*/
#include "includes.h"
-RCSID("$OpenBSD: ssh-keygen.c,v 1.59 2001/04/23 21:57:07 markus Exp $");
+RCSID("$OpenBSD: ssh-keygen.c,v 1.91 2002/01/18 18:14:17 stevesk Exp $");
#include <openssl/evp.h>
#include <openssl/pem.h>
#include "log.h"
#include "readpass.h"
+#ifdef SMARTCARD
+#include <sectok.h>
+#include <openssl/engine.h>
+#include "scard.h"
+#endif
+
/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */
int bits = 1024;
int convert_from_ssh2 = 0;
int print_public = 0;
-/* default to RSA for SSH-1 */
-char *key_type_name = "rsa1";
+char *key_type_name = NULL;
/* argv0 */
#ifdef HAVE___PROGNAME
char hostname[MAXHOSTNAMELEN];
-void
+static void
ask_filename(struct passwd *pw, const char *prompt)
{
char buf[1024];
have_identity = 1;
}
-Key *
-try_load_pem_key(char *filename)
+static Key *
+load_identity(char *filename)
{
char *pass;
Key *prv;
prv = key_load_private(filename, "", NULL);
if (prv == NULL) {
- pass = read_passphrase("Enter passphrase: ", 1);
+ if (identity_passphrase)
+ pass = xstrdup(identity_passphrase);
+ else
+ pass = read_passphrase("Enter passphrase: ",
+ RP_ALLOW_STDIN);
prv = key_load_private(filename, pass, NULL);
memset(pass, 0, strlen(pass));
xfree(pass);
#define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----"
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb
-void
+static void
do_convert_to_ssh2(struct passwd *pw)
{
Key *k;
exit(1);
}
if ((k = key_load_public(identity_file, NULL)) == NULL) {
- if ((k = try_load_pem_key(identity_file)) == NULL) {
+ if ((k = load_identity(identity_file)) == NULL) {
fprintf(stderr, "load failed\n");
exit(1);
}
}
- key_to_blob(k, &blob, &len);
+ if (key_to_blob(k, &blob, &len) <= 0) {
+ fprintf(stderr, "key_to_blob failed\n");
+ exit(1);
+ }
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN);
fprintf(stdout,
"Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n",
exit(0);
}
-void
+static void
buffer_get_bignum_bits(Buffer *b, BIGNUM *value)
{
int bits = buffer_get_int(b);
if (buffer_len(b) < bytes)
fatal("buffer_get_bignum_bits: input buffer too small: "
"need %d have %d", bytes, buffer_len(b));
- BN_bin2bn((u_char *)buffer_ptr(b), bytes, value);
+ BN_bin2bn(buffer_ptr(b), bytes, value);
buffer_consume(b, bytes);
}
-Key *
-do_convert_private_ssh2_from_blob(char *blob, int blen)
+static Key *
+do_convert_private_ssh2_from_blob(u_char *blob, int blen)
{
Buffer b;
Key *key = NULL;
- int ignore, magic, rlen, ktype;
char *type, *cipher;
+ u_char *sig, data[] = "abcde12345";
+ int magic, rlen, ktype, i1, i2, i3, i4;
+ u_int slen;
+ u_long e;
buffer_init(&b);
buffer_append(&b, blob, blen);
buffer_free(&b);
return NULL;
}
- ignore = buffer_get_int(&b);
+ i1 = buffer_get_int(&b);
type = buffer_get_string(&b, NULL);
cipher = buffer_get_string(&b, NULL);
- ignore = buffer_get_int(&b);
- ignore = buffer_get_int(&b);
- ignore = buffer_get_int(&b);
-
+ i2 = buffer_get_int(&b);
+ i3 = buffer_get_int(&b);
+ i4 = buffer_get_int(&b);
+ debug("ignore (%d %d %d %d)", i1,i2,i3,i4);
if (strcmp(cipher, "none") != 0) {
error("unsupported cipher %s", cipher);
xfree(cipher);
buffer_get_bignum_bits(&b, key->dsa->priv_key);
break;
case KEY_RSA:
- if (!BN_set_word(key->rsa->e, (u_long) buffer_get_char(&b))) {
+ e = buffer_get_char(&b);
+ debug("e %lx", e);
+ if (e < 30) {
+ e <<= 8;
+ e += buffer_get_char(&b);
+ debug("e %lx", e);
+ e <<= 8;
+ e += buffer_get_char(&b);
+ debug("e %lx", e);
+ }
+ if (!BN_set_word(key->rsa->e, e)) {
buffer_free(&b);
key_free(key);
return NULL;
buffer_get_bignum_bits(&b, key->rsa->iqmp);
buffer_get_bignum_bits(&b, key->rsa->q);
buffer_get_bignum_bits(&b, key->rsa->p);
- generate_additional_parameters(key->rsa);
+ rsa_generate_additional_parameters(key->rsa);
break;
}
rlen = buffer_len(&b);
- if(rlen != 0)
+ if (rlen != 0)
error("do_convert_private_ssh2_from_blob: "
"remaining bytes in key blob %d", rlen);
buffer_free(&b);
-#ifdef DEBUG_PK
- {
- u_int slen;
- u_char *sig, data[10] = "abcde12345";
- key_sign(key, &sig, &slen, data, sizeof data);
- key_verify(key, sig, slen, data, sizeof data);
- xfree(sig);
- }
-#endif
+ /* try the key */
+ key_sign(key, &sig, &slen, data, sizeof(data));
+ key_verify(key, sig, slen, data, sizeof(data));
+ xfree(sig);
return key;
}
-void
+static void
do_convert_from_ssh2(struct passwd *pw)
{
Key *k;
int blen;
char line[1024], *p;
- char blob[8096];
+ u_char blob[8096];
char encoded[8096];
struct stat st;
int escaped = 0, private = 0, ok;
strstr(line, ": ") != NULL) {
if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL)
private = 1;
- fprintf(stderr, "ignore: %s", line);
+ if (strstr(line, " END ") != NULL) {
+ break;
+ }
+ /* fprintf(stderr, "ignore: %s", line); */
continue;
}
if (escaped) {
escaped--;
- fprintf(stderr, "escaped: %s", line);
+ /* fprintf(stderr, "escaped: %s", line); */
continue;
}
*p = '\0';
strlcat(encoded, line, sizeof(encoded));
}
- blen = uudecode(encoded, (u_char *)blob, sizeof(blob));
+ blen = uudecode(encoded, blob, sizeof(blob));
if (blen < 0) {
fprintf(stderr, "uudecode failed.\n");
exit(1);
exit(1);
}
key_free(k);
- fprintf(stdout, "\n");
+ if (!private)
+ fprintf(stdout, "\n");
fclose(fp);
exit(0);
}
-void
+static void
do_print_public(struct passwd *pw)
{
Key *prv;
perror(identity_file);
exit(1);
}
- prv = try_load_pem_key(identity_file);
+ prv = load_identity(identity_file);
if (prv == NULL) {
fprintf(stderr, "load failed\n");
exit(1);
exit(0);
}
-void
+#ifdef SMARTCARD
+#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); \
+ debug("#bytes %d", len); \
+ if (BN_bn2bin(prv->rsa->x, elements[i]) < 0) \
+ goto done; \
+ } while (0)
+
+static int
+get_AUT0(char *aut0)
+{
+ EVP_MD *evp_md = EVP_sha1();
+ EVP_MD_CTX md;
+ char *pass;
+
+ pass = read_passphrase("Enter passphrase for smartcard: ", RP_ALLOW_STDIN);
+ if (pass == NULL)
+ return -1;
+ EVP_DigestInit(&md, evp_md);
+ EVP_DigestUpdate(&md, pass, strlen(pass));
+ EVP_DigestFinal(&md, aut0, NULL);
+ memset(pass, 0, strlen(pass));
+ xfree(pass);
+ return 0;
+}
+
+static void
+do_upload(struct passwd *pw, const char *sc_reader_id)
+{
+ Key *prv = NULL;
+ struct stat st;
+ u_char *elements[NUM_RSA_KEY_ELEMENTS];
+ u_char key_fid[2];
+ u_char DEFAUT0[] = {0xad, 0x9f, 0x61, 0xfe, 0xfa, 0x20, 0xce, 0x63};
+ u_char AUT0[EVP_MAX_MD_SIZE];
+ int len, status = 1, i, fd = -1, ret;
+ int sw = 0, cla = 0x00;
+
+ for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++)
+ elements[i] = NULL;
+ 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;
+ }
+ 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 = sectok_friendly_open(sc_reader_id, STONOWAIT, &sw);
+ if (fd < 0) {
+ error("sectok_open failed: %s", sectok_get_sw(sw));
+ goto done;
+ }
+ if (! sectok_cardpresent(fd)) {
+ error("smartcard in reader %s not present",
+ sc_reader_id);
+ goto done;
+ }
+ ret = sectok_reset(fd, 0, NULL, &sw);
+ if (ret <= 0) {
+ error("sectok_reset failed: %s", sectok_get_sw(sw));
+ goto done;
+ }
+ if ((cla = cyberflex_inq_class(fd)) < 0) {
+ error("cyberflex_inq_class failed");
+ goto done;
+ }
+ memcpy(AUT0, DEFAUT0, sizeof(DEFAUT0));
+ if (cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 0) {
+ if (get_AUT0(AUT0) < 0 ||
+ cyberflex_verify_AUT0(fd, cla, AUT0, sizeof(DEFAUT0)) < 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,
+ &sw) < 0) {
+ error("cyberflex_load_rsa_priv failed: %s", sectok_get_sw(sw));
+ goto done;
+ }
+ if (!sectok_swOK(sw))
+ 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],
+ &sw) < 0) {
+ error("cyberflex_load_rsa_pub failed: %s", sectok_get_sw(sw));
+ goto done;
+ }
+ if (!sectok_swOK(sw))
+ goto done;
+ log("cyberflex_load_rsa_pub done");
+ status = 0;
+ log("loading key done");
+done:
+
+ memset(elements[0], '\0', BN_num_bytes(prv->rsa->q));
+ memset(elements[1], '\0', BN_num_bytes(prv->rsa->p));
+ memset(elements[2], '\0', BN_num_bytes(prv->rsa->iqmp));
+ memset(elements[3], '\0', BN_num_bytes(prv->rsa->dmq1));
+ memset(elements[4], '\0', BN_num_bytes(prv->rsa->dmp1));
+ memset(elements[5], '\0', BN_num_bytes(prv->rsa->n));
+
+ if (prv)
+ key_free(prv);
+ for (i = 0; i < NUM_RSA_KEY_ELEMENTS; i++)
+ if (elements[i])
+ xfree(elements[i]);
+ if (fd != -1)
+ sectok_close(fd);
+ exit(status);
+}
+
+static void
+do_download(struct passwd *pw, const char *sc_reader_id)
+{
+ Key *pub = NULL;
+
+ pub = sc_get_key(sc_reader_id);
+ if (pub == NULL)
+ fatal("cannot read public key from smartcard");
+ key_write(pub, stdout);
+ key_free(pub);
+ fprintf(stdout, "\n");
+ exit(0);
+}
+#endif /* SMARTCARD */
+
+static void
do_fingerprint(struct passwd *pw)
{
FILE *f;
Key *public;
char *comment = NULL, *cp, *ep, line[16*1024], *fp;
- int i, skip = 0, num = 1, invalid = 1, rep, fptype;
+ int i, skip = 0, num = 1, invalid = 1;
+ enum fp_rep rep;
+ enum fp_type fptype;
struct stat st;
fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5;
fclose(f);
}
if (invalid) {
- printf("%s is not a valid key file.\n", identity_file);
+ printf("%s is not a public key file.\n", identity_file);
exit(1);
}
exit(0);
* Perform changing a passphrase. The argument is the passwd structure
* for the current user.
*/
-void
+static void
do_change_passphrase(struct passwd *pw)
{
char *comment;
if (identity_passphrase)
old_passphrase = xstrdup(identity_passphrase);
else
- old_passphrase = read_passphrase("Enter old passphrase: ", 1);
- private = key_load_private(identity_file, old_passphrase , &comment);
+ old_passphrase =
+ read_passphrase("Enter old passphrase: ",
+ RP_ALLOW_STDIN);
+ private = key_load_private(identity_file, old_passphrase,
+ &comment);
memset(old_passphrase, 0, strlen(old_passphrase));
xfree(old_passphrase);
if (private == NULL) {
passphrase2 = NULL;
} else {
passphrase1 =
- read_passphrase("Enter new passphrase (empty for no passphrase): ", 1);
- passphrase2 = read_passphrase("Enter same passphrase again: ", 1);
+ read_passphrase("Enter new passphrase (empty for no "
+ "passphrase): ", RP_ALLOW_STDIN);
+ passphrase2 = read_passphrase("Enter same passphrase again: ",
+ RP_ALLOW_STDIN);
/* Verify that they are the same. */
if (strcmp(passphrase1, passphrase2) != 0) {
/*
* Change the comment of a private key file.
*/
-void
+static void
do_change_comment(struct passwd *pw)
{
char new_comment[1024], *comment, *passphrase;
else if (identity_new_passphrase)
passphrase = xstrdup(identity_new_passphrase);
else
- passphrase = read_passphrase("Enter passphrase: ", 1);
+ passphrase = read_passphrase("Enter passphrase: ",
+ RP_ALLOW_STDIN);
/* Try to load using the passphrase. */
private = key_load_private(identity_file, passphrase, &comment);
if (private == NULL) {
fprintf(stderr, "Comments are only supported for RSA1 keys.\n");
key_free(private);
exit(1);
- }
+ }
printf("Key now has comment '%s'\n", comment);
if (identity_comment) {
exit(0);
}
-void
+static void
usage(void)
{
- printf("Usage: %s [-ceilpqyB] [-t type] [-b bits] [-f file] [-C comment] "
- "[-N new-pass] [-P pass]\n", __progname);
+ fprintf(stderr, "Usage: %s [options]\n", __progname);
+ fprintf(stderr, "Options:\n");
+ fprintf(stderr, " -b bits Number of bits in the key to create.\n");
+ fprintf(stderr, " -c Change comment in private and public key files.\n");
+ fprintf(stderr, " -e Convert OpenSSH to IETF SECSH key file.\n");
+ fprintf(stderr, " -f filename Filename of the key file.\n");
+ fprintf(stderr, " -i Convert IETF SECSH to OpenSSH key file.\n");
+ fprintf(stderr, " -l Show fingerprint of key file.\n");
+ fprintf(stderr, " -p Change passphrase of private key file.\n");
+ fprintf(stderr, " -q Quiet.\n");
+ fprintf(stderr, " -y Read private key file and print public key.\n");
+ fprintf(stderr, " -t type Specify type of key to create.\n");
+ fprintf(stderr, " -B Show bubblebabble digest of key file.\n");
+ fprintf(stderr, " -C comment Provide new comment.\n");
+ fprintf(stderr, " -N phrase Provide new passphrase.\n");
+ fprintf(stderr, " -P phrase Provide old passphrase.\n");
+#ifdef SMARTCARD
+ fprintf(stderr, " -D reader Download public key from smartcard.\n");
+ fprintf(stderr, " -U reader Upload private key to smartcard.\n");
+#endif /* SMARTCARD */
+
exit(1);
}
int
main(int ac, char **av)
{
- char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2;
+ char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2;
+ char *reader_id = NULL;
Key *private, *public;
struct passwd *pw;
- int opt, type, fd;
struct stat st;
+ int opt, type, fd, download = 0;
FILE *f;
extern int optind;
exit(1);
}
- while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:P:N:C:")) != -1) {
+ while ((opt = getopt(ac, av, "deiqpclBRxXyb:f:t:U:D:P:N:C:")) != -1) {
switch (opt) {
case 'b':
bits = atoi(optarg);
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 'D':
+ download = 1;
+ case 'U':
+ reader_id = optarg;
+ break;
case '?':
default:
usage();
do_convert_from_ssh2(pw);
if (print_public)
do_print_public(pw);
+ if (reader_id != NULL) {
+#ifdef SMARTCARD
+ if (download)
+ do_download(pw, reader_id);
+ else
+ do_upload(pw, reader_id);
+#else /* SMARTCARD */
+ fatal("no support for smartcards.");
+#endif /* SMARTCARD */
+ }
arc4random_stir();
+ if (key_type_name == NULL) {
+ printf("You must specify a key type (-t).\n");
+ usage();
+ }
type = key_type_from_name(key_type_name);
if (type == KEY_UNSPEC) {
fprintf(stderr, "unknown key type %s\n", key_type_name);
else {
passphrase_again:
passphrase1 =
- read_passphrase("Enter passphrase (empty for no passphrase): ", 1);
- passphrase2 = read_passphrase("Enter same passphrase again: ", 1);
+ read_passphrase("Enter passphrase (empty for no "
+ "passphrase): ", RP_ALLOW_STDIN);
+ passphrase2 = read_passphrase("Enter same passphrase again: ",
+ RP_ALLOW_STDIN);
if (strcmp(passphrase1, passphrase2) != 0) {
- /* The passphrases do not match. Clear them and retry. */
+ /*
+ * The passphrases do not match. Clear them and
+ * retry.
+ */
memset(passphrase1, 0, strlen(passphrase1));
memset(passphrase2, 0, strlen(passphrase2));
xfree(passphrase1);
andersk / openssh.git / blobdiff