Php - How To Produce A Different Md5 Hash With Different Encodings
Apr 1, 2011
I am porting over some code from .net (vb) to php and I came across some md5 hashing that I can't reproduce in php. In the .net one there are two functions one uses UTF-8 encoding and the other uses Unicode encoding. The output is a different hash when passed in a string
// First function (returns GUID)
Dim oHasher As Cryptography.MD5 = Cryptography.MD5.Create()
Dim oEncoder As New System.Text.UTF8Encoding()
Dim csData() As Byte
[Code]...
but they both produce the same result. Is it possible to produce the same results in php with md5 hashing?
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Jun 2, 2010
We have a Windows based application whose GUI is in Unicode coding (UTF-16 I believe). But each time I copy a string from a cell of MS Excel 2003 or from Nodepad and paste it to the GUI of our application, the string can not be displayed correctly, just comes out. ( but if you type directly from the keyboard into the GUI, it's fine). I believe it is because the string from Excel or Notepad is one-byte string (maybe UTF-8, I am not sure). What is default encoding in Excel 2003? How can I make it work correctly - change the encoding in Excel or Notepad or some other way?
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Jan 7, 2011
I have an application that gets terms from a DB to run as a list of string terms. The DB table was set up with nvarchar for that column to include all foreign characters. Now in some cases where characters like รค will come through clearly when getting the terms from the DB and even show that way in the table. When importing japanese or arabic characters, all I see are ? Now I have tried converting it using different methods, first converting it into utf8 encoding and then back and also secondly using the httputility.htmlencode which works perfectly when it is these characters but then converts quotes and other stuff which I dont need it to do. Now I accused the db designer that he needs to do something on his part but am I wrong in that the DB should display all these characters and make it easy to just query it and add to my ssearch list. If not is there a consistent way of getting all international characters to display correctly in SQL and VB.net
I know when I have read from text files I just used the Microsoft.visualbasic.textfieldparser reader tool with encoding set to utf8 and this would not be an issue.
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Sep 7, 2011
I want to loop through all the items in the items, but first I must to cast to appropriate type which I fail. [code]
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Nov 16, 2011
I am at a bit of a loss at the moment. What I am basically writing is the password elements of a membership system. What I do is generate a random salt value, take the registered password, combine the two and then pass the new string through a function which will generate a SHAManaged 512 hash.
I then convert the hash and salt string into Byte arrays and store these in my database.The problem comes when I then compare a login attempt against the original value I am being supplied with a completely different hash for the password being presented by the user, even though it should be exactly the same.
Here is my code when someone registers their new account:
[Code]...
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Apr 3, 2012
PrivateSubForm1_Load(ByValsender
AsObject,
ByVale
AsSystem.EventArgs)
[code]....
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Oct 28, 2009
'I am having trouble with the line "senda = suba(sendaobj, EventArgs.Empty)". [code]...
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Aug 25, 2009
Here's the
Sub DestroyUser(ByRef Victomcheck As Integer, ByRef Victorcheck As Integer)
Dim num As Object
WriteSub("destroyuser")
[Code]......
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Jun 10, 2011
i am making a hairstyle and makeup software in vb and i need to upload the picture which will be edited, to put a hairstyle and makeup on. ive no idea how i can do it.. it is a virtual makeover software and i need to produce the before and after images. please someone help me, my deadline is on the 31st
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Aug 3, 2010
[Code]...
The garbage collector in .NET moves objects, so the object's address is not stable. How is Object's GetHashCode() method implemented?
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Dec 1, 2010
I have an openfiledialog, I show the dialog and the user selects there file. How could I calculate the MD5 hash of the OFD.filename/file opened? Or calculate the SHA1, what ever is easiest.
PS: This is in Visual basic 2010 Express.
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Nov 7, 2010
I know MD5 hashes have been asked about 1000+ times, but this question is slightly different.I am looking to find the true MD5 hash of an image, but without using a string for the file's location. I am looking to be able to call on the image inside of a picturebox rather than somewhere on my computer or the internet.
For example, I want to find the MD5 hash of an image inside of my picturebox.
If this doesn't make sense, please ask any questions you may have.
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Aug 22, 2011
Are the following 2 SQL statements the same? Will they produce the same results?
sql1 = "SELECT * FROM [StudentDetials] WHERE ([Subject1] LIKE '" & Subject(0) & "' OR [Subject2] LIKE '" & Subject(0) & "') AND ([Day1] LIKE '" & TabDay & "' OR [Day2] LIKE '" & TabDay & "') AND ([Time1] >= '" & Time(0) & "' AND [ETime1] <= '" & Time(1) & "' OR [Time2] >= '" & Time(0) & "' AND [ETime2] <= '" & Time(1) & "')"
sql1 = "SELECT * FROM [StudentDetials] WHERE ([Subject1] LIKE '" & Subject(0) & "' AND [Day1] LIKE '" & TabDay & "' AND [Time1] >= '" & Time(0) & "' AND [ETime1] <= '" & Time(1) & "') OR ([Subject2] LIKE '" & Subject(0) & "' AND [Day2] LIKE '" & TabDay & "' AND [Time2] >= '" & Time(0) & "' AND [ETime2] <= '" & Time(1) & "')"
In my case they simply produce the same results but that's because of the data i'm using.
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Dec 23, 2011
I tried to convert following C# code into VB.NET and got "Expression does not produce a value" error while compiling the code
C# Code
return Fluently.Configure().Mappings(m => m.FluentMappings.AddFromAssemblyOf<MyEntityMapping>())
.Database(SQLiteConfiguration.Standard.InMemory().ShowSql())
.ExposeConfiguration(x => new SchemaExport(x).Execute(false, true, false))
.BuildSessionFactory();
VB.NET Code
Return Fluently.Configure() _
.Mappings(Function(m) m.FluentMappings.AddFromAssemblyOf(Of SubscriptionMap)()) _
.Database(SQLiteConfiguration.Standard.InMemory().ShowSql()) _
.ExposeConfiguration(Function(x) New SchemaExport(x).Execute(False, True, False)) _
.BuildSessionFactory()
The error happens on 2nd last line of VB.NET code, while C# code is compiled without problem.What is wrong with the converting?
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Dec 23, 2011
I tried to convert following C# code into VB.NET and got "Expression does not produce a value" error while compiling the code
[Code]...
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Jun 2, 2010
I'm using the below code to produce a ToolTip for each row of a ListView.
When moving vertically across the ListView a ToolTip will appear when the mouse touches between two rows - bypassing any of the ToolTip's options.
Private m_HoveredItem As ListViewItem
Private Sub ListView1_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles lv.MouseMove
[Code].....
I'm not using the ShowItemToolTips property of the ListView because I want to have a more formatted ToolTip (ToolTipIcon, Title etc) I don't believe these options can be set for the ListViews ToolTip?
I've updloaded a sample project of the issue here: [URL].
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May 28, 2009
I have created an program that can produce an XML file from the SQL database.and the code is looks like below:
[Code]....
why is there a <NewDataSet></NewDataSet> node?2. How to remove that node?
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Mar 14, 2009
I am now looking for a way to produce pdf files from xls files. Since the completed programme will be distributed to others, it would have to work on environment without the "pdf producer" I am using.Which is the "pdf producer" to use"?I am now working on the express version of VB 2005 (which does not have crystal report). I have acrobat 8.0 installed but have not figured out how to do that...
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Dec 26, 2010
im creating a simple login / registrate form in visual studio 2008 anplant Hash and salt to my login and registrate forms, im using mysql to connect to a online mysql serverthis is my codes i ahve now
Form 1 - Login
Try
DB_Connect = New MySqlConnection()
[code].....
i really need this working, all works but nothing is encrypted
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Feb 6, 2012
I have a page with a URL that includes a hash value (www.mysite.com/#123).What I want to do is use that value to determine what is displayed on the page - much like using a querystring.I am using the hash value because the content on the page can be changed client side (I am avoiding page reloads where possible) - if the user then links to another page and uses the back button to return, I need to use the hash value to display the page as it was when they left it.So I'm looking for an if statement that will look something like this:
[code]...
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Mar 21, 2009
I would like to write a function GetHashCodeOfList() which returns a hashcode of a list of strings regardless of order. Given 2 lists with the same strings should return the same hashcode.
ArrayList list1 = new ArrayList()
list1.Add("String1");
list1.Add("String2");
[Code].....
I can first sort the list, then combine the sorted list into 1 long string and then call GetHashCode(). However sorting is a slow operation. I can get the hash of each individual string (by calling string.GetHashCode()) in the list, then multiplying all hashes and calling Mod UInt32.MaxValue. For Example: "String1".GetHashCode() * "String2".GetHashCode * ... MOD UInt32.MaxValue. But this results in a number overflow.
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Aug 10, 2009
I'm trying to figure out a way to compare two "salted-hash" strings. How can I do this? I know that the salt is a random generated value that's appended to the plain text, then we just compute the hash of that new string.So how can I compare these two values? O_O (The new hash that the user hash written in a textbox and the hash stored in a database)
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Apr 10, 2012
I have a function in VB.net that returns a password hash. I need to make a web interface to the same database and I'm not sure how to return the same hash in PHP. Does anyone know both languages enough to convert this to PHP?
Code:
Public Function GenerateHash(ByVal SourceText As String) As String
'Create an encoding object to ensure the encoding standard for the source text
Dim Ue As New UnicodeEncoding()
[Code].....
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Oct 1, 2010
I am using the following piece of code (where sId is a Unique Id in our system) to generate Unique Hash value of 16 characters Max in length
Dim oMD5Hash As System.Security.Cryptography.SHA1 = System.Security.Cryptography.SHA1.Create()
Dim sHash As String =
[Code].....
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Jun 7, 2012
I am having issues to hash with sha 1 salted in vb. I have an SMF forum and it uses SHA 1 salted to encrypt its passwords. I want to make a program which is only available to users who have registered in my forum so I have to create a login system in my program. The problem is that how do I hash to SHA 1 salted in vb?I have explained what I want to do a bit more in details below:User opens program >They login using their forum account details >Program hashes the PASSWORD the user has entered to SHA 1 salted >The program then connects with the forum's database and compares the password value > (The Username is checked first tho)
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Dec 18, 2011
The code below allows a user to enter user name and password to log in to enter marks of students. SQL data reader verifies the user credentials from the database before authentication takes place. modify the code by salting and hashing the password.
Dim frm As New MarksEntryFrm
Dim flag As Boolean
flag = False
[Code]....
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Jul 19, 2011
How do I retrieve a hash value when the value itself is an object.I am giving an example here
dim ht as new hastable
dim person as clsperson
ht.add(0, new ("AAA", "16", "23425345")
ht.add(1, new("BBB", "18", "464745756")
[code]....
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May 13, 2010
I noticed that when I build a given C# or VB.NET source to produce a DLL, the binary output is different each time. It would be helpful for our build / deployment process if this was not the case. Can I control this?
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Feb 15, 2010
I am trying to create a custom datasource control.
I have been following this article to the letter (I think...).
I have a skeleton / basic implementation of my datasource, however when I declare it in the markup and try to statically bind it to a gridview, I receive the following error:
The DataSourceID of 'grdVw' must be the ID of a control of type IDataSource
This seems extremely strange to me, since my datasource inherits from DataSourceControl, which in turn implements IDataSource. Even if I explicitly implement IDataSource in my custom datasource, it makes no difference.
My Markup is:
<DataBrokerDataSource ID="objSrcDBroker" runat="server" />
<div>
<asp:GridView ID="grdVw" DataSourceID="objSrcDBroker" DataMember="Table0" runat="server">
[Code].....
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May 1, 2011
Why I cannot get a variable to come in. I keep on getting the error "Expression does not produce a value" for one of my Dims.
Imports System.IO
Public Class Main
Dim image_1 As Integer = Openimg1.FileName
'The line below is the one causing my problem
Dim image_2 As Integer = My.Computer.FileSystem.RenameFile(Openimg1.FileName, "_hid" + System.IO.Path.GetExtension(Openimg1.FileName))
[Code] .....
So basically, how can I create a variable from something that has yet to be created?
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