* Author: Tatu Ylonen <ylo@cs.hut.fi>
* Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
* All rights reserved
- * Created: Mon Mar 27 02:26:40 1995 ylo
* Identity and host key generation and maintenance.
+ *
+ * As far as I am concerned, the code I have written for this software
+ * can be used freely for any purpose. Any derived versions of this
+ * software must be clearly marked as such, and if the derived work is
+ * incompatible with the protocol description in the RFC file, it must be
+ * called by a name other than "ssh" or "Secure Shell".
*/
#include "includes.h"
-RCSID("$Id$");
+RCSID("$OpenBSD: ssh-keygen.c,v 1.101 2002/06/23 09:39:55 deraadt Exp $");
-#include "rsa.h"
-#include "ssh.h"
-#include "xmalloc.h"
-#include "fingerprint.h"
-
-/* Generated private key. */
-RSA *private_key;
+#include <openssl/evp.h>
+#include <openssl/pem.h>
-/* Generated public key. */
-RSA *public_key;
-
-/* Number of bits in the RSA key. This value can be changed on the command line. */
+#include "xmalloc.h"
+#include "key.h"
+#include "rsa.h"
+#include "authfile.h"
+#include "uuencode.h"
+#include "buffer.h"
+#include "bufaux.h"
+#include "pathnames.h"
+#include "log.h"
+#include "readpass.h"
+
+#ifdef SMARTCARD
+#include "scard.h"
+#endif
+
+/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */
int bits = 1024;
/*
/* Flag indicating that we just want to see the key fingerprint */
int print_fingerprint = 0;
+int print_bubblebabble = 0;
/* The identity file name, given on the command line or entered by the user. */
char identity_file[1024];
/* This is set to the new comment if given on the command line. */
char *identity_comment = NULL;
+/* Dump public key file in format used by real and the original SSH 2 */
+int convert_to_ssh2 = 0;
+int convert_from_ssh2 = 0;
+int print_public = 0;
+
+char *key_type_name = NULL;
+
/* argv0 */
#ifdef HAVE___PROGNAME
extern char *__progname;
-#else /* HAVE___PROGNAME */
-const char *__progname = "ssh-keygen";
-#endif /* HAVE___PROGNAME */
+#else
+char *__progname;
+#endif
+
+char hostname[MAXHOSTNAMELEN];
-void
+static void
ask_filename(struct passwd *pw, const char *prompt)
{
char buf[1024];
- snprintf(identity_file, sizeof(identity_file), "%s/%s",
- pw->pw_dir, SSH_CLIENT_IDENTITY);
- printf("%s (%s): ", prompt, identity_file);
- fflush(stdout);
+ char *name = NULL;
+
+ if (key_type_name == NULL)
+ name = _PATH_SSH_CLIENT_ID_RSA;
+ else
+ switch (key_type_from_name(key_type_name)) {
+ case KEY_RSA1:
+ name = _PATH_SSH_CLIENT_IDENTITY;
+ break;
+ case KEY_DSA:
+ name = _PATH_SSH_CLIENT_ID_DSA;
+ break;
+ case KEY_RSA:
+ name = _PATH_SSH_CLIENT_ID_RSA;
+ break;
+ default:
+ fprintf(stderr, "bad key type");
+ exit(1);
+ break;
+ }
+
+ snprintf(identity_file, sizeof(identity_file), "%s/%s", pw->pw_dir, name);
+ fprintf(stderr, "%s (%s): ", prompt, identity_file);
+ fflush(stderr);
if (fgets(buf, sizeof(buf), stdin) == NULL)
exit(1);
if (strchr(buf, '\n'))
have_identity = 1;
}
-void
+static Key *
+load_identity(char *filename)
+{
+ char *pass;
+ Key *prv;
+
+ prv = key_load_private(filename, "", NULL);
+ if (prv == NULL) {
+ 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);
+ }
+ return prv;
+}
+
+#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----"
+#define SSH_COM_PUBLIC_END "---- END SSH2 PUBLIC KEY ----"
+#define SSH_COM_PRIVATE_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----"
+#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb
+
+static void
+do_convert_to_ssh2(struct passwd *pw)
+{
+ Key *k;
+ u_int len;
+ u_char *blob;
+ struct stat st;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ if ((k = key_load_public(identity_file, NULL)) == NULL) {
+ if ((k = load_identity(identity_file)) == NULL) {
+ fprintf(stderr, "load failed\n");
+ exit(1);
+ }
+ }
+ 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: \"%u-bit %s, converted from OpenSSH by %s@%s\"\n",
+ key_size(k), key_type(k),
+ pw->pw_name, hostname);
+ dump_base64(stdout, blob, len);
+ fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END);
+ key_free(k);
+ xfree(blob);
+ exit(0);
+}
+
+static void
+buffer_get_bignum_bits(Buffer *b, BIGNUM *value)
+{
+ int bits = buffer_get_int(b);
+ int bytes = (bits + 7) / 8;
+
+ if (buffer_len(b) < bytes)
+ fatal("buffer_get_bignum_bits: input buffer too small: "
+ "need %d have %d", bytes, buffer_len(b));
+ BN_bin2bn(buffer_ptr(b), bytes, value);
+ buffer_consume(b, bytes);
+}
+
+static Key *
+do_convert_private_ssh2_from_blob(u_char *blob, u_int blen)
+{
+ Buffer b;
+ Key *key = NULL;
+ 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);
+
+ magic = buffer_get_int(&b);
+ if (magic != SSH_COM_PRIVATE_KEY_MAGIC) {
+ error("bad magic 0x%x != 0x%x", magic, SSH_COM_PRIVATE_KEY_MAGIC);
+ buffer_free(&b);
+ return NULL;
+ }
+ i1 = buffer_get_int(&b);
+ type = buffer_get_string(&b, NULL);
+ cipher = buffer_get_string(&b, NULL);
+ 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_free(&b);
+ xfree(type);
+ return NULL;
+ }
+ xfree(cipher);
+
+ if (strstr(type, "dsa")) {
+ ktype = KEY_DSA;
+ } else if (strstr(type, "rsa")) {
+ ktype = KEY_RSA;
+ } else {
+ xfree(type);
+ return NULL;
+ }
+ key = key_new_private(ktype);
+ xfree(type);
+
+ switch (key->type) {
+ case KEY_DSA:
+ buffer_get_bignum_bits(&b, key->dsa->p);
+ buffer_get_bignum_bits(&b, key->dsa->g);
+ buffer_get_bignum_bits(&b, key->dsa->q);
+ buffer_get_bignum_bits(&b, key->dsa->pub_key);
+ buffer_get_bignum_bits(&b, key->dsa->priv_key);
+ break;
+ case KEY_RSA:
+ 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->d);
+ buffer_get_bignum_bits(&b, key->rsa->n);
+ buffer_get_bignum_bits(&b, key->rsa->iqmp);
+ buffer_get_bignum_bits(&b, key->rsa->q);
+ buffer_get_bignum_bits(&b, key->rsa->p);
+ rsa_generate_additional_parameters(key->rsa);
+ break;
+ }
+ rlen = buffer_len(&b);
+ if (rlen != 0)
+ error("do_convert_private_ssh2_from_blob: "
+ "remaining bytes in key blob %d", rlen);
+ buffer_free(&b);
+
+ /* try the key */
+ key_sign(key, &sig, &slen, data, sizeof(data));
+ key_verify(key, sig, slen, data, sizeof(data));
+ xfree(sig);
+ return key;
+}
+
+static void
+do_convert_from_ssh2(struct passwd *pw)
+{
+ Key *k;
+ int blen;
+ u_int len;
+ char line[1024], *p;
+ u_char blob[8096];
+ char encoded[8096];
+ struct stat st;
+ int escaped = 0, private = 0, ok;
+ FILE *fp;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ fp = fopen(identity_file, "r");
+ if (fp == NULL) {
+ perror(identity_file);
+ exit(1);
+ }
+ encoded[0] = '\0';
+ while (fgets(line, sizeof(line), fp)) {
+ if (!(p = strchr(line, '\n'))) {
+ fprintf(stderr, "input line too long.\n");
+ exit(1);
+ }
+ if (p > line && p[-1] == '\\')
+ escaped++;
+ if (strncmp(line, "----", 4) == 0 ||
+ strstr(line, ": ") != NULL) {
+ if (strstr(line, SSH_COM_PRIVATE_BEGIN) != NULL)
+ private = 1;
+ if (strstr(line, " END ") != NULL) {
+ break;
+ }
+ /* fprintf(stderr, "ignore: %s", line); */
+ continue;
+ }
+ if (escaped) {
+ escaped--;
+ /* fprintf(stderr, "escaped: %s", line); */
+ continue;
+ }
+ *p = '\0';
+ strlcat(encoded, line, sizeof(encoded));
+ }
+ len = strlen(encoded);
+ if (((len % 4) == 3) &&
+ (encoded[len-1] == '=') &&
+ (encoded[len-2] == '=') &&
+ (encoded[len-3] == '='))
+ encoded[len-3] = '\0';
+ blen = uudecode(encoded, blob, sizeof(blob));
+ if (blen < 0) {
+ fprintf(stderr, "uudecode failed.\n");
+ exit(1);
+ }
+ k = private ?
+ do_convert_private_ssh2_from_blob(blob, blen) :
+ key_from_blob(blob, blen);
+ if (k == NULL) {
+ fprintf(stderr, "decode blob failed.\n");
+ exit(1);
+ }
+ ok = private ?
+ (k->type == KEY_DSA ?
+ PEM_write_DSAPrivateKey(stdout, k->dsa, NULL, NULL, 0, NULL, NULL) :
+ PEM_write_RSAPrivateKey(stdout, k->rsa, NULL, NULL, 0, NULL, NULL)) :
+ key_write(k, stdout);
+ if (!ok) {
+ fprintf(stderr, "key write failed");
+ exit(1);
+ }
+ key_free(k);
+ if (!private)
+ fprintf(stdout, "\n");
+ fclose(fp);
+ exit(0);
+}
+
+static void
+do_print_public(struct passwd *pw)
+{
+ Key *prv;
+ struct stat st;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ prv = load_identity(identity_file);
+ if (prv == NULL) {
+ fprintf(stderr, "load failed\n");
+ exit(1);
+ }
+ if (!key_write(prv, stdout))
+ fprintf(stderr, "key_write failed");
+ key_free(prv);
+ fprintf(stdout, "\n");
+ exit(0);
+}
+
+#ifdef SMARTCARD
+static void
+do_upload(struct passwd *pw, const char *sc_reader_id)
+{
+ Key *prv = NULL;
+ struct stat st;
+ int ret;
+
+ if (!have_identity)
+ ask_filename(pw, "Enter file in which the key is");
+ if (stat(identity_file, &st) < 0) {
+ perror(identity_file);
+ exit(1);
+ }
+ prv = load_identity(identity_file);
+ if (prv == NULL) {
+ error("load failed");
+ exit(1);
+ }
+ ret = sc_put_key(prv, sc_reader_id);
+ key_free(prv);
+ if (ret < 0)
+ exit(1);
+ log("loading key done");
+ exit(0);
+}
+
+static void
+do_download(struct passwd *pw, const char *sc_reader_id)
+{
+ Key **keys = NULL;
+ int i;
+
+ keys = sc_get_keys(sc_reader_id, NULL);
+ if (keys == NULL)
+ fatal("cannot read public key from smartcard");
+ for (i = 0; keys[i]; i++) {
+ key_write(keys[i], stdout);
+ key_free(keys[i]);
+ fprintf(stdout, "\n");
+ }
+ xfree(keys);
+ exit(0);
+}
+#endif /* SMARTCARD */
+
+static void
do_fingerprint(struct passwd *pw)
{
FILE *f;
- BIGNUM *e, *n;
- RSA *public_key;
- char *comment = NULL, *cp, *ep, line[16*1024];
+ Key *public;
+ char *comment = NULL, *cp, *ep, line[16*1024], *fp;
int i, skip = 0, num = 1, invalid = 1;
- unsigned int ignore;
+ enum fp_rep rep;
+ enum fp_type fptype;
struct stat st;
+ fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5;
+ rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX;
+
if (!have_identity)
ask_filename(pw, "Enter file in which the key is");
if (stat(identity_file, &st) < 0) {
perror(identity_file);
exit(1);
}
-
- public_key = RSA_new();
- if (load_public_key(identity_file, public_key, &comment)) {
- printf("%d %s %s\n", BN_num_bits(public_key->n),
- fingerprint(public_key->e, public_key->n),
- comment);
- RSA_free(public_key);
+ public = key_load_public(identity_file, &comment);
+ if (public != NULL) {
+ fp = key_fingerprint(public, fptype, rep);
+ printf("%u %s %s\n", key_size(public), fp, comment);
+ key_free(public);
+ xfree(comment);
+ xfree(fp);
exit(0);
}
- RSA_free(public_key);
+ if (comment)
+ xfree(comment);
f = fopen(identity_file, "r");
if (f != NULL) {
- n = BN_new();
- e = BN_new();
while (fgets(line, sizeof(line), f)) {
i = strlen(line) - 1;
if (line[i] != '\n') {
if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) {
int quoted = 0;
comment = cp;
- for (; *cp && (quoted || (*cp != ' ' && *cp != '\t')); cp++) {
+ for (; *cp && (quoted || (*cp != ' ' &&
+ *cp != '\t')); cp++) {
if (*cp == '\\' && cp[1] == '"')
cp++; /* Skip both */
else if (*cp == '"')
*cp++ = '\0';
}
ep = cp;
- if (auth_rsa_read_key(&cp, &ignore, e, n)) {
- invalid = 0;
- comment = *cp ? cp : comment;
- printf("%d %s %s\n", BN_num_bits(n),
- fingerprint(e, n),
- comment ? comment : "no comment");
+ public = key_new(KEY_RSA1);
+ if (key_read(public, &cp) != 1) {
+ cp = ep;
+ key_free(public);
+ public = key_new(KEY_UNSPEC);
+ if (key_read(public, &cp) != 1) {
+ key_free(public);
+ continue;
+ }
}
+ comment = *cp ? cp : comment;
+ fp = key_fingerprint(public, fptype, rep);
+ printf("%u %s %s\n", key_size(public), fp,
+ comment ? comment : "no comment");
+ xfree(fp);
+ key_free(public);
+ invalid = 0;
}
- BN_free(e);
- BN_free(n);
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;
char *old_passphrase, *passphrase1, *passphrase2;
struct stat st;
- RSA *private_key;
+ Key *private;
if (!have_identity)
ask_filename(pw, "Enter file in which the key is");
perror(identity_file);
exit(1);
}
- public_key = RSA_new();
- if (!load_public_key(identity_file, public_key, NULL)) {
- printf("%s is not a valid key file.\n", identity_file);
- exit(1);
- }
- /* Clear the public key since we are just about to load the whole file. */
- RSA_free(public_key);
-
/* Try to load the file with empty passphrase. */
- private_key = RSA_new();
- if (!load_private_key(identity_file, "", private_key, &comment)) {
+ private = key_load_private(identity_file, "", &comment);
+ if (private == NULL) {
if (identity_passphrase)
old_passphrase = xstrdup(identity_passphrase);
else
- old_passphrase = read_passphrase("Enter old passphrase: ", 1);
- if (!load_private_key(identity_file, old_passphrase, private_key, &comment)) {
- memset(old_passphrase, 0, strlen(old_passphrase));
- xfree(old_passphrase);
+ 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) {
printf("Bad passphrase.\n");
exit(1);
}
- memset(old_passphrase, 0, strlen(old_passphrase));
- xfree(old_passphrase);
}
printf("Key has comment '%s'\n", comment);
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) {
}
/* Save the file using the new passphrase. */
- if (!save_private_key(identity_file, passphrase1, private_key, comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ if (!key_save_private(private, identity_file, passphrase1, comment)) {
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase1, 0, strlen(passphrase1));
xfree(passphrase1);
- RSA_free(private_key);
+ key_free(private);
xfree(comment);
exit(1);
}
/* Destroy the passphrase and the copy of the key in memory. */
memset(passphrase1, 0, strlen(passphrase1));
xfree(passphrase1);
- RSA_free(private_key); /* Destroys contents */
+ key_free(private); /* Destroys contents */
xfree(comment);
printf("Your identification has been saved with the new passphrase.\n");
/*
* Change the comment of a private key file.
*/
-void
+static void
do_change_comment(struct passwd *pw)
{
- char new_comment[1024], *comment;
- RSA *private_key;
- char *passphrase;
+ char new_comment[1024], *comment, *passphrase;
+ Key *private;
+ Key *public;
struct stat st;
FILE *f;
- char *tmpbuf;
+ int fd;
if (!have_identity)
ask_filename(pw, "Enter file in which the key is");
perror(identity_file);
exit(1);
}
- /*
- * Try to load the public key from the file the verify that it is
- * readable and of the proper format.
- */
- public_key = RSA_new();
- if (!load_public_key(identity_file, public_key, NULL)) {
- printf("%s is not a valid key file.\n", identity_file);
- exit(1);
- }
- private_key = RSA_new();
-
- if (load_private_key(identity_file, "", private_key, &comment))
- passphrase = xstrdup("");
- else {
+ private = key_load_private(identity_file, "", &comment);
+ if (private == NULL) {
if (identity_passphrase)
passphrase = xstrdup(identity_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. */
- if (!load_private_key(identity_file, passphrase, private_key, &comment)) {
+ private = key_load_private(identity_file, passphrase, &comment);
+ if (private == NULL) {
memset(passphrase, 0, strlen(passphrase));
xfree(passphrase);
printf("Bad passphrase.\n");
exit(1);
}
+ } else {
+ passphrase = xstrdup("");
+ }
+ if (private->type != KEY_RSA1) {
+ fprintf(stderr, "Comments are only supported for RSA1 keys.\n");
+ key_free(private);
+ exit(1);
}
printf("Key now has comment '%s'\n", comment);
fflush(stdout);
if (!fgets(new_comment, sizeof(new_comment), stdin)) {
memset(passphrase, 0, strlen(passphrase));
- RSA_free(private_key);
+ key_free(private);
exit(1);
}
if (strchr(new_comment, '\n'))
}
/* Save the file using the new passphrase. */
- if (!save_private_key(identity_file, passphrase, private_key, new_comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ if (!key_save_private(private, identity_file, passphrase, new_comment)) {
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase, 0, strlen(passphrase));
xfree(passphrase);
- RSA_free(private_key);
+ key_free(private);
xfree(comment);
exit(1);
}
memset(passphrase, 0, strlen(passphrase));
xfree(passphrase);
- RSA_free(private_key);
+ public = key_from_private(private);
+ key_free(private);
strlcat(identity_file, ".pub", sizeof(identity_file));
- f = fopen(identity_file, "w");
- if (!f) {
+ fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ if (fd == -1) {
printf("Could not save your public key in %s\n", identity_file);
exit(1);
}
- fprintf(f, "%d ", BN_num_bits(public_key->n));
- tmpbuf = BN_bn2dec(public_key->e);
- fprintf(f, "%s ", tmpbuf);
- free(tmpbuf);
- tmpbuf = BN_bn2dec(public_key->n);
- fprintf(f, "%s %s\n", tmpbuf, new_comment);
- free(tmpbuf);
+ f = fdopen(fd, "w");
+ if (f == NULL) {
+ printf("fdopen %s failed", identity_file);
+ exit(1);
+ }
+ if (!key_write(public, f))
+ fprintf(stderr, "write key failed");
+ key_free(public);
+ fprintf(f, " %s\n", new_comment);
fclose(f);
xfree(comment);
exit(0);
}
-void
+static void
usage(void)
{
- printf("ssh-keygen version %s\n", SSH_VERSION);
- printf("Usage: %s [-b bits] [-p] [-c] [-l] [-f file] [-P pass] [-N new-pass] [-C comment]\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;
- char *tmpbuf;
- int opt;
struct stat st;
+ int opt, type, fd, download = 0;
FILE *f;
- char hostname[MAXHOSTNAMELEN];
+
extern int optind;
extern char *optarg;
- /* check if RSA support exists */
- if (rsa_alive() == 0) {
- fprintf(stderr,
- "%s: no RSA support in libssl and libcrypto. See ssl(8).\n",
- __progname);
- exit(1);
- }
+ __progname = get_progname(av[0]);
+
+ SSLeay_add_all_algorithms();
+ init_rng();
+ seed_rng();
+
/* we need this for the home * directory. */
pw = getpwuid(getuid());
if (!pw) {
printf("You don't exist, go away!\n");
exit(1);
}
+ if (gethostname(hostname, sizeof(hostname)) < 0) {
+ perror("gethostname");
+ exit(1);
+ }
- while ((opt = getopt(ac, av, "qpclb:f:P:N:C:")) != EOF) {
+ 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();
printf("Can only have one of -p and -c.\n");
usage();
}
- if (print_fingerprint)
+ if (print_fingerprint || print_bubblebabble)
do_fingerprint(pw);
if (change_passphrase)
do_change_passphrase(pw);
if (change_comment)
do_change_comment(pw);
+ if (convert_to_ssh2)
+ do_convert_to_ssh2(pw);
+ if (convert_from_ssh2)
+ 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 (quiet)
- rsa_set_verbose(0);
-
- /* Generate the rsa key pair. */
- private_key = RSA_new();
- public_key = RSA_new();
- rsa_generate_key(private_key, public_key, bits);
+ 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);
+ exit(1);
+ }
+ if (!quiet)
+ printf("Generating public/private %s key pair.\n", key_type_name);
+ private = key_generate(type, bits);
+ if (private == NULL) {
+ fprintf(stderr, "key_generate failed");
+ exit(1);
+ }
+ public = key_from_private(private);
if (!have_identity)
ask_filename(pw, "Enter file in which to save the key");
/* Create ~/.ssh directory if it doesn\'t already exist. */
- snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, SSH_USER_DIR);
+ snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", pw->pw_dir, _PATH_SSH_USER_DIR);
if (strstr(identity_file, dotsshdir) != NULL &&
stat(dotsshdir, &st) < 0) {
- if (mkdir(dotsshdir, 0755) < 0)
+ if (mkdir(dotsshdir, 0700) < 0)
error("Could not create directory '%s'.", dotsshdir);
else if (!quiet)
printf("Created directory '%s'.\n", dotsshdir);
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);
strlcpy(comment, identity_comment, sizeof(comment));
} else {
/* Create default commend field for the passphrase. */
- if (gethostname(hostname, sizeof(hostname)) < 0) {
- perror("gethostname");
- exit(1);
- }
snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname);
}
/* Save the key with the given passphrase and comment. */
- if (!save_private_key(identity_file, passphrase1, private_key, comment)) {
- printf("Saving the key failed: %s: %s.\n",
- identity_file, strerror(errno));
+ if (!key_save_private(private, identity_file, passphrase1, comment)) {
+ printf("Saving the key failed: %s.\n", identity_file);
memset(passphrase1, 0, strlen(passphrase1));
xfree(passphrase1);
exit(1);
xfree(passphrase1);
/* Clear the private key and the random number generator. */
- RSA_free(private_key);
+ key_free(private);
arc4random_stir();
if (!quiet)
printf("Your identification has been saved in %s.\n", identity_file);
strlcat(identity_file, ".pub", sizeof(identity_file));
- f = fopen(identity_file, "w");
- if (!f) {
+ fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ if (fd == -1) {
printf("Could not save your public key in %s\n", identity_file);
exit(1);
}
- fprintf(f, "%d ", BN_num_bits(public_key->n));
- tmpbuf = BN_bn2dec(public_key->e);
- fprintf(f, "%s ", tmpbuf);
- free(tmpbuf);
- tmpbuf = BN_bn2dec(public_key->n);
- fprintf(f, "%s %s\n", tmpbuf, comment);
- free(tmpbuf);
+ f = fdopen(fd, "w");
+ if (f == NULL) {
+ printf("fdopen %s failed", identity_file);
+ exit(1);
+ }
+ if (!key_write(public, f))
+ fprintf(stderr, "write key failed");
+ fprintf(f, " %s\n", comment);
fclose(f);
if (!quiet) {
- printf("Your public key has been saved in %s.\n", identity_file);
+ char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX);
+ printf("Your public key has been saved in %s.\n",
+ identity_file);
printf("The key fingerprint is:\n");
- printf("%d %s %s\n", BN_num_bits(public_key->n),
- fingerprint(public_key->e, public_key->n),
- comment);
+ printf("%s %s\n", fp, comment);
+ xfree(fp);
}
+
+ key_free(public);
exit(0);
}
andersk / openssh.git / blobdiff