About: Leo Rosen   Sponge Permalink

An Entity of Type : owl:Thing, within Data Space : 134.155.108.49:8890 associated with source dataset(s)

Leo Rosen was a human living on Babylon 5 in 2261.

AttributesValues
rdfs:label
  • Leo Rosen
rdfs:comment
  • Leo Rosen was a human living on Babylon 5 in 2261.
  • Leo Rosen was a U.S. cryptanalyst who worked with Frank Rowlett at Signals Intelligence Service (S.I.S.) before the start of World War II on Japanese ciphers. Rowlett found a method to read the messages enciphered on the Japanese PURPLE machine. Rosen deduced correctly the mechanism of the cipher machine, even though the mechanism used by PURPLE was substantially different from other machines (such as the wired rotor and pinwheel machines).
sameAs
dcterms:subject
dbkwik:babylon5/pr...iPageUsesTemplate
dbkwik:military/pr...iPageUsesTemplate
Relatives
  • Alex Rosen
  • Sheila Morris Rosen
Affiliation
Actor
Name
  • Leo Rosen
dbkwik:babylon-5/p...iPageUsesTemplate
Birthdate
  • 2196(xsd:integer)
Gender
  • Male
Race
abstract
  • Leo Rosen was a human living on Babylon 5 in 2261.
  • Leo Rosen was a U.S. cryptanalyst who worked with Frank Rowlett at Signals Intelligence Service (S.I.S.) before the start of World War II on Japanese ciphers. Rowlett found a method to read the messages enciphered on the Japanese PURPLE machine. Rosen deduced correctly the mechanism of the cipher machine, even though the mechanism used by PURPLE was substantially different from other machines (such as the wired rotor and pinwheel machines). Rosen built a replica of PURPLE which turned out (when a machine was found years later) to use exactly the same telephone selector switches in common use at that time in the U.S. This machine was used to decode the Japanese diplomatic messages, sometimes before the Japanese ambassadors had themselves. Rosen also contributed his engineering talents during and after the war at Arlington Hall, after the S.I.S. became the Army Security Agency, later to become AFSA and finally the present National Security Agency.
Alternative Linked Data Views: ODE     Raw Data in: CXML | CSV | RDF ( N-Triples N3/Turtle JSON XML ) | OData ( Atom JSON ) | Microdata ( JSON HTML) | JSON-LD    About   
This material is Open Knowledge   W3C Semantic Web Technology [RDF Data] Valid XHTML + RDFa
OpenLink Virtuoso version 07.20.3217, on Linux (x86_64-pc-linux-gnu), Standard Edition
Data on this page belongs to its respective rights holders.
Virtuoso Faceted Browser Copyright © 2009-2012 OpenLink Software