Suggestions(5)
Exact(1)
The m letters of message are alphabets.
Similar(56)
Prior to receiving the French intelligence material, Rejewski had made a careful study of Enigma messages, particularly of the first six letters of messages intercepted on a single day.
The Tunny machine encrypted each letter of the message by adding another letter to it.
For instance, here is a Caesar cipher using a left rotation of three places, equivalent to a right shift of 23 (the shift parameter is used as the key): Plain: ABCDEFGHIJKLMNOPQRSTUVWXYZ Cipher: DEFGHIJKLMNOPQRSTUVWXYZABC When encrypting, a person looks up each letter of the message in the "plain" line and writes down the corresponding letter in the "cipher" line.
Take the first letter of your message.
Do this for each letter of your message.
Replace the first letter of your message with the numbers that correspond to its coordinates.
In other words, if the codeword was "wikihow" using this method, you would consult the "W" row and the column of the first letter in the enciphered code to determine the first letter of the message.
BY THE middle of June, if the latest pronouncements are to be believed, a draft version of the human genome in other words a list, in order, of the 3 billion or so chemical bases that form the letters of the genetic message needed to assemble and run a human being will be complete.
In his kitchen, he pointed to a pile of letters, messages of support from all over Italy, lying on the table.
The German operators of the Enigma machines were told which three rotors and which settings to use each day, but they had to choose the starting positions of the rotors and indicate their choices via the first three letters of their first messages.
More suggestions(15)
letters of credence
letters of employment
letters of intent
letters of recognition
letters of authorization
letters of cooperation
letters of agreement
letters of apology
letters of notification
letters of condolence
letters of consent
letters of credit
letters of confirmation
letters of understanding
letters of censure
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com