{"id":"https://openalex.org/W4381278821","doi":"https://doi.org/10.3384/ecp195694","title":"A WW2 device for breaking the M-209 encryption machine","display_name":"A WW2 device for breaking the M-209 encryption machine","publication_year":2023,"publication_date":"2023-05-30","ids":{"openalex":"https://openalex.org/W4381278821","doi":"https://doi.org/10.3384/ecp195694"},"language":"en","primary_location":{"id":"doi:10.3384/ecp195694","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3384/ecp195694","pdf_url":"https://ecp.ep.liu.se/index.php/histocrypt/article/download/694/600","source":{"id":"https://openalex.org/S4220651186","display_name":"Link\u00f6ping electronic conference proceedings","issn_l":"1650-3686","issn":["1650-3686","1650-3740"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310317096","host_organization_name":"Link\u00f6ping University Electronic Press","host_organization_lineage":["https://openalex.org/P4310317096"],"host_organization_lineage_names":["Link\u00f6ping University Electronic Press"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Link\u00f6ping Electronic Conference Proceedings","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://ecp.ep.liu.se/index.php/histocrypt/article/download/694/600","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5047277682","display_name":"Magnus Ekhall","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Magnus Ekhall","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5028654026","display_name":"Klaus Schmeh","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Klaus Schmeh","raw_affiliation_strings":[],"raw_orcid":null,"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":true,"cited_by_count":0,"citation_normalized_percentile":{"value":0.10920094,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12572","display_name":"Intelligence, Security, War Strategy","score":0.9767000079154968,"subfield":{"id":"https://openalex.org/subfields/3320","display_name":"Political Science and International Relations"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T12572","display_name":"Intelligence, Security, War Strategy","score":0.9767000079154968,"subfield":{"id":"https://openalex.org/subfields/3320","display_name":"Political Science and International Relations"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10951","display_name":"Cryptographic Implementations and Security","score":0.9381999969482422,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/cryptanalysis","display_name":"Cryptanalysis","score":0.6703916788101196},{"id":"https://openalex.org/keywords/turing","display_name":"Turing","score":0.5992584228515625},{"id":"https://openalex.org/keywords/german","display_name":"German","score":0.5920595526695251},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5662406086921692},{"id":"https://openalex.org/keywords/cipher","display_name":"Cipher","score":0.5251571536064148},{"id":"https://openalex.org/keywords/encryption","display_name":"Encryption","score":0.5115671753883362},{"id":"https://openalex.org/keywords/ciphertext","display_name":"Ciphertext","score":0.42898592352867126},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.40888354182243347},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.30366143584251404},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.27950555086135864},{"id":"https://openalex.org/keywords/history","display_name":"History","score":0.15666428208351135}],"concepts":[{"id":"https://openalex.org/C181149355","wikidata":"https://www.wikidata.org/wiki/Q897511","display_name":"Cryptanalysis","level":3,"score":0.6703916788101196},{"id":"https://openalex.org/C9870796","wikidata":"https://www.wikidata.org/wiki/Q490481","display_name":"Turing","level":2,"score":0.5992584228515625},{"id":"https://openalex.org/C154775046","wikidata":"https://www.wikidata.org/wiki/Q188","display_name":"German","level":2,"score":0.5920595526695251},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5662406086921692},{"id":"https://openalex.org/C2780221543","wikidata":"https://www.wikidata.org/wiki/Q4681865","display_name":"Cipher","level":3,"score":0.5251571536064148},{"id":"https://openalex.org/C148730421","wikidata":"https://www.wikidata.org/wiki/Q141090","display_name":"Encryption","level":2,"score":0.5115671753883362},{"id":"https://openalex.org/C93974786","wikidata":"https://www.wikidata.org/wiki/Q1589480","display_name":"Ciphertext","level":3,"score":0.42898592352867126},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40888354182243347},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.30366143584251404},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.27950555086135864},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.15666428208351135},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.3384/ecp195694","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3384/ecp195694","pdf_url":"https://ecp.ep.liu.se/index.php/histocrypt/article/download/694/600","source":{"id":"https://openalex.org/S4220651186","display_name":"Link\u00f6ping electronic conference proceedings","issn_l":"1650-3686","issn":["1650-3686","1650-3740"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310317096","host_organization_name":"Link\u00f6ping University Electronic Press","host_organization_lineage":["https://openalex.org/P4310317096"],"host_organization_lineage_names":["Link\u00f6ping University Electronic Press"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Link\u00f6ping Electronic Conference Proceedings","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.3384/ecp195694","is_oa":true,"landing_page_url":"http://dx.doi.org/10.3384/ecp195694","pdf_url":"https://ecp.ep.liu.se/index.php/histocrypt/article/download/694/600","source":{"id":"https://openalex.org/S4220651186","display_name":"Link\u00f6ping electronic conference proceedings","issn_l":"1650-3686","issn":["1650-3686","1650-3740"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310317096","host_organization_name":"Link\u00f6ping University Electronic Press","host_organization_lineage":["https://openalex.org/P4310317096"],"host_organization_lineage_names":["Link\u00f6ping University Electronic Press"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Link\u00f6ping Electronic Conference Proceedings","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4381278821.pdf"},"referenced_works_count":1,"referenced_works":["https://openalex.org/W3026155721"],"related_works":["https://openalex.org/W4386468470","https://openalex.org/W2049795142","https://openalex.org/W4206658950","https://openalex.org/W2361708288","https://openalex.org/W2026278835","https://openalex.org/W2174300598","https://openalex.org/W4295067341","https://openalex.org/W4292061453","https://openalex.org/W3006439118","https://openalex.org/W2787546317"],"abstract_inverted_index":{"According":[0],"to":[1],"an":[2,35],"eyewitness":[3],"report":[4],"by":[5],"German":[6,14],"engineer":[7],"Reinold":[8],"Weber":[9,75],"published":[10],"in":[11,23,57],"2004,":[12],"a":[13,66],"cryptanalysis":[15,67],"unit":[16],"broke":[17],"the":[18,24,31,49,58,74,79],"U.S.":[19],"cipher":[20],"machine":[21,37],"M-209":[22],"Second":[25],"World":[26],"War.":[27],"For":[28],"this":[29,82,89],"purpose,":[30],"specialists":[32],"involved":[33],"built":[34],"electromechanical":[36],"(\u201cWeber":[38],"machine\u201d),":[39],"which":[40],"included":[41],"binary":[42],"logic":[43],"and":[44],"bore":[45],"some":[46],"resemblance":[47],"with":[48,73],"Turing":[50],"Bombe.":[51],"In":[52],"previously":[53],"unpublished":[54],"documents":[55],"contained":[56],"TICOM":[59],"reports,":[60],"information":[61],"can":[62],"be":[63],"found":[64],"about":[65,88],"device":[68],"that":[69],"is":[70,86],"probably":[71],"identical":[72],"machine.":[76],"Based":[77],"on":[78],"said":[80],"sources,":[81],"paper":[83],"describes":[84],"what":[85],"known":[87],"deciphering":[90],"technology.":[91]},"counts_by_year":[],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}