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| Knox's group suffered a setback when the Italians introduced a new rotor with different wiring. A serious cryptographic weakness of Enigma was that whatever the settings it always changed the letter entered on the keyboard to a different one, i.e. a letter was never enciphered as itself. When there was not much traffic, the Italians would send dummy messages, perhaps to thwart [[signal analysis]] efforts. One such message was received following the introduction of the new wheel and Mavis Lever observed that it contained all the letters of the alphabet bar '''L'''. She guessed that a lazy operator had been told to send a dummy message, but had merely repeatedly pressed the bottom right letter on the Enigma keyboard '''L'''. Realising the potential importance of this, she went to [[Hut 6]] where German air force and army enigma messages were being decrypted, to seek the help of a what Knox referred to as "one of the clever Cambridge mathematicians".{{sfn|Batey|2011|pp=87-88}} That person was [[Keith Batey]] and together they solved the problem. They married in November 1942. | Knox's group suffered a setback when the Italians introduced a new rotor with different wiring. A serious cryptographic weakness of Enigma was that whatever the settings it always changed the letter entered on the keyboard to a different one, i.e. a letter was never enciphered as itself. When there was not much traffic, the Italians would send dummy messages, perhaps to thwart [[signal analysis]] efforts. One such message was received following the introduction of the new wheel and Mavis Lever observed that it contained all the letters of the alphabet bar '''L'''. She guessed that a lazy operator had been told to send a dummy message, but had merely repeatedly pressed the bottom right letter on the Enigma keyboard '''L'''. Realising the potential importance of this, she went to [[Hut 6]] where German air force and army enigma messages were being decrypted, to seek the help of a what Knox referred to as "one of the clever Cambridge mathematicians".{{sfn|Batey|2011|pp=87-88}} That person was [[Keith Batey]] and together they solved the problem. They married in November 1942. |
| The [[Allies of WWII|Allied]] success in the naval [[Battle of Cape Matapan]] in March 1941 was an early example of the contribution of the work at Bletchley Park to the war effort. The more messages read, the more cribs became available. One of these was SUPERMARINA, meaning Naval High Command, which was used in a message from Rome to Crete that included "Today 25 March 1941 is X-3". This was, unusually, forwarded directly to the Commander-in-Chief of the Mediterranean Fleet, [[Andrew Cunningham, 1st Viscount Cunningham of Hyndhope|Admiral Sir Andrew Cunningham]] in [[Alexandria]], which led three days later, to the Italian fleet being ambushed by Cunningham, loosing two Cruisers and two Destroyers and retiring to port for the rest if the war.<ref>{{cite book|author=Friedrich Ludwig Bauer|title=Decrypted Secrets: Methods and Maxims of Cryptology|url=https://books.google.com/books?id=s9y9p2jP6pQC&pg=PA432|access-date=25 July 2013|date=January 2002|publisher=Springer|isbn=978-3-540-42674-5|page=432}}</ref><ref>{{cite book|author=Hugh Sebag-Montefiore|title=Enigma|url=https://books.google.com/books?id=yLnEK-kBcQEC&pg=PT254|access-date=25 July 2013|date=21 July 2011|publisher=Orion|isbn=978-1-78022-123-6|page=254}}</ref><ref>{{cite book|author=Alex Frame|title=Flying Boats: My Father's War in the Mediterranean|url=https://books.google.com/books?id=0kWcncvokjUC&pg=PA183|access-date=25 July 2013|year=2007|publisher=Victoria University Press|isbn=978-0-86473-562-1|pages=183–4 note 91}}</ref> | The [[Allies of WWII|Allied]] success in the naval [[Battle of Cape Matapan]] in March 1941 was an early example of the contribution of the work at Bletchley Park to the war effort. The more messages read, the more cribs became available. One of these cribs was SUPERMARINA, meaning Naval High Command, which was used in a message from Rome to Crete that included "Today 25 March 1941 is the day minus three". Mavis Lever and her colleagues, including [[Margaret Rock]], worked for three days and nights and discovered that the Italians were intending to attack a Royal Navy convoy transporting supplies from Cairo to Greece.<ref name="theheroinecollective.com"/><ref name=tele-obit/> The messages they deciphered provided a detailed plan of the Italian assault,<ref name="tandfonline.com">{{cite journal|first1=David H.|last1=Hamer|title=Review of From Bletchley with Love by Mavis Batey|journal=Cryptologia|pages=274–275|volume=33|issue=3|doi=10.1080/01611190902788825|year=2009|s2cid=40424009}}</ref> Unusually, this information was forwarded directly to the Commander-in-Chief of the Mediterranean Fleet, [[Andrew Cunningham, 1st Viscount Cunningham of Hyndhope|Admiral Sir Andrew Cunningham]] in [[Alexandria]], which led to the Italian fleet being ambushed by Cunningham, loosing two Cruisers and two Destroyers and retiring to port for the rest if the war.<ref>{{cite book|author=Friedrich Ludwig Bauer|title=Decrypted Secrets: Methods and Maxims of Cryptology|url=https://books.google.com/books?id=s9y9p2jP6pQC&pg=PA432|access-date=25 July 2013|date=January 2002|publisher=Springer|isbn=978-3-540-42674-5|page=432}}</ref><ref>{{cite book|author=Hugh Sebag-Montefiore|title=Enigma|url=https://books.google.com/books?id=yLnEK-kBcQEC&pg=PT254|access-date=25 July 2013|date=21 July 2011|publisher=Orion|isbn=978-1-78022-123-6|page=254}}</ref><ref>{{cite book|author=Alex Frame|title=Flying Boats: My Father's War in the Mediterranean|url=https://books.google.com/books?id=0kWcncvokjUC&pg=PA183|access-date=25 July 2013|year=2007|publisher=Victoria University Press|isbn=978-0-86473-562-1|pages=183–4 note 91}}</ref> When next in England, Admiral Cunningham visited Bletchley Park to thank Knox, Batey, and her fellow code-breakers for making his victory possible.<ref>{{cite book| last = Smith| first = Michael| author-link = | title = Station X: The Codebreakers of Bletchley Park | publisher = Pan Books| date = 1998| pages = 77-78| isbn = 978-0-330-41929-1 }}</ref> |
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| According to ''The Daily Telegraph'', she became so familiar with the styles of individual enemy operators that she could determine that two of them had a girlfriend called Rosa. Batey had developed a successful technique that could be used elsewhere.<ref name=tom>{{cite news|url=https://www.telegraph.co.uk/history...ley-Park.html|url-status=dead|archive-date=11 October 2014|title=Could you have been a codebreaker at Bletchley Park?|author=Tom Chivers|work=Daily Telegraph|date=12 October 2014|access-date=12 October 2014}}</ref> | According to ''The Daily Telegraph'', she became so familiar with the styles of individual enemy operators that she could determine that two of them had a girlfriend called Rosa. Batey had developed a successful technique that could be used elsewhere.<ref name=tom>{{cite news|url=https://www.telegraph.co.uk/history...ley-Park.html|url-status=dead|archive-date=11 October 2014|title=Could you have been a codebreaker at Bletchley Park?|author=Tom Chivers|work=Daily Telegraph|date=12 October 2014|access-date=12 October 2014}}</ref> |
| Although Batey was just 19, she started working on the [[Italian Naval Enigma machine]], and by late March 1941 she effectively broke into their framework, deciphering a message which said "Today's the day minus three". She and her colleagues worked for three days and nights and discovered that the Italians were intending to assault a Royal Navy convoy transporting supplies from Cairo to Greece.<ref name="theheroinecollective.com"/><ref name=tele-obit/> The messages they deciphered provided a detailed plan of the Italian assault,<ref name="tandfonline.com">{{cite journal|first1=David H.|last1=Hamer|title=Review of From Bletchley with Love by Mavis Batey|journal=Cryptologia|pages=274–275|volume=33|issue=3|doi=10.1080/01611190902788825|year=2009|s2cid=40424009}}</ref> which led to the destruction by an Allied force of much of the Italian naval force off of Cape Matapan, on the coast of Greece. The leader of the Matapan attack, [[Andrew Cunningham, 1st Viscount Cunningham of Hyndhope|Admiral Andrew Cunningham]], later visited Bletchley Park to thank Knox, Batey, and her fellow code-breakers for making his victory possible.<ref>Michael Smith. The Secrets of Station X: How the Bletchley Park codebreakers helped win the war. Biteback Publishing 2011. p. 110. Kindle Edition.</ref> | Although Batey was just 19, she started working on the [[Italian Naval Enigma machine]], and by late March 1941 she effectively broke into their framework, deciphering a message which said "Today's the day minus three". She and her colleagues worked for three days and nights and discovered that the Italians were intending to attack a Royal Navy convoy transporting supplies from Cairo to Greece.<ref name="theheroinecollective.com"/><ref name=tele-obit/> The messages they deciphered provided a detailed plan of the Italian assault,<ref name="tandfonline.com">{{cite journal|first1=David H.|last1=Hamer|title=Review of From Bletchley with Love by Mavis Batey|journal=Cryptologia|pages=274–275|volume=33|issue=3|doi=10.1080/01611190902788825|year=2009|s2cid=40424009}}</ref> which led to the destruction by an Allied force of much of the Italian naval force off of Cape Matapan, on the coast of Greece. The leader of the Matapan attack, [[Andrew Cunningham, 1st Viscount Cunningham of Hyndhope|Admiral Andrew Cunningham]], later visited Bletchley Park to thank Knox, Batey, and her fellow code-breakers for making his victory possible.<ref>Michael Smith. The Secrets of Station X: How the Bletchley Park codebreakers helped win the war. Biteback Publishing 2011. p. 110. Kindle Edition.</ref> |
| Apart from being a talented code-breaker (he had broken the [[Zimmermann Telegram]] in World War I), Knox was a noted classics scholar, and wrote a poem to celebrate the Allied success at Matapan. He included a stanza dedicated to Batey and the key role she had played in the victory: | Apart from being a talented code-breaker (he had broken the [[Zimmermann Telegram]] in World War I), Knox was a noted classics scholar, and wrote a poem to celebrate the Allied success at Matapan. He included a stanza dedicated to Batey and the key role she had played in the victory: |
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| While at Bletchley Park she met [[Keith Batey]], a mathematician and fellow codebreaker, whom she married in 1942.<ref name="PG"/><ref>{{cite book|author1=Francis H. Hinsley|author2=Alan Stripp|title=Codebreakers: The Inside Story of Bletchley Park|url=https://books.google.com/books?id=j1MC2d2LPAcC&pg=PA129|access-date=25 July 2013|year=2001|publisher=Oxford University Press|isbn=978-0-19-280132-6|page=129}}</ref> | While at Bletchley Park she met [[Keith Batey]], a mathematician and fellow codebreaker, whom she married in 1942.<ref name="PG"/><ref>{{cite book|author1=Francis H. Hinsley|author2=Alan Stripp|title=Codebreakers: The Inside Story of Bletchley Park|url=https://books.google.com/books?id=j1MC2d2LPAcC&pg=PA129|access-date=25 July 2013|year=2001|publisher=Oxford University Press|isbn=978-0-19-280132-6|page=129}}</ref> |
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| ==Publications== | ==Publications== |
Okumaya devam et...