VBScript – Storing SHA1 as Numeric or Binary Value in SQL Server

VBScript – Storing SHA1 as Numeric or Binary Value in SQL Server.

Private Function SHA1(s)
    Dim asc, enc, bytes, outstr, pos
    Set asc = CreateObject("System.Text.UTF8Encoding")
    Set enc = CreateObject("System.Security.Cryptography.SHA1CryptoServiceProvider")
    'Convert the string to a byte array and hash it
    bytes = asc.GetBytes_4(s) 'This is how you use .Net overloaded methods in VBScript
    bytes = enc.ComputeHash_2((bytes))
    outstr = ""
    'Convert the byte array to a hex string
    For pos = 1 To Lenb(bytes)
        outstr = outstr & LCase(Right("0" & Hex(Ascb(Midb(bytes, pos, 1))), 2))
    Next
    SHA1 = outstr
    Set asc = Nothing
    Set enc = Nothing
End Function
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