Ruby

Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

See more OpenSSL Examples

How to create a PKCS12 (.p12 or .pfx) from a certificate file and private key file: Demonstrates how to duplicate this OpenSSL command:

Duplicate openssl pkcs12 –export –in certfile.cer –inkey certfile.key –out certfile.pfx

Ruby

require 'chilkat'

success = false

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

pkey = Chilkat::CkPrivateKey.new()

# Load the private key from the file.
success = pkey.LoadAnyFormatFile("certFile.key","")
if (success != true)
    print pkey.lastErrorText() + "\n";
    exit
end

cert = Chilkat::CkCert.new()
# The LoadFromFile method auto-recognizes the format...
success = cert.LoadFromFile("certfile.cer")
if (success != true)
    print cert.lastErrorText() + "\n";
    exit
end

# We'll need a cert chain object to create the PKCS12, so get it
# from the cert.  

# certChain is a CkCertChain
certChain = cert.GetCertChain()
if (!cert.get_LastMethodSuccess())
    print cert.lastErrorText() + "\n";
    exit
end

# Create the PFX object, add the cert and private key, and write to a .pfx file.
pfx = Chilkat::CkPfx.new()

# The cert(s) are automatically added in the call to AddPrivateKey
success = pfx.AddPrivateKey(pkey,certChain)
if (success != true)
    print pfx.lastErrorText() + "\n";
    exit
end

# Write the .pfx to a file.
password = "myPassword"
success = pfx.ToFile(password,"certfile.pfx")
if (success != true)
    print pfx.lastErrorText() + "\n";
    exit
end

print "Success." + "\n";