--- /dev/null
+#include "gnutls-helpers.h"
+
+#include <gnutls/openpgp.h>
+#include <gnutls/x509.h>
+
+/* for htonl() */
+#include <arpa/inet.h>
+
+
+/*
+ Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
+ Date: Tue, 08 Apr 2008
+ License: GPL v3 or later
+
+ monkeysphere public key translator: execute this with an GPG
+ certificate (public key(s) + userid(s)) on stdin. It currently
+ only works with RSA keys.
+
+ It will spit out a version of the first key capable of being used
+ for authentication on stdout. The output format should be suitable
+ for appending a known_hosts file.
+
+ Requirements: I've only built this so far with GnuTLS v2.3.4 --
+ version 2.2.0 does not contain the appropriate pieces.
+
+ */
+
+int main(int argc, char* argv[]) {
+ gnutls_datum_t data;
+ int ret;
+ gnutls_openpgp_crt_t openpgp_crt;
+ gnutls_openpgp_keyid_t keyid;
+ printable_keyid p_keyid;
+ unsigned int keyidx;
+ unsigned int usage, bits;
+ gnutls_pk_algorithm_t algo;
+
+ gnutls_datum_t m, e, p, q, g, y;
+
+ char output_data[10240];
+ size_t ods = sizeof(output_data);
+
+ init_gnutls();
+
+ init_datum(&data);
+
+ init_datum(&m);
+ init_datum(&e);
+ init_datum(&p);
+ init_datum(&q);
+ init_datum(&g);
+ init_datum(&y);
+
+ init_keyid(keyid);
+
+ /* slurp in the private key from stdin */
+ if (ret = set_datum_fd(&data, 0), ret) {
+ err("didn't read file descriptor 0\n");
+ return 1;
+ }
+
+
+ if (ret = gnutls_openpgp_crt_init(&openpgp_crt), ret) {
+ err("Failed to initialize OpenPGP certificate (error: %d)\n", ret);
+ return 1;
+ }
+
+ /* format could be either: GNUTLS_OPENPGP_FMT_RAW,
+ GNUTLS_OPENPGP_FMT_BASE64; if MONKEYSPHERE_RAW is set, use RAW,
+ otherwise, use BASE64: */
+
+ if (getenv("MONKEYSPHERE_RAW")) {
+ err("assuming RAW formatted certificate\n");
+ if (ret = gnutls_openpgp_crt_import(openpgp_crt, &data, GNUTLS_OPENPGP_FMT_RAW), ret) {
+ err("failed to import the OpenPGP certificate in RAW format (error: %d)\n", ret);
+ return ret;
+ }
+ } else {
+ err("assuming BASE64 formatted certificate\n");
+ if (ret = gnutls_openpgp_crt_import (openpgp_crt, &data, GNUTLS_OPENPGP_FMT_BASE64), ret) {
+ err("failed to import the OpenPGP certificate in BASE64 format (error: %d)\n", ret);
+ return ret;
+ }
+ }
+
+ if (gnutls_openpgp_crt_get_revoked_status(openpgp_crt)) {
+ err("the primary key was revoked!\n");
+ return 1;
+ }
+
+ if (ret = gnutls_openpgp_crt_get_key_usage(openpgp_crt, &usage), ret) {
+ err("failed to get the usage flags for the primary key (error: %d)\n", ret);
+ return ret;
+ }
+ if (usage & GNUTLS_KEY_KEY_AGREEMENT) {
+ err("the primary key can be used for authentication\n");
+
+ algo = gnutls_openpgp_crt_get_pk_algorithm(openpgp_crt, &bits);
+ if (algo < 0) {
+ err("failed to get the algorithm of the OpenPGP public key (error: %d)\n", algo);
+ return algo;
+ } else if (algo == GNUTLS_PK_RSA) {
+
+ err("OpenPGP RSA certificate, with %d bits\n", bits);
+ ret = gnutls_openpgp_crt_get_pk_rsa_raw(openpgp_crt, &m, &e);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export RSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else if (algo == GNUTLS_PK_DSA) {
+ err("OpenPGP DSA Key, with %d bits\n", bits);
+ ret = gnutls_openpgp_crt_get_pk_dsa_raw(openpgp_crt, &p, &q, &g, &y);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export DSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else {
+ err("OpenPGP Key was not RSA or DSA -- can't deal! (actual algorithm was: %d)\n", algo);
+ return 1;
+ }
+
+ } else {
+ err("primary key is only good for: 0x%08x. Trying subkeys...\n", usage);
+
+ if (ret = gnutls_openpgp_crt_get_auth_subkey(openpgp_crt, keyid), ret) {
+ err("failed to find a subkey capable of authentication (error: %d)\n", ret);
+ return ret;
+ }
+ make_keyid_printable(p_keyid, keyid);
+ err("found authentication subkey %.16s\n", p_keyid);
+
+ ret = gnutls_openpgp_crt_get_subkey_idx(openpgp_crt, keyid);
+ if (ret < 0) {
+ err("could not get the index of subkey %.16s (error: %d)\n", ret);
+ return ret;
+ }
+ keyidx = ret;
+
+ if (gnutls_openpgp_crt_get_subkey_revoked_status(openpgp_crt, keyidx)) {
+ err("The authentication subkey was revoked!\n");
+ return 1;
+ }
+
+ if (ret = gnutls_openpgp_crt_get_subkey_usage(openpgp_crt, keyidx, &usage), ret) {
+ err("could not figure out usage of subkey %.16s (error: %d)\n", p_keyid, ret);
+ return ret;
+ }
+ if ((usage & GNUTLS_KEY_KEY_AGREEMENT) == 0) {
+ err("could not find a subkey with authentication privileges.\n");
+ return 1;
+ }
+
+ /* switch, based on the algorithm in question, to extract the MPI
+ components: */
+
+ algo = gnutls_openpgp_crt_get_subkey_pk_algorithm(openpgp_crt, keyidx, &bits);
+ if (algo < 0) {
+ err("failed to get the algorithm of the authentication subkey (error: %d)\n", algo);
+ return algo;
+ } else if (algo == GNUTLS_PK_RSA) {
+
+ err("OpenPGP RSA subkey, with %d bits\n", bits);
+ ret = gnutls_openpgp_crt_get_subkey_pk_rsa_raw(openpgp_crt, keyidx, &m, &e);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export RSA subkey parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else if (algo == GNUTLS_PK_DSA) {
+ err("OpenPGP DSA subkey, with %d bits\n", bits);
+ ret = gnutls_openpgp_crt_get_subkey_pk_dsa_raw(openpgp_crt, keyidx, &p, &q, &g, &y);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export DSA subkey parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else {
+ err("OpenPGP subkey was not RSA or DSA -- can't deal! (actual algorithm was: %d)\n", algo);
+ return 1;
+ }
+ }
+
+ /* now we have algo, and the various MPI data set. Can we export
+ them cleanly? */
+
+
+
+ gnutls_openpgp_crt_deinit(openpgp_crt);
+ gnutls_global_deinit();
+ return 0;
+}
*/
-
-int main(int argc, char* argv[]) {
- gnutls_x509_privkey_t x509_privkey;
- gnutls_datum_t data, test, clean;
- int ret;
-
- /*
- const char *certfile, *keyfile;
- gnutls_certificate_credentials_t pgp_creds;
- */
- gnutls_datum_t m, e, d, p, q, u, g, y, x;
-
- /* gnutls_x509_crt_t crt; */
-
+int convert_pgp_to_x509(gnutls_x509_privkey_t* output, gnutls_datum_t* input) {
gnutls_openpgp_privkey_t pgp_privkey;
+ gnutls_datum_t m, e, d, p, q, u, g, y, x;
gnutls_pk_algorithm_t pgp_algo;
unsigned int pgp_bits;
+ int ret;
- char output_data[10240];
- size_t ods = sizeof(output_data);
-
- init_gnutls();
-
- init_datum(&data);
- init_datum(&test);
- init_datum(&clean);
init_datum(&m);
init_datum(&e);
init_datum(&d);
init_datum(&y);
init_datum(&x);
-
- if (ret = gnutls_x509_privkey_init(&x509_privkey), ret) {
- err("Failed to initialize X.509 private key (error: %d)\n", ret);
- return 1;
- }
-
if (ret = gnutls_openpgp_privkey_init(&pgp_privkey), ret) {
err("Failed to initialized OpenPGP private key (error: %d)\n", ret);
return 1;
}
- /* slurp in the private key from stdin */
- if (ret = set_datum_fd(&data, 0), ret) {
- err("didn't read file descriptor 0\n");
- return 1;
- }
-
- /* Or, instead, read in key from a file name:
- if (ret = set_datum_file(&data, argv[1]), ret) {
- err("didn't read file '%s'\n", argv[1]);
- return 1;
- }
-*/
-
- /* treat the passed file as an X.509 private key, and extract its
- component values: */
-
-/* if (ret = gnutls_x509_privkey_import(x509_privkey, &data, GNUTLS_X509_FMT_PEM), ret) { */
-/* err("Failed to import the X.509 key (error: %d)\n", ret); */
-/* return 1; */
-/* } */
-/* gnutls_x509_privkey_export_rsa_raw(x509_privkey, &m, &e, &d, &p, &q, &u); */
-
- /* try to print the PEM-encoded private key: */
-/* ret = gnutls_x509_privkey_export (x509_privkey, */
-/* GNUTLS_X509_FMT_PEM, */
-/* output_data, */
-/* &ods); */
-/* printf("ret: %u; ods: %u;\n", ret, ods); */
-/* if (ret == 0) { */
-/* write(0, output_data, ods); */
-/* } */
/* format could be either: GNUTLS_OPENPGP_FMT_RAW,
GNUTLS_OPENPGP_FMT_BASE64; if MONKEYSPHERE_RAW is set, use RAW,
if (getenv("MONKEYSPHERE_RAW")) {
err("assuming RAW formatted private keys\n");
- if (ret = gnutls_openpgp_privkey_import(pgp_privkey, &data, GNUTLS_OPENPGP_FMT_RAW, NULL, 0), ret)
+ if (ret = gnutls_openpgp_privkey_import(pgp_privkey, input, GNUTLS_OPENPGP_FMT_RAW, NULL, 0), ret)
err("failed to import the OpenPGP private key in RAW format (error: %d)\n", ret);
} else {
err("assuming BASE64 formatted private keys\n");
- if (ret = gnutls_openpgp_privkey_import (pgp_privkey, &data, GNUTLS_OPENPGP_FMT_BASE64, NULL, 0), ret)
+ if (ret = gnutls_openpgp_privkey_import (pgp_privkey, input, GNUTLS_OPENPGP_FMT_BASE64, NULL, 0), ret)
err("failed to import the OpenPGP private key in BASE64 format (error: %d)\n", ret);
}
return 1;
}
- ret = gnutls_x509_privkey_import_rsa_raw (x509_privkey, &m, &e, &d, &p, &q, &u);
+ ret = gnutls_x509_privkey_import_rsa_raw (*output, &m, &e, &d, &p, &q, &u);
if (GNUTLS_E_SUCCESS != ret) {
err ("failed to import RSA key parameters (error: %d)\n", ret);
return 1;
return 1;
}
- ret = gnutls_x509_privkey_import_dsa_raw (x509_privkey, &p, &q, &g, &y, &x);
+ ret = gnutls_x509_privkey_import_dsa_raw (*output, &p, &q, &g, &y, &x);
if (GNUTLS_E_SUCCESS != ret) {
err ("failed to import DSA key parameters (error: %d)\n", ret);
return 1;
return 1;
}
- ret = gnutls_x509_privkey_fix(x509_privkey);
+ ret = gnutls_x509_privkey_fix(*output);
if (ret != 0) {
err("failed to fix up the private key in X.509 format (error: %d)\n", ret);
return 1;
}
+
+ gnutls_openpgp_privkey_deinit(pgp_privkey);
+ return 0;
+}
+
+int convert_x509_to_pgp(gnutls_openpgp_privkey_t* output, gnutls_datum_t* input) {
+ gnutls_x509_privkey_t x509_privkey;
+ gnutls_datum_t m, e, d, p, q, u, g, y, x;
+ gnutls_pk_algorithm_t x509_algo;
+ int ret;
+
+ init_datum(&m);
+ init_datum(&e);
+ init_datum(&d);
+ init_datum(&p);
+ init_datum(&q);
+ init_datum(&u);
+ init_datum(&g);
+ init_datum(&y);
+ init_datum(&x);
+
+ if (ret = gnutls_x509_privkey_init(&x509_privkey), ret) {
+ err("Failed to initialized X.509 private key (error: %d)\n", ret);
+ return 1;
+ }
+
+
+ /* format could be either: GNUTLS_X509_FMT_DER,
+ GNUTLS_X509_FMT_PEM; if MONKEYSPHERE_DER is set, use DER,
+ otherwise, use PEM: */
+
+ if (getenv("MONKEYSPHERE_DER")) {
+ err("assuming DER formatted private keys\n");
+ if (ret = gnutls_x509_privkey_import(x509_privkey, input, GNUTLS_X509_FMT_DER), ret)
+ err("failed to import the X.509 private key in DER format (error: %d)\n", ret);
+ } else {
+ err("assuming PEM formatted private keys\n");
+ if (ret = gnutls_x509_privkey_import (x509_privkey, input, GNUTLS_X509_FMT_PEM), ret)
+ err("failed to import the X.509 private key in PEM format (error: %d)\n", ret);
+ }
+
+ x509_algo = gnutls_x509_privkey_get_pk_algorithm(x509_privkey);
+ if (x509_algo < 0) {
+ err("failed to get X.509 key algorithm (error: %d)\n", x509_algo);
+ return 1;
+ }
+ if (x509_algo == GNUTLS_PK_RSA) {
+ err("X.509 RSA Key\n");
+ ret = gnutls_x509_privkey_export_rsa_raw(x509_privkey, &m, &e, &d, &p, &q, &u);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export RSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+
+ /* ret = gnutls_openpgp_privkey_import_rsa_raw (*output, &m, &e, &d, &p, &q, &u); */
+ ret = GNUTLS_E_UNIMPLEMENTED_FEATURE;
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to import RSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else if (x509_algo == GNUTLS_PK_DSA) {
+ err("X.509 DSA Key\n");
+ ret = gnutls_x509_privkey_export_dsa_raw(x509_privkey, &p, &q, &g, &y, &x);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to export DSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+
+ /* ret = gnutls_openpgp_privkey_import_dsa_raw (*output, &p, &q, &g, &y, &x); */
+ ret = GNUTLS_E_UNIMPLEMENTED_FEATURE;
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to import DSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else {
+ err("OpenPGP Key was not RSA or DSA -- can't deal! (actual algorithm was: %d)\n", x509_algo);
+ return 1;
+ }
+
+ gnutls_x509_privkey_deinit(x509_privkey);
+ return 0;
+}
+
+
+int main(int argc, char* argv[]) {
+ gnutls_datum_t data;
+ int ret;
+ gnutls_x509_privkey_t x509_privkey;
+
+ char output_data[10240];
+ size_t ods = sizeof(output_data);
+
+ init_gnutls();
+
+ init_datum(&data);
+
+ /* slurp in the private key from stdin */
+ if (ret = set_datum_fd(&data, 0), ret) {
+ err("didn't read file descriptor 0\n");
+ return 1;
+ }
+
+
+
+ /* Or, instead, read in key from a file name:
+ if (ret = set_datum_file(&data, argv[1]), ret) {
+ err("didn't read file '%s'\n", argv[1]);
+ return 1;
+ }
+*/
+
+ /* treat the passed file as an X.509 private key, and extract its
+ component values: */
+
+/* if (ret = gnutls_x509_privkey_import(x509_privkey, &data, GNUTLS_X509_FMT_PEM), ret) { */
+/* err("Failed to import the X.509 key (error: %d)\n", ret); */
+/* return 1; */
+/* } */
+/* gnutls_x509_privkey_export_rsa_raw(x509_privkey, &m, &e, &d, &p, &q, &u); */
+
+ /* try to print the PEM-encoded private key: */
+/* ret = gnutls_x509_privkey_export (x509_privkey, */
+/* GNUTLS_X509_FMT_PEM, */
+/* output_data, */
+/* &ods); */
+/* printf("ret: %u; ods: %u;\n", ret, ods); */
+/* if (ret == 0) { */
+/* write(0, output_data, ods); */
+/* } */
+
+
+ if (ret = gnutls_x509_privkey_init(&x509_privkey), ret) {
+ err("Failed to initialize X.509 private key (error: %d)\n", ret);
+ return 1;
+ }
+
+ if (ret = convert_pgp_to_x509(&x509_privkey, &data), ret) {
+ return ret;
+ }
+
ret = gnutls_x509_privkey_export (x509_privkey,
GNUTLS_X509_FMT_PEM,
output_data,
gnutls_x509_privkey_deinit(x509_privkey);
- gnutls_openpgp_privkey_deinit(pgp_privkey);
gnutls_global_deinit();
return 0;
}
projects / monkeysphere.git / commitdiff