should fail. "Nulla", cipher-letters with no plaintext assignment which were to be ignored, were also often added to the enciphered texts to further render frequency-analysis useless.
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origin to them; the letters of the
Alphabetum Kaldeorum are probably not, however, at all related to any writing common in India, and are actually independent creations.
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carries an inscription enciphered using the
Alphabetum Kaldeorum, which gives the names and titles of the duke.
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different versions, which were used at random so that a decipherment attempt using the classical
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accompanying the cenotaph, or symbolic tomb, of Duke
Rudolph IV in the
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It can be found in a complete version, together with other non-Latin
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A possible author of the
Alphabetum Kaldeorum is Duke
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