Bizarre SHA result in DB RSS

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  Moguay

  Member

  10 Points

  2 Posts

  Bizarre SHA result in DB

  Sep 10, 2003 07:06 AM|LINK

  I am encypting a password to SHA with the following code but the value stored in DB is odd For passord 'pass' i get this stored in DB(datatype nvarchar) : N#=[rpF)c4[W=nf

  Public Shared Function sha_pass(ByVal pass As String) As String
              Dim AE As New ASCIIEncoding()
              Dim ClearTextData() As Byte = AE.GetBytes(pass)
              Dim SHA1Data() As Byte
              Dim sha As New SHA1CryptoServiceProvider()
              SHA1Data = sha.ComputeHash(ClearTextData)
              Return AE.GetString(SHA1Data)
          End Function
  
  
  'function call
  pass1 = sha_pass(Request.Form("pass").ToString())

  What is the problem?
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  ErikOls

  Member

  55 Points

  11 Posts

  Microsoft

  Re: Bizarre SHA result in DB

  Sep 11, 2003 09:06 PM|LINK

  I think you're converting an array of arbitrary binary bytes (8 bits) into a string using ASCII encoding (7 bits). You might want to consider converting the binary array to Base64 format (or similar) instead and storing that. This would be something like:

  SHA1Data = sha.ComputeHash(ClearTextData)
  Return Convert.ToBase64String(SHA1Data)

  And you can convert it back into a byte array if need be using Convert.FromBase64String(). This will give you an ASCII safe string. The BitConverter class is another (longer output) way to do the same thing. Alternatively, you might consider storing the byte array itself instead of converting to a string. Thanks, Erik
  This posting is provided "AS IS" with no warranties, and confers no rights.