{"title":"安全有效的私钥委托使用方案","authors":"K. Shin","doi":"10.1109/ENABL.1999.805195","DOIUrl":null,"url":null,"abstract":"This paper presents a practical method which enables an owner of a private key to entrust the use of the key to an entrustee without exposing the actual key. The following are features of the method: it covers a wide variety of existing public-key cryptographic algorithms; it provides the owner of the private key with a means of preventing the entrustee from abusing the entrusted key beyond the limits which the key owner arbitrarily specifies; it only adds a very small, usually negligible, amount of overhead to calculations required in the base public-key cryptographic algorithm. An outline of our method is as follows. An owner of a private key issues to an entrustee data called a ticket through the cooperation of a trusted third party. With the ticket, the entrustee can execute calculations, which yield the same results as those using the actual private key do.","PeriodicalId":287840,"journal":{"name":"Proceedings. IEEE 8th International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WET ICE'99)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1999-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Secure and efficient schemes to entrust the use of private keys\",\"authors\":\"K. Shin\",\"doi\":\"10.1109/ENABL.1999.805195\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper presents a practical method which enables an owner of a private key to entrust the use of the key to an entrustee without exposing the actual key. The following are features of the method: it covers a wide variety of existing public-key cryptographic algorithms; it provides the owner of the private key with a means of preventing the entrustee from abusing the entrusted key beyond the limits which the key owner arbitrarily specifies; it only adds a very small, usually negligible, amount of overhead to calculations required in the base public-key cryptographic algorithm. An outline of our method is as follows. An owner of a private key issues to an entrustee data called a ticket through the cooperation of a trusted third party. With the ticket, the entrustee can execute calculations, which yield the same results as those using the actual private key do.\",\"PeriodicalId\":287840,\"journal\":{\"name\":\"Proceedings. IEEE 8th International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WET ICE'99)\",\"volume\":\"64 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1999-06-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings. IEEE 8th International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WET ICE'99)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ENABL.1999.805195\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings. IEEE 8th International Workshops on Enabling Technologies: Infrastructure for Collaborative Enterprises (WET ICE'99)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ENABL.1999.805195","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Secure and efficient schemes to entrust the use of private keys
This paper presents a practical method which enables an owner of a private key to entrust the use of the key to an entrustee without exposing the actual key. The following are features of the method: it covers a wide variety of existing public-key cryptographic algorithms; it provides the owner of the private key with a means of preventing the entrustee from abusing the entrusted key beyond the limits which the key owner arbitrarily specifies; it only adds a very small, usually negligible, amount of overhead to calculations required in the base public-key cryptographic algorithm. An outline of our method is as follows. An owner of a private key issues to an entrustee data called a ticket through the cooperation of a trusted third party. With the ticket, the entrustee can execute calculations, which yield the same results as those using the actual private key do.