Lua Requires Chilkat v11.0.0+

Load Java KeyStore and Access Contents

See more Java KeyStore (JKS) Examples

Loads a Java keystore file and iterates over the contents. A Java keystore (.jks) file can contain one or more trusted root certificate entries and/or one or more private key entries. Each private key entry includes an associated certificate chain. Lua

local chilkat = require("chilkat")

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

local jks = chilkat.JavaKeyStore.new()

-- Load the Java keystore from a file.  The JKS file password is used
-- to verify the keyed digest that is found at the very end of the keystore.
-- It verifies there has been no tampering with the file.
local success = jks:load_file("jksFilePassword", "/someDir/keyStore.jks")
if not success then
    print(jks.last_error_text)
    return
end

-- Find out how many of each type of entry:
local numTrustedCerts = jks.num_trusted_certs
local numPrivateKeys = jks.num_private_keys

local cert = chilkat.Cert.new()
local alias = ""

-- For each trusted certificate, access it by getting
-- it as a cert object.  Also get the alias associated with the certificate.
print("Trusted Certs:")
local i = 0
while i < numTrustedCerts do
    success = jks:trusted_cert_at(i, cert)
    print(jks:get_trusted_cert_alias(i) .. ": " .. cert.subject_dn)
    i = i + 1
end

local privKey = chilkat.PrivateKey.new()
local certChain = chilkat.CertChain.new()

-- For each private key entry, get the private key and
-- the associated certificate chain.
-- Each private key is password protected.  Usually it is the same
-- password as used for the keyed digest of the entire JKS.
-- However, this does not have to be.  The password is passed
-- here to handle the possibility of each private key requiring
-- a different password.
print("Private Keys:")
i = 0
while i < numPrivateKeys do
    jks:private_key_at("jksFilePassword", i, privKey)
    print(jks:get_private_key_alias(i))
    jks:cert_chain_at(i, certChain)

    -- The 1st certificate in the chain is the one associated with the private key.
    certChain:cert_at(0, cert)
    print(cert.subject_dn)

    i = i + 1
end