Encryption For Certain String For 10 Character Output?
Sep 1, 2010Is it possible to encrypt certain string and it output 10 character?.
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Finding String Encryption With Given Input And Output?
Jan 17, 2010I have an input and an output, but i would like to know what how to calculate/find the string encryption in between.
Input: 22ac24c481690dd5d90973c6697624ec
String: ??? Unknown
Output: cc28641637656a42e092b61d3e67af0d
[URL]
Add Space And Other Character In My Encryption Code
Mar 23, 2012I have another project that I have to submit it in a few days my project is about bifid cipher..I already make a code work but the thinks that I frustrated is to add like a space,enter,comma,or other symbol inside my code [code]at my code all the space will be disappear and if a enter in plaintext it will combine..already try to use index to find a space but it only works for the first space..
View 2 RepliesVS 2010 - File Saving - Simple Pseudo-encryption Program That Changes Each Character Into Another
Apr 22, 2011I recently made a simple pseudo-encryption program that changes each character into another. It is capable of encrypting and decrypting a string. This can also be done to any text file as well. The characters range from ASCII 32-254 (This on it's own may be an issue because of #127 being DEL).
Because I believed my own coding may be at fault, I attempted this with Triple Des with identical results.For Triple Des, the requirements for en/decryption was:
Encrypt: String to Byte
Decrypt: Byte to String
And to change them either direction, I used UTF8. I also attempted ASCII and UTF32, but I don't know what I should do. I am considering dropping this but I want to learn problems like this because I am currently in college and haven't started my core classes for programming yet and want the head start.
The point where I have come into a problem is attempting to do this to another file type like an image. I looked at the results from encrypting then decrypting and the results were similar, but it seems file encoding must be the culprit.
Input / Output Methods And Validation (for Secure Coding) - Read/Write DB Encryption ?
May 16, 2011I've been trolling for a long time now and have decided to register as I finally have some time to start jumping into VB. The last time I coded VB, the current version was VB 4. I've been out of programming for a good while now and considered myself a beginner (tutorial example coder haha).
My question is: Where is a good place to start learning VB.NET?
I know it's an often asked and answered question - but let me give you a bit more information so more specialized replies might be given.
I'm in INFOSEC/COMSEC and would like to (eventually) develop a program that contains a DB of information that is read by the application and saves input information into a DB (encrypted) as well. The program will be a 800-53 C&A control assessment program; used for tracking system compliance for federal information systems. I would like to be able to develop such a tool to make my life easier at work instead of using Excel spreadsheets to track everything.
I would like to learn:
- Input / Output methods and validation (for secure coding)
- Read/Write DB Encryption (RSA or other 128-bit) for user input information
- Ability to generate PDF reports from the primary keys and data sets from the above DB
My goal is to create a program that allows a user to install the program, setup a 'master' account that a serial/key has been generated for - that master account is then allowed to create new projects (progress saved in DB). A project asks the user certain questions pertaining to information systems and takes the input and saves it into the DB (encrypted). When the assessment is completed, I would like the program to be able to generate a PDF report from the DB (from a layout template I created).
VS 2008 Random - New Character Out Of The String And Then Remove The Character From The List Of Characters
Dec 12, 2010[Code]...
For each character of this string I want a new character out of the string and then remove the character from the list of characters that still maybe used for other characters. It may not get the same character, you could basically just call this encryption, but it's not what I am making. I don't want to waste my time doing this one hour while VB can do this for me in <1 second.
TRying To Replace One Specific Character Of String With New Character Entered By User
Feb 17, 2011I am writing a hangman type game and I am displaying the word to the user in a label as all *'s, but I cannot figure out how to have just one of the *'s changed in the label to the correct letter when the user inputs the correct letter into the text box and clicks the check letter button.Everything else in the program works perfectly, except for this part.[code]When I use the .Replace it changes all of the *'s to the correct selected letter.
View 2 RepliesGet Input String And Put Its Character Into List / And Replace Character With Other
Feb 16, 2012the coding is to 'Get input string and put its character into List, and replace the character with other.'but having problem putting each character into List and also replacing it,[code]
View 2 RepliesRead A Character In Textbox And Place Output On Another?
Aug 14, 2009We are going to create a compiler like program where when we inputed character or multicharacter it will retrieve to the database the equivalent symbol of that character and place it to another textbox.[code]...
View 1 RepliesTake A String Apart One Character At A Time And Add Each Character To A Label?
Jun 13, 2010I've been working with the substring command and after coding up all the things I needed it to do, I saw a post on here where the "For Each" statement was used basically to do the same thing.Lets say we just want to take a string apart one character at a time and add each character to a label. Which would be more efficient?I made a cheap example to show ...
Code:
ABinary = "0110 1100 0001 1011"
For x = 0 To Len(ABinary) - 1
[code].....
Encrypt A String Via 128+-bit Encryption?
Apr 23, 2011I am not sure if there is such thing in VB.NET via 128-bit Encryption or more. [code]...
View 12 RepliesEncrypt A String Using AES 256-bit Encryption With A Custom Key
Jul 28, 2009I need some help with encrypting a string. I want to encrypt a string using AES 256-bit encryption with a custom key. How can I go about doing this?
View 3 RepliesLimitless String In .net - Crashed The Encryption ?
Nov 10, 2009This is a question that has been bugging me for a while and I am no longer working in this so sorry for the lack of code. The situation is this I had a web service that in the client and the server page it had compression and it had encryption. It didn't work all the time because there was accents and that crashed the encryption but when you set it to UTF8 it got fixed. Still there was a set of data that was very BIG and it exceeded the limit of normal string 33 thousand or something characters.
This step happened in the packing and unpacking steps of web services. What was being returned is a Dataset(that in webservices it converts to an XML). I know StringBuilder can be helpful but I assume that when you change it toString() it will trim the string to the max limit.
Error When Read File (on 2nd Instance Of Software) - Output Char Buffer Is Too Small To Contain The Decoded Character
Apr 16, 2012So I tries to read txt file to memory, sometimes (just sometimes) I getting this error: The output char buffer is too small to contain the decoded characters, encoding 'Unicode (UTF-8)' fallback 'System.Text.DecoderReplacementFallback'. Parameter name: chars
[Code]...
String Concatenation String + Function Output + String = String + Function Output And No More?
Feb 4, 2010The following output produces a string with no closing xml tag. m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString() + "</G3Grid:Spots>"
This following code works correctly
m_rFlight.Layout = m_rFlight.Layout + "<G3Grid:Spots>" + Me.gvwSpots.LayoutToString()
m_rFlight.Layout = m_rFlight.Layout + "</G3Grid:Spots>" 'add closing tag
What's going on here, what's the reason the first example isnt working and the second is?
The gvwSpots.LayoutToString() function returns a string.
Secure(ish) Encryption/decryption Algorithms Using A String As A Key?
Aug 25, 2009Is there a way to encrypt/decrypt text (string form) in VB.net using another string as a key? Meaning, if one user encrypts using this key, the other user needs to decrypt using the same key?I do NOT mean public and private key encryption or anything of the sort.If not, what is the second best way to encrypt/decrypt data without public/private keys?I want to make a simple way to send messages securely.
View 2 RepliesEncryption - Securely Store Connection String In App.config?
May 15, 2012I need to know what is the common way to store a SQL server connection string for an application in VB.NET.How do I read app.config values How to do it in ASP How do I store a connectionstring (unencrypted thus unsafe)It's quite frustrating not to find a decent and full answer on how to store a connection string in VB.NET in app.config (or settings.settings if it's better) safely. At the moment it's hardcoded and so it is immobile and in plain text.
View 2 RepliesWrite A Program That Takes A String Of Bits And Encrypts It Using DES Encryption?
Feb 19, 2010Alright, So ive returned to using vb after several years now. Ive programed in VB6.0 years ago and I was quite proficient at it. However after returning to vb (now using Visual Studio 2010). Either Ive forgotten everything, or something has changed. For a university project. Im trying to write a program that takes a string of bits and encrypts it using DES Encryption.
[Code]...
Convert String Array Into A String Without Escaping Any Character?
Dec 24, 2011I need to convert a string array into a very long string with following requirement:
can not using any character escaping can not using XML can not using single character as separator (e.g. comma or space as separator)
Asp.net - Which Encoding Or Encryption Algorithm Should I Use For Query String So That It Will Result In Shortest Posssible Length (minimum Characters)?
May 26, 2012I am not sending any sensitive or security information in the query string. I am currently using Base64Encoding along with MD5 Hash. I want to shorten my url as far as possible.
[Code]...
Sql - Special VB String Escape Character Like @'String' In C#
Dec 21, 2011Does VB have an equivalent to the @ symbol in C# to quickly and efficiently escape a SQL command line string?
View 1 Replies.net Encryption Result Does Not Match The Xcode Encryption Result Given The Same Input Parameters?
Jun 21, 2011I 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
[Code]...
Split A String On A String Not A Character?
Jan 22, 2010I want split a gridview row on an html tag. How can i do this preferably in C#??.row.cells[1].Text.Split("htmltag")
View 7 RepliesTake A First Character From String?
Oct 6, 2011Using VB.Net & SQL Server 2005[code]...
I want to take a first character from the string (s)
.net - Removing - Character In String?
Mar 22, 2011i tried to read html contents by striping html tags in a string.when i try to print that string i got - character. how to remove this character?
View 2 RepliesAdd A Space Between Every Character In A String?
Oct 7, 2009How do I add a space between every character in a string of text?For example:Change abcdefg"
To "a b c d e f g"I have two text boxes on my form, one for input, the other for output of the re-formatted string.
Character Count From String
Dec 17, 2010I would like to know how i can count the character from a string.dim mystring as string = "myfilename_employee--2010-11-23-45-00--empid200"i need to see if this string have "--" two if it is less or more than two i need to alert to the user.
View 2 RepliesCharacter String Vb Code ?
Mar 5, 2009I have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653
View 14 RepliesCharacter String VB Code?
Nov 19, 2008I have been making a VB app that adds two text boxes together. This all adds up fine but I was wondering if there was any code to be able to turn the answer into a value such as 10.54 instead of 10.54653Basically turning the answer into a money value?
View 13 RepliesCompare Each Character Is String?
Jul 11, 2010i want to compare each character is string with the pattern and if any character matches it should give error.. eg, i have "ABCDEF" as patern to matched with.
and "OULJYSA" to be macthed with the patern, as u see A is common, so in that case it should display msgbox("match found") is there any way to do it? i did it in php using regex and preg_match()