473,748 Members | 2,167 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

Err msg : "Invalid character in a Base-64 string"

how can I find which character is invalid in base-64 string ?
Mar 21 '06 #1
2 9403
Not sure why do you want it but have a guess.

Are you having an errors when you have InvalidView state?

The problem is that if you have a web site on the internet there are plenty
of robots that walking around and trying to fill the <form> with spam
messages hopping it will be forwarded to email address. Thus get the spam to
the end user.

The ASP.NET detects that because those robots are changing the hidden fields
too. And the ViewState stops being valid anymore.

So in plain words i would not worry about those errors..

George.
"Jon Paal" <Jon[ nospam ]Paal @ everywhere dot com> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
how can I find which character is invalid in base-64 string ?

Mar 21 '06 #2
for base64 the valid charset is:

ABCDEFGHIJKLMNO PQRSTUVWXYZabcd efghijklmnopqrs tuvwxyz01234567 89+/

the = is used as filler for the last bytes, as the length must be mulitple
of 3

-- bruce (sqlwork.com)


"Jon Paal" <Jon[ nospam ]Paal @ everywhere dot com> wrote in message
news:%2******** ********@TK2MSF TNGP14.phx.gbl. ..
how can I find which character is invalid in base-64 string ?

Mar 21 '06 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

11
2100
by: Joseph Turian | last post by:
Fellow hackers, I have a class BuildNode that inherits from class Node. Similarly, I have a class BuildTree that inherits from class Tree. Tree includes a member variable: vector<Node> nodes; // For clarity, let this be "orig_nodes" BuildTree includes a member variable:
0
1791
by: muesliflakes | last post by:
I have tried to build an Installation Project for to different applications. Both are simple. Steps Taken: * Add New Setup Project to the solution * Set the project out to the application project (Active) * Build Installation Project When I try to run the setup.msi, a MessageBox comes up saying "The
0
457
by: Keith Smith | last post by:
When I create a setup file (MSI) for my app, I get the following error when I try to run the MSI file... The folder path '.' contains an invalid character Does anyone know a solution to this? I have looked on Google and have not found an answer.
6
1808
by: Lucvdv | last post by:
In a sorted list, certain characters are grouped together, for example "Áb" (cedille b) comes after "ca" but before "cc". Is there a built-in way to find out what 'base character', such as C for cedille, a character belongs to for a given globalization setting?
2
1717
by: Wade | last post by:
Hi all, We have created some "Base" class pages for our WebForms and UserControls. For instance, when we create a WebForm called "WebForm1.aspx", instead of inheriting from "System.Web.UI.Page" we implement from our "Base" class page which itself inherits from "System.Web.UI.Page" -- I know, pretty standard. We do the same with our UserControls, instead they inherit from "System.Web.UI.UserControl". Now, there are some methods that we...
7
2249
by: relient | last post by:
Question: Why can't you access a private inherited field from a base class in a derived class? I have a *theory* of how this works, of which, I'm not completely sure of but makes logical sense to me. So, I'm here for an answer (more of a confirmation), hopefully. First let me say that I know people keep saying; it doesn't work because the member "is a private". I believe there's more to it than just simply that... Theory: You inherit,...
8
6302
by: lawrence k | last post by:
I've installed Apache 1.3.36 on my Redhat EL 3 machine. Now I'm trying to install PHP 5.1.4. I can not get the ./configure command to work. I keep getting this error: configure: error: Invalid Apache directory - unable to find httpd.h under /usr/local/apache/include So then I run this command: find / -name httpd.h
1
2723
by: DCC700 | last post by:
After upgrading a web application from VS 2003 to 2005 there is a page where any control event that should cause a postback instead generates an Invalid character error on the page. For example a drop down list is set to AutoPostBack, and for OnSelectedIndexChanged should update the values of other drop down lists. This page works fine in VS 2003, and the other pages with similar controls are posting back fine in 2005. Has anyone else...
1
8031
by: Java Guy | last post by:
I'm trying to view a web page. IE tells me there are (Java?) errors on the page. Here they are: Line: 15 Char: 7 Error: Wrong number of arguments or invalid propert assignment Code: 0 URL: http://(address.of.my.webcam):port/LiveView.html and
0
1252
by: r.battistoni | last post by:
Hy to everyone I have created a simple SAX parser for a very simple XML file. When I run the code that follows I get this error: "Invalid hexadecimal character reference" The strange thing is If I change the "chunk size" for the data I send to the parser, the error row changes. This behaviour is very strange!
0
8982
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, weíll explore What is ONU, What Is Router, ONU & Routerís main usage, and What is the difference between ONU and Router. Letís take a closer look ! Part I. Meaning of...
0
9357
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
9309
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9234
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
1
6792
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Duprť who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6072
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4591
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
3298
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2774
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.