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-rw-r--r--crypto/openssh/ssh-keygen.c1004
1 files changed, 0 insertions, 1004 deletions
diff --git a/crypto/openssh/ssh-keygen.c b/crypto/openssh/ssh-keygen.c
deleted file mode 100644
index 4273c11321c8..000000000000
--- a/crypto/openssh/ssh-keygen.c
+++ /dev/null
@@ -1,1004 +0,0 @@
-/*
- * Author: Tatu Ylonen <ylo@cs.hut.fi>
- * Copyright (c) 1994 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
- * All rights reserved
- * 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("$OpenBSD: ssh-keygen.c,v 1.101 2002/06/23 09:39:55 deraadt Exp $");
-
-#include <openssl/evp.h>
-#include <openssl/pem.h>
-
-#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 change the passphrase. This can be
- * set on the command line.
- */
-int change_passphrase = 0;
-
-/*
- * Flag indicating that we just want to change the comment. This can be set
- * on the command line.
- */
-int change_comment = 0;
-
-int quiet = 0;
-
-/* 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];
-int have_identity = 0;
-
-/* This is set to the passphrase if given on the command line. */
-char *identity_passphrase = NULL;
-
-/* This is set to the new passphrase if given on the command line. */
-char *identity_new_passphrase = NULL;
-
-/* 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
-char *__progname;
-#endif
-
-char hostname[MAXHOSTNAMELEN];
-
-static void
-ask_filename(struct passwd *pw, const char *prompt)
-{
- char buf[1024];
- 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'))
- *strchr(buf, '\n') = 0;
- if (strcmp(buf, "") != 0)
- strlcpy(identity_file, buf, sizeof(identity_file));
- have_identity = 1;
-}
-
-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;
- Key *public;
- char *comment = NULL, *cp, *ep, line[16*1024], *fp;
- 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;
- 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_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);
- }
- if (comment)
- xfree(comment);
-
- f = fopen(identity_file, "r");
- if (f != NULL) {
- while (fgets(line, sizeof(line), f)) {
- i = strlen(line) - 1;
- if (line[i] != '\n') {
- error("line %d too long: %.40s...", num, line);
- skip = 1;
- continue;
- }
- num++;
- if (skip) {
- skip = 0;
- continue;
- }
- line[i] = '\0';
-
- /* Skip leading whitespace, empty and comment lines. */
- for (cp = line; *cp == ' ' || *cp == '\t'; cp++)
- ;
- if (!*cp || *cp == '\n' || *cp == '#')
- continue ;
- i = strtol(cp, &ep, 10);
- if (i == 0 || ep == NULL || (*ep != ' ' && *ep != '\t')) {
- int quoted = 0;
- comment = cp;
- for (; *cp && (quoted || (*cp != ' ' &&
- *cp != '\t')); cp++) {
- if (*cp == '\\' && cp[1] == '"')
- cp++; /* Skip both */
- else if (*cp == '"')
- quoted = !quoted;
- }
- if (!*cp)
- continue;
- *cp++ = '\0';
- }
- ep = cp;
- 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;
- }
- fclose(f);
- }
- if (invalid) {
- 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.
- */
-static void
-do_change_passphrase(struct passwd *pw)
-{
- char *comment;
- char *old_passphrase, *passphrase1, *passphrase2;
- struct stat st;
- Key *private;
-
- if (!have_identity)
- ask_filename(pw, "Enter file in which the key is");
- if (stat(identity_file, &st) < 0) {
- perror(identity_file);
- exit(1);
- }
- /* Try to load the file with empty passphrase. */
- 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: ",
- 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);
- }
- }
- printf("Key has comment '%s'\n", comment);
-
- /* Ask the new passphrase (twice). */
- if (identity_new_passphrase) {
- passphrase1 = xstrdup(identity_new_passphrase);
- passphrase2 = NULL;
- } else {
- passphrase1 =
- 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) {
- memset(passphrase1, 0, strlen(passphrase1));
- memset(passphrase2, 0, strlen(passphrase2));
- xfree(passphrase1);
- xfree(passphrase2);
- printf("Pass phrases do not match. Try again.\n");
- exit(1);
- }
- /* Destroy the other copy. */
- memset(passphrase2, 0, strlen(passphrase2));
- xfree(passphrase2);
- }
-
- /* Save the file using the new passphrase. */
- 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);
- 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);
- key_free(private); /* Destroys contents */
- xfree(comment);
-
- printf("Your identification has been saved with the new passphrase.\n");
- exit(0);
-}
-
-/*
- * Change the comment of a private key file.
- */
-static void
-do_change_comment(struct passwd *pw)
-{
- char new_comment[1024], *comment, *passphrase;
- Key *private;
- Key *public;
- struct stat st;
- FILE *f;
- int fd;
-
- if (!have_identity)
- ask_filename(pw, "Enter file in which the key is");
- if (stat(identity_file, &st) < 0) {
- perror(identity_file);
- exit(1);
- }
- 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: ",
- RP_ALLOW_STDIN);
- /* Try to load using the passphrase. */
- 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);
-
- if (identity_comment) {
- strlcpy(new_comment, identity_comment, sizeof(new_comment));
- } else {
- printf("Enter new comment: ");
- fflush(stdout);
- if (!fgets(new_comment, sizeof(new_comment), stdin)) {
- memset(passphrase, 0, strlen(passphrase));
- key_free(private);
- exit(1);
- }
- if (strchr(new_comment, '\n'))
- *strchr(new_comment, '\n') = 0;
- }
-
- /* Save the file using the new passphrase. */
- 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);
- key_free(private);
- xfree(comment);
- exit(1);
- }
- memset(passphrase, 0, strlen(passphrase));
- xfree(passphrase);
- public = key_from_private(private);
- key_free(private);
-
- strlcat(identity_file, ".pub", sizeof(identity_file));
- 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);
- }
- 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);
-
- printf("The comment in your key file has been changed.\n");
- exit(0);
-}
-
-static void
-usage(void)
-{
- 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);
-}
-
-/*
- * Main program for key management.
- */
-int
-main(int ac, char **av)
-{
- char dotsshdir[MAXPATHLEN], comment[1024], *passphrase1, *passphrase2;
- char *reader_id = NULL;
- Key *private, *public;
- struct passwd *pw;
- struct stat st;
- int opt, type, fd, download = 0;
- FILE *f;
-
- extern int optind;
- extern char *optarg;
-
- __progname = get_progname(av[0]);
-
- SSLeay_add_all_algorithms();
-
- /* 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, "deiqpclBRxXyb:f:t:U:D:P:N:C:")) != -1) {
- switch (opt) {
- case 'b':
- bits = atoi(optarg);
- if (bits < 512 || bits > 32768) {
- printf("Bits has bad value.\n");
- 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();
- }
- }
- if (optind < ac) {
- printf("Too many arguments.\n");
- usage();
- }
- if (change_passphrase && change_comment) {
- printf("Can only have one of -p and -c.\n");
- usage();
- }
- if (print_fingerprint || print_bubblebabble)
- do_fingerprint(pw);
- if (change_passphrase)
- do_change_passphrase(pw);
- if (convert_to_ssh2)
- do_convert_to_ssh2(pw);
- if (change_comment)
- do_change_comment(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 */
- }
-
- init_rng();
- seed_rng();
- arc4random_stir();
-
- if (convert_from_ssh2)
- do_convert_from_ssh2(pw);
-
- 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, _PATH_SSH_USER_DIR);
- if (strstr(identity_file, dotsshdir) != NULL &&
- stat(dotsshdir, &st) < 0) {
- if (mkdir(dotsshdir, 0700) < 0)
- error("Could not create directory '%s'.", dotsshdir);
- else if (!quiet)
- printf("Created directory '%s'.\n", dotsshdir);
- }
- /* If the file already exists, ask the user to confirm. */
- if (stat(identity_file, &st) >= 0) {
- char yesno[3];
- printf("%s already exists.\n", identity_file);
- printf("Overwrite (y/n)? ");
- fflush(stdout);
- if (fgets(yesno, sizeof(yesno), stdin) == NULL)
- exit(1);
- if (yesno[0] != 'y' && yesno[0] != 'Y')
- exit(1);
- }
- /* Ask for a passphrase (twice). */
- if (identity_passphrase)
- passphrase1 = xstrdup(identity_passphrase);
- else if (identity_new_passphrase)
- passphrase1 = xstrdup(identity_new_passphrase);
- else {
-passphrase_again:
- passphrase1 =
- 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.
- */
- memset(passphrase1, 0, strlen(passphrase1));
- memset(passphrase2, 0, strlen(passphrase2));
- xfree(passphrase1);
- xfree(passphrase2);
- printf("Passphrases do not match. Try again.\n");
- goto passphrase_again;
- }
- /* Clear the other copy of the passphrase. */
- memset(passphrase2, 0, strlen(passphrase2));
- xfree(passphrase2);
- }
-
- if (identity_comment) {
- strlcpy(comment, identity_comment, sizeof(comment));
- } else {
- /* Create default commend field for the passphrase. */
- snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, hostname);
- }
-
- /* Save the key with the given passphrase and comment. */
- 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);
- }
- /* Clear the passphrase. */
- memset(passphrase1, 0, strlen(passphrase1));
- xfree(passphrase1);
-
- /* Clear the private key and the random number generator. */
- 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));
- 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);
- }
- 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) {
- 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("%s %s\n", fp, comment);
- xfree(fp);
- }
-
- key_free(public);
- exit(0);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-10 01:52:56 +0000