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On the generic construction of identity-based signatures with additional properties

機(jī)譯：關(guān)于具有附加屬性的基于身份的簽名的一般構(gòu)造

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It has been stated/demonstrated by Shamir (Crypto 1984) / Bellare, Neven, and Namprempre (Eurocrypt 2004) that identity-based signature schemes can be generically constructed from standard digital signature schemes. In this paper we consider the following natural extension: is there a generic construction of " identity-based signature schemes with additional properties" (such as identity-based blind signatures, verifiably encrypted signatures,...) from standard signature schemes with the same properties? Our results show that this is possible for a number of properties including proxy signatures; (partially) blind signatures; verifiably encrypted signatures; undeniable signatures; forward-secure signatures; (strongly) key insulated signatures; online/offline signatures; threshold signatures; and (with some limitations) aggregate signatures. Using well-known results for standard signature schemes, we conclude that explicit identity-based signature schemes with additional properties can be constructed, enjoying sometimes better properties than specific schemes proposed until now. In particular, our work implies the existence of identity-based signatures with additional properties that are provably secure in the standard model, do not need bilinear pairings, or can be based on general assumptions.
機(jī)譯：Shamir（Crypto 1984）/ Bellare，Neven和Namprempre（Eurocrypt 2004）已經(jīng)聲明/演示了基于身份的簽名方案可以從標(biāo)準(zhǔn)的數(shù)字簽名方案中普遍構(gòu)建。在本文中，我們考慮以下自然擴(kuò)展：從具有相同屬性的標(biāo)準(zhǔn)簽名方案中，是否存在“具有附加屬性的基于身份的簽名方案”（例如基于身份的盲簽名，可驗(yàn)證加密的簽名...）的泛型構(gòu)造？屬性？我們的結(jié)果表明，這對(duì)于包括代理簽名在內(nèi)的許多屬性都是可行的。 （部分）盲目簽名;可驗(yàn)證的加密簽名;不可否認(rèn)的簽名;前向安全簽名; （強(qiáng)烈）密鑰隔離簽名;在線/離線簽名;門限簽名;和（有一定限制）集合簽名。使用標(biāo)準(zhǔn)簽名方案的眾所周知的結(jié)果，我們得出結(jié)論，可以構(gòu)建具有附加屬性的顯式的基于身份的簽名方案，與目前提出的特定方案相比，有時(shí)可以享受更好的屬性。特別地，我們的工作意味著基于身份的簽名具有附加屬性，這些附加屬性在標(biāo)準(zhǔn)模型中可證明是安全的，不需要雙線性配對(duì)，或者可以基于一般假設(shè)。

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