Secure obfuscation for encrypted threshold signatures
Aiming at the key leakage security problem of the threshold signature,an encrypted threshold signature functionality was firstly proposed and securely obfuscated.The output of obfuscated circuit could be implemented by any third party without revealing the private key of threshold signature.Secondly...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2020-06-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020129/ |
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| _version_ | 1841539386212089856 |
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| author | Yahong LI Caifen WANG Yulei ZHANG Xiaodong YANG Haiyan HUANG |
| author_facet | Yahong LI Caifen WANG Yulei ZHANG Xiaodong YANG Haiyan HUANG |
| author_sort | Yahong LI |
| collection | DOAJ |
| description | Aiming at the key leakage security problem of the threshold signature,an encrypted threshold signature functionality was firstly proposed and securely obfuscated.The output of obfuscated circuit could be implemented by any third party without revealing the private key of threshold signature.Secondly,the security models of encrypted threshold signature functionality and the obfuscator were defined,such as the existential unforgeablity and the average case virtual black box property,and its correctness and security were proved.The analyses of theory and simulation experiment show that the obfuscation for encrypted threshold signature has feasibility. |
| format | Article |
| id | doaj-art-de25b736cdf44b44a8f146211a7aac4c |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2020-06-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-de25b736cdf44b44a8f146211a7aac4c2025-01-14T07:19:05ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2020-06-0141616959734833Secure obfuscation for encrypted threshold signaturesYahong LICaifen WANGYulei ZHANGXiaodong YANGHaiyan HUANGAiming at the key leakage security problem of the threshold signature,an encrypted threshold signature functionality was firstly proposed and securely obfuscated.The output of obfuscated circuit could be implemented by any third party without revealing the private key of threshold signature.Secondly,the security models of encrypted threshold signature functionality and the obfuscator were defined,such as the existential unforgeablity and the average case virtual black box property,and its correctness and security were proved.The analyses of theory and simulation experiment show that the obfuscation for encrypted threshold signature has feasibility.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020129/obfuscationencrypted threshold signatureencrypted private keyaverage case virtual black box property |
| spellingShingle | Yahong LI Caifen WANG Yulei ZHANG Xiaodong YANG Haiyan HUANG Secure obfuscation for encrypted threshold signatures Tongxin xuebao obfuscation encrypted threshold signature encrypted private key average case virtual black box property |
| title | Secure obfuscation for encrypted threshold signatures |
| title_full | Secure obfuscation for encrypted threshold signatures |
| title_fullStr | Secure obfuscation for encrypted threshold signatures |
| title_full_unstemmed | Secure obfuscation for encrypted threshold signatures |
| title_short | Secure obfuscation for encrypted threshold signatures |
| title_sort | secure obfuscation for encrypted threshold signatures |
| topic | obfuscation encrypted threshold signature encrypted private key average case virtual black box property |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2020129/ |
| work_keys_str_mv | AT yahongli secureobfuscationforencryptedthresholdsignatures AT caifenwang secureobfuscationforencryptedthresholdsignatures AT yuleizhang secureobfuscationforencryptedthresholdsignatures AT xiaodongyang secureobfuscationforencryptedthresholdsignatures AT haiyanhuang secureobfuscationforencryptedthresholdsignatures |