I desperately need this VB.NET code converted to PHP.This is the Instructions I received:To test your encryption, encrypt the following word with these keys and check if you get the same result:
Text to encrypt: MyPassword
Salt key: *&^%$#@!
PBE Key: FWV70700[code].....
I've seen a lot of threads on the web discussing about which encryption algorithm is better.According to what I've read, AES encryption algorithm is based on Rijndael's algorithm, and the first is the one being implemented by the US's government to secure TOP SECRET files.From what I've tried RijndaelManaged only supports 128bit long keys (that would be a byte array with 16 byte values, right?) and not 256 as I had first thought; however, AES seems to support 256bit keys (or is it all the way around?), I haven't personally tried DES nor TripleDES.
So, which one is better or more secure? And what's up with asymmetrical encryption? What's the difference? Can both symmetrical and asymmetrical encryption be used for the same thing?
I'm trying to find a simple and easy encryption/decryption method for strings. The strings will contain spaces, special characters, numbers, and letters. I just need to be able to encrypt/decrypt them.
View 3 Repliesi'm using the following algorithm to encrypt and decrypt a string in VB.NET and wanted to do that same method in Android also.
Encryption:
Private Function decryptStr(ByVal key As String, ByVal enc As String) As String
Try
DES.Key = Hash.ComputeHash(System.Text.ASCIIEncoding.ASCII.GetBytes(key))
[Code]....
Suppose:i Have Two text Box One for For Typing & second for Replacement of TextI want to Replace Text With Following:
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I am trying to convert a method in C# to VB, but am finding it impossible.the C# code is
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I have set up a method in vb.net and in xcode for encrypting a string using as far as i can tell the same parameters for an AES encryption.I've looked all over the place but cannot find information on whether they use the same encryption algorithm and settings.
this is the vb.net code:
Dim encryptAES As New AesCryptoServiceProvider()
Dim encoding As New UTF8Encoding()
Dim encryptor As ICryptoTransform
encryptAES.Key = encoding.GetBytes("12345678901234567890123456789032")
encryptAES.IV = encoding.GetBytes("1234567890123416")
encryptAES.Mode = CipherMode.CBC
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I have the following in C#: public static void StartAnimation(UIElement animatableElement, DependencyProperty dependencyProperty, double toValue, double animationDurationSeconds, EventHandler completedEvent)
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public static string CalculateSHA1(string text, Encoding enc)
{
byte[] buffer = enc.GetBytes(text);
SHA1CryptoServiceProvider cryptoTransformSHA1 = new SHA1CryptoServiceProvider();
[code]....
VStudio keeps yelling at me for just what I have so far most specifically the bracket at the end of Byte?:
Private Sub CalculateSHA1(ByVal text As String, ByVal enc As Encoding)
Dim buffer As Byte[] = enc.GetBytes(text);
End Sub
I've been trying to figure out how to do this for some time now and keep coming up short, so I'm hoping to get some good suggestions.
I'm making an application that will allow the user to add some labels during runtime, edit their text, and then 'build' the designer that would output code for a scripting language.
The people using this app are creating the scripts using Notepad++ at the moment, but aren't developers in any way and would like an easier, point and click method.[code]...
i want to extend the integer class to a method that increments current integer value by 2. I create a console application and a second module which contains the extension method.
Imports System.Runtime.CompilerServices
Module StringExtensions
<Extension()>
[code]....
and everything works fine. The extension method module can be imported to any other project (Project-->add existing item --> select the vb file that contains the extension method module) and works fine too. But the code is accessible to other users. Is there a method to convert the extension method module to a dll and adding it to other projects as a reference. I tried to do it with creating a class project and pasting the code of the extension method module and compile the dll and then added it as reference to another project and imported the class with the keyword imports, but it didn't work.
Is there a Visual Basic.NET method that can convert method parameters into an array?[code]...
View 2 RepliesHow would you convert this to VB (using .NET 4.0 / VS2010) ?
bw.DoWork += (o, args) =>
{
Code Here
};
I thought maybe like this:
AddHandler bw.DoWork,
Function(o, args)[code]....
But it says Function does not return a value on all code paths.
I have some files in vb.net that have "Option Strict Off" to allow for bad programming. When I convert to c# I use "dynamic" until I come back and fix problems, and this works in all cases But now I have this code:
Public Class ContractResults
'Big class definition
Public Shared Sub CleanCache()
[code].....
And in a file with Option Strict Off:
Public Sub VerifyResults(result as Object)
'Here, result is normally ContractResults
'first it check for that then call this:
result.CleanCache()
End Sub
In c# I use "dynamic", but a runtime error pops up when I call "static" method with dynamic reference. In vb.net, I can called "shared" sub from instance, but in c# this is not allowed
Exception:
"Microsoft.CSharp.RuntimeBinder.RuntimeBinderException"
"Member 'ContractTypes.ContractResults.CleanCache()' cannot be accessed with an instance reference; qualify it with a type name instead"
It seems I must convert code to use actual type, but then this means much rewriting of more parts. Is anyone able to show another way?I want to make sure you do not think I can use (result as ContractResults).CleanCache();Because all types that may be passed in have "CleanCache()" method, but do not inherits from anything the same other than "Object". There are many types (30!) that have this "static" method and so that is why it uses Option Strict Off?
I am stuck trying to convert code that works in C to VB. The C code is:internal IEnumerable<GraphicsBase> Selection
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I have read the stuff about how this has to be done in VB using GetEnumerator method, but I just can't seem to get it to work.
Consider a MyForm class that contains a shadowed implementation of Show(). It also contains a CreateForm() method, which accepts an instance of the form and calls the shadowed sub:
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explain what is the difference between IsDbnull() method and convert.isDbNull(). Can you explain how do we implement both these methods with the of examples
View 1 RepliesI decided to to convert my excel macro in a exe file using visual studio 2010. In excel macro method find is present like this:
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is there anyway that I can convert this to use RSA encryption?
Imports System.Text
Imports System.Security.Cryptography
Imports System.IO
Public Class ClsEncryption
[code].....
I have been trying to create an app that will do xor encryption. I have tried a few different functions but none of them seem to give me what I want. I need it to put the coded text into a 7 bit ascii string. For example if the key was a - 1100001 and the text to be encrypted was s - 1110011 then it would return 0010010 as the encryption. One of the pieces of code I tried to use
Public Function XOREncryption(ByVal CodeKey As String, ByVal DataIn As String) As String
Dim lonDataPtr As Long
Dim strDataOut As String
Dim temp As Integer
[code]....
This returns a hex digit though which will not work for what I want.
have made a library for my vb.net project by combining 3 libraries (using ilmerge).
View 3 RepliesI am attempting to create a program that can do raw RSA encryption (performing the encryption without using 'Encrypt' and 'Decrypt') of a user's message that can contain a-z, A-Z, 0-9, and [,.;:'"()]. I've attached a screen shot of the application form.
Basically, the user will pick from a list of prime numbers from the first box and input them into p and q. They will type their message in the designated textbox and then hit <encrypt> which will encrypt using p and q and then show the encrypted message below. I'll leave out the Key box since that deals with the math behind the encryption.
The part I am stuck on right now is assigning a number to each one of the characters so that it can be encrypted. These numbers need to remain the same so that the message can be decrypted as well.
Does calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?
View 5 RepliesI have a large problem with inheritance in vb.net. The problem is the following:
I have 2 forms => frmBase and frmChild
In frmBase i want to create a method Called StartWorking() and i want frmChild to inherit this method.
But here is the tricky thing: when frmChild.StartWorking is called i would like the following => without calling MyBase.StartWorking()
I want frmBase.StartWorking() to be executed first and after a test in frmBase.StartWorking if blnValue is true then frmChild.StartWorking has to be activated. if blnValue is false that frmChild.StartWorking cannot be activated.
I have nine pictures that I need to animate -I need to use the ToString method and a counter to concatenate a file name into a string variable from the Image.FromFile method. Once the counter reaches its maximum value, and the last picture is displayed, the counter should be reset to zero or one depending on how the first image file has been name. Also a static counter variable should be incremented in the time routine. what I have so far -- I know what I have to do; however, I just do not know how to code this properly.. Right now I have this going thru a button procedure but it needs to go through a timer.
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Write an overload for every numeric type or if possible constrain a generic extension method to just numeric types.
View 2 RepliesI just need to know what is the slight difference between them so I know which one to use everytime.
View 5 RepliesI will try to explain what I need.Let's say that I have a class like this:
Public Class Example1 Public Sub ToBeCalled()
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When I am loading an Assembly dynamically, then calling a method from it, I appear to be getting the method from Assembly executing before the code in the method that is calling it.It does not appear to be executing in a Serial manner as I would expect. Can anyone shine some light on why this might be happening. Below is some code to illustrate what I am seeing, the code from the some.dll assembly calls a method named PerformLookup. For testing I put a similar MessageBox type output with "PerformLookup Time: " as the text. What I end up seeing is:
First: "PerformLookup Time: 40:842"
Second: "initIndex Time: 45:873"
Imports System
[code].....
i have this .xml file read and display at runtime by vb.net2003. the .xml file is the database which contain various data and its not for adding more data or edited by user so i need to protect the file so that my code can read and display those data. can anyone know how to protect the file.
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