KEY DISTRIBUTION METHOD AND SYSTEM

专利名称：KEY DISTRIBUTION METHOD AND SYSTEM发明人：MA, JINGWANG,JIA, QIAN,YU, WANTAO申请号：EP09823021申请日：20090812公开号：EP2341659A4公开日：20130424

摘要：This invention discloses a key distribution method and system. The methodincludes: notifying, by an application provider management platform, a supplementarysecurity domain of an application provider that is set on a smart card and corresponds tothe application provider management platform to generate a public/private key pairincluding a public cryptographic key and a private cryptographic key; receiving, by theapplication provider management platform, the public cryptographic key from thesupplementary security domain of the application provider that has been encrypted bythe public key of the application provider obtained in advance and has been signed by aControlling Authority Security Domain (CASD) on the smart card through a card issuermanagement platform; authenticating, by the application provider managementplatform, a signature and using the private key of the application provider to performdecryption to obtain the public cryptographic key; and sending, by the applicationprovider management platform, a trust point's public key used for external

authentication and a certificate of the supplementary security domain of the applicationprovider to the supplementary security domain of the application provider after the trustpoint's public key and the certificate have been encrypted by the public cryptographickey of the supplementary security domain of the application provider and the encrypted

data have been signed by the private key of the application provider, to completedistribution of a key of the supplementary security domain.

申请人：ZTE CORPORATION

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