ZeroC Ice certificate utilities
The Ice Certificate Utilities package includes the iceca command line utility and a small Python library to allow creating certificates for Ice clients or servers.
It relies on PyOpenSSL for the creation of certificates. The Java KeyStore files are created with the keytool utility. The Java BouncyCastle provider is required to create BouncyCastle KeyStore files.
We recommend using pip or easy_install to install this package.
The iceca command line utility
The iceca utility provides a small certificate authority to allow creating certificates for use with Ice client and servers. It supports commands for initialization of the CA database, certification creation and export.
usage: iceca [--verbose --help --capass <pass>] init create list show export The iceca command manages a small certificate authority to create and sign certificates for Ice clients or servers. Commands: init Initialize the certificate authority database create Create and sign a certificate/key pair list List the created certificates show Show a given certificate export Export a given certificate
Usage of the init subcommand:
usage: init [--overwrite --no-capass] Initializes the certificate authority database. Options: --overwrite Overwrite the existing CA database --no-capass Don't protect the CA with a password
Usage of the create subcommand:
usage: create [--ip=<ip>] [--dns=<dns>] <alias> [<common-name>] Creates and signs a certificate. A certificate is identified by its alias. If no common name is specified, the alias is used as the common name. Options: --ip Optional IP subject alternative name field --dns Optional DNS subject alternative name field
Usage of the list subcommand:
usage: list List aliases for the certificates created with this CA.
Usage of the show subcommand:
usage: show <alias> Print out the certificate associated to the given alias.
Usage of the export subcommand:
usage: export [--password <password>] [--alias <alias>] path Export a certificate from the CA to the given file path. If --alias isn't specified, the filename indicates which certificate to export. The file extension also specifies the export format for the certificate. Supported formats are: PKCS12 (.p12, .pfx) PEM (.pem) DER (.der, .cer, .crt) JKS (.jks, requires keytool to be in the PATH) BKS (.bks, requires keytool and support for the BouncyCastle provider) Options: --password The password to use for protecting the exported certificate --alias The alias of the certificate to export
The IceCertUtils module
Here’s an example on how to create a server and client certificate with the IceCertUtils module:
import IceCertUtils # # Create the certicate factory # factory = IceCertUtils.CertificateFactory(cn = "My CA") # Get the CA certificate and save it to PEM/DER and JKS files factory.getCA().save("cacert.pem").save("cacert.der").save("cacert.jks") # # Create a client certificate # client = factory.create("client", cn = "Client") # Save the client certificate to the PKCS12 format client.save("client.p12") # Save the client certificate to the JKS format and also include the CA certificate in the keystore with the alias "cacert" client.save("client.jks", caalias="cacert") # # Create the server certificate, include IP and DNS subject alternative names. # server = factory.create("server", cn = "Server", ip="127.0.0.1", dns="server.foo.com") # Save the server certificate to the PKCS12 format server.save("server.p12") # Save the server certificate to the JKS format server.save("server.jks", caalias="cacert") # Save the client and server certificates to the BKS format. If the BKS # provider is not installed this will throw. try: client.save("client.bks", caalias="cacert") server.save("server.bks", caalias="cacert") except Exception as ex: print("warning: couldn't generate BKS certificates:\n" + str(ex)) factory.destroy()
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