tag:blogger.com,1999:blog-3335175720102608134.post7440751967389465771..comments2024-01-18T00:59:52.237-08:00Comments on Christos military and intelligence corner: United States cryptologic security failures in WWIIChristos T.http://www.blogger.com/profile/04246906263926130737noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-3335175720102608134.post-72910812544241831852014-03-17T05:54:18.020-07:002014-03-17T05:54:18.020-07:00Well you’re in luck! From the finding aid I see th...Well you’re in luck! From the finding aid I see that the following file is available from<br />NARA- RG 457 – box 792- NR 2228 CBLL24 6144A 19450927 ‘PERFORMANCE SPEECH EQUIPMENT AN/GSQ-1 AN/GSQ-1A SIGJIP-SIGMAR’Christos T.https://www.blogger.com/profile/04246906263926130737noreply@blogger.comtag:blogger.com,1999:blog-3335175720102608134.post-39708955856867933292014-03-17T05:45:43.958-07:002014-03-17T05:45:43.958-07:00The report ‘The Achievements of the Signal Securit...The report ‘The Achievements of the Signal Security Agency (SSA)’ is available from site governmentattic.org and in page 45 talks about the device AN/GSQ-1 – SIGJIP. Apparently it did not satisfy the requirements of the SSA but it was used in the field since nothing better was available. It says that by July 1944 several units had been sent to the European, Med and South Pacific theaters. Christos T.https://www.blogger.com/profile/04246906263926130737noreply@blogger.comtag:blogger.com,1999:blog-3335175720102608134.post-66674306209946321602014-03-17T03:48:53.101-07:002014-03-17T03:48:53.101-07:00Does anyone know anything further about this AN/GS...Does anyone know anything further about this AN/GSQ-1 ? How widely was it used by the USAF during the later part of WW2 ?<br /><br />I'm presuming it was a voice inversion scrambler with a limited number of changing inversion points determined by the key. These simple voice encryption systems are still in use today mostly being used by fishing boats.Anonymoushttps://www.blogger.com/profile/05338695075014039738noreply@blogger.com