(VBScript) Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password) ) )

Demonstrates how to compute:

Password_Digest = Base64 (SHA-1 ( nonce + created + SHA-1 (password)))

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.

password = "secret"

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Crypt2")
set crypt = CreateObject("Chilkat.Crypt2")
crypt.HashAlgorithm = "SHA-1"
crypt.EncodingMode = "base64"

' Generate a 16-byte random nonce
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Prng")
set prng = CreateObject("Chilkat.Prng")
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.BinData")
set bd = CreateObject("Chilkat.BinData")
success = prng.GenRandomBd(16,bd)

' Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.CkDateTime")
set dt = CreateObject("Chilkat.CkDateTime")
success = dt.SetFromCurrentSystemTime()
created = dt.GetAsTimestamp(0)
success = bd.AppendString(created,"utf-8")

' This example wishes to calculate a password digest like this:
' Password_Digest = Base64 ( SHA-1 ( nonce + created + SHA-1(password) ) )

' First SHA-1 digest the password...
passwordSha1 = crypt.HashStringENC(password)
' Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time.
success = bd.AppendEncoded(passwordSha1,"base64")

passwordDigest = crypt.HashBdENC(bd)

outFile.WriteLine("Base64 password digest = " & passwordDigest)

outFile.Close