基于ID的群向簽名方案
ID Based Group Oriented Signature
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摘要: 該文首先提出了一種新的簽字模型，并由此設(shè)計(jì)了一種新的群向簽名方案，其具有如下特點(diǎn)：基于ID的密碼概念；不具有密鑰托管功能，也就是只有成員自己知道自己的私鑰，而其他成員，包括PKG也不知道；指定簽名驗(yàn)證群中的每一個(gè)成員都可以獨(dú)立地完成對(duì)簽名的驗(yàn)證。此簽名不是基于秘密共享技術(shù)的，因此，他不需要多名成員來(lái)共同完成對(duì)簽名的驗(yàn)證。這樣，既減少了對(duì)系統(tǒng)資源的占用，又提高了系統(tǒng)的效率。
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關(guān)鍵詞:
- 公鑰密碼;群向簽名;密鑰托管
Abstract: A new kind of group-oriented signature is presented with a new signature model in this paper. The signature has the following properties: it is based on ID cryptography concept; does not have the function of key escrow, that is, no one, other than the member himself, knows the secret key, even the PKG does not know; the member in the designated group can verify the signature independently. The secret sharing is not used in the signature, so the cooperation among the members is not needed. Comparing to other group-oriented signature, the new one uses less system resources, and improves the system efficiency. -
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