.NET: How To Implement "Hashes"
Feb 25, 2010In some programming languages, hashes are a simple concept:You give a "keyword" and the hash will return a "value".ues etc...I want to do something similar for my application:
View 2 Replies
ADVERTISEMENT
Different MD5 Hashes For .net And Java?
Sep 26, 2011`I want to encode my string using .net and pass it to a java program. I am using the same program for encryption and decryption on both the sides. But the java program and .net programs are returning different MD5 hash codes.Here are the codes for both my programs :
VB.net
md5Provider = New MD5CryptoServiceProvider()
input = UTF8Encoding.UTF8.GetBytes(sSecurityKey)
oHash = oMd5CryptoServiceProvider.ComputeHash(input)[code]....
The problem is that m.digest() from java and oHash from vb.net are different. So i cant go further with DES encryption.
Make A Database Of MD5 Hashes?
Jun 26, 2010I'm trying to make a database of MD5 hashes (just for myself). I save the MD5 + Passwords in a .text file.
This is my code so far :
[Code]...
Pass Arrays Hashes To VBA Via COM?
May 6, 2012I am currently trying to pass an array of objects as a result to VBA but Excel is complaining the following:
'Function or interface marked as restricted, or the function uses an automation type not supported in Visual Basic.'
I have looked around on the internet and have seen similar issues but not to one I am trying to do.
My function is declared as follows:
<ComClass(Class1.ClassId, Class1.InterfaceId, Class1.EventsId)> _
Public Class Class1
#Region "COM GUIDs"
...
[Code]....
VBA is complaining about the System.Objects my question is how the heck are you supposed to pass and return arrays from .NET to VBA. Also the data that will be in the ArrayRes() is mixed type, its not just strings etc, its an array of arrays that can contain strings, integers doubles etc.
I chose VB .NET because I assumed it would be possible to map to VBA easier.
One last thing, if System.Object and Arrays in VB .NET is not the way, ie maybe theres another way via collections or lists, then Im open to that. I just need to get this data into VBA. Also I could move over to C# if needs be.
VS 2008 Md5 - Make A Database Of MD5 Hashes
Jun 26, 2010I'm trying to make a database of MD5 hashes (just for myself). I save the MD5 + Passwords in a .text file. But how can I if the two MD5' are the same, load the password out the .txt file? To read the .txt file I had something like this :
[Code]...
Compare Input Hashes Against Generated String?
Oct 15, 2011I need VB code to compare an input MD5 hash string against a generated string. The generated string is a salted text string plus an integer 1-1000
View 3 RepliesVS 2008 Design A Program That Calculates Hashes Of Files?
Apr 16, 2009Okay, that's not a big deal... I'll implement FileStreams and read bytes performing operations on them. The problem is that if I do this, the program will hang until the hashes have all been calculated. I want the program to show the hashes calculated so far and a progress bar. I know I need to implement this using threads and interrupts, but how, P.S. Any example code, simply for showing the progress of any operation, and involving a thread,
View 1 RepliesImplement Something In VB?
Mar 14, 2011How to implement such a feature in vb.net??
View 3 RepliesImplement WCF In VB?
Apr 5, 2012We have a vb.net application where we have implemented multithreading. We determined that we need to either implement .net remoting or WCF. After researching remoting in .NET on MSDN, Microsoft considers remoting legacy for .NET framework 4.0 and recommends using WCF instead. My question is: can we implement WCF functionality into our VB.NET application or do we need to rewrite the app from the ground up in WCF?
View 1 RepliesImplement Threading In App?
Sep 1, 2010I have a program that I would like to implement using Threading.I wand to load a form that takes a couple of minutes to open using threading.Here is my code
Imports System.Threading
Public Class frmAdjustments
Function LaunchForm() As Integer[code].....
I am new to .net programming and could use any suggestions you may have. I'm trying to grasp the concept of multithreading apps and would like to have both my main form (Adjustments) and the (frmNewAdjustments) form to load concurrently.Here is the error I receive with the code above: Overload resolution failed because no accessible 'New' can be called with these arguments:
.net - Implement VB With Statement In C#?
Sep 3, 2010How would you create an extension method which enables me to do the following (warning: exteme pseudo-code)...
class FooBar
{
Int32 Foo { get; set; }
String Bar { get; set; }
}
new FooBar().With(fb => new Func<FooBar, Object>(instance =>
[Code]...
C# - How To Implement Of A Generic In .net
Mar 13, 2011This is just a Translation question. But how do you write a the following C# code in vb.net My problem is that i don't know how to rewrite the this part of the generic T. C# code i want to translate
public static void ShouldEqual<T>(this T actualValue, T expectedValue) {Assert.AreEqual(expectedValue, actualValue); }
[Code]...
C# - How To Implement Tracing In .net
Aug 7, 2009I am implementing a tracing mechanism myself. Now what I'd like to know is what is the best way to implement this mechanism(I mean, the architecture).[code]But then I saw there is an TraceListener class that let's me implement Write and WriteLine methods. The big drawback is that both those methods allow only strings as arguments, and I'd want to be able to send a lot more info than strings. What should I do? Maybe my first ideia is the best?I do know there are a lot of tracing mechanisms like PostSharp and so, I'm just doing this for learning purposes!
View 1 RepliesC# - Implement A Bitboard In .NET?
Mar 9, 2012My Questions are: Is is possible to implement a bitboard in vb.net? Tutorial/Reference to do bitboard in VB?
C# answers are acceptable because it's not that hard to translate.
C# - Implement The Equivalent Of SQL IN() Using .net?
Aug 4, 2010In .net (c# or vb) expressions, how would you implement SQL's handy IN() functionality?i.e. value in (1, 2, 4, 7)rather than:
value = 1 or value = 2 or value = 4 or value = 7
There are obviously many ways, I'm looking for the most clean and simple!
C# - When Should Implement IDisposable
Mar 12, 2010What is the best practice for when to implement IDisposable? Is the best rule of thumb to implement it if you have one managed object in the class, or does it depend if the object was created in the class or just passed in? Should I also do it for classes with no managed objects at all?
View 6 RepliesCan't Implement The Interface
Aug 7, 2009I am trying to implement an interface defined in IDL, in a vb.net class here is the idl
interface IEmissaryRoot : IDispatch {
id(0x68030000), propget]
out, retval] IActivityCol** );
[code]....
DirectCast How To Implement
Jan 14, 2012i am using code to the value textbox2.text in the report and using the code like below [code]the textbox2 take various values in run time but when i run the code it display only the final value intermediated values are not displayed the whole situation is as follows.[code]
View 1 RepliesHow To Implement A Regex
Aug 12, 2011I would like to use regex for a txt file as follows. What I want to do is to get the whole text if CRC is other than 00000000. The content of the file below has 2 blocks of data below. And I should get the second one after the regex operation.
[Code]...
How To Implement Blowfish
Jun 18, 2010I guess Blowfish is not included in .net class library.how to implement it,,there are any sample code.? ive already try but still have a trouble to encrypt data without padding. [code] the original source from schneier that implement with vb6 we can encrypt data with or without padding.its mean we can encrypt data in 1 block that contents less than 8 bytes.
View 8 RepliesHow To Implement Blowfish In VB 6
Feb 26, 2010How to implement Blowfish in VB 6 and VB.net
View 1 RepliesHow To Implement DLLGetVer
Jun 19, 2010how to implement DLLGetVer written in vb.net? I currently have tried the following code but when I try the fucntion, I get Unable to find an entry point named 'DLLGetVersion' in DLL 'msi.dll'.
[Code]...
How To Implement Dos Printing
Nov 23, 2010how to implement dos printing from vb.net?
View 1 RepliesHow To Implement Next Vbs Code in C#
May 31, 2010How can I implement the next vbs code in C#:[code]
View 11 RepliesHow To Implement Truncate To A Row
Jun 22, 2010[TEX]Hello[/TEX] How do i use truncate in vb 2008?my database its in Access and i want to implement a truncate table in vb but i don't know how to do it.
View 1 RepliesHow To Implement Typedef
Apr 22, 2010Can anyone help me with a way to implement typedef in vb2010, because I see it helpfull way to define types.
View 2 RepliesHow To Use And Implement An Interface
Jul 25, 2010I'm trying to assign a datasource to a ComboBox control during runtime. When I do so, I get the attached message. [Code] I want to learn how to use an Interface. The error message is suggesting using an IList. How would I do this.
View 2 RepliesImplement LinkedIN API By Using C#?
Jun 8, 2011Is there any way to implement LinkedIN API by using C#,VB.NET.We need to call profile , companies ,Jobs etc API of linked in using mentioned technologies.
View 4 RepliesImplement Map Function In .NET?
Feb 1, 2012I am trying to implement map function in VB.NET and I have tried the below.
Function Map(a,f)
Dim i
for each i in a
f(i)
[code].....
But the above code is not working and saying alert is not declared.
Implement Murmurhash3 In VB?
Mar 10, 2012I'm trying to implement murmurhash3 in vb.net and trying to convert from this C# implementation first part of the function in c#
public static SqlInt32 MurmurHash3(SqlBinary data)
{
const UInt32 c1 = 0xcc9e2d51;
const UInt32 c2 = 0x1b873593;
[code].....
Throws error Arithmetic operation resulted in an overflow.I'm Not sure how to do the Get four bytes from the input into an UInt32 part if that is the problem or is it related to something else since there are some differences in bitwise operations between C# and VB.