Make Encrypted String Same Length As Input String?
Nov 24, 2010
I have a 15 digit string to encrypt.
I have tried using .NET's various encryption functions but all my encrypted strings are at least 24, 28 or 32 in length.
I have heard of CipherMode.CTS with Padding = None that produces the same length output as the input length but I can't seem to get the same result. I have toyed with the block-size, key-size and salt size.
I don't mind adding a digit to my input string to make it 16 in length.
i have created a encrypted string to match with a target string to pass it along with client URL for authentication. it doesn't match. here is an algorithm used to create a encrypted string.
This is my first class ever buildt (I am a real beginner) in C#. My aim is to "Sanitize a string". The class should do: trim an input make the first letter upper case. Is there a way to better code it? Would it make sense to use a PARAMETER for a method like: CapitalizeFirstLetterTrim(string x) when I initiate an object I need write a lot of code like below, any other way to make it shorter?
UserInputSanitizer myInput = new UserInputSanitizer(); myInput.Input = " ciao world"; string ouput = myInput.CapitalizeFirstLetterTrim(); Useful resource http://msdn.microsoft.com/en-us/library/bb311042.aspx ----------- CLASS using System; using System.Collections.Generic; using System.Linq; using System.Web; namespace WebProject.Core.Utilities { public class UserInputSanitizer { // Backing variables private string _input; // Properties public string Input { set { _input = value; } } private string _output; // Backing variables // Properties public string Output { get { return _output; } } public string CapitalizeFirstLetterTrim() { // Trim _input.Trim(); // Make First letter UpperCase and the rest levae lower case _output = _input.Substring(0, 1).ToUpper() + _input.Substring(1); return Output; } } }
//Read string contents using stream reader and convert html to parsed conent var parsedHtmlElements = HTMLWorker.ParseToList(new StringReader(contents), null); //Get each array values from parsed elements and add to the PDF document foreach (var htmlElement in parsedHtmlElements) pdfDoc.Add(htmlElement as IElement); //Close your PDF pdfDoc.Close(); Response.ContentType = "application/pdf"; //Set default file Name as current datetime Response.AddHeader("content-disposition",
[Code] ....
Error: Input string was not in a correct format. Contents in html file giving error ...
I encrypt and decrypt a string with a private key and following functions. so I encrypt a string with Encrypt function and decrypt the encrypted string with decrypt function. If someone can change the encrypted string and then it decrypts with decrypt function, the decrypted string isn't equal to plain text before encrypting. I want to know how can I check is decrypted string equals to plain text before encrypting?
How to run asp.net application with encrypted web.config ,is it possible note that ASP.NET application have a database with encrypted connectionstring and a "cannot read connection string " message is generated
System.ArgumentException:Keyword not supported: 'eF8w9r2UJOsk0Ps3pxmV7/Fy/xPR2hN2S7BrC1iOYNnAUaI8AqkSm5bw7r+ta4sePWSV9t/3Spnpz6wsFpvMmcppNpqM5Zk7iiDqWVgIV4k='.
Line 46: string[] roleNames; Line 47: roleNames = Roles.GetAllRoles();
Passing onto a stored procedure a value from a GridView. The particular fields are a date type, and numeric type. Problem is, its plausible and conceivable in this case one or both could be null or empty.
Through searching I've seen suggested such ideas as Convert.ToDate(value), CDate(value), and so on. None of these work. You cannot convert an empty string or null value to a date. I don't know about the numeric value.
So, barring any non-working examples already given. What is standard. Its not like I've stumbled across some never afore seen problem.
Here is my code, but its quite typical.
Dim txtctlHireDate As TextBox = CType(gvEvaluatees.Rows(e.RowIndex).FindControl("txtHireDate"), TextBox) Dim txtctlGradYear As TextBox = CType(gvEvaluatees.Rows(e.RowIndex).FindControl("txtGradYear"), TextBox) Dim txtctlBU As TextBox = CType(gvEvaluatees.Rows(e.RowIndex).FindControl("txtBU"), TextBox) Dim ddlctlEvalGroups As DropDownList = CType(gvEvaluatees.Rows(e.RowIndex).FindControl("ddlEvalGroupSelection"), DropDownList) Dim chkctlActive As CheckBox = CType(gvEvaluatees.Rows(e.RowIndex).FindControl("chkActive"), CheckBox) UpdateEvaluatees.MGEvalUpdateEvaluatee(gvEvaluatees.DataKeys(0).Value, txtctlHireDate.Text, txtctlGradYear.Text, txtctlBU.Text,ddlctlEvalGroups.SelectedValue, chkctlActive.Checked) gvEvaluatees.EditIndex = -1 gvEvaluatees.DataSource = EvaluateesForDataGrid.GetData gvEvaluatees.DataBind()
I've bolded the parameters in question. A date value and numeric value are expected.
I want to modify my userAvailabilityCheck code and want to add the code that this userAvailabilityCheck function does not fire If the textbox is null or having character less than 6 but display related error message.
Below is my code-
[Code]....
As you can see in the above code, I have added if else code in my working code but after the addition of these checkers my code stops working.
i have 100 words in paragraph now i want to make array which contain 10 words in each array slot but not break words mean "Hello" in one slot would be "hel" and in second slot rest of word "lo".
I'm using ASP.NET with sql-server. I have an area where the user can enter text of a maximum amount. I encode this text as a good measure but the encoded length can be greater than this maximum amount when I try to insert it into the database.
Special characters are encoded on 3 characters. I can't show the user that he has exceeded the max amount of characters because from his perspective he hasn't. I also can't set the database field to the worst case scenario (being 3 times my max amount).
I'm using the following code to get a list of sites from a database and then show a short extract from the posts. The number of posts shown and the length of the extract is defined in the appsettings of the web.config.
[Code]....
I get the following error:
Index and length must refer to a location within the string. Parameter name: length
I'm bulding document-from-template engine. At certain points I need to match on Reg Exp groups and replace template text with content from a db.
I 'hardcoded' my RegExp initially, doing something like: Regex r = new Regex(@"{DocSectionToggle::(?<ColumnName>w+)::(?<ResponseValue>.+)}[[(?<SectionContent>.+)]]", RegexOptions.Multiline);
it does group capture, so the syntax isn't the prettiest.
Just to make things neater and because I want' to keep the patterns in web.config or elsewhere, I've 'evolved' algorithm to something like:
[code]...
But I'm getting an error: 'Input string was not in correct format'.
I am exporting a HTML table to excel by sending the data as a HTML Table string and setting the content headers:
[code]....
Is there a simple way of setting the content-length based on the size of the HTML string? Or should I just leave it blank anyway...would be nice to have the content-length ideally...
I need to limit the length of the string that load into a DataTable that is being used to display. The data I am loading is coming from another DataTable. How do I shorten row["CG_GalleryName"] contents to 24 characters.
Convert.ToString(row["CG_GalleryName"]) -- how do I set this length to 24 characters? Using it in the below code.
I have a label control in datalist. When thw word is long, the text of label corrupts the design. Label hasn't a multiline property.I tried different ways . I tried to use textbox like a label but this time I can't give a link to textbox.I tried to use MeasureString() method for the label. But I couldn't do it.
