I have a HyperLink column in a gridview that when clicked should navigate the user to another page. I pass parameters to the page using a querystring. i want to encrypte the querystring when it passed to another page
I'm teaching myself ASP.net. I'm creating an application that needs to store sensitive data. So, I found the following Blog to encrypt and decrypt data.
I'm sure it's my app, but I wanted to make sure I'm not missing anything obvious. For some reason, my app and Encryptor only works when I pass < then 7 characters. If a pass 8, it doesn't commit to the database. If I remove Encryptor, the app will store
I have looked for ideas on this and read several posts but none of them seems to be because the problem is that web.com (my host) doesnt allow us to update web.config on their server programmatically. I can use example codes and encrypt them on my local pc but heres the error i get when I run them on the live site:
An error occurred loading a configuration file: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=184.108.40.206, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (machine.config)
am working on a new site and i want to do tothings for security1. I want to encrypt the password of the user who register on my site and also decrypt it to enable him in login again.2. I will make an online exams so I want to disable the user functions to hack the exams materials such as (print page, print screen , or even selecting data manual by mouse )I googled a lot about this matter I found java scripts to make this but what about the users who will disable scripts on their browsers. So I want to do this with C# Code.
I have the following string stored in a char column of sql server (there are several this one is just an example):
I also have the key used to generate the string:
And I found the following solution to decryp and encrypt:
Code: Dim des As New TripleDESCryptoServiceProvider Dim md5 As New MD5CryptoServiceProvider 'hash function Function md5hash(value As String) As Byte() Return md5.ComputeHash(ASCIIEncoding.ASCII.GetBytes(value)) End Function
It works like a charm when i encrypt and decrypt values set by me in the page;
But when i use the value stored in the DB it throws the following error;
"An exception of type 'System.Security.Cryptography.CryptographicException' occurred in mscorlib.dll but was not handled in user code
Additional information: Bad Data."
I am i using the wrong crypto class ? it's a length issue? the string is not base64?
I am fetching some data from Db and displaying it in a textarea using jquery in the following way.$('#textareatest').val('<% =teststring %>').It is possible that the string 'teststring' can contain XHTML line breaks(<br/>).whenever the string contains <br/> I am getting the 'unterminated string literal' error.I saw a number of posts considering '' as line breaks and suggesting to escape it.I tried to escape the <br/> similarly,but it didn't work.
I have a URL www.site-address/site-page/page1.aspx?username=deepu&password=deepu how can i change the URL to www.site-address/site-page/page1.aspx?username=232322323232&password=2323232322323 ie i want to encrypt the fields i pass through the URL to encrypt and decrypt the URL in C# using .net,now i am using response.redirect and pass these values as query string...