Batch ciphertext equivalence test method and device
The invention provides a batch ciphertext equivalence test method and device. The method comprises the following steps: acquiring batch ciphertexts and all trap doors corresponding to the batch ciphertexts; the trap door of each ciphertext is used for testing the corresponding ciphertext, and the co...
Gespeichert in:
| Hauptverfasser: | , , , , , , , |
|---|---|
| Format: | Patent |
| Sprache: | chi ; eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | |
|---|---|
| container_issue | |
| container_start_page | |
| container_title | |
| container_volume | |
| creator | TANG ZEHUI LIU CHUANZHI ZENG SHENGKE SHENG WEIJIAN ZHOU TIANTIAN CHEN JUNSONG LI ZHIYANG WANG MENG |
| description | The invention provides a batch ciphertext equivalence test method and device. The method comprises the following steps: acquiring batch ciphertexts and all trap doors corresponding to the batch ciphertexts; the trap door of each ciphertext is used for testing the corresponding ciphertext, and the commitment of the corresponding ciphertext is obtained; determining whether the ciphertext sent by the sender is an invalid ciphertext or not according to the commitments of all the ciphertexts, so as to complete the verification of the ciphertext; under the condition that the ciphertext of the sender is an effective ciphertext, a tester constructs a new Lagrange polynomial according to the polynomial random point corresponding to each ciphertext in the batch of ciphertexts, and determines a secret value of the new Lagrange polynomial; and judging whether the secret value is equal to the secret values of the Lagrange polynomials corresponding to all the ciphertexts, and if so, determining that the plaintexts correspo |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_CN117640082A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>CN117640082A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_CN117640082A3</originalsourceid><addsrcrecordid>eNrjZDB2SixJzlBIzizISC0qSa0oUUgtLM0sS8xJzUtOVShJLS5RyE0tychPUUjMS1FISS3LTE7lYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GhuZmJgYGFkaOxsSoAQAEVCxs</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>Batch ciphertext equivalence test method and device</title><source>esp@cenet</source><creator>TANG ZEHUI ; LIU CHUANZHI ; ZENG SHENGKE ; SHENG WEIJIAN ; ZHOU TIANTIAN ; CHEN JUNSONG ; LI ZHIYANG ; WANG MENG</creator><creatorcontrib>TANG ZEHUI ; LIU CHUANZHI ; ZENG SHENGKE ; SHENG WEIJIAN ; ZHOU TIANTIAN ; CHEN JUNSONG ; LI ZHIYANG ; WANG MENG</creatorcontrib><description>The invention provides a batch ciphertext equivalence test method and device. The method comprises the following steps: acquiring batch ciphertexts and all trap doors corresponding to the batch ciphertexts; the trap door of each ciphertext is used for testing the corresponding ciphertext, and the commitment of the corresponding ciphertext is obtained; determining whether the ciphertext sent by the sender is an invalid ciphertext or not according to the commitments of all the ciphertexts, so as to complete the verification of the ciphertext; under the condition that the ciphertext of the sender is an effective ciphertext, a tester constructs a new Lagrange polynomial according to the polynomial random point corresponding to each ciphertext in the batch of ciphertexts, and determines a secret value of the new Lagrange polynomial; and judging whether the secret value is equal to the secret values of the Lagrange polynomials corresponding to all the ciphertexts, and if so, determining that the plaintexts correspo</description><language>chi ; eng</language><subject>CALCULATING ; COMPUTING ; COUNTING ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRIC DIGITAL DATA PROCESSING ; ELECTRICITY ; PHYSICS ; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><creationdate>2024</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240301&DB=EPODOC&CC=CN&NR=117640082A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76289</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20240301&DB=EPODOC&CC=CN&NR=117640082A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TANG ZEHUI</creatorcontrib><creatorcontrib>LIU CHUANZHI</creatorcontrib><creatorcontrib>ZENG SHENGKE</creatorcontrib><creatorcontrib>SHENG WEIJIAN</creatorcontrib><creatorcontrib>ZHOU TIANTIAN</creatorcontrib><creatorcontrib>CHEN JUNSONG</creatorcontrib><creatorcontrib>LI ZHIYANG</creatorcontrib><creatorcontrib>WANG MENG</creatorcontrib><title>Batch ciphertext equivalence test method and device</title><description>The invention provides a batch ciphertext equivalence test method and device. The method comprises the following steps: acquiring batch ciphertexts and all trap doors corresponding to the batch ciphertexts; the trap door of each ciphertext is used for testing the corresponding ciphertext, and the commitment of the corresponding ciphertext is obtained; determining whether the ciphertext sent by the sender is an invalid ciphertext or not according to the commitments of all the ciphertexts, so as to complete the verification of the ciphertext; under the condition that the ciphertext of the sender is an effective ciphertext, a tester constructs a new Lagrange polynomial according to the polynomial random point corresponding to each ciphertext in the batch of ciphertexts, and determines a secret value of the new Lagrange polynomial; and judging whether the secret value is equal to the secret values of the Lagrange polynomials corresponding to all the ciphertexts, and if so, determining that the plaintexts correspo</description><subject>CALCULATING</subject><subject>COMPUTING</subject><subject>COUNTING</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRIC DIGITAL DATA PROCESSING</subject><subject>ELECTRICITY</subject><subject>PHYSICS</subject><subject>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2024</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDB2SixJzlBIzizISC0qSa0oUUgtLM0sS8xJzUtOVShJLS5RyE0tychPUUjMS1FISS3LTE7lYWBNS8wpTuWF0twMim6uIc4euqkF-fGpxQWJyal5qSXxzn6GhuZmJgYGFkaOxsSoAQAEVCxs</recordid><startdate>20240301</startdate><enddate>20240301</enddate><creator>TANG ZEHUI</creator><creator>LIU CHUANZHI</creator><creator>ZENG SHENGKE</creator><creator>SHENG WEIJIAN</creator><creator>ZHOU TIANTIAN</creator><creator>CHEN JUNSONG</creator><creator>LI ZHIYANG</creator><creator>WANG MENG</creator><scope>EVB</scope></search><sort><creationdate>20240301</creationdate><title>Batch ciphertext equivalence test method and device</title><author>TANG ZEHUI ; LIU CHUANZHI ; ZENG SHENGKE ; SHENG WEIJIAN ; ZHOU TIANTIAN ; CHEN JUNSONG ; LI ZHIYANG ; WANG MENG</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN117640082A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2024</creationdate><topic>CALCULATING</topic><topic>COMPUTING</topic><topic>COUNTING</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRIC DIGITAL DATA PROCESSING</topic><topic>ELECTRICITY</topic><topic>PHYSICS</topic><topic>TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION</topic><toplevel>online_resources</toplevel><creatorcontrib>TANG ZEHUI</creatorcontrib><creatorcontrib>LIU CHUANZHI</creatorcontrib><creatorcontrib>ZENG SHENGKE</creatorcontrib><creatorcontrib>SHENG WEIJIAN</creatorcontrib><creatorcontrib>ZHOU TIANTIAN</creatorcontrib><creatorcontrib>CHEN JUNSONG</creatorcontrib><creatorcontrib>LI ZHIYANG</creatorcontrib><creatorcontrib>WANG MENG</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TANG ZEHUI</au><au>LIU CHUANZHI</au><au>ZENG SHENGKE</au><au>SHENG WEIJIAN</au><au>ZHOU TIANTIAN</au><au>CHEN JUNSONG</au><au>LI ZHIYANG</au><au>WANG MENG</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Batch ciphertext equivalence test method and device</title><date>2024-03-01</date><risdate>2024</risdate><abstract>The invention provides a batch ciphertext equivalence test method and device. The method comprises the following steps: acquiring batch ciphertexts and all trap doors corresponding to the batch ciphertexts; the trap door of each ciphertext is used for testing the corresponding ciphertext, and the commitment of the corresponding ciphertext is obtained; determining whether the ciphertext sent by the sender is an invalid ciphertext or not according to the commitments of all the ciphertexts, so as to complete the verification of the ciphertext; under the condition that the ciphertext of the sender is an effective ciphertext, a tester constructs a new Lagrange polynomial according to the polynomial random point corresponding to each ciphertext in the batch of ciphertexts, and determines a secret value of the new Lagrange polynomial; and judging whether the secret value is equal to the secret values of the Lagrange polynomials corresponding to all the ciphertexts, and if so, determining that the plaintexts correspo</abstract><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | |
| ispartof | |
| issn | |
| language | chi ; eng |
| recordid | cdi_epo_espacenet_CN117640082A |
| source | esp@cenet |
| subjects | CALCULATING COMPUTING COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC DIGITAL DATA PROCESSING ELECTRICITY PHYSICS TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION |
| title | Batch ciphertext equivalence test method and device |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-06T19%3A58%3A00IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-epo_EVB&rft_val_fmt=info:ofi/fmt:kev:mtx:patent&rft.genre=patent&rft.au=TANG%20ZEHUI&rft.date=2024-03-01&rft_id=info:doi/&rft_dat=%3Cepo_EVB%3ECN117640082A%3C/epo_EVB%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |