WI: reverse Enigma

In WW2 thanks to the german confidence in the breaked Enigma, the allies had an obvious advantage over them.

What if either the english or the soviets were the ones using Enigma or machines of the like, and the german the breaker ?

How would it affect WW2 ? :)


PS : I don't think giving the US Enigma would work. being on the other side of the ocean. And giving it to the french wouldn't be really interesting, germany already won OTL in such a way only the neo nazi time traveller meddling theory can explain it. :p
 
Depends on what is transmitted and what is not and whether entire armed forces use them or just one service.

In 1939-41 period I doubt it would do much since Germans got what they could. Maybe Norway campaign kicks off soone if ermans learn british are planning on moving there as well. They may come better off if they can learn of RN movements.

BoB could besomewhat better for them if they learn of plane movements and exact number of losses.

When it comes to Soviets Germans may get better knowledge of soviet dispositions, preventing some nasty shocks when large forces appeared where and when they weren't supposed to. Of course the fiasco of 1941 would mean Soviets would assume some engines, codes and operators fell into German hands and were compromised and would switch to something else.
 
What if B-Dienst had broken the British naval code in 1935? They could send a U-boat to sink HMS Courageous. What if they broke American and Russian naval codes? Happy times.

What if OKW/chi had broken the American diplomatic code by which embassies communicated with Washington? Rommel would seem super-human.

What if the postal service could intercept phone calls between Churchill and FDR?

They'd still lose.
 
From John Terraine’s ‘The Right of the Line’

Typex is the name of the cipher machine adopted by the RAF and the Army before the outbreak of war, which gave complete security to its users. Its story contains a number of teasing ironies. We have very briefly noted that the Abyssinian crisis enabled German cryptanalysists to penetrate the Royal Navy’s codes and ciphers (by the simple process of relating coded signals to observable responses). An RN detachment bases on Aden to observe Italian preparations used the Navy’s wartime codes, and in so doing “they offered a cryptanalysist’s feast. Call-signs were easily identified; key words and phrases regularly repeated”. Yet -this is the first irony- it was the Admiralty, which had taken the original initiative towards the Typex machine which would have offered security – as far back as 1928. In 1936 Lord Mountbatten, then a Commander in the naval Air Division, urged the Admiralty to introduce the now well developed Typex machines for the use of the Fleet. Yet, as Professor Hinsley says, “the Admiralty’s earlier interest….had drained away” No one has yet explained the reason for this; Lord Mountbatten told Donald McLachlan that it was ‘sabotage’ of the experimental use attributable to the Board of Admiralty’s innate conservatism. That may be so; in any case, Ronald Lewin’s conclusion stands:

The silent service has never been more tight-lipped than about the reasons for this terrible lapse.’


That, according to Terraine, is the second irony, at the Admiralty's instigation, in 1928, two machines marketed by "Enigma Chiffriermaschinen" Aktiengesellschaft were bought for examination......there seems to have been some concern over patents leading up to the RAF's adoption of the system which was referred to as the 'RAF Enigma'[FONT=&quot].[/FONT]
 
What if B-Dienst had broken the British naval code in 1935? They could send a U-boat to sink HMS Courageous. What if they broke American and Russian naval codes? Happy times.

What if OKW/chi had broken the American diplomatic code by which embassies communicated with Washington? Rommel would seem super-human.

What if the postal service could intercept phone calls between Churchill and FDR?
Y'know, for a second there, you had me thinking you didn't know....:eek::D
 
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