In a public key encryption scheme was proposed against adversaries with a bounded number of decryption queries based on the decisional Diffie-Helman Problems. In this paper, we show that the same result can be easily obtained based on weaker computational assumptions, namely: the computational Diffie-Helman assumption and the hashed Diffie-Helman assumption.<\/p>\n","protected":false},"excerpt":{"rendered":"
In a public key encryption scheme was proposed against adversaries with a bounded number of decryption queries based on the decisional Diffie-Helman Problems. In this paper, we show that the same result can be easily obtained based on weaker computational assumptions, namely: the computational Diffie-Helman assumption and the hashed Diffie-Helman assumption.<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"10","msr_journal":"The Computer Journal","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"2738","msr_page_range_end":"2746","msr_series":"","msr_volume":"58","msr_copyright":"","msr_conference_name":"","msr_doi":"","msr_arxiv_id":"","msr_s2_paper_id":"","msr_mag_id":"2173066479","msr_pubmed_id":"","msr_other_authors":"","msr_other_contributors":"","msr_speaker":"","msr_award":"","msr_affiliation":"","msr_institution":"","msr_host":"","msr_version":"","msr_duration":"","msr_original_fields_of_study":null,"msr_release_tracker_id":"","msr_s2_match_type":"","msr_citation_count_updated":"","msr_published_date":"2015-9-30","msr_highlight_text":"","msr_notes":"","msr_longbiography":"","msr_publicationurl":"","msr_external_url":"","msr_secondary_video_url":"","msr_conference_url":"","msr_journal_url":"","msr_s2_pdf_url":"","msr_year":0,"msr_citation_count":0,"msr_influential_citations":0,"msr_reference_count":0,"msr_s2_match_confidence":0,"msr_microsoftintellectualproperty":false,"msr_s2_open_access":false,"msr_s2_author_ids":[],"msr_pub_ids":[],"msr_hide_image_in_river":0,"footnotes":""},"msr-research-highlight":[],"research-area":[13558],"msr-publication-type":[193715],"msr-publisher":[],"msr-focus-area":[],"msr-locale":[268875],"msr-post-option":[],"msr-field-of-study":[258076,258091,258082,246691,248383,258079,258094,258085,254551,258088],"msr-conference":[],"msr-journal":[],"msr-impact-theme":[],"msr-pillar":[],"class_list":["post-760606","msr-research-item","type-msr-research-item","status-publish","hentry","msr-research-area-security-privacy-cryptography","msr-locale-en_us","msr-field-of-study-attribute-based-encryption","msr-field-of-study-ciphertext","msr-field-of-study-ciphertext-indistinguishability","msr-field-of-study-computer-science","msr-field-of-study-computer-security","msr-field-of-study-deterministic-encryption","msr-field-of-study-malleability","msr-field-of-study-plaintext-aware-encryption","msr-field-of-study-public-key-cryptography","msr-field-of-study-semantic-security"],"msr_publishername":"","msr_edition":"","msr_affiliation":"","msr_published_date":"2015-9-30","msr_host":"","msr_duration":"","msr_version":"","msr_speaker":"","msr_other_contributors":"","msr_booktitle":"","msr_pages_string":"","msr_chapter":"","msr_isbn":"","msr_journal":"The Computer Journal","msr_volume":"58","msr_number":"","msr_editors":"","msr_series":"","msr_issue":"10","msr_organization":"","msr_how_published":"","msr_notes":"","msr_highlight_text":"","msr_release_tracker_id":"","msr_original_fields_of_study":"","msr_download_urls":"","msr_external_url":"","msr_secondary_video_url":"","msr_longbiography":"","msr_microsoftintellectualproperty":0,"msr_main_download":"","msr_publicationurl":"","msr_doi":"","msr_publication_uploader":[{"type":"doi","viewUrl":"false","id":"false","title":"10.1093\/COMJNL\/BXV040","label_id":"243106","label":0},{"type":"url","viewUrl":"false","id":"false","title":"https:\/\/academic.oup.com\/comjnl\/article\/58\/10\/2738\/454703","label_id":"243109","label":0},{"type":"url","viewUrl":"false","id":"false","title":"https:\/\/dblp.uni-trier.de\/db\/journals\/cj\/cj58.html#PereiraDNH15","label_id":"243109","label":0},{"type":"url","viewUrl":"false","id":"false","title":"https:\/\/digitalcommons.tacoma.uw.edu\/tech_pub\/41\/","label_id":"243109","label":0},{"type":"url","viewUrl":"false","id":"false","title":"https:\/\/research.monash.edu\/en\/publications\/public-key-encryption-schemes-with-bounded-cca-security-and-optim-2","label_id":"243109","label":0},{"type":"url","viewUrl":"false","id":"false","title":"https:\/\/works.bepress.com\/anderson-nascimento\/11\/","label_id":"243109","label":0}],"msr_related_uploader":"","msr_citation_count":0,"msr_citation_count_updated":"","msr_s2_paper_id":"","msr_influential_citations":0,"msr_reference_count":0,"msr_arxiv_id":"","msr_s2_author_ids":[],"msr_s2_open_access":false,"msr_s2_pdf_url":null,"msr_attachments":[],"msr-author-ordering":[{"type":"user_nicename","value":"Mayana Pereira","user_id":40474,"rest_url":"https:\/\/cm-edgetun.pages.dev\/en-us\/research\/wp-json\/microsoft-research\/v1\/researchers?person=Mayana Pereira"},{"type":"text","value":"Rafael Dowsley","user_id":0,"rest_url":false},{"type":"text","value":"Anderson C.A. 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