(Python) Encrypt / Decrypt Secure Strings

Demonstrates how to use the EncryptSecureENC and DecryptSecureENC methods to encrypt/decrypt secure strings. These methods were added in Chilkat v9.5.0.71 (released January 2018).

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

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

#  Load the secure string with some text.
secStr1 = chilkat.CkSecureString()
success = secStr1.LoadFile("qa_data/txt/helloWorld.txt","utf-8")
if (success != True):
    print("Failed to load helloWorld.txt")
    sys.exit()

crypt = chilkat.CkCrypt2()

crypt.put_CryptAlgorithm("aes")
crypt.put_CipherMode("cbc")
crypt.put_KeyLength(128)
crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex")
crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex")
crypt.put_EncodingMode("base64")

#  Return the base64 encoded encrypted contents of secStr1.
encryptedStr = crypt.encryptSecureENC(secStr1)
print("Encrypted string: " + encryptedStr)

#  Output:
#  Encrypted string: qiq+IFhcjTkEIkZyf31V/g==

#  Decrypt to secStr2:
secStr2 = chilkat.CkSecureString()
crypt.DecryptSecureENC(encryptedStr,secStr2)

#  Access the contents of secStr2
print("Decrypted string: " + secStr2.access())

#  Output:
#  Decrypted string: Hello World!