*/
#include "includes.h"
-#ifdef SMARTCARD
-RCSID("$OpenBSD: scard.c,v 1.23 2002/03/24 18:05:29 markus Exp $");
+#if defined(SMARTCARD) && defined(USE_SECTOK)
+RCSID("$OpenBSD: scard.c,v 1.26 2002/06/23 03:30:17 deraadt Exp $");
-#include <openssl/engine.h>
#include <openssl/evp.h>
#include <sectok.h>
#include "readpass.h"
#include "scard.h"
-#ifdef OPENSSL_VERSION_NUMBER
-#if OPENSSL_VERSION_NUMBER >= 0x00907000L
-#define RSA_get_default_openssl_method RSA_get_default_method
-#define DSA_get_default_openssl_method DSA_get_default_method
-#define DH_get_default_openssl_method DH_get_default_method
-#define ENGINE_set_BN_mod_exp(x,y)
+#if OPENSSL_VERSION_NUMBER < 0x00907000L
+#define USE_ENGINE
+#define RSA_get_default_method RSA_get_default_openssl_method
+#else
#endif
+
+#ifdef USE_ENGINE
+#include <openssl/engine.h>
+#define sc_get_rsa sc_get_engine
+#else
+#define sc_get_rsa sc_get_rsa_method
#endif
#define CLA_SSH 0x05
static void sc_mk_digest(const char *pin, u_char *digest);
static int get_AUT0(u_char *aut0);
+static int try_AUT0(void);
/* interface to libsectok */
n = NULL;
if (sc_fd < 0) {
- status = sc_init();
- if (status < 0 )
+ if (sc_init() < 0)
goto err;
}
n = xmalloc(len);
/* get n */
sectok_apdu(sc_fd, CLA_SSH, INS_GET_PUBKEY, 0, 0, 0, NULL, len, n, &sw);
+
+ if (sw == 0x6982) {
+ if (try_AUT0() < 0)
+ goto err;
+ sectok_apdu(sc_fd, CLA_SSH, INS_GET_PUBKEY, 0, 0, 0, NULL, len, n, &sw);
+ }
if (!sectok_swOK(sw)) {
error("could not obtain public key: %s", sectok_get_sw(sw));
goto err;
status = 0;
p = key_fingerprint(k, SSH_FP_MD5, SSH_FP_HEX);
- debug("fingerprint %d %s", key_size(k), p);
+ debug("fingerprint %u %s", key_size(k), p);
xfree(p);
err:
return status;
}
-static int
-try_AUT0(void)
-{
- u_char aut0[EVP_MAX_MD_SIZE];
-
- /* permission denied; try PIN if provided */
- if (sc_pin && strlen(sc_pin) > 0) {
- sc_mk_digest(sc_pin, aut0);
- if (cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) {
- error("smartcard passphrase incorrect");
- return (-1);
- }
- } else {
- /* try default AUT0 key */
- if (cyberflex_verify_AUT0(sc_fd, cla, DEFAUT0, 8) < 0) {
- /* default AUT0 key failed; prompt for passphrase */
- if (get_AUT0(aut0) < 0 ||
- cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) {
- error("smartcard passphrase incorrect");
- return (-1);
- }
- }
- }
- return (0);
-}
-
/* private key operations */
static int
return 1;
}
-
/* engine for overloading private key operations */
-static ENGINE *smart_engine = NULL;
-static RSA_METHOD smart_rsa;
-
-ENGINE *
-sc_get_engine(void)
+static RSA_METHOD *
+sc_get_rsa_method(void)
{
- const RSA_METHOD *def;
-
- def = RSA_get_default_openssl_method();
+ static RSA_METHOD smart_rsa;
+ const RSA_METHOD *def = RSA_get_default_method();
/* use the OpenSSL version */
memcpy(&smart_rsa, def, sizeof(smart_rsa));
orig_finish = def->finish;
smart_rsa.finish = sc_finish;
+ return &smart_rsa;
+}
+
+#ifdef USE_ENGINE
+static ENGINE *
+sc_get_engine(void)
+{
+ static ENGINE *smart_engine = NULL;
+
if ((smart_engine = ENGINE_new()) == NULL)
fatal("ENGINE_new failed");
ENGINE_set_id(smart_engine, "sectok");
ENGINE_set_name(smart_engine, "libsectok");
- ENGINE_set_RSA(smart_engine, &smart_rsa);
+ ENGINE_set_RSA(smart_engine, sc_get_rsa_method());
ENGINE_set_DSA(smart_engine, DSA_get_default_openssl_method());
ENGINE_set_DH(smart_engine, DH_get_default_openssl_method());
ENGINE_set_RAND(smart_engine, RAND_SSLeay());
return smart_engine;
}
+#endif
void
sc_close(void)
}
}
-Key *
-sc_get_key(const char *id, const char *pin)
+Key **
+sc_get_keys(const char *id, const char *pin)
{
- Key *k;
- int status;
+ Key *k, *n, **keys;
+ int status, nkeys = 2;
if (sc_reader_id != NULL)
xfree(sc_reader_id);
key_free(k);
return NULL;
}
- return k;
+ keys = xmalloc((nkeys+1) * sizeof(Key *));
+
+ n = key_new(KEY_RSA1);
+ BN_copy(n->rsa->n, k->rsa->n);
+ BN_copy(n->rsa->e, k->rsa->e);
+ RSA_set_method(n->rsa, sc_get_rsa());
+ n->flags |= KEY_FLAG_EXT;
+ keys[0] = n;
+
+ n = key_new(KEY_RSA);
+ BN_copy(n->rsa->n, k->rsa->n);
+ BN_copy(n->rsa->e, k->rsa->e);
+ RSA_set_method(n->rsa, sc_get_rsa());
+ n->flags |= KEY_FLAG_EXT;
+ keys[1] = n;
+
+ keys[2] = NULL;
+
+ key_free(k);
+ return keys;
}
#define NUM_RSA_KEY_ELEMENTS 5+1
return 0;
}
+static int
+try_AUT0(void)
+{
+ u_char aut0[EVP_MAX_MD_SIZE];
+
+ /* permission denied; try PIN if provided */
+ if (sc_pin && strlen(sc_pin) > 0) {
+ sc_mk_digest(sc_pin, aut0);
+ if (cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) {
+ error("smartcard passphrase incorrect");
+ return (-1);
+ }
+ } else {
+ /* try default AUT0 key */
+ if (cyberflex_verify_AUT0(sc_fd, cla, DEFAUT0, 8) < 0) {
+ /* default AUT0 key failed; prompt for passphrase */
+ if (get_AUT0(aut0) < 0 ||
+ cyberflex_verify_AUT0(sc_fd, cla, aut0, 8) < 0) {
+ error("smartcard passphrase incorrect");
+ return (-1);
+ }
+ }
+ }
+ return (0);
+}
+
int
sc_put_key(Key *prv, const char *id)
{
sectok_close(fd);
return (status);
}
-#endif /* SMARTCARD */
+#endif /* SMARTCARD && USE_SECTOK */