asp.net - Get UUID of a client computer in javascript -


i need generate uuid store in database. can generate theses uuid javascript on client browser ?

can tell me how/whether can client computer identifier in asp.net/or javascript ? (the client in network not local intranet)

(what client computer indentifier? think such as: client computer mac address, or hardware guid (like cpu, network card, etc. ) ?)

currently generating uuid of client following code using activex in vbscript . 

public function getuuid(strcomputer)      dim objwmi, colitems, objitem, struuid, blnvaliduuid      set objwmi = getobject("winmgmts:\\" & strcomputer & "\root\cimv2")     set colitems = objwmi.execquery("select * win32_computersystemproduct")     struuid = ""     blnvaliduuid = false     each objitem in colitems         struuid = objitem.uuid         if not isempty(struuid) or not isnull(struuid)             if (struuid <> "00000000-0000-0000-0000-000000000000") , _                 (struuid <> "ffffffff-ffff-ffff-ffff-ffffffffffff")                 blnvaliduuid = true                 exit             end if         end if     next     set objwmi = nothing     if not blnvaliduuid         set colitems = getobject("winmgmts:" & strcomputer & "\root\cimv2").instancesof("win32_networkadapter")         each objitem in colitems             if (objitem.adaptertype = "ethernet 802.3")                 if (objitem.description <> "packet scheduler miniport")                     struuid = "00000000-0000-0000-0000-" & replace(objitem.macaddress, ":", "")                     exit                 end if             end if         next         set nicset = nothing     end if     getuuid = struuid  end function

i not want use activex anymore . rather want javascript . in javascript , have found code uniquely generate uuid depicted in following code : 

var number = math.random() // 0.9394456857981651 number.tostring(36); // '0.xtis06h6' var id = number.tostring(36).substr(2, 9);

but above javascript code getting different uuid same client when running script repeatedly .

on other hand , above vbscript generates unique id same client . script run single client pc thousand time , script generates same id pc generates different id .

i want . can me ? (this business system, , customer approved client computer hardware identifier, how can in asp.net/javascript? ) .

edit want in javascript beacause activex in vbscript , can not run script in browser except ie . want overcome limitations .

you need browser fingerprinting. fingerprintjs can used browser id: fingerprintjs2 check out eff's demo


Comments

Post a Comment

Popular posts from this blog

Sort a complex associative array in PHP -

this question has answer here: php sort array subarray value 5 answers i have associative array in php like: $newarray1 = array ( [producta] => array ( [link] => http://sanjosespartan.com/blog/products/agile-java-development/ [visitcount] => 4 ) [productd] => array ( [link] => http://sanjosespartan.com/blog/products/intro-to-go/ [visitcount] => 1 ) [productg] => array ( [link] => http://sanjosespartan.com/blog/products/node-js-for-developers/ [visitcount] => 1 ) [productb] => array ( [link] => http://sanjosespartan.com/blog/products/beginning-mysql/ [visitcount] => 1 ) [productc] => array ( [link] => http://sanjosespartan.com/blog/products/computer-networks/ [visitcount] => 1 ) ...
Read more

vb.net - How to ignore if a cell is empty nothing -

how use roscolor() ignore value (like empty cell) ? color row if value upper 5 when there nothing in cell, want ignore roscolor() apply, how? public sub roscolor() integer = 0 quotedatagridview1.rows.count() - 1 step +1 dim val integer val = quotedatagridview1.rows(i).cells(3).value if val = vbempty quotedatagridview1.rows(i).defaultcellstyle.backcolor = color.white elseif val < 5 quotedatagridview1.rows(i).defaultcellstyle.backcolor = color.red elseif val > 5 , val < 10 quotedatagridview1.rows(i).defaultcellstyle.backcolor = color.lightyellow end if next end sub you can check empty value following public sub roscolor() integer = 0 quotedatagridview1.rows.count() - 1 step +1 dim val = quotedatagridview1.rows(i).cells(3).value if isdbnull(val) or val nothing quotedatagridview1.rows(i).defaultcellstyle.backcolor = color.white ...
Read more

recursion - Can every recursive algorithm be improved with dynamic programming? -

i first year undergraduate csc student looking competitive programming. recursion involves defining , solving sub problems. understand, top down dynamic programming (dp) involves memoizing solutions sub problems reduce time complexity of algorithm. can top down dp used improve efficiency of every recursive algorithm overlapping sub problems? dp fail work , how can identify this? the short answer is: yes. however, there constraints. obvious 1 recursive calls must overlap. i.e. during execution of algorithm, recursive function must called multiple times same parameters. lets truncate recursion tree memoization. can use memoization reduce number of calls. however, reduction of calls comes price. need store results somewhere. next obvious constraint need have enough memory. comes not-so obvious constraint. memory access requires time. first need find result stored , maybe copy location. in cases, might faster let recursion calculate result instead of loading somewher...
Read more