专利名称：Password-based authentication发明人：Jan L. Camenisch,Anja Lehmann,Gregory
Neven
申请号：US14720099申请日：20150522公开号：US09537658B2公开日：20170103
专利附图：
摘要：A password authentication system includes an access control server configuredto control access by a user computer to a resource dependent on authentication of userpasswords associated with user IDs. The system further includes a plurality of
authentication servers, storing respective secret values. For each user ID, the accesscontrol server stores a first ciphertext produced by encrypting the user passwordassociated with that ID using a predetermined algorithm dependent on the secret values.In response to receipt of a user ID and an input password, the access control servercommunicates with the plurality of authentication servers to implement passwordauthentication, requiring use of the secret values, in which a second ciphertext isproduced by encrypting the input password using said predetermined algorithm. Theaccess control server compares the first and second ciphertexts to determine whetherthe input password equals the user password to permit access to the resource.
申请人：INTERNATIONAL BUSINESS MACHINES CORPORATION
地址：Armonk NY US
国籍：US
代理机构：Tutunjian & Bitetto, P.C.
代理人：Jeff LaBaw
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