- markus@cvs.openbsd.org 2001/06/26 02:47:07
[ssh-keygen.c]
allow loading a private RSA key to a cyberflex card.
diff --git a/ssh-keygen.c b/ssh-keygen.c
index 95fcd65..8ae2611 100644
--- a/ssh-keygen.c
+++ b/ssh-keygen.c
@@ -12,11 +12,15 @@
*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-keygen.c,v 1.65 2001/06/24 05:35:33 markus Exp $");
+RCSID("$OpenBSD: ssh-keygen.c,v 1.66 2001/06/26 02:47:07 markus Exp $");
#include <openssl/evp.h>
#include <openssl/pem.h>
+#ifdef SMARTCARD
+#include <sectok.h>
+#endif
+
#include "xmalloc.h"
#include "key.h"
#include "rsa.h"
@@ -28,6 +32,7 @@
#include "log.h"
#include "readpass.h"
+
/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */
int bits = 1024;
@@ -375,6 +380,92 @@
exit(0);
}
+#define NUM_RSA_KEY_ELEMENTS 5+1
+#define COPY_RSA_KEY(x, i) \
+ do { \
+ len = BN_num_bytes(prv->rsa->x); \
+ elements[i] = xmalloc(len); \
+error("#bytes %d", len); \
+ if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \
+ goto done; \
+ } while(0)
+
+static void
+do_upload(struct passwd *pw, int reader)
+{
+#ifndef SMARTCARD
+ fatal("no support for smartcards.");
+#else
+ Key *prv = NULL;
+ struct stat st;
+ u_char *elements[NUM_RSA_KEY_ELEMENTS];
+ u_char key_fid[2];
+ u_char atr[256];
+ u_char AUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63};
+ int len, status = 1, i, fd = -1, ret;
+ int cla = 0x00;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ goto done;
+ }
+ prv = load_identity(identity_file);
+ if (prv == NULL) {
+ error("load failed");
+ goto done;
+ }
+{
+ prv->type = KEY_RSA;
+ key_write(prv, stderr);
+}
+ for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++)
+ elements[i] = NULL;
+ COPY_RSA_KEY(q, 0);
+ COPY_RSA_KEY(p, 1);
+ COPY_RSA_KEY(iqmp, 2);
+ COPY_RSA_KEY(dmq1, 3);
+ COPY_RSA_KEY(dmp1, 4);
+ COPY_RSA_KEY(n, 5);
+ len = BN_num_bytes(prv->rsa->n);
+ fd = scopen(reader, 0, NULL);
+ if (fd < 0) {
+ error("scopen failed %d.", fd);
+ goto done;
+ }
+ ret = screset(fd, atr, NULL);
+ if (ret <= 0) {
+ error("screset failed.");
+ goto done;
+ }
+ if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(AUT0)) < 0) {
+ error("cyberflex_verify_AUT0 failed");
+ goto done;
+ }
+ key_fid[0] = 0x00;
+ key_fid[1] = 0x12;
+ if (cyberflex_load_rsa_priv(fd, cla, key_fid, 5, 8*len, elements) < 0)
+ goto done;
+ log("cyberflex_load_rsa_priv done");
+ key_fid[0] = 0x73;
+ key_fid[1] = 0x68;
+ if (cyberflex_load_rsa_pub(fd, cla, key_fid, len, elements[5]) < 0)
+ goto done;
+ log("cyberflex_load_rsa_pub done");
+ status = 0;
+ log("loading key done");
+done:
+ if (prv)
+ key_free(prv);
+ for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++)
+ xfree(elements[i]);
+ if (fd != -1)
+ scclose(fd);
+ exit(status);
+#endif
+}
+
static void
do_fingerprint(struct passwd *pw)
{
@@ -664,7 +755,7 @@
char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2;
Key *private, *public;
struct passwd *pw;
- int opt, type, fd;
+ int opt, type, fd, reader = -1;
struct stat st;
FILE *f;
@@ -688,7 +779,7 @@
exit(1);
}
- while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:P:N:C:")) != -1) {
+ while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:u:P:N:C:")) != -1) {
switch (opt) {
case 'b':
bits = atoi(optarg);
@@ -697,73 +788,60 @@
exit(1);
}
break;
-
case 'l':
print_fingerprint = 1;
break;
-
case 'B':
print_bubblebabble = 1;
break;
-
case 'p':
change_passphrase = 1;
break;
-
case 'c':
change_comment = 1;
break;
-
case 'f':
strlcpy(identity_file, optarg, sizeof(identity_file));
have_identity = 1;
break;
-
case 'P':
identity_passphrase = optarg;
break;
-
case 'N':
identity_new_passphrase = optarg;
break;
-
case 'C':
identity_comment = optarg;
break;
-
case 'q':
quiet = 1;
break;
-
case 'R':
/* unused */
exit(0);
break;
-
case 'e':
case 'x':
/* export key */
convert_to_ssh2 = 1;
break;
-
case 'i':
case 'X':
/* import key */
convert_from_ssh2 = 1;
break;
-
case 'y':
print_public = 1;
break;
-
case 'd':
key_type_name = "dsa";
break;
-
case 't':
key_type_name = optarg;
break;
-
+ case 'u':
+ reader = atoi(optarg); /*XXX*/
+ break;
case '?':
default:
usage();
@@ -789,6 +867,8 @@
do_convert_from_ssh2(pw);
if (print_public)
do_print_public(pw);
+ if (reader != -1)
+ do_upload(pw, reader);
arc4random_stir();