everything works well except sth ... for example with my coding and snitz sha coding password1254sdsas gives the same result ...
But if a turkish character included it changes ...
For example snitz coding password : caným result is : 9fbb8eea2fab7f150a182340b57c1b3b24d4e061089e6e811af3900c2092adb0
result with mine : a17d9c1ae955bfd988900353efbd7b482d1644d55e04a034f1aa7ceb768e936d
as you see they are absolutely different ...a turkish character gives the exact change ... I am pasting my codes below Let me remind , I am coding vith asp.net (Vb.net)
Dim txtaktivasyon As String Dim stranahtar as string = passfield.text.tostring() Dim HashValue() As Byte Dim UE As New System.Text.UTF7Encoding Dim ContentBytes As Byte() Dim oSHA As New SHA256Managed ContentBytes = UE.GetBytes(stranahtar) HashValue = oSHA.ComputeHash(ContentBytes) For Each chars As Byte In HashValue If Len(Hex(chars).ToString) = 1 Then txtaktivasyon &= "0" & Hex(chars).ToString response.write( Hex(chars).ToString) Else txtaktivasyon &= Hex(chars).ToString<
Well , I decided to try some combinations for a password which is saldýray1983
I think snitz sha coding changes the turkish letters to another character (or characters) and codes according to this ...
Here are the combinations of my tries but It seems snitz doesn't Upper or lowercases those characters ..::snitz:: 1720c4894971339393c2b4bf1677df82522e58e7b44ad7d47f95f68206d674b9 saldýray1983 ............
Snitz doesn't oficially support the Turkish language. You won't find which character ý is changed to. The simplest way to get Snitz & your code to produce the same result would be to replace those characters causing the problem in the password before they are encrypted in both your code and Snitz's sha function.
sorry for late posting podge ... Thanks for your reply ... So as I have understood turkish characters are converted to some characters and thoose characters are being converted to smilar characters ..
For ex : ý >> #253; >> y
replacing ý to y works great :)
But there are some more characters and I dont know which they are smilar to
for ex : ð >> #240; >> ? þ >> #254; >> ?
those two characters are smilar to what , or how can I find an information ... I searched google but couln't find an answer ... can you give me some keywords to search or do you know the way ?
Thanks podge , I have decided to open a new form for users to change their passwords . By using "forgot password" area ,the users are updating their passwords with non turkish including ones ... I couln't find a professional way to solve , but this is no matter ...<
sha256 turkish character problem (Podge)
Posted - 24 September 2005 : 17:12:50
