以赛普公司开发的软件"企业合并及全面预算管理"(business planning and consolidation,BPC)为基础,对企业合并会计报表自动化处理的应用进行了分析。结果表明,通过该自动化方案进行的转化,既避免了传统模式转化容易产生的错...以赛普公司开发的软件"企业合并及全面预算管理"(business planning and consolidation,BPC)为基础,对企业合并会计报表自动化处理的应用进行了分析。结果表明,通过该自动化方案进行的转化,既避免了传统模式转化容易产生的错误,又避免了大量活劳动耗费,且可以提供及时准确的会计信息,为企业高效决策提供服务。展开更多
Attribute-based encryption(ABE) supports the fine-grained sharing of encrypted data.In some common designs,attributes are managed by an attribute authority that is supposed to be fully trustworthy.This concept implies...Attribute-based encryption(ABE) supports the fine-grained sharing of encrypted data.In some common designs,attributes are managed by an attribute authority that is supposed to be fully trustworthy.This concept implies that the attribute authority can access all encrypted data,which is known as the key escrow problem.In addition,because all access privileges are defined over a single attribute universe and attributes are shared among multiple data users,the revocation of users is inefficient for the existing ABE scheme.In this paper,we propose a novel scheme that solves the key escrow problem and supports efficient user revocation.First,an access controller is introduced into the existing scheme,and then,secret keys are generated corporately by the attribute authority and access controller.Second,an efficient user revocation mechanism is achieved using a version key that supports forward and backward security.The analysis proves that our scheme is secure and efficient in user authorization and revocation.展开更多
文摘以赛普公司开发的软件"企业合并及全面预算管理"(business planning and consolidation,BPC)为基础,对企业合并会计报表自动化处理的应用进行了分析。结果表明,通过该自动化方案进行的转化,既避免了传统模式转化容易产生的错误,又避免了大量活劳动耗费,且可以提供及时准确的会计信息,为企业高效决策提供服务。
基金supported by the NSFC(61173141,U1536206,61232016, U1405254,61373133,61502242,61572258)BK20150925+3 种基金Fund of Jiangsu Engineering Center of Network Monitoring(KJR1402)Fund of MOE Internet Innovation Platform(KJRP1403)CICAEETthe PAPD fund
文摘Attribute-based encryption(ABE) supports the fine-grained sharing of encrypted data.In some common designs,attributes are managed by an attribute authority that is supposed to be fully trustworthy.This concept implies that the attribute authority can access all encrypted data,which is known as the key escrow problem.In addition,because all access privileges are defined over a single attribute universe and attributes are shared among multiple data users,the revocation of users is inefficient for the existing ABE scheme.In this paper,we propose a novel scheme that solves the key escrow problem and supports efficient user revocation.First,an access controller is introduced into the existing scheme,and then,secret keys are generated corporately by the attribute authority and access controller.Second,an efficient user revocation mechanism is achieved using a version key that supports forward and backward security.The analysis proves that our scheme is secure and efficient in user authorization and revocation.
