{"id":"https://openalex.org/W2214854691","doi":"https://doi.org/10.1007/978-3-642-36362-7_7","title":"Cryptography Using Captcha Puzzles","display_name":"Cryptography Using Captcha Puzzles","publication_year":2013,"publication_date":"2013-01-01","ids":{"openalex":"https://openalex.org/W2214854691","doi":"https://doi.org/10.1007/978-3-642-36362-7_7","mag":"2214854691"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-642-36362-7_7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-36362-7_7","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5027644469","display_name":"Abishek Kumarasubramanian","orcid":null},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Abishek Kumarasubramanian","raw_affiliation_strings":["University of California, Los Angeles, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Los Angeles, USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020375635","display_name":"Rafail Ostrovsky","orcid":"https://orcid.org/0000-0002-1501-1330"},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Rafail Ostrovsky","raw_affiliation_strings":["University of California, Los Angeles, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Los Angeles, USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061205746","display_name":"Omkant Pandey","orcid":null},"institutions":[{"id":"https://openalex.org/I86519309","display_name":"The University of Texas at Austin","ror":"https://ror.org/00hj54h04","country_code":"US","type":"education","lineage":["https://openalex.org/I86519309"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Omkant Pandey","raw_affiliation_strings":["University of Texas at Austin, USA"],"affiliations":[{"raw_affiliation_string":"University of Texas at Austin, USA","institution_ids":["https://openalex.org/I86519309"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084586086","display_name":"Akshay Wadia","orcid":"https://orcid.org/0000-0002-2792-1614"},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Akshay Wadia","raw_affiliation_strings":["University of California, Los Angeles, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Los Angeles, USA","institution_ids":["https://openalex.org/I161318765"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5027644469"],"corresponding_institution_ids":["https://openalex.org/I161318765"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":0.6789,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.73543855,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"89","last_page":"106"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9994000196456909,"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"}},"topics":[{"id":"https://openalex.org/T10237","display_name":"Cryptography and Data Security","score":0.9994000196456909,"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/T10388","display_name":"Advanced Steganography and Watermarking Techniques","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T11800","display_name":"User Authentication and Security Systems","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/captcha","display_name":"CAPTCHA","score":0.9988418817520142},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8166025876998901},{"id":"https://openalex.org/keywords/composability","display_name":"Composability","score":0.610234797000885},{"id":"https://openalex.org/keywords/cryptography","display_name":"Cryptography","score":0.5424891114234924},{"id":"https://openalex.org/keywords/construct","display_name":"Construct (python library)","score":0.5366069674491882},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.5130995512008667},{"id":"https://openalex.org/keywords/protocol","display_name":"Protocol (science)","score":0.49353015422821045},{"id":"https://openalex.org/keywords/commitment-scheme","display_name":"Commitment scheme","score":0.47136345505714417},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.44109174609184265},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3745447099208832},{"id":"https://openalex.org/keywords/computer-security","display_name":"Computer security","score":0.2878982126712799},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.15830731391906738},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.13170617818832397},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.11250263452529907}],"concepts":[{"id":"https://openalex.org/C163339463","wikidata":"https://www.wikidata.org/wiki/Q484598","display_name":"CAPTCHA","level":2,"score":0.9988418817520142},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8166025876998901},{"id":"https://openalex.org/C2778814252","wikidata":"https://www.wikidata.org/wiki/Q5156715","display_name":"Composability","level":2,"score":0.610234797000885},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.5424891114234924},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.5366069674491882},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5130995512008667},{"id":"https://openalex.org/C2780385302","wikidata":"https://www.wikidata.org/wiki/Q367158","display_name":"Protocol (science)","level":3,"score":0.49353015422821045},{"id":"https://openalex.org/C91399829","wikidata":"https://www.wikidata.org/wiki/Q1115684","display_name":"Commitment scheme","level":3,"score":0.47136345505714417},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.44109174609184265},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3745447099208832},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.2878982126712799},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.15830731391906738},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.13170617818832397},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.11250263452529907},{"id":"https://openalex.org/C204787440","wikidata":"https://www.wikidata.org/wiki/Q188504","display_name":"Alternative medicine","level":2,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"score":0.0},{"id":"https://openalex.org/C142724271","wikidata":"https://www.wikidata.org/wiki/Q7208","display_name":"Pathology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-642-36362-7_7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-642-36362-7_7","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W259957856","https://openalex.org/W296683941","https://openalex.org/W987035227","https://openalex.org/W1490590996","https://openalex.org/W1491571599","https://openalex.org/W1499934958","https://openalex.org/W1504856445","https://openalex.org/W1527197079","https://openalex.org/W1528853875","https://openalex.org/W1538909282","https://openalex.org/W1548880861","https://openalex.org/W1550137840","https://openalex.org/W1551902067","https://openalex.org/W1552695147","https://openalex.org/W1577653766","https://openalex.org/W1577682295","https://openalex.org/W1591073929","https://openalex.org/W1603565383","https://openalex.org/W1823595194","https://openalex.org/W1840639073","https://openalex.org/W1867273832","https://openalex.org/W1979280691","https://openalex.org/W1988909447","https://openalex.org/W2004895849","https://openalex.org/W2051078457","https://openalex.org/W2051250911","https://openalex.org/W2052605513","https://openalex.org/W2064265141","https://openalex.org/W2065722310","https://openalex.org/W2069549542","https://openalex.org/W2077140897","https://openalex.org/W2087140440","https://openalex.org/W2090903439","https://openalex.org/W2103230338","https://openalex.org/W2113085788","https://openalex.org/W2134679597","https://openalex.org/W2144613321","https://openalex.org/W2148373594","https://openalex.org/W2153657906","https://openalex.org/W2157779300","https://openalex.org/W2163172859","https://openalex.org/W2911777915","https://openalex.org/W3028615692","https://openalex.org/W4285719527","https://openalex.org/W4298227433"],"related_works":["https://openalex.org/W3134776999","https://openalex.org/W2028308373","https://openalex.org/W2064097623","https://openalex.org/W1966530388","https://openalex.org/W2951596214","https://openalex.org/W3028951163","https://openalex.org/W1505871300","https://openalex.org/W2159493100","https://openalex.org/W2097551369","https://openalex.org/W2037285013"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
