Crypthography helo

[Alen Guroviæ]

hello people
here is example how to hash something
I want to set key for that but i don't know how??
Code works but how can i put secret key code and after that decrypt

sorry for my english :)
Sub Main()

Dim x_str As String = "Some text"

Dim x_message_data( ) As Byte = Encoding.Defaul t.GetBytes(x_st r)

Dim x_hash_code As HashAlgorithm = HashAlgorithm.C reate("MD5")

Dim x_hash_message( ) As Byte = x_hash_code.Com puteHash(x_mess age_data)

Dim x As Byte

For Each x In x_hash_message

Console.Write(x )

Next

Console.ReadLin e()

End Sub

[Jon Skeet [C# MVP]]

Re: Crypthography helo

Alen Guroviæ <ivana.gurovic@ zg.htnet.hr> wrote:[color=blue]
> here is example how to hash something
> I want to set key for that but i don't know how??
> Code works but how can i put secret key code and after that decrypt[/color]

Hash algorithms don't work that way - they're one way, not two way. You
don't decrypt the results.

--
Jon Skeet - <skeet@pobox.co m>

http://www.pobox.com/~skeet

If replying to the group, please do not mail me too

[Nick Malik]

Re: Crypthography helo

Hello Alen,

You've asked this same question in three threads on two newsgroups with
different answers each time. Are you understanding the answers?

Creating a hash is not the same as encrypting. Hash algorithms are used for
non-repudiation (aka "signatures "), not for hiding information from prying
eyes.

Do not use a hashing algorithm. Use a private-key encryption algorithm like
TripleDES or AES.

--- Nick

"Alen Guroviæ" <ivana.gurovic@ zg.htnet.hr> wrote in message
news:cgsucf$htc $1@ls219.htnet. hr...[color=blue]
> hello people
> here is example how to hash something
> I want to set key for that but i don't know how??
> Code works but how can i put secret key code and after that decrypt
>
> sorry for my english :)
> Sub Main()
>
> Dim x_str As String = "Some text"
>
> Dim x_message_data( ) As Byte = Encoding.Defaul t.GetBytes(x_st r)
>
> Dim x_hash_code As HashAlgorithm = HashAlgorithm.C reate("MD5")
>
> Dim x_hash_message( ) As Byte = x_hash_code.Com puteHash(x_mess age_data)
>
> Dim x As Byte
>
> For Each x In x_hash_message
>
> Console.Write(x )
>
> Next
>
> Console.ReadLin e()
>
> End Sub
>
>[/color]