K 10 svn:author V 4 ache K 8 svn:date V 27 2002-01-19T10:09:05.000000Z K 7 svn:log V 208 If user not exist in OPIE system, return failure immediately instead of producing fake prompts with random numbers which can be detected by potential intruder in two tries and totally confuse non-OPIE users. END