公开(公告)号：GB2494022A

公开(公告)日：2013-02-27

申请号：GB201212460

申请日：2012-07-13

Applicant: IBM

Inventor： KELLEY JOHN FALK ,  BROWN DOUGLAS STUART ,  TORRES ROBERT ,  SEAGER TODD

IPC: H04L29/06 ,  H04L9/08

Abstract: A system for controlling access to an encrypted document in which a computer receives a request to access the encrypted document, the access request comprising a user ID and a user password. The computer performs a one-way hash function on the user password to generate a hash value. The computer searches an access control table for the hash value which indicates an authorization for the user to access the encrypted document and corresponds to a document password encrypted with the user password. The computer decrypts the document password using the user password. The computer decrypts the encrypted document using the decrypted document password.