version 1.37, 2000/12/22 16:49:40 |
version 1.52, 2001/03/26 08:07:09 |
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#include <openssl/evp.h> |
#include <openssl/evp.h> |
#include <openssl/pem.h> |
#include <openssl/pem.h> |
#include <openssl/rsa.h> |
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#include <openssl/dsa.h> |
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#include "ssh.h" |
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#include "xmalloc.h" |
#include "xmalloc.h" |
#include "key.h" |
#include "key.h" |
#include "rsa.h" |
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#include "authfile.h" |
#include "authfile.h" |
#include "uuencode.h" |
#include "uuencode.h" |
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#include "buffer.h" |
#include "buffer.h" |
#include "bufaux.h" |
#include "bufaux.h" |
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#include "pathnames.h" |
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#include "log.h" |
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#include "readpass.h" |
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/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
/* Number of bits in the RSA/DSA key. This value can be changed on the command line. */ |
int bits = 1024; |
int bits = 1024; |
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/* Flag indicating that we just want to see the key fingerprint */ |
/* Flag indicating that we just want to see the key fingerprint */ |
int print_fingerprint = 0; |
int print_fingerprint = 0; |
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int print_bubblebabble = 0; |
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/* The identity file name, given on the command line or entered by the user. */ |
/* The identity file name, given on the command line or entered by the user. */ |
char identity_file[1024]; |
char identity_file[1024]; |
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switch (key_type_from_name(key_type_name)) { |
switch (key_type_from_name(key_type_name)) { |
case KEY_RSA1: |
case KEY_RSA1: |
name = SSH_CLIENT_IDENTITY; |
name = _PATH_SSH_CLIENT_IDENTITY; |
break; |
break; |
case KEY_DSA: |
case KEY_DSA: |
name = SSH_CLIENT_ID_DSA; |
name = _PATH_SSH_CLIENT_ID_DSA; |
break; |
break; |
case KEY_RSA: |
case KEY_RSA: |
name = SSH_CLIENT_ID_RSA; |
name = _PATH_SSH_CLIENT_ID_RSA; |
break; |
break; |
default: |
default: |
fprintf(stderr, "bad key type"); |
fprintf(stderr, "bad key type"); |
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have_identity = 1; |
have_identity = 1; |
} |
} |
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int |
Key * |
try_load_key(char *filename, Key *k) |
try_load_pem_key(char *filename) |
{ |
{ |
int success = 1; |
char *pass; |
if (!load_private_key(filename, "", k, NULL)) { |
Key *prv; |
char *pass = read_passphrase("Enter passphrase: ", 1); |
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if (!load_private_key(filename, pass, k, NULL)) { |
prv = key_load_private(filename, "", NULL); |
success = 0; |
if (prv == NULL) { |
} |
pass = read_passphrase("Enter passphrase: ", 1); |
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prv = key_load_private(filename, pass, NULL); |
memset(pass, 0, strlen(pass)); |
memset(pass, 0, strlen(pass)); |
xfree(pass); |
xfree(pass); |
} |
} |
return success; |
return prv; |
} |
} |
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#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
#define SSH_COM_PUBLIC_BEGIN "---- BEGIN SSH2 PUBLIC KEY ----" |
#define SSH_COM_PUBLIC_END "---- END 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_BEGIN "---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ----" |
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
#define SSH_COM_PRIVATE_KEY_MAGIC 0x3f6ff9eb |
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void |
void |
do_convert_to_ssh2(struct passwd *pw) |
do_convert_to_ssh2(struct passwd *pw) |
{ |
{ |
Key *k; |
Key *prv; |
int len; |
int len; |
u_char *blob; |
u_char *blob; |
struct stat st; |
struct stat st; |
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perror(identity_file); |
perror(identity_file); |
exit(1); |
exit(1); |
} |
} |
k = key_new(KEY_UNSPEC); |
prv = try_load_pem_key(identity_file); |
if (!try_load_key(identity_file, k)) { |
if (prv == NULL) { |
fprintf(stderr, "load failed\n"); |
fprintf(stderr, "load failed\n"); |
exit(1); |
exit(1); |
} |
} |
key_to_blob(k, &blob, &len); |
key_to_blob(prv, &blob, &len); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, |
fprintf(stdout, |
"Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", |
"Comment: \"%d-bit %s, converted from OpenSSH by %s@%s\"\n", |
key_size(k), key_type(k), |
key_size(prv), key_type(prv), |
pw->pw_name, hostname); |
pw->pw_name, hostname); |
dump_base64(stdout, blob, len); |
dump_base64(stdout, blob, len); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
key_free(k); |
key_free(prv); |
xfree(blob); |
xfree(blob); |
exit(0); |
exit(0); |
} |
} |
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void |
void |
do_print_public(struct passwd *pw) |
do_print_public(struct passwd *pw) |
{ |
{ |
Key *k; |
Key *prv; |
struct stat st; |
struct stat st; |
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if (!have_identity) |
if (!have_identity) |
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perror(identity_file); |
perror(identity_file); |
exit(1); |
exit(1); |
} |
} |
k = key_new(KEY_UNSPEC); |
prv = try_load_pem_key(identity_file); |
if (!try_load_key(identity_file, k)) { |
if (prv == NULL) { |
fprintf(stderr, "load failed\n"); |
fprintf(stderr, "load failed\n"); |
exit(1); |
exit(1); |
} |
} |
if (!key_write(k, stdout)) |
if (!key_write(prv, stdout)) |
fprintf(stderr, "key_write failed"); |
fprintf(stderr, "key_write failed"); |
key_free(k); |
key_free(prv); |
fprintf(stdout, "\n"); |
fprintf(stdout, "\n"); |
exit(0); |
exit(0); |
} |
} |
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void |
void |
do_fingerprint(struct passwd *pw) |
do_fingerprint(struct passwd *pw) |
{ |
{ |
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FILE *f; |
FILE *f; |
Key *public; |
Key *public; |
char *comment = NULL, *cp, *ep, line[16*1024]; |
char *comment = NULL, *cp, *ep, line[16*1024], *fp; |
int i, skip = 0, num = 1, invalid = 1, success = 0; |
int i, skip = 0, num = 1, invalid = 1, rep, fptype; |
u_int ignore; |
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struct stat st; |
struct stat st; |
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fptype = print_bubblebabble ? SSH_FP_SHA1 : SSH_FP_MD5; |
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rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_HEX; |
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if (!have_identity) |
if (!have_identity) |
ask_filename(pw, "Enter file in which the key is"); |
ask_filename(pw, "Enter file in which the key is"); |
if (stat(identity_file, &st) < 0) { |
if (stat(identity_file, &st) < 0) { |
perror(identity_file); |
perror(identity_file); |
exit(1); |
exit(1); |
} |
} |
public = key_new(KEY_RSA1); |
public = key_load_public(identity_file, &comment); |
if (load_public_key(identity_file, public, &comment)) { |
if (public != NULL) { |
success = 1; |
fp = key_fingerprint(public, fptype, rep); |
} else { |
printf("%d %s %s\n", key_size(public), fp, comment); |
key_free(public); |
key_free(public); |
public = key_new(KEY_UNSPEC); |
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if (try_load_public_key(identity_file, public, &comment)) |
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success = 1; |
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else |
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error("try_load_public_key KEY_UNSPEC failed"); |
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} |
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if (success) { |
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printf("%d %s %s\n", key_size(public), key_fingerprint(public), comment); |
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key_free(public); |
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xfree(comment); |
xfree(comment); |
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xfree(fp); |
exit(0); |
exit(0); |
} |
} |
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if (comment) |
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xfree(comment); |
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/* XXX RSA1 only */ |
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public = key_new(KEY_RSA1); |
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f = fopen(identity_file, "r"); |
f = fopen(identity_file, "r"); |
if (f != NULL) { |
if (f != NULL) { |
while (fgets(line, sizeof(line), f)) { |
while (fgets(line, sizeof(line), f)) { |
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*cp++ = '\0'; |
*cp++ = '\0'; |
} |
} |
ep = cp; |
ep = cp; |
if (auth_rsa_read_key(&cp, &ignore, public->rsa->e, public->rsa->n)) { |
public = key_new(KEY_RSA1); |
invalid = 0; |
if (key_read(public, &cp) != 1) { |
comment = *cp ? cp : comment; |
cp = ep; |
printf("%d %s %s\n", key_size(public), |
key_free(public); |
key_fingerprint(public), |
public = key_new(KEY_UNSPEC); |
comment ? comment : "no comment"); |
if (key_read(public, &cp) != 1) { |
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key_free(public); |
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continue; |
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} |
} |
} |
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comment = *cp ? cp : comment; |
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fp = key_fingerprint(public, fptype, rep); |
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printf("%d %s %s\n", key_size(public), fp, |
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comment ? comment : "no comment"); |
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xfree(fp); |
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key_free(public); |
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invalid = 0; |
} |
} |
fclose(f); |
fclose(f); |
} |
} |
key_free(public); |
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if (invalid) { |
if (invalid) { |
printf("%s is not a valid key file.\n", identity_file); |
printf("%s is not a valid key file.\n", identity_file); |
exit(1); |
exit(1); |
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char *old_passphrase, *passphrase1, *passphrase2; |
char *old_passphrase, *passphrase1, *passphrase2; |
struct stat st; |
struct stat st; |
Key *private; |
Key *private; |
Key *public; |
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int type = KEY_RSA1; |
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if (!have_identity) |
if (!have_identity) |
ask_filename(pw, "Enter file in which the key is"); |
ask_filename(pw, "Enter file in which the key is"); |
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perror(identity_file); |
perror(identity_file); |
exit(1); |
exit(1); |
} |
} |
public = key_new(type); |
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if (!load_public_key(identity_file, public, NULL)) { |
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type = KEY_UNSPEC; |
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} else { |
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/* Clear the public key since we are just about to load the whole file. */ |
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key_free(public); |
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} |
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/* Try to load the file with empty passphrase. */ |
/* Try to load the file with empty passphrase. */ |
private = key_new(type); |
private = key_load_private(identity_file, "", &comment); |
if (!load_private_key(identity_file, "", private, &comment)) { |
if (private == NULL) { |
if (identity_passphrase) |
if (identity_passphrase) |
old_passphrase = xstrdup(identity_passphrase); |
old_passphrase = xstrdup(identity_passphrase); |
else |
else |
old_passphrase = read_passphrase("Enter old passphrase: ", 1); |
old_passphrase = read_passphrase("Enter old passphrase: ", 1); |
if (!load_private_key(identity_file, old_passphrase, private, &comment)) { |
private = key_load_private(identity_file, old_passphrase , &comment); |
memset(old_passphrase, 0, strlen(old_passphrase)); |
memset(old_passphrase, 0, strlen(old_passphrase)); |
xfree(old_passphrase); |
xfree(old_passphrase); |
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if (private == NULL) { |
printf("Bad passphrase.\n"); |
printf("Bad passphrase.\n"); |
exit(1); |
exit(1); |
} |
} |
memset(old_passphrase, 0, strlen(old_passphrase)); |
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xfree(old_passphrase); |
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} |
} |
printf("Key has comment '%s'\n", comment); |
printf("Key has comment '%s'\n", comment); |
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} |
} |
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/* Save the file using the new passphrase. */ |
/* Save the file using the new passphrase. */ |
if (!save_private_key(identity_file, passphrase1, private, comment)) { |
if (!key_save_private(private, identity_file, passphrase1, comment)) { |
printf("Saving the key failed: %s: %s.\n", |
printf("Saving the key failed: %s: %s.\n", |
identity_file, strerror(errno)); |
identity_file, strerror(errno)); |
memset(passphrase1, 0, strlen(passphrase1)); |
memset(passphrase1, 0, strlen(passphrase1)); |
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void |
void |
do_change_comment(struct passwd *pw) |
do_change_comment(struct passwd *pw) |
{ |
{ |
char new_comment[1024], *comment; |
char new_comment[1024], *comment, *passphrase; |
Key *private; |
Key *private; |
Key *public; |
Key *public; |
char *passphrase; |
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struct stat st; |
struct stat st; |
FILE *f; |
FILE *f; |
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int fd; |
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if (!have_identity) |
if (!have_identity) |
ask_filename(pw, "Enter file in which the key is"); |
ask_filename(pw, "Enter file in which the key is"); |
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perror(identity_file); |
perror(identity_file); |
exit(1); |
exit(1); |
} |
} |
/* |
private = key_load_private(identity_file, "", &comment); |
* Try to load the public key from the file the verify that it is |
if (private == NULL) { |
* readable and of the proper format. |
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*/ |
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public = key_new(KEY_RSA1); |
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if (!load_public_key(identity_file, public, NULL)) { |
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printf("%s is not a valid key file.\n", identity_file); |
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exit(1); |
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} |
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private = key_new(KEY_RSA1); |
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if (load_private_key(identity_file, "", private, &comment)) |
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passphrase = xstrdup(""); |
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else { |
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if (identity_passphrase) |
if (identity_passphrase) |
passphrase = xstrdup(identity_passphrase); |
passphrase = xstrdup(identity_passphrase); |
else if (identity_new_passphrase) |
else if (identity_new_passphrase) |
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else |
else |
passphrase = read_passphrase("Enter passphrase: ", 1); |
passphrase = read_passphrase("Enter passphrase: ", 1); |
/* Try to load using the passphrase. */ |
/* Try to load using the passphrase. */ |
if (!load_private_key(identity_file, passphrase, private, &comment)) { |
private = key_load_private(identity_file, passphrase, &comment); |
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if (private == NULL) { |
memset(passphrase, 0, strlen(passphrase)); |
memset(passphrase, 0, strlen(passphrase)); |
xfree(passphrase); |
xfree(passphrase); |
printf("Bad passphrase.\n"); |
printf("Bad passphrase.\n"); |
exit(1); |
exit(1); |
} |
} |
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} else { |
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passphrase = xstrdup(""); |
} |
} |
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if (private->type != KEY_RSA1) { |
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fprintf(stderr, "Comments are only supported for RSA1 keys.\n"); |
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key_free(private); |
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exit(1); |
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} |
printf("Key now has comment '%s'\n", comment); |
printf("Key now has comment '%s'\n", comment); |
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if (identity_comment) { |
if (identity_comment) { |
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} |
} |
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/* Save the file using the new passphrase. */ |
/* Save the file using the new passphrase. */ |
if (!save_private_key(identity_file, passphrase, private, new_comment)) { |
if (!key_save_private(private, identity_file, passphrase, new_comment)) { |
printf("Saving the key failed: %s: %s.\n", |
printf("Saving the key failed: %s: %s.\n", |
identity_file, strerror(errno)); |
identity_file, strerror(errno)); |
memset(passphrase, 0, strlen(passphrase)); |
memset(passphrase, 0, strlen(passphrase)); |
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} |
} |
memset(passphrase, 0, strlen(passphrase)); |
memset(passphrase, 0, strlen(passphrase)); |
xfree(passphrase); |
xfree(passphrase); |
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public = key_from_private(private); |
key_free(private); |
key_free(private); |
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strlcat(identity_file, ".pub", sizeof(identity_file)); |
strlcat(identity_file, ".pub", sizeof(identity_file)); |
f = fopen(identity_file, "w"); |
fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
if (!f) { |
if (fd == -1) { |
printf("Could not save your public key in %s\n", identity_file); |
printf("Could not save your public key in %s\n", identity_file); |
exit(1); |
exit(1); |
} |
} |
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f = fdopen(fd, "w"); |
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if (f == NULL) { |
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printf("fdopen %s failed", identity_file); |
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exit(1); |
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} |
if (!key_write(public, f)) |
if (!key_write(public, f)) |
fprintf(stderr, "write key failed"); |
fprintf(stderr, "write key failed"); |
key_free(public); |
key_free(public); |
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void |
void |
usage(void) |
usage(void) |
{ |
{ |
printf("Usage: %s [-lpqxXyc] [-t type] [-b bits] [-f file] [-C comment] [-N new-pass] [-P pass]\n", __progname); |
printf("Usage: %s [-lBpqxXyc] [-t type] [-b bits] [-f file] [-C comment] " |
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"[-N new-pass] [-P pass]\n", __progname); |
exit(1); |
exit(1); |
} |
} |
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main(int ac, char **av) |
main(int ac, char **av) |
{ |
{ |
char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2; |
char dotsshdir[16 * 1024], comment[1024], *passphrase1, *passphrase2; |
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Key *private, *public; |
struct passwd *pw; |
struct passwd *pw; |
int opt, type; |
int opt, type, fd; |
struct stat st; |
struct stat st; |
FILE *f; |
FILE *f; |
Key *private; |
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Key *public; |
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extern int optind; |
extern int optind; |
extern char *optarg; |
extern char *optarg; |
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exit(1); |
exit(1); |
} |
} |
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while ((opt = getopt(ac, av, "dqpclRxXyb:f:t:P:N:C:")) != EOF) { |
while ((opt = getopt(ac, av, "dqpclBRxXyb:f:t:P:N:C:")) != -1) { |
switch (opt) { |
switch (opt) { |
case 'b': |
case 'b': |
bits = atoi(optarg); |
bits = atoi(optarg); |
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print_fingerprint = 1; |
print_fingerprint = 1; |
break; |
break; |
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case 'B': |
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print_bubblebabble = 1; |
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break; |
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case 'p': |
case 'p': |
change_passphrase = 1; |
change_passphrase = 1; |
break; |
break; |
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printf("Can only have one of -p and -c.\n"); |
printf("Can only have one of -p and -c.\n"); |
usage(); |
usage(); |
} |
} |
if (print_fingerprint) |
if (print_fingerprint || print_bubblebabble) |
do_fingerprint(pw); |
do_fingerprint(pw); |
if (change_passphrase) |
if (change_passphrase) |
do_change_passphrase(pw); |
do_change_passphrase(pw); |
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ask_filename(pw, "Enter file in which to save the key"); |
ask_filename(pw, "Enter file in which to save the key"); |
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/* Create ~/.ssh directory if it doesn\'t already exist. */ |
/* 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 && |
if (strstr(identity_file, dotsshdir) != NULL && |
stat(dotsshdir, &st) < 0) { |
stat(dotsshdir, &st) < 0) { |
if (mkdir(dotsshdir, 0700) < 0) |
if (mkdir(dotsshdir, 0700) < 0) |
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} |
} |
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/* Save the key with the given passphrase and comment. */ |
/* Save the key with the given passphrase and comment. */ |
if (!save_private_key(identity_file, passphrase1, private, comment)) { |
if (!key_save_private(private, identity_file, passphrase1, comment)) { |
printf("Saving the key failed: %s: %s.\n", |
printf("Saving the key failed: %s: %s.\n", |
identity_file, strerror(errno)); |
identity_file, strerror(errno)); |
memset(passphrase1, 0, strlen(passphrase1)); |
memset(passphrase1, 0, strlen(passphrase1)); |
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printf("Your identification has been saved in %s.\n", identity_file); |
printf("Your identification has been saved in %s.\n", identity_file); |
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strlcat(identity_file, ".pub", sizeof(identity_file)); |
strlcat(identity_file, ".pub", sizeof(identity_file)); |
f = fopen(identity_file, "w"); |
fd = open(identity_file, O_WRONLY | O_CREAT | O_TRUNC, 0644); |
if (!f) { |
if (fd == -1) { |
printf("Could not save your public key in %s\n", identity_file); |
printf("Could not save your public key in %s\n", identity_file); |
exit(1); |
exit(1); |
} |
} |
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f = fdopen(fd, "w"); |
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if (f == NULL) { |
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printf("fdopen %s failed", identity_file); |
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exit(1); |
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} |
if (!key_write(public, f)) |
if (!key_write(public, f)) |
fprintf(stderr, "write key failed"); |
fprintf(stderr, "write key failed"); |
fprintf(f, " %s\n", comment); |
fprintf(f, " %s\n", comment); |
fclose(f); |
fclose(f); |
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if (!quiet) { |
if (!quiet) { |
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char *fp = key_fingerprint(public, SSH_FP_MD5, SSH_FP_HEX); |
printf("Your public key has been saved in %s.\n", |
printf("Your public key has been saved in %s.\n", |
identity_file); |
identity_file); |
printf("The key fingerprint is:\n"); |
printf("The key fingerprint is:\n"); |
printf("%s %s\n", key_fingerprint(public), comment); |
printf("%s %s\n", fp, comment); |
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xfree(fp); |
} |
} |
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key_free(public); |
key_free(public); |