B4X

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

See more Encryption Examples

Demonstrates how to compute:

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

B4X

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

Dim password As String = "secret"

Dim crypt As ChilkatCrypt2
crypt.Initialize("crypt")
crypt.HashAlgorithm = "SHA-1"
crypt.EncodingMode = "base64"

'  Generate a 16-byte random nonce
Dim prng As ChilkatPrng
prng.Initialize
Dim bd As ChilkatBinData
bd.Initialize
prng.GenRandomBd(16, bd)

'  Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
Dim dt As ChilkatDateTime
dt.Initialize
dt.SetFromCurrentSystemTime
Dim created As String = dt.GetAsTimestamp(False)
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...
Dim passwordSha1 As String = crypt.HashStringENC(password)
'  Append the 20 binary bytes of the SHA1 hash to bd, which already contains the nonce and created date/time.
bd.AppendEncoded(passwordSha1, "base64")

Dim passwordDigest As String = crypt.HashBdENC(bd)

Log("Base64 password digest = " & passwordDigest)