Chilkat2-Python

SFTP Authenticate Secure

Demonstrates how to do SFTP password authentication with secure strings.

This example requires Chilkat v9.5.0.71 or greater.

Chilkat2-Python

import sys
import chilkat2

success = False

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

# Imagine we've previously saved our encrypted login and password within a JSON config file
# that contains this:

# {
#   "ssh_login": "2+qylFfC56Ck7OQQt/U2/w==",
#   "ssh_password": "5neIq9Jmn0E3p71N6Yc8TA=="
# }

json = chilkat2.JsonObject()
json.LoadFile("qa_data/passwords/ssh.json")

crypt = chilkat2.Crypt2()

# These are the encryption settings we previously used to encrypt the credentials within the JSON config file.
crypt.CryptAlgorithm = "aes"
crypt.CipherMode = "cbc"
crypt.KeyLength = 128
crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex")
crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex")
crypt.EncodingMode = "base64"

ssLogin = chilkat2.SecureString()
ssPassword = chilkat2.SecureString()

# Decrypt to the secure string.  (the strings will still held in memory encrypted, but are now encrypted using
# a randomly generated session key.)
crypt.DecryptSecureENC(json.StringOf("ssh_login"),ssLogin)
crypt.DecryptSecureENC(json.StringOf("ssh_password"),ssPassword)

sftp = chilkat2.SFtp()

success = sftp.Connect("MY-SSH-SERVER-DOMAIN-OR-IP",22)
if (success != True):
    print(sftp.LastErrorText)
    sys.exit()

# Authenticate using secure strings
success = sftp.AuthenticateSecPw(ssLogin,ssPassword)
if (success != True):
    print(sftp.LastErrorText)
    sys.exit()

print("SFTP Authentication successful.")

sftp.Disconnect()