(Chilkat2-Python) Create JCEKS Containing Secret Keys

Demonstrates how to create a JCEKS keystore file containing symmetric secret keys (for AES, Blowfish, HMAC SHA25, ChaCha20, etc.)

This example requires Chilkat v9.5.0.66 or greater.

Chilkat2 Python Downloads install with pip pip3 install chilkat2 or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

# IMPORTANT: This example requires Chilkat v9.5.0.66 or greater.

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

jceks = chilkat2.JavaKeyStore()

# We'll need a pseudo-random number generator (PRNG) to generate symmetric keys.
prng = chilkat2.Prng()

# Generate some keys..

# 128-bit AES key (16 bytes)
aesKey = prng.GenRandom(16,"base64")

# 256-bit Blowfish key (32 bytes)
blowfishKey = prng.GenRandom(32,"base64")

# HMAC SHA256 key
# (An HMAC key can be anything, and any length. We'll use the following string:
hmacKey = "This is my HMAC key"

# ChaCha20 256-bit
chachaKey = prng.GenRandom(32,"base64")

# Add each secret key to the JCEKS
encoding = "base64"
password = "secret"
jceks.AddSecretKey(aesKey,encoding,"AES","my aes key",password)
jceks.AddSecretKey(blowfishKey,encoding,"BLOWFISH","my blowfish key",password)
# For HMAC, we're using the us-ascii bytes for the key..
jceks.AddSecretKey(hmacKey,"ascii","HMAC_SHA256","my hmac key",password)
jceks.AddSecretKey(chachaKey,encoding,"CHACHA","my chacha20 key",password)

filePassword = "password"
# Write the JCEKs to a file.
success = jceks.ToFile(filePassword,"qa_output/secretKeys.jceks")
if (success != True):
    print(jceks.LastErrorText)
    sys.exit()

# We can also emit as a JWK Set..
sbJson = chilkat2.StringBuilder()
success = jceks.ToJwkSet("secret",sbJson)
if (success != True):
    print(jceks.LastErrorText)
    sys.exit()

# Emit the JSON in pretty-printed (indented) form:
json = chilkat2.JsonObject()
json.LoadSb(sbJson)
json.EmitCompact = False
print(json.Emit())

# Output is:

# { 
#   "keys": [
#     { 
#       "kty": "oct",
#       "alg": "AES",
#       "k": "vHekQQB0Gc1NvppapUTW2g",
#       "kid": "my aes key"
#     },
#     { 
#       "kty": "oct",
#       "alg": "BLOWFISH",
#       "k": "qHsdXaJsXicVCZbK8l8hJQpYOa0GkiO9gsRK9WLtht8",
#       "kid": "my blowfish key"
#     },
#     { 
#       "kty": "oct",
#       "alg": "HMAC_SHA256",
#       "k": "VGhpcyBpcyBteSBITUFDIGtleQ",
#       "kid": "my hmac key"
#     },
#     { 
#       "kty": "oct",
#       "alg": "CHACHA",
#       "k": "yNv832U43C9BcWvaQAH2_rG-GwfmpgT5JBRllWGQY1o",
#       "kid": "my chacha20 key"
#     }
#   ]
# }
#