{"id":"https://openalex.org/W2118737651","doi":"https://doi.org/10.1016/s0167-4048(03)00214-1","title":"A flexible date-attachment scheme on e-cash","display_name":"A flexible date-attachment scheme on e-cash","publication_year":2003,"publication_date":"2003-02-01","ids":{"openalex":"https://openalex.org/W2118737651","doi":"https://doi.org/10.1016/s0167-4048(03)00214-1","mag":"2118737651"},"language":"en","primary_location":{"id":"doi:10.1016/s0167-4048(03)00214-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-4048(03)00214-1","pdf_url":null,"source":{"id":"https://openalex.org/S12529635","display_name":"Computers & Security","issn_l":"0167-4048","issn":["0167-4048","1872-6208"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers &amp; Security","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5038550838","display_name":"Chin\u2010Chen Chang","orcid":"https://orcid.org/0000-0002-7319-5780"},"institutions":[{"id":"https://openalex.org/I148099254","display_name":"National Chung Cheng University","ror":"https://ror.org/0028v3876","country_code":"TW","type":"education","lineage":["https://openalex.org/I148099254"]}],"countries":["TW"],"is_corresponding":true,"raw_author_name":"Chin-Chen Chang","raw_affiliation_strings":["Department of Computer Science and Information Engineering, National Chung Cheng University, Chaiyi, 62107, Taiwan, ROC"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Information Engineering, National Chung Cheng University, Chaiyi, 62107, Taiwan, ROC","institution_ids":["https://openalex.org/I148099254"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047976185","display_name":"Yeu\u2010Pong Lai","orcid":null},"institutions":[{"id":"https://openalex.org/I148099254","display_name":"National Chung Cheng University","ror":"https://ror.org/0028v3876","country_code":"TW","type":"education","lineage":["https://openalex.org/I148099254"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Yeu-Pong Lai","raw_affiliation_strings":["Department of Computer Science and Information Engineering, National Chung Cheng University, Chaiyi, 62107, Taiwan, ROC"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science and Information Engineering, National Chung Cheng University, Chaiyi, 62107, Taiwan, ROC","institution_ids":["https://openalex.org/I148099254"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5038550838"],"corresponding_institution_ids":["https://openalex.org/I148099254"],"apc_list":{"value":3190,"currency":"USD","value_usd":3190},"apc_paid":null,"fwci":1.4101,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.82582288,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"22","issue":"2","first_page":"160","last_page":"166"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11797","display_name":"graph theory and CDMA systems","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9954000115394592,"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"}},{"id":"https://openalex.org/T11130","display_name":"Coding theory and cryptography","score":0.9753000140190125,"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/electronic-cash","display_name":"Electronic cash","score":0.9079809188842773},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.6869980692863464},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6119360327720642},{"id":"https://openalex.org/keywords/cash","display_name":"Cash","score":0.5709675550460815},{"id":"https://openalex.org/keywords/payment","display_name":"Payment","score":0.5551474094390869},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.46207287907600403},{"id":"https://openalex.org/keywords/electronic-money","display_name":"Electronic money","score":0.4527192711830139},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.2666909992694855},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.12452352046966553},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.11790254712104797},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.08778572082519531}],"concepts":[{"id":"https://openalex.org/C2778522442","wikidata":"https://www.wikidata.org/wiki/Q1326122","display_name":"Electronic cash","level":3,"score":0.9079809188842773},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.6869980692863464},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6119360327720642},{"id":"https://openalex.org/C2778083465","wikidata":"https://www.wikidata.org/wiki/Q693464","display_name":"Cash","level":2,"score":0.5709675550460815},{"id":"https://openalex.org/C145097563","wikidata":"https://www.wikidata.org/wiki/Q1148747","display_name":"Payment","level":2,"score":0.5551474094390869},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.46207287907600403},{"id":"https://openalex.org/C122941539","wikidata":"https://www.wikidata.org/wiki/Q10836209","display_name":"Electronic money","level":3,"score":0.4527192711830139},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.2666909992694855},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.12452352046966553},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.11790254712104797},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.08778572082519531},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/s0167-4048(03)00214-1","is_oa":false,"landing_page_url":"https://doi.org/10.1016/s0167-4048(03)00214-1","pdf_url":null,"source":{"id":"https://openalex.org/S12529635","display_name":"Computers & Security","issn_l":"0167-4048","issn":["0167-4048","1872-6208"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Computers &amp; Security","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1535861450","https://openalex.org/W1587826459","https://openalex.org/W1597801646","https://openalex.org/W1601001795","https://openalex.org/W2030178668","https://openalex.org/W2077806721","https://openalex.org/W2101805403","https://openalex.org/W2123684861","https://openalex.org/W2799019374","https://openalex.org/W3142333173"],"related_works":["https://openalex.org/W2123910101","https://openalex.org/W342241368","https://openalex.org/W1815903729","https://openalex.org/W2619218606","https://openalex.org/W2933038911","https://openalex.org/W2262119830","https://openalex.org/W2114806807","https://openalex.org/W2883510371","https://openalex.org/W2356099674","https://openalex.org/W2219950262"],"abstract_inverted_index":null,"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
