Chilkat2-Python

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)))

Chilkat2-Python

import chilkat2

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

password = "secret"

crypt = chilkat2.Crypt2()
crypt.HashAlgorithm = "SHA-1"
crypt.EncodingMode = "base64"

# Generate a 16-byte random nonce
prng = chilkat2.Prng()
bd = chilkat2.BinData()
prng.GenRandomBd(16,bd)

# Get the current date/time in a string with this format: 2010-06-08T07:26:50Z
dt = chilkat2.CkDateTime()
dt.SetFromCurrentSystemTime()
created = 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...
passwordSha1 = 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")

passwordDigest = crypt.HashBdENC(bd)

print("Base64 password digest = " + passwordDigest)