diff options
author | Micah Anderson <micah@riseup.net> | 2008-06-18 23:35:20 -0400 |
---|---|---|
committer | Micah Anderson <micah@riseup.net> | 2008-06-18 23:35:20 -0400 |
commit | 308aa104f66a40f2426c13b96f48631937502f6b (patch) | |
tree | 55e1b1427ba23750b0c239e5d43fc3ffa49b0293 /gpg2ssh/ssh2gpg.c | |
parent | a9a56853a27e1dbce3c48af327b0adff0e4c38e0 (diff) | |
parent | 9c94e937fbe8beb56956365cac07d6eff45215cd (diff) |
Merge commit 'dkg/master'
Conflicts:
doc/MonkeySpec
Diffstat (limited to 'gpg2ssh/ssh2gpg.c')
-rw-r--r-- | gpg2ssh/ssh2gpg.c | 171 |
1 files changed, 0 insertions, 171 deletions
diff --git a/gpg2ssh/ssh2gpg.c b/gpg2ssh/ssh2gpg.c deleted file mode 100644 index b14a540..0000000 --- a/gpg2ssh/ssh2gpg.c +++ /dev/null @@ -1,171 +0,0 @@ -#include "gnutls-helpers.h" - -#include <gnutls/openpgp.h> -#include <gnutls/x509.h> - -/* for waitpid() */ -#include <sys/types.h> -#include <sys/wait.h> - -/* for time() */ -#include <time.h> - -/* for htons() */ -#include <arpa/inet.h> - - -/* - Author: Daniel Kahn Gillmor <dkg@fifthhorseman.net> - Date: Sun, 2008-04-20 - License: GPL v3 or later - - monkeysphere public key translator: execute this with an ssh - private key on stdin. It currently only works with RSA keys. - - it should eventually work with OpenSSH-style public keys instead of - the full private key, but it was easier to do this way. - - It shoud spit out a version of the public key suitable for acting - as an OpenPGP public sub key packet. - - */ - -int main(int argc, char* argv[]) { - gnutls_datum_t data; - int ret; - gnutls_x509_privkey_t x509_privkey; - 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; - - unsigned char packettag; - unsigned char openpgpversion; - time_t timestamp; - uint32_t clunkytime; - unsigned char openpgpalgo; - unsigned int packetlen; - uint16_t plen; - - gnutls_datum_t m, e, d, p, q, u, g, y; - gnutls_datum_t algolabel; - - char output_data[10240]; - char userid[10240]; - size_t uidsz = sizeof(userid); - - const gnutls_datum_t* all[5]; - int pipefd; - pid_t child_pid; - char* const args[] = {"/usr/bin/base64", "--wrap=0", NULL}; - const char* algoname; - int mpicount; - int pipestatus; - - init_gnutls(); - - init_datum(&data); - - 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(&algolabel); - - 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_x509_privkey_init(&x509_privkey), ret) { - err("Failed to initialize private key structure (error: %d)\n", ret); - return 1; - } - - err("assuming PEM formatted private key\n"); - if (ret = gnutls_x509_privkey_import(x509_privkey, &data, GNUTLS_X509_FMT_PEM), ret) { - err("failed to import the PEM-encoded private key (error: %d)\n", ret); - return ret; - } - - algo = gnutls_x509_privkey_get_pk_algorithm(x509_privkey); - if (algo < 0) { - err("failed to get the algorithm of the PEM-encoded public key (error: %d)\n", algo); - return algo; - } else if (algo == GNUTLS_PK_RSA) { - err("RSA private 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; - } - err("Modulus size %d, exponent size %d\n", m.size, e.size); - } else if (algo == GNUTLS_PK_DSA) { - err("DSA Key, not implemented!!\n", bits); - return 1; - } else { - err("Key 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 are set. Can we - export them as a public subkey packet? */ - - /* this packet should be tagged 14, and should contain: - - 1 octet: version (4) - 4 octets: time of generation (seconds since 1970) - 1 octet: algo (http://tools.ietf.org/html/rfc4880#section-5.5.2 implies 1 for RSA) - - MPI: modulus - MPI: exponent - */ - - packetlen = 1 + 4 + 1; - /* FIXME: this is RSA only. for DSA, there'll be more: */ - packetlen += get_openpgp_mpi_size(&m) + get_openpgp_mpi_size(&e); - - /* FIXME: we should generate this bound more cleanly -- i just - happen to know that 65535 is 2^16-1: */ - if (packetlen > 65535) { - err("packet length is too long (%d)\n", packetlen); - return 1; - } - - /* we're going to emit an old-style packet, with tag 14 (public - subkey), with a two-octet packet length */ - packettag = 0x80 | (14 << 2) | 1; - - write(1, &packettag, sizeof(packettag)); - plen = htons(packetlen); - write(1, &plen, sizeof(plen)); - - openpgpversion = 4; - write(1, &openpgpversion, 1); - - timestamp = time(NULL); - clunkytime = htonl(timestamp); - write(1, &clunkytime, 4); - - /* FIXME: handle things other than RSA */ - openpgpalgo = 1; - write(1, &openpgpalgo, 1); - - write_openpgp_mpi_to_fd(1, &m); - write_openpgp_mpi_to_fd(1, &e); - - gnutls_x509_privkey_deinit(x509_privkey); - gnutls_global_deinit(); - return 0; -} |