-#include <gnutls/gnutls.h>
+#include "gnutls-helpers.h"
+
#include <gnutls/openpgp.h>
#include <gnutls/x509.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <stdarg.h>
/*
Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net>
Date: Tue, 01 Apr 2008
License: GPL v3 or later
- monkeysphere private key translator: execute this with an
- ASCII-armored private RSA key on stdin (at the moment, only
- passphraseless keys work).
+ monkeysphere private key translator: execute this with an GPG
+ secret key on stdin (at the moment, only passphraseless RSA keys
+ work).
It will spit out a PEM-encoded version of the key on stdout, which
can be fed into ssh-add like this:
*/
-void err(const char* fmt, ...) {
- va_list ap;
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
-}
-
-
-void init_datum(gnutls_datum_t* d) {
- d->data = NULL;
- d->size = 0;
-}
-void free_datum(gnutls_datum_t* d) {
- gnutls_free(d->data);
- d->data = NULL;
- d->size = 0;
-}
-
-/* read the passed-in string, store in a single datum */
-int set_datum_string(gnutls_datum_t* d, const char* s) {
- unsigned int x = strlen(s)+1;
- unsigned char* c = NULL;
-
- c = gnutls_realloc(d->data, x);
- if (NULL == c)
- return -1;
- d->data = c;
- d->size = x;
- memcpy(d->data, s, x);
- return 0;
-}
-
-/* read the passed-in file descriptor until EOF, store in a single
- datum */
-int set_datum_fd(gnutls_datum_t* d, int fd) {
- unsigned int bufsize = 1024;
- unsigned int len = 0;
-
- FILE* f = fdopen(fd, "r");
- if (bufsize > d->size) {
- bufsize = 1024;
- d->data = gnutls_realloc(d->data, bufsize);
- if (d->data == NULL) {
- err("out of memory!\n");
- return -1;
- }
- d->size = bufsize;
- } else {
- bufsize = d->size;
- }
- f = fdopen(fd, "r");
- if (NULL == f) {
- err("could not fdopen FD %d\n", fd);
- }
- clearerr(f);
- while (!feof(f) && !ferror(f)) {
- if (len == bufsize) {
- /* allocate more space by doubling: */
- bufsize *= 2;
- d->data = gnutls_realloc(d->data, bufsize);
- if (d->data == NULL) {
- err("out of memory!\n");
- return -1;
- };
- d->size = bufsize;
- }
- len += fread(d->data + len, 1, bufsize - len, f);
- /* err("read %d bytes\n", len); */
- }
- if (ferror(f)) {
- err("Error reading from fd %d (error: %d) (error: %d '%s')\n", fd, ferror(f), errno, strerror(errno));
- return -1;
- }
-
- /* touch up buffer size to match reality: */
- d->data = gnutls_realloc(d->data, len);
- d->size = len;
- return 0;
-}
-
-/* read the file indicated (by na1me) in the fname parameter. store
- its entire contents in a single datum. */
-int set_datum_file(gnutls_datum_t* d, const char* fname) {
- struct stat sbuf;
- unsigned char* c = NULL;
- FILE* file = NULL;
- size_t x = 0;
-
- if (0 != stat(fname, &sbuf)) {
- err("failed to stat '%s'\n", fname);
- return -1;
- }
-
- c = gnutls_realloc(d->data, sbuf.st_size);
- if (NULL == c) {
- err("failed to allocate %d bytes for '%s'\n", sbuf.st_size, fname);
- return -1;
- }
-
- d->data = c;
- d->size = sbuf.st_size;
- file = fopen(fname, "r");
- if (NULL == file) {
- err("failed to open '%s' for reading\n", fname);
- return -1;
- }
-
- x = fread(d->data, d->size, 1, file);
- if (x != 1) {
- err("tried to read %d bytes, read %d instead from '%s'\n", d->size, x, fname);
- fclose(file);
- return -1;
- }
- fclose(file);
- return 0;
-}
-
int main(int argc, char* argv[]) {
- const char* version = NULL;
-
gnutls_x509_privkey_t x509_privkey;
- gnutls_datum_t data;
+ 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;
+ gnutls_datum_t m, e, d, p, q, u, g, y, x;
+
/* gnutls_x509_crt_t crt; */
gnutls_openpgp_privkey_t pgp_privkey;
- gnutls_openpgp_crt_fmt_t pgp_format;
gnutls_pk_algorithm_t pgp_algo;
unsigned int pgp_bits;
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(&p);
init_datum(&q);
init_datum(&u);
-
- if (ret = gnutls_global_init(), ret) {
- err("Failed to do gnutls_global_init() (error: %d)\n", ret);
- return 1;
- }
+ init_datum(&g);
+ init_datum(&y);
+ init_datum(&x);
-
- version = gnutls_check_version(NULL);
-
- if (version)
- err("gnutls version: %s\n", version);
- else {
- err("no version found!\n");
- return 1;
- }
-
if (ret = gnutls_x509_privkey_init(&x509_privkey), ret) {
err("Failed to initialize X.509 private key (error: %d)\n", ret);
return 1;
/* write(0, output_data, ods); */
/* } */
-
/* format could be either: GNUTLS_OPENPGP_FMT_RAW,
- GNUTLS_OPENPGP_FMT_BASE64 */
- pgp_format = GNUTLS_OPENPGP_FMT_RAW;
- if (ret = gnutls_openpgp_privkey_import (pgp_privkey, &data, pgp_format, NULL, 0), ret) {
- err("failed to import the OpenPGP private key (error: %d)\n", ret);
- return 1;
+ GNUTLS_OPENPGP_FMT_BASE64; if MONKEYSPHERE_RAW is set, use RAW,
+ otherwise, use BASE64: */
+
+ 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)
+ 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)
+ err("failed to import the OpenPGP private key in BASE64 format (error: %d)\n", ret);
}
+
pgp_algo = gnutls_openpgp_privkey_get_pk_algorithm(pgp_privkey, &pgp_bits);
if (pgp_algo < 0) {
err("failed to get OpenPGP key algorithm (error: %d)\n", pgp_algo);
return 1;
}
- if (pgp_algo != GNUTLS_PK_RSA) {
- err("OpenPGP Key was not RSA (actual algorithm was: %d)\n", pgp_algo);
- return 1;
- }
-
- err("OpenPGP RSA Key, with %d bits\n", pgp_bits);
-
+ if (pgp_algo == GNUTLS_PK_RSA) {
+ err("OpenPGP RSA Key, with %d bits\n", pgp_bits);
+ ret = gnutls_openpgp_privkey_export_rsa_raw(pgp_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_export_rsa_raw(pgp_privkey, &m, &e, &d, &p, &q, &u);
- if (GNUTLS_E_SUCCESS != ret) {
- err ("failed to export RSA key parameters (error: %0x)\n", ret);
- return 1;
- }
+ ret = gnutls_x509_privkey_import_rsa_raw (x509_privkey, &m, &e, &d, &p, &q, &u);
+ if (GNUTLS_E_SUCCESS != ret) {
+ err ("failed to import RSA key parameters (error: %d)\n", ret);
+ return 1;
+ }
+ } else if (pgp_algo == GNUTLS_PK_DSA) {
+ err("OpenPGP DSA Key, with %d bits\n", pgp_bits);
+ ret = gnutls_openpgp_privkey_export_dsa_raw(pgp_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_x509_privkey_import_rsa_raw (x509_privkey, &m, &e, &d, &p, &q, &u);
- if (GNUTLS_E_SUCCESS != ret) {
- err ("failed to import RSA key parameters (error: %d)\n", ret);
+ ret = gnutls_x509_privkey_import_dsa_raw (x509_privkey, &p, &q, &g, &y, &x);
+ 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", pgp_algo);
return 1;
}
- /* const gnutls_datum_t * m, const gnutls_datum_t * e, const gnutls_datum_t * d, const gnutls_datum_t * p, const gnutls_datum_t * q, const gnutls_datum_t * u); */
ret = gnutls_x509_privkey_fix(x509_privkey);
if (ret != 0) {
projects / monkeysphere.git / blobdiff