JP2023544198A5 - - Google Patents
Info
- Publication number
- JP2023544198A5 JP2023544198A5 JP2023521063A JP2023521063A JP2023544198A5 JP 2023544198 A5 JP2023544198 A5 JP 2023544198A5 JP 2023521063 A JP2023521063 A JP 2023521063A JP 2023521063 A JP2023521063 A JP 2023521063A JP 2023544198 A5 JP2023544198 A5 JP 2023544198A5
- Authority
- JP
- Japan
- Prior art keywords
- message
- authority
- user
- attributes
- lwe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063087866P | 2020-10-05 | 2020-10-05 | |
| US63/087,866 | 2020-10-05 | ||
| PCT/US2021/053415 WO2022076327A1 (en) | 2020-10-05 | 2021-10-04 | Decentralized multi-authority attribute-based encryption |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2023544198A JP2023544198A (ja) | 2023-10-20 |
| JP2023544198A5 true JP2023544198A5 (https=) | 2024-08-15 |
| JP7700851B2 JP7700851B2 (ja) | 2025-07-01 |
Family
ID=81125442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023521063A Active JP7700851B2 (ja) | 2020-10-05 | 2021-10-04 | 分散型マルチ権限属性ベース暗号 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US12238212B2 (https=) |
| EP (1) | EP4226575B1 (https=) |
| JP (1) | JP7700851B2 (https=) |
| WO (1) | WO2022076327A1 (https=) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230016859A1 (en) * | 2020-07-13 | 2023-01-19 | Inpher, Inc. | Multi-Pivot Partial Quicksort and Oblivious Comparisons of Secret Shared Arithmetic Values in a Multi-Party Computing Setting |
| US12375286B2 (en) * | 2021-01-06 | 2025-07-29 | Ntt Research, Inc. | Decentralized multi-authority attribute-based encryption from bilinear diffie-hellman assumptions |
| JP7691400B2 (ja) * | 2022-09-28 | 2025-06-11 | Kddi株式会社 | 暗号化装置、暗号化方法及び暗号化プログラム |
| WO2025212723A1 (en) * | 2024-04-02 | 2025-10-09 | Ntt Research, Inc. | Reduced-size ciphertext compatible with pre-existing attribute-based encryption schemes |
| CN119519962A (zh) * | 2024-11-18 | 2025-02-25 | 中国移动紫金(江苏)创新研究院有限公司 | 跨链数据传输方法及系统 |
| CN119652608B (zh) * | 2024-12-06 | 2025-10-10 | 东南大学 | 具有非单调访问控制结构的多客户端求交函数加密方法、存储介质及设备 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100185861A1 (en) * | 2009-01-19 | 2010-07-22 | Microsoft Corporation | Anonymous key issuing for attribute-based encryption |
| JP6305638B2 (ja) * | 2015-04-07 | 2018-04-04 | 三菱電機株式会社 | 暗号システム及び鍵生成装置 |
| JP6700797B2 (ja) * | 2016-01-13 | 2020-05-27 | 日本放送協会 | 鍵生成装置、中間暗号化装置、委託暗号化装置、復号装置およびそれらのプログラム、ならびに、個人情報保護システム |
| US11140141B2 (en) * | 2017-09-18 | 2021-10-05 | Fiske Software Llc | Multiparty key exchange |
-
2021
- 2021-10-04 JP JP2023521063A patent/JP7700851B2/ja active Active
- 2021-10-04 US US18/030,436 patent/US12238212B2/en active Active
- 2021-10-04 EP EP21878308.2A patent/EP4226575B1/en active Active
- 2021-10-04 WO PCT/US2021/053415 patent/WO2022076327A1/en not_active Ceased
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2023544198A5 (https=) | ||
| CN108881314B (zh) | 雾计算环境下基于cp-abe密文隐私保护方法及系统 | |
| CN104113408B (zh) | 一种实现及时用户属性撤销的基于密文策略属性加密方法 | |
| CN107086911B (zh) | 一种cca安全的可委托验证的代理重加密方法 | |
| US20080165956A1 (en) | Content Encryption Schema For Integrating Digital Rights Management With Encrypted Multicast | |
| CN104901942A (zh) | 一种基于属性加密的分布式访问控制方法 | |
| CN114219483A (zh) | 基于lwe-cpabe的区块链数据共享方法、设备和存储介质 | |
| CN115296817A (zh) | 基于区块链技术和属性加密的数据访问控制方法 | |
| US20220407690A1 (en) | Key ladder generating a device public key | |
| CN106059768A (zh) | 抵抗重加密密钥泄露的属性可撤销加密系统及方法 | |
| JP2024514711A5 (https=) | ||
| JPWO2021009860A5 (https=) | ||
| CN113965320A (zh) | 一种支持快速撤销的密文策略属性加密方法 | |
| CN120263480A (zh) | 一种基于sm9的属性基代理重加密的数据共享方法 | |
| CN107241191A (zh) | 一种抗密钥克隆、密钥滥用的基于属性加密方法 | |
| CN114629640A (zh) | 一种解决密钥托管问题的白盒可追责属性基加密系统及其方法 | |
| CN114157424A (zh) | 无密钥托管且支持用户撤销的属性基加密系统及方法 | |
| JP2011528521A (ja) | 鍵生成の方法および装置 | |
| CN113141249B (zh) | 一种门限解密方法、系统及可读存储介质 | |
| CN113206739B (zh) | 组合公钥cpk的密钥生成方法、装置及存储介质 | |
| CN117371003A (zh) | 基于改进的多授权cp-abe供应链溯源数据访问控制方法 | |
| CN119966635B (zh) | 一种基于签名的sm9证据加解密方法、装置及系统 | |
| CN120281580B (zh) | 一种支持协作解密的lsss访问结构构造方法及装置 | |
| CN121814321B (zh) | 一种抗量子阈值加密方法及系统 | |
| CN102324994B (zh) | 用于广播加密最优化和可扩展性的系统和方法 |