(PowerBuilder) 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

integer li_rc
string ls_Password
oleobject loo_Crypt
oleobject loo_Prng
oleobject loo_Bd
oleobject loo_Dt
string ls_Created
string ls_PasswordSha1
string ls_PasswordDigest

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

ls_Password = "secret"

loo_Crypt = create oleobject
// Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
li_rc = loo_Crypt.ConnectToNewObject("Chilkat.Crypt2")
if li_rc < 0 then
    destroy loo_Crypt
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Crypt.HashAlgorithm = "SHA-1"
loo_Crypt.EncodingMode = "base64"

// Generate a 16-byte random nonce
loo_Prng = create oleobject
// Use "Chilkat_9_5_0.Prng" for versions of Chilkat < 10.0.0
li_rc = loo_Prng.ConnectToNewObject("Chilkat.Prng")

loo_Bd = create oleobject
// Use "Chilkat_9_5_0.BinData" for versions of Chilkat < 10.0.0
li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData")

loo_Prng.GenRandomBd(16,loo_Bd)

// Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
loo_Dt = create oleobject
// Use "Chilkat_9_5_0.CkDateTime" for versions of Chilkat < 10.0.0
li_rc = loo_Dt.ConnectToNewObject("Chilkat.CkDateTime")

loo_Dt.SetFromCurrentSystemTime()
ls_Created = loo_Dt.GetAsTimestamp(0)
loo_Bd.AppendString(ls_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...
ls_PasswordSha1 = loo_Crypt.HashStringENC(ls_Password)
// Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time.
loo_Bd.AppendEncoded(ls_PasswordSha1,"base64")

ls_PasswordDigest = loo_Crypt.HashBdENC(loo_Bd)

Write-Debug "Base64 password digest = " + ls_PasswordDigest


destroy loo_Crypt
destroy loo_Prng
destroy loo_Bd
destroy loo_Dt