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May 19th, 2004
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How to create SHA1 Encryption program

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How do I go about creating a windows application that converts strings to sha1 encrypted? All I want this program to do is have a user type in their password, click a command button "Convert" and have a label come up with the now SHA1 encrypted string. NOTE: THis is just for my own personal use, I will be in no way distributing or selling this program.
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May 22nd, 2004
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Re: How to create SHA1 Encryption program

Ok, I will bite. What is SHA1 encryption?
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May 22nd, 2004
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Re: How to create SHA1 Encryption program

SHA1 is an algorithm (Secure Hash Algorithm version 1.0) for encrpyting strings.


http://www.w3.org/PICS/DSig/SHA1_1_0.html happy reading dude.

Slade
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May 23rd, 2004
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Re: How to create SHA1 Encryption program

:eek:

Wow, that is some reading.

:o

From a quick glance, I am guessing you will need to use RegEx for managing Regular Expressions.

Not sure I can be much help? :cry: Anyone else? Tekmaven?
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May 23rd, 2004
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Re: How to create SHA1 Encryption program

it's ok, my supervisor is teaching me how to use crypto stuff. I will tell you more later.
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May 24th, 2004
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Re: How to create SHA1 Encryption program

Slade - I was just surfing around and found this site on SHA1 Encryption. Hope this helps!
:lol:
SHA1 Encryption Program
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May 24th, 2004
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Re: How to create SHA1 Encryption program

Thanks! My hardware should be arriving this week which means an article on forms authentication is due.
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Jun 3rd, 2004
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Re: How to create SHA1 Encryption program

I can't understand why my code wont work. Check it out.
 
Imports SHA1_Encryption 
Imports System.Security.Cryptography
 
PublicClass Form1 
Inherits System.Windows.Forms.Form
 
(Windows for designer generated code)
 
PublicFunction ComputeHashValue(ByVal data() AsByte) AsByte() 
Dim hashAlg As SHA1 = SHA1.Create() 
Dim hashvalue() AsByte = hashAlg.ComputeHash(data) 
Return hashvalue 
EndFunction
 
PrivateSub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click 
Dim test AsByte() 
test = ComputeHashValue(Encoding.ASCII.Text(TextBox1.Text)) 
EndSub 
EndClass
The encoding part wont work and when I hover over it it says. "Name 'Encoding' is not declared." any ideas? Maybe I'm missing a library reference?
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Jun 3rd, 2004
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Re: How to create SHA1 Encryption program

OK I would still like to get the windows encryption working (above) but I have finished a web application one for now:
Imports System.Web.Security

PrivateSub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim encpass AsString = FormsAuthentication.HashPasswordForStoringInConfigFile(txtPassword.Text, "sha1")
lblResult.Text = encpass.ToString()
EndSub
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Jun 3rd, 2004
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Re: How to create SHA1 Encryption program

No sure, but give me a chance to look at it tomorrow morning.

By the way, not to change the topic, how did you get the code to come out color coded when posting it here??
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