公开(公告)号：EP1540879B1

公开(公告)日：2013-02-20

申请号：EP03765628.7

申请日：2003-07-15

申请人： Cybersource Corporation

发明人： SHANKAR, Vishnu ,  EATON, Jason

IPC分类号： H04L9/18 ,  H04L9/12

CPC分类号： H04L9/12 ,  H04L9/0872

公开(公告)号：EP1540879A1

公开(公告)日：2005-06-15

申请号：EP03765628.7

申请日：2003-07-15

申请人： Cybersource Corporation

发明人： SHANKAR, Vishnu ,  EATON, Jason

IPC分类号： H04L9/18 ,  H04L9/12

CPC分类号： H04L9/12 ,  H04L9/0872

摘要： A method for generating a seed value for use in symmetric encryption includes creating and storing a first data set and generating a hashed value based on the first data set. A replacement position in the first data set is selected, and at least a portion of the hashed value is written into the first data set at the replacement position. A seed portion of the first data set is selected as the seed value. By varying a number of iterations, a balance can be struck between performance (fewer iterations) and security (more iterations).