/* * (C) 2009 Jack Lloyd * * Distributed under the terms of the Botan license */ /* * Generate a root CA plus httpd, dovecot, and postfix certs/keys * */ #include <botan/botan.h> #include <botan/rsa.h> #include <botan/time.h> #include <botan/x509self.h> #include <botan/x509_ca.h> using namespace Botan; #include <iostream> #include <fstream> namespace { void fill_commoninfo(X509_Cert_Options& opts) { opts.country = "US"; opts.organization = "randombit.net"; opts.email = "admin@randombit.net"; opts.locality = "Vermont"; } X509_Certificate make_ca_cert(RandomNumberGenerator& rng, const Private_Key& priv_key, const X509_Time& now, const X509_Time& later) { X509_Cert_Options opts; fill_commoninfo(opts); opts.common_name = "randombit.net CA"; opts.start = now; opts.end = later; opts.CA_key(); return X509::create_self_signed_cert(opts, priv_key, "SHA-256", rng); } PKCS10_Request make_server_cert_req(const Private_Key& key, const std::string& hostname, RandomNumberGenerator& rng) { X509_Cert_Options opts; opts.common_name = hostname; fill_commoninfo(opts); opts.add_ex_constraint("PKIX.ServerAuth"); return X509::create_cert_req(opts, key, "SHA-1", rng); } void save_pair(const std::string& name, const std::string& password, const X509_Certificate& cert, const Private_Key& key, RandomNumberGenerator& rng) { std::string cert_fsname = name + "_cert.pem"; std::string key_fsname = name + "_key.pem"; std::ofstream cert_out(cert_fsname.c_str()); cert_out << cert.PEM_encode() << "\n"; cert_out.close(); std::ofstream key_out(key_fsname.c_str()); if(password != "") key_out << PKCS8::PEM_encode(key, rng, password); else key_out << PKCS8::PEM_encode(key); key_out.close(); } } int main() { const u32bit seconds_in_a_year = 31556926; const u32bit current_time = system_time(); X509_Time now = X509_Time(current_time); X509_Time later = X509_Time(current_time + 4*seconds_in_a_year); LibraryInitializer init; AutoSeeded_RNG rng; RSA_PrivateKey ca_key(rng, 2048); X509_Certificate ca_cert = make_ca_cert(rng, ca_key, now, later); const std::string ca_password = "sekrit"; save_pair("ca", ca_password, ca_cert, ca_key, rng); X509_CA ca(ca_cert, ca_key, "SHA-256"); RSA_PrivateKey httpd_key(rng, 1536); X509_Certificate httpd_cert = ca.sign_request( make_server_cert_req(httpd_key, "www.randombit.net", rng), rng, now, later); save_pair("httpd", "", httpd_cert, httpd_key, rng); RSA_PrivateKey bugzilla_key(rng, 1536); X509_Certificate bugzilla_cert = ca.sign_request( make_server_cert_req(bugzilla_key, "bugs.randombit.net", rng), rng, now, later); save_pair("bugzilla", "", bugzilla_cert, bugzilla_key, rng); RSA_PrivateKey postfix_key(rng, 1536); X509_Certificate postfix_cert = ca.sign_request( make_server_cert_req(postfix_key, "mail.randombit.net", rng), rng, now, later); save_pair("postfix", "", postfix_cert, postfix_key, rng); RSA_PrivateKey dovecot_key(rng, 1536); X509_Certificate dovecot_cert = ca.sign_request( make_server_cert_req(dovecot_key, "imap.randombit.net", rng), rng, now, later); save_pair("dovecot", "", dovecot_cert, dovecot_key, rng); }