version 1.326, 2019/01/23 04:51:02 |
version 1.355, 2019/10/03 17:07:50 |
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#include <sys/socket.h> |
#include <sys/socket.h> |
#include <sys/stat.h> |
#include <sys/stat.h> |
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#ifdef WITH_OPENSSL |
#include <openssl/evp.h> |
#include <openssl/evp.h> |
#include <openssl/pem.h> |
#include <openssl/pem.h> |
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#endif |
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#include <stdint.h> |
#include <errno.h> |
#include <errno.h> |
#include <fcntl.h> |
#include <fcntl.h> |
#include <netdb.h> |
#include <netdb.h> |
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#include "xmalloc.h" |
#include "xmalloc.h" |
#include "sshkey.h" |
#include "sshkey.h" |
#include "authfile.h" |
#include "authfile.h" |
#include "uuencode.h" |
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#include "sshbuf.h" |
#include "sshbuf.h" |
#include "pathnames.h" |
#include "pathnames.h" |
#include "log.h" |
#include "log.h" |
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#include "digest.h" |
#include "digest.h" |
#include "utf8.h" |
#include "utf8.h" |
#include "authfd.h" |
#include "authfd.h" |
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#include "sshsig.h" |
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#ifdef ENABLE_PKCS11 |
#ifdef ENABLE_PKCS11 |
#include "ssh-pkcs11.h" |
#include "ssh-pkcs11.h" |
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# define DEFAULT_KEY_TYPE_NAME "ed25519" |
# define DEFAULT_KEY_TYPE_NAME "ed25519" |
#endif |
#endif |
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/* Number of bits in the RSA/DSA key. This value can be set on the command line. */ |
/* |
#define DEFAULT_BITS 2048 |
* Default number of bits in the RSA, DSA and ECDSA keys. These value can be |
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* overridden on the command line. |
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* |
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* These values, with the exception of DSA, provide security equivalent to at |
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* least 128 bits of security according to NIST Special Publication 800-57: |
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* Recommendation for Key Management Part 1 rev 4 section 5.6.1. |
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* For DSA it (and FIPS-186-4 section 4.2) specifies that the only size for |
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* which a 160bit hash is acceptable is 1kbit, and since ssh-dss specifies only |
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* SHA1 we limit the DSA key size 1k bits. |
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*/ |
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#define DEFAULT_BITS 3072 |
#define DEFAULT_BITS_DSA 1024 |
#define DEFAULT_BITS_DSA 1024 |
#define DEFAULT_BITS_ECDSA 256 |
#define DEFAULT_BITS_ECDSA 256 |
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static int fingerprint_hash = SSH_FP_HASH_DEFAULT; |
static int fingerprint_hash = SSH_FP_HASH_DEFAULT; |
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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. */ |
static char identity_file[1024]; |
static char identity_file[PATH_MAX]; |
static int have_identity = 0; |
static int have_identity = 0; |
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/* This is set to the passphrase if given on the command line. */ |
/* This is set to the passphrase if given on the command line. */ |
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/* Load key from this PKCS#11 provider */ |
/* Load key from this PKCS#11 provider */ |
static char *pkcs11provider = NULL; |
static char *pkcs11provider = NULL; |
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/* Use new OpenSSH private key format when writing SSH2 keys instead of PEM */ |
/* Format for writing private keys */ |
static int use_new_format = 1; |
static int private_key_format = SSHKEY_PRIVATE_OPENSSH; |
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/* Cipher for new-format private keys */ |
/* Cipher for new-format private keys */ |
static char *new_format_cipher = NULL; |
static char *openssh_format_cipher = NULL; |
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/* |
/* |
* Number of KDF rounds to derive new format keys / |
* Number of KDF rounds to derive new format keys / |
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static void |
static void |
type_bits_valid(int type, const char *name, u_int32_t *bitsp) |
type_bits_valid(int type, const char *name, u_int32_t *bitsp) |
{ |
{ |
#ifdef WITH_OPENSSL |
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u_int maxbits, nid; |
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#endif |
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if (type == KEY_UNSPEC) |
if (type == KEY_UNSPEC) |
fatal("unknown key type %s", key_type_name); |
fatal("unknown key type %s", key_type_name); |
if (*bitsp == 0) { |
if (*bitsp == 0) { |
#ifdef WITH_OPENSSL |
#ifdef WITH_OPENSSL |
if (type == KEY_DSA) |
u_int nid; |
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switch(type) { |
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case KEY_DSA: |
*bitsp = DEFAULT_BITS_DSA; |
*bitsp = DEFAULT_BITS_DSA; |
else if (type == KEY_ECDSA) { |
break; |
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case KEY_ECDSA: |
if (name != NULL && |
if (name != NULL && |
(nid = sshkey_ecdsa_nid_from_name(name)) > 0) |
(nid = sshkey_ecdsa_nid_from_name(name)) > 0) |
*bitsp = sshkey_curve_nid_to_bits(nid); |
*bitsp = sshkey_curve_nid_to_bits(nid); |
if (*bitsp == 0) |
if (*bitsp == 0) |
*bitsp = DEFAULT_BITS_ECDSA; |
*bitsp = DEFAULT_BITS_ECDSA; |
} else |
break; |
#endif |
case KEY_RSA: |
*bitsp = DEFAULT_BITS; |
*bitsp = DEFAULT_BITS; |
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break; |
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} |
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#endif |
} |
} |
#ifdef WITH_OPENSSL |
#ifdef WITH_OPENSSL |
maxbits = (type == KEY_DSA) ? |
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OPENSSL_DSA_MAX_MODULUS_BITS : OPENSSL_RSA_MAX_MODULUS_BITS; |
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if (*bitsp > maxbits) |
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fatal("key bits exceeds maximum %d", maxbits); |
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switch (type) { |
switch (type) { |
case KEY_DSA: |
case KEY_DSA: |
if (*bitsp != 1024) |
if (*bitsp != 1024) |
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if (*bitsp < SSH_RSA_MINIMUM_MODULUS_SIZE) |
if (*bitsp < SSH_RSA_MINIMUM_MODULUS_SIZE) |
fatal("Invalid RSA key length: minimum is %d bits", |
fatal("Invalid RSA key length: minimum is %d bits", |
SSH_RSA_MINIMUM_MODULUS_SIZE); |
SSH_RSA_MINIMUM_MODULUS_SIZE); |
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else if (*bitsp > OPENSSL_RSA_MAX_MODULUS_BITS) |
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fatal("Invalid RSA key length: maximum is %d bits", |
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OPENSSL_RSA_MAX_MODULUS_BITS); |
break; |
break; |
case KEY_ECDSA: |
case KEY_ECDSA: |
if (sshkey_ecdsa_bits_to_nid(*bitsp) == -1) |
if (sshkey_ecdsa_bits_to_nid(*bitsp) == -1) |
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#endif |
#endif |
} |
} |
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/* |
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* Checks whether a file exists and, if so, asks the user whether they wish |
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* to overwrite it. |
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* Returns nonzero if the file does not already exist or if the user agrees to |
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* overwrite, or zero otherwise. |
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*/ |
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static int |
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confirm_overwrite(const char *filename) |
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{ |
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char yesno[3]; |
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struct stat st; |
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if (stat(filename, &st) != 0) |
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return 1; |
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printf("%s already exists.\n", filename); |
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printf("Overwrite (y/n)? "); |
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fflush(stdout); |
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if (fgets(yesno, sizeof(yesno), stdin) == NULL) |
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return 0; |
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if (yesno[0] != 'y' && yesno[0] != 'Y') |
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return 0; |
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return 1; |
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} |
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static void |
static void |
ask_filename(struct passwd *pw, const char *prompt) |
ask_filename(struct passwd *pw, const char *prompt) |
{ |
{ |
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} |
} |
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static struct sshkey * |
static struct sshkey * |
load_identity(char *filename) |
load_identity(const char *filename, char **commentp) |
{ |
{ |
char *pass; |
char *pass; |
struct sshkey *prv; |
struct sshkey *prv; |
int r; |
int r; |
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if ((r = sshkey_load_private(filename, "", &prv, NULL)) == 0) |
if (commentp != NULL) |
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*commentp = NULL; |
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if ((r = sshkey_load_private(filename, "", &prv, commentp)) == 0) |
return prv; |
return prv; |
if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
if (r != SSH_ERR_KEY_WRONG_PASSPHRASE) |
fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
fatal("Load key \"%s\": %s", filename, ssh_err(r)); |
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pass = xstrdup(identity_passphrase); |
pass = xstrdup(identity_passphrase); |
else |
else |
pass = read_passphrase("Enter passphrase: ", RP_ALLOW_STDIN); |
pass = read_passphrase("Enter passphrase: ", RP_ALLOW_STDIN); |
r = sshkey_load_private(filename, pass, &prv, NULL); |
r = sshkey_load_private(filename, pass, &prv, commentp); |
explicit_bzero(pass, strlen(pass)); |
explicit_bzero(pass, strlen(pass)); |
free(pass); |
free(pass); |
if (r != 0) |
if (r != 0) |
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static void |
static void |
do_convert_to_ssh2(struct passwd *pw, struct sshkey *k) |
do_convert_to_ssh2(struct passwd *pw, struct sshkey *k) |
{ |
{ |
size_t len; |
struct sshbuf *b; |
u_char *blob; |
char comment[61], *b64; |
char comment[61]; |
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int r; |
int r; |
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if ((r = sshkey_to_blob(k, &blob, &len)) != 0) |
if ((b = sshbuf_new()) == NULL) |
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fatal("%s: sshbuf_new failed", __func__); |
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if ((r = sshkey_putb(k, b)) != 0) |
fatal("key_to_blob failed: %s", ssh_err(r)); |
fatal("key_to_blob failed: %s", ssh_err(r)); |
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if ((b64 = sshbuf_dtob64_string(b, 1)) == NULL) |
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fatal("%s: sshbuf_dtob64_string failed", __func__); |
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/* Comment + surrounds must fit into 72 chars (RFC 4716 sec 3.3) */ |
/* Comment + surrounds must fit into 72 chars (RFC 4716 sec 3.3) */ |
snprintf(comment, sizeof(comment), |
snprintf(comment, sizeof(comment), |
"%u-bit %s, converted by %s@%s from OpenSSH", |
"%u-bit %s, converted by %s@%s from OpenSSH", |
sshkey_size(k), sshkey_type(k), |
sshkey_size(k), sshkey_type(k), |
pw->pw_name, hostname); |
pw->pw_name, hostname); |
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sshkey_free(k); |
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sshbuf_free(b); |
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fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_BEGIN); |
fprintf(stdout, "Comment: \"%s\"\n", comment); |
fprintf(stdout, "Comment: \"%s\"\n%s", comment, b64); |
dump_base64(stdout, blob, len); |
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fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
fprintf(stdout, "%s\n", SSH_COM_PUBLIC_END); |
sshkey_free(k); |
free(b64); |
free(blob); |
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exit(0); |
exit(0); |
} |
} |
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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) == -1) |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
if ((r = sshkey_load_public(identity_file, &k, NULL)) != 0) |
if ((r = sshkey_load_public(identity_file, &k, NULL)) != 0) |
k = load_identity(identity_file); |
k = load_identity(identity_file, NULL); |
switch (convert_format) { |
switch (convert_format) { |
case FMT_RFC4716: |
case FMT_RFC4716: |
do_convert_to_ssh2(pw, k); |
do_convert_to_ssh2(pw, k); |
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} |
} |
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static struct sshkey * |
static struct sshkey * |
do_convert_private_ssh2_from_blob(u_char *blob, u_int blen) |
do_convert_private_ssh2(struct sshbuf *b) |
{ |
{ |
struct sshbuf *b; |
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struct sshkey *key = NULL; |
struct sshkey *key = NULL; |
char *type, *cipher; |
char *type, *cipher; |
u_char e1, e2, e3, *sig = NULL, data[] = "abcde12345"; |
u_char e1, e2, e3, *sig = NULL, data[] = "abcde12345"; |
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BIGNUM *dsa_pub_key = NULL, *dsa_priv_key = NULL; |
BIGNUM *dsa_pub_key = NULL, *dsa_priv_key = NULL; |
BIGNUM *rsa_n = NULL, *rsa_e = NULL, *rsa_d = NULL; |
BIGNUM *rsa_n = NULL, *rsa_e = NULL, *rsa_d = NULL; |
BIGNUM *rsa_p = NULL, *rsa_q = NULL, *rsa_iqmp = NULL; |
BIGNUM *rsa_p = NULL, *rsa_q = NULL, *rsa_iqmp = NULL; |
if ((b = sshbuf_from(blob, blen)) == NULL) |
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fatal("%s: sshbuf_from failed", __func__); |
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if ((r = sshbuf_get_u32(b, &magic)) != 0) |
if ((r = sshbuf_get_u32(b, &magic)) != 0) |
fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
fatal("%s: buffer error: %s", __func__, ssh_err(r)); |
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if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { |
if (magic != SSH_COM_PRIVATE_KEY_MAGIC) { |
error("bad magic 0x%x != 0x%x", magic, |
error("bad magic 0x%x != 0x%x", magic, |
SSH_COM_PRIVATE_KEY_MAGIC); |
SSH_COM_PRIVATE_KEY_MAGIC); |
sshbuf_free(b); |
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return NULL; |
return NULL; |
} |
} |
if ((r = sshbuf_get_u32(b, &i1)) != 0 || |
if ((r = sshbuf_get_u32(b, &i1)) != 0 || |
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if (strcmp(cipher, "none") != 0) { |
if (strcmp(cipher, "none") != 0) { |
error("unsupported cipher %s", cipher); |
error("unsupported cipher %s", cipher); |
free(cipher); |
free(cipher); |
sshbuf_free(b); |
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free(type); |
free(type); |
return NULL; |
return NULL; |
} |
} |
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} else if (strstr(type, "rsa")) { |
} else if (strstr(type, "rsa")) { |
ktype = KEY_RSA; |
ktype = KEY_RSA; |
} else { |
} else { |
sshbuf_free(b); |
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free(type); |
free(type); |
return NULL; |
return NULL; |
} |
} |
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fatal("%s: BN_new", __func__); |
fatal("%s: BN_new", __func__); |
if (!BN_set_word(rsa_e, e)) { |
if (!BN_set_word(rsa_e, e)) { |
BN_clear_free(rsa_e); |
BN_clear_free(rsa_e); |
sshbuf_free(b); |
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sshkey_free(key); |
sshkey_free(key); |
return NULL; |
return NULL; |
} |
} |
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} |
} |
rlen = sshbuf_len(b); |
rlen = sshbuf_len(b); |
if (rlen != 0) |
if (rlen != 0) |
error("do_convert_private_ssh2_from_blob: " |
error("%s: remaining bytes in key blob %d", __func__, rlen); |
"remaining bytes in key blob %d", rlen); |
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sshbuf_free(b); |
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/* try the key */ |
/* try the key */ |
if (sshkey_sign(key, &sig, &slen, data, sizeof(data), NULL, 0) != 0 || |
if (sshkey_sign(key, &sig, &slen, data, sizeof(data), NULL, 0) != 0 || |
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int r, blen, escaped = 0; |
int r, blen, escaped = 0; |
u_int len; |
u_int len; |
char line[1024]; |
char line[1024]; |
u_char blob[8096]; |
struct sshbuf *buf; |
char encoded[8096]; |
char encoded[8096]; |
FILE *fp; |
FILE *fp; |
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if ((buf = sshbuf_new()) == NULL) |
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fatal("sshbuf_new failed"); |
if ((fp = fopen(identity_file, "r")) == NULL) |
if ((fp = fopen(identity_file, "r")) == NULL) |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
encoded[0] = '\0'; |
encoded[0] = '\0'; |
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(encoded[len-2] == '=') && |
(encoded[len-2] == '=') && |
(encoded[len-3] == '=')) |
(encoded[len-3] == '=')) |
encoded[len-3] = '\0'; |
encoded[len-3] = '\0'; |
blen = uudecode(encoded, blob, sizeof(blob)); |
if ((r = sshbuf_b64tod(buf, encoded)) != 0) |
if (blen < 0) |
fatal("%s: base64 decoding failed: %s", __func__, ssh_err(r)); |
fatal("uudecode failed."); |
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if (*private) |
if (*private) |
*k = do_convert_private_ssh2_from_blob(blob, blen); |
*k = do_convert_private_ssh2(buf); |
else if ((r = sshkey_from_blob(blob, blen, k)) != 0) |
else if ((r = sshkey_fromb(buf, k)) != 0) |
fatal("decode blob failed: %s", ssh_err(r)); |
fatal("decode blob failed: %s", ssh_err(r)); |
fclose(fp); |
fclose(fp); |
} |
} |
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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) == -1) |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
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switch (convert_format) { |
switch (convert_format) { |
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struct sshkey *prv; |
struct sshkey *prv; |
struct stat st; |
struct stat st; |
int r; |
int r; |
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char *comment = NULL; |
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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) == -1) |
fatal("%s: %s", identity_file, strerror(errno)); |
fatal("%s: %s", identity_file, strerror(errno)); |
prv = load_identity(identity_file); |
prv = load_identity(identity_file, &comment); |
if ((r = sshkey_write(prv, stdout)) != 0) |
if ((r = sshkey_write(prv, stdout)) != 0) |
error("sshkey_write failed: %s", ssh_err(r)); |
error("sshkey_write failed: %s", ssh_err(r)); |
sshkey_free(prv); |
sshkey_free(prv); |
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if (comment != NULL && *comment != '\0') |
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fprintf(stdout, " %s", comment); |
fprintf(stdout, "\n"); |
fprintf(stdout, "\n"); |
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free(comment); |
exit(0); |
exit(0); |
} |
} |
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fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
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pkcs11_init(0); |
pkcs11_init(1); |
nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys); |
nkeys = pkcs11_add_provider(pkcs11provider, NULL, &keys); |
if (nkeys <= 0) |
if (nkeys <= 0) |
fatal("cannot read public key from pkcs11"); |
fatal("cannot read public key from pkcs11"); |
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struct sshkey *public = NULL; |
struct sshkey *public = NULL; |
int r; |
int r; |
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if (stat(identity_file, &st) < 0) |
if (stat(identity_file, &st) == -1) |
fatal("%s: %s", path, strerror(errno)); |
fatal("%s: %s", path, strerror(errno)); |
if ((r = sshkey_load_public(path, &public, &comment)) != 0) { |
if ((r = sshkey_load_public(path, &public, &comment)) != 0) { |
debug("load public \"%s\": %s", path, ssh_err(r)); |
debug("load public \"%s\": %s", path, ssh_err(r)); |
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{ NULL, NULL, NULL } |
{ NULL, NULL, NULL } |
}; |
}; |
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u_int bits = 0; |
u_int32_t bits = 0; |
int first = 0; |
int first = 0; |
struct stat st; |
struct stat st; |
struct sshkey *private, *public; |
struct sshkey *private, *public; |
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snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, |
snprintf(comment, sizeof comment, "%s@%s", pw->pw_name, |
hostname); |
hostname); |
if ((r = sshkey_save_private(private, prv_tmp, "", |
if ((r = sshkey_save_private(private, prv_tmp, "", |
comment, use_new_format, new_format_cipher, rounds)) != 0) { |
comment, private_key_format, openssh_format_cipher, |
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rounds)) != 0) { |
error("Saving key \"%s\" failed: %s", |
error("Saving key \"%s\" failed: %s", |
prv_tmp, ssh_err(r)); |
prv_tmp, ssh_err(r)); |
goto failnext; |
goto failnext; |
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struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
struct known_hosts_ctx *ctx = (struct known_hosts_ctx *)_ctx; |
enum sshkey_fp_rep rep; |
enum sshkey_fp_rep rep; |
int fptype; |
int fptype; |
char *fp; |
char *fp = NULL, *ra = NULL; |
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fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
fptype = print_bubblebabble ? SSH_DIGEST_SHA1 : fingerprint_hash; |
rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
rep = print_bubblebabble ? SSH_FP_BUBBLEBABBLE : SSH_FP_DEFAULT; |
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known_hosts_hash(l, ctx); |
known_hosts_hash(l, ctx); |
else if (print_fingerprint) { |
else if (print_fingerprint) { |
fp = sshkey_fingerprint(l->key, fptype, rep); |
fp = sshkey_fingerprint(l->key, fptype, rep); |
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ra = sshkey_fingerprint(l->key, |
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fingerprint_hash, SSH_FP_RANDOMART); |
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if (fp == NULL || ra == NULL) |
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fatal("%s: sshkey_fingerprint failed", |
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__func__); |
mprintf("%s %s %s %s\n", ctx->host, |
mprintf("%s %s %s %s\n", ctx->host, |
sshkey_type(l->key), fp, l->comment); |
sshkey_type(l->key), fp, l->comment); |
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if (log_level_get() >= SYSLOG_LEVEL_VERBOSE) |
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printf("%s\n", ra); |
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free(ra); |
free(fp); |
free(fp); |
} else |
} else |
fprintf(ctx->out, "%s\n", l->line); |
fprintf(ctx->out, "%s\n", l->line); |
|
|
|
|
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) == -1) |
fatal("%s: %s", identity_file, strerror(errno)); |
fatal("%s: %s", identity_file, strerror(errno)); |
/* Try to load the file with empty passphrase. */ |
/* Try to load the file with empty passphrase. */ |
r = sshkey_load_private(identity_file, "", &private, &comment); |
r = sshkey_load_private(identity_file, "", &private, &comment); |
|
|
|
|
/* Save the file using the new passphrase. */ |
/* Save the file using the new passphrase. */ |
if ((r = sshkey_save_private(private, identity_file, passphrase1, |
if ((r = sshkey_save_private(private, identity_file, passphrase1, |
comment, use_new_format, new_format_cipher, rounds)) != 0) { |
comment, private_key_format, openssh_format_cipher, rounds)) != 0) { |
error("Saving key \"%s\" failed: %s.", |
error("Saving key \"%s\" failed: %s.", |
identity_file, ssh_err(r)); |
identity_file, ssh_err(r)); |
explicit_bzero(passphrase1, strlen(passphrase1)); |
explicit_bzero(passphrase1, strlen(passphrase1)); |
|
|
|
|
if (fname == NULL) |
if (fname == NULL) |
fatal("%s: no filename", __func__); |
fatal("%s: no filename", __func__); |
if (stat(fname, &st) < 0) { |
if (stat(fname, &st) == -1) { |
if (errno == ENOENT) |
if (errno == ENOENT) |
return 0; |
return 0; |
fatal("%s: %s", fname, strerror(errno)); |
fatal("%s: %s", fname, strerror(errno)); |
|
|
|
|
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) == -1) |
fatal("%s: %s", identity_file, strerror(errno)); |
fatal("%s: %s", identity_file, strerror(errno)); |
if ((r = sshkey_load_private(identity_file, "", |
if ((r = sshkey_load_private(identity_file, "", |
&private, &comment)) == 0) |
&private, &comment)) == 0) |
|
|
} |
} |
|
|
if (private->type != KEY_ED25519 && private->type != KEY_XMSS && |
if (private->type != KEY_ED25519 && private->type != KEY_XMSS && |
!use_new_format) { |
private_key_format != SSHKEY_PRIVATE_OPENSSH) { |
error("Comments are only supported for keys stored in " |
error("Comments are only supported for keys stored in " |
"the new format (-o)."); |
"the new format (-o)."); |
explicit_bzero(passphrase, strlen(passphrase)); |
explicit_bzero(passphrase, strlen(passphrase)); |
|
|
exit(1); |
exit(1); |
} |
} |
if (comment) |
if (comment) |
printf("Key now has comment '%s'\n", comment); |
printf("Old comment: %s\n", comment); |
else |
else |
printf("Key now has no comment\n"); |
printf("No existing comment\n"); |
|
|
if (identity_comment) { |
if (identity_comment) { |
strlcpy(new_comment, identity_comment, sizeof(new_comment)); |
strlcpy(new_comment, identity_comment, sizeof(new_comment)); |
} else { |
} else { |
printf("Enter new comment: "); |
printf("New comment: "); |
fflush(stdout); |
fflush(stdout); |
if (!fgets(new_comment, sizeof(new_comment), stdin)) { |
if (!fgets(new_comment, sizeof(new_comment), stdin)) { |
explicit_bzero(passphrase, strlen(passphrase)); |
explicit_bzero(passphrase, strlen(passphrase)); |
|
|
} |
} |
new_comment[strcspn(new_comment, "\n")] = '\0'; |
new_comment[strcspn(new_comment, "\n")] = '\0'; |
} |
} |
|
if (comment != NULL && strcmp(comment, new_comment) == 0) { |
|
printf("No change to comment\n"); |
|
free(passphrase); |
|
sshkey_free(private); |
|
free(comment); |
|
exit(0); |
|
} |
|
|
/* Save the file using the new passphrase. */ |
/* Save the file using the new passphrase. */ |
if ((r = sshkey_save_private(private, identity_file, passphrase, |
if ((r = sshkey_save_private(private, identity_file, passphrase, |
new_comment, use_new_format, new_format_cipher, rounds)) != 0) { |
new_comment, private_key_format, openssh_format_cipher, |
|
rounds)) != 0) { |
error("Saving key \"%s\" failed: %s", |
error("Saving key \"%s\" failed: %s", |
identity_file, ssh_err(r)); |
identity_file, ssh_err(r)); |
explicit_bzero(passphrase, strlen(passphrase)); |
explicit_bzero(passphrase, strlen(passphrase)); |
|
|
|
|
free(comment); |
free(comment); |
|
|
printf("The comment in your key file has been changed.\n"); |
if (strlen(new_comment) > 0) |
|
printf("Comment '%s' applied\n", new_comment); |
|
else |
|
printf("Comment removed\n"); |
|
|
exit(0); |
exit(0); |
} |
} |
|
|
|
|
|
|
/* Signer for sshkey_certify_custom that uses the agent */ |
/* Signer for sshkey_certify_custom that uses the agent */ |
static int |
static int |
agent_signer(const struct sshkey *key, u_char **sigp, size_t *lenp, |
agent_signer(struct sshkey *key, u_char **sigp, size_t *lenp, |
const u_char *data, size_t datalen, |
const u_char *data, size_t datalen, |
const char *alg, u_int compat, void *ctx) |
const char *alg, u_int compat, void *ctx) |
{ |
{ |
|
|
ca->flags |= SSHKEY_FLAG_EXT; |
ca->flags |= SSHKEY_FLAG_EXT; |
} else { |
} else { |
/* CA key is assumed to be a private key on the filesystem */ |
/* CA key is assumed to be a private key on the filesystem */ |
ca = load_identity(tmp); |
ca = load_identity(tmp, NULL); |
} |
} |
free(tmp); |
free(tmp); |
|
|
|
|
} |
} |
if (n > SSHKEY_CERT_MAX_PRINCIPALS) |
if (n > SSHKEY_CERT_MAX_PRINCIPALS) |
fatal("Too many certificate principals specified"); |
fatal("Too many certificate principals specified"); |
|
|
tmp = tilde_expand_filename(argv[i], pw->pw_uid); |
tmp = tilde_expand_filename(argv[i], pw->pw_uid); |
if ((r = sshkey_load_public(tmp, &public, &comment)) != 0) |
if ((r = sshkey_load_public(tmp, &public, &comment)) != 0) |
fatal("%s: unable to open \"%s\": %s", |
fatal("%s: unable to open \"%s\": %s", |
|
|
|
|
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 (strcmp(identity_file, "-") != 0 && stat(identity_file, &st) < 0) |
if (strcmp(identity_file, "-") != 0 && stat(identity_file, &st) == -1) |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
fatal("%s: %s: %s", __progname, identity_file, strerror(errno)); |
|
|
path = identity_file; |
path = identity_file; |
|
|
} |
} |
#endif |
#endif |
|
|
|
static struct sshkey * |
|
load_sign_key(const char *keypath, const struct sshkey *pubkey) |
|
{ |
|
size_t i, slen, plen = strlen(keypath); |
|
char *privpath = xstrdup(keypath); |
|
const char *suffixes[] = { "-cert.pub", ".pub", NULL }; |
|
struct sshkey *ret = NULL, *privkey = NULL; |
|
int r; |
|
|
|
/* |
|
* If passed a public key filename, then try to locate the correponding |
|
* private key. This lets us specify certificates on the command-line |
|
* and have ssh-keygen find the appropriate private key. |
|
*/ |
|
for (i = 0; suffixes[i]; i++) { |
|
slen = strlen(suffixes[i]); |
|
if (plen <= slen || |
|
strcmp(privpath + plen - slen, suffixes[i]) != 0) |
|
continue; |
|
privpath[plen - slen] = '\0'; |
|
debug("%s: %s looks like a public key, using private key " |
|
"path %s instead", __func__, keypath, privpath); |
|
} |
|
if ((privkey = load_identity(privpath, NULL)) == NULL) { |
|
error("Couldn't load identity %s", keypath); |
|
goto done; |
|
} |
|
if (!sshkey_equal_public(pubkey, privkey)) { |
|
error("Public key %s doesn't match private %s", |
|
keypath, privpath); |
|
goto done; |
|
} |
|
if (sshkey_is_cert(pubkey) && !sshkey_is_cert(privkey)) { |
|
/* |
|
* Graft the certificate onto the private key to make |
|
* it capable of signing. |
|
*/ |
|
if ((r = sshkey_to_certified(privkey)) != 0) { |
|
error("%s: sshkey_to_certified: %s", __func__, |
|
ssh_err(r)); |
|
goto done; |
|
} |
|
if ((r = sshkey_cert_copy(pubkey, privkey)) != 0) { |
|
error("%s: sshkey_cert_copy: %s", __func__, ssh_err(r)); |
|
goto done; |
|
} |
|
} |
|
/* success */ |
|
ret = privkey; |
|
privkey = NULL; |
|
done: |
|
sshkey_free(privkey); |
|
free(privpath); |
|
return ret; |
|
} |
|
|
|
static int |
|
sign_one(struct sshkey *signkey, const char *filename, int fd, |
|
const char *sig_namespace, sshsig_signer *signer, void *signer_ctx) |
|
{ |
|
struct sshbuf *sigbuf = NULL, *abuf = NULL; |
|
int r = SSH_ERR_INTERNAL_ERROR, wfd = -1, oerrno; |
|
char *wfile = NULL; |
|
char *asig = NULL; |
|
|
|
if (!quiet) { |
|
if (fd == STDIN_FILENO) |
|
fprintf(stderr, "Signing data on standard input\n"); |
|
else |
|
fprintf(stderr, "Signing file %s\n", filename); |
|
} |
|
if ((r = sshsig_sign_fd(signkey, NULL, fd, sig_namespace, |
|
&sigbuf, signer, signer_ctx)) != 0) { |
|
error("Signing %s failed: %s", filename, ssh_err(r)); |
|
goto out; |
|
} |
|
if ((r = sshsig_armor(sigbuf, &abuf)) != 0) { |
|
error("%s: sshsig_armor: %s", __func__, ssh_err(r)); |
|
goto out; |
|
} |
|
if ((asig = sshbuf_dup_string(abuf)) == NULL) { |
|
error("%s: buffer error", __func__); |
|
r = SSH_ERR_ALLOC_FAIL; |
|
goto out; |
|
} |
|
|
|
if (fd == STDIN_FILENO) { |
|
fputs(asig, stdout); |
|
fflush(stdout); |
|
} else { |
|
xasprintf(&wfile, "%s.sig", filename); |
|
if (confirm_overwrite(wfile)) { |
|
if ((wfd = open(wfile, O_WRONLY|O_CREAT|O_TRUNC, |
|
0666)) == -1) { |
|
oerrno = errno; |
|
error("Cannot open %s: %s", |
|
wfile, strerror(errno)); |
|
errno = oerrno; |
|
r = SSH_ERR_SYSTEM_ERROR; |
|
goto out; |
|
} |
|
if (atomicio(vwrite, wfd, asig, |
|
strlen(asig)) != strlen(asig)) { |
|
oerrno = errno; |
|
error("Cannot write to %s: %s", |
|
wfile, strerror(errno)); |
|
errno = oerrno; |
|
r = SSH_ERR_SYSTEM_ERROR; |
|
goto out; |
|
} |
|
if (!quiet) { |
|
fprintf(stderr, "Write signature to %s\n", |
|
wfile); |
|
} |
|
} |
|
} |
|
/* success */ |
|
r = 0; |
|
out: |
|
free(wfile); |
|
free(asig); |
|
sshbuf_free(abuf); |
|
sshbuf_free(sigbuf); |
|
if (wfd != -1) |
|
close(wfd); |
|
return r; |
|
} |
|
|
|
static int |
|
sign(const char *keypath, const char *sig_namespace, int argc, char **argv) |
|
{ |
|
int i, fd = -1, r, ret = -1; |
|
int agent_fd = -1; |
|
struct sshkey *pubkey = NULL, *privkey = NULL, *signkey = NULL; |
|
sshsig_signer *signer = NULL; |
|
|
|
/* Check file arguments. */ |
|
for (i = 0; i < argc; i++) { |
|
if (strcmp(argv[i], "-") != 0) |
|
continue; |
|
if (i > 0 || argc > 1) |
|
fatal("Cannot sign mix of paths and standard input"); |
|
} |
|
|
|
if ((r = sshkey_load_public(keypath, &pubkey, NULL)) != 0) { |
|
error("Couldn't load public key %s: %s", keypath, ssh_err(r)); |
|
goto done; |
|
} |
|
|
|
if ((r = ssh_get_authentication_socket(&agent_fd)) != 0) |
|
debug("Couldn't get agent socket: %s", ssh_err(r)); |
|
else { |
|
if ((r = ssh_agent_has_key(agent_fd, pubkey)) == 0) |
|
signer = agent_signer; |
|
else |
|
debug("Couldn't find key in agent: %s", ssh_err(r)); |
|
} |
|
|
|
if (signer == NULL) { |
|
/* Not using agent - try to load private key */ |
|
if ((privkey = load_sign_key(keypath, pubkey)) == NULL) |
|
goto done; |
|
signkey = privkey; |
|
} else { |
|
/* Will use key in agent */ |
|
signkey = pubkey; |
|
} |
|
|
|
if (argc == 0) { |
|
if ((r = sign_one(signkey, "(stdin)", STDIN_FILENO, |
|
sig_namespace, signer, &agent_fd)) != 0) |
|
goto done; |
|
} else { |
|
for (i = 0; i < argc; i++) { |
|
if (strcmp(argv[i], "-") == 0) |
|
fd = STDIN_FILENO; |
|
else if ((fd = open(argv[i], O_RDONLY)) == -1) { |
|
error("Cannot open %s for signing: %s", |
|
argv[i], strerror(errno)); |
|
goto done; |
|
} |
|
if ((r = sign_one(signkey, argv[i], fd, sig_namespace, |
|
signer, &agent_fd)) != 0) |
|
goto done; |
|
if (fd != STDIN_FILENO) |
|
close(fd); |
|
fd = -1; |
|
} |
|
} |
|
|
|
ret = 0; |
|
done: |
|
if (fd != -1 && fd != STDIN_FILENO) |
|
close(fd); |
|
sshkey_free(pubkey); |
|
sshkey_free(privkey); |
|
return ret; |
|
} |
|
|
|
static int |
|
verify(const char *signature, const char *sig_namespace, const char *principal, |
|
const char *allowed_keys, const char *revoked_keys) |
|
{ |
|
int r, ret = -1, sigfd = -1; |
|
struct sshbuf *sigbuf = NULL, *abuf = NULL; |
|
struct sshkey *sign_key = NULL; |
|
char *fp = NULL; |
|
|
|
if ((abuf = sshbuf_new()) == NULL) |
|
fatal("%s: sshbuf_new() failed", __func__); |
|
|
|
if ((sigfd = open(signature, O_RDONLY)) < 0) { |
|
error("Couldn't open signature file %s", signature); |
|
goto done; |
|
} |
|
|
|
if ((r = sshkey_load_file(sigfd, abuf)) != 0) { |
|
error("Couldn't read signature file: %s", ssh_err(r)); |
|
goto done; |
|
} |
|
if ((r = sshsig_dearmor(abuf, &sigbuf)) != 0) { |
|
error("%s: sshsig_armor: %s", __func__, ssh_err(r)); |
|
return r; |
|
} |
|
if ((r = sshsig_verify_fd(sigbuf, STDIN_FILENO, sig_namespace, |
|
&sign_key)) != 0) |
|
goto done; /* sshsig_verify() prints error */ |
|
|
|
if ((fp = sshkey_fingerprint(sign_key, fingerprint_hash, |
|
SSH_FP_DEFAULT)) == NULL) |
|
fatal("%s: sshkey_fingerprint failed", __func__); |
|
debug("Valid (unverified) signature from key %s", fp); |
|
free(fp); |
|
fp = NULL; |
|
|
|
if (revoked_keys != NULL) { |
|
if ((r = sshkey_check_revoked(sign_key, revoked_keys)) != 0) { |
|
debug3("sshkey_check_revoked failed: %s", ssh_err(r)); |
|
goto done; |
|
} |
|
} |
|
|
|
if (allowed_keys != NULL && |
|
(r = sshsig_check_allowed_keys(allowed_keys, sign_key, |
|
principal, sig_namespace)) != 0) { |
|
debug3("sshsig_check_allowed_keys failed: %s", ssh_err(r)); |
|
goto done; |
|
} |
|
/* success */ |
|
ret = 0; |
|
done: |
|
if (!quiet) { |
|
if (ret == 0) { |
|
if ((fp = sshkey_fingerprint(sign_key, fingerprint_hash, |
|
SSH_FP_DEFAULT)) == NULL) { |
|
fatal("%s: sshkey_fingerprint failed", |
|
__func__); |
|
} |
|
if (principal == NULL) { |
|
printf("Good \"%s\" signature with %s key %s\n", |
|
sig_namespace, sshkey_type(sign_key), fp); |
|
|
|
} else { |
|
printf("Good \"%s\" signature for %s with %s key %s\n", |
|
sig_namespace, principal, |
|
sshkey_type(sign_key), fp); |
|
} |
|
} else { |
|
printf("Could not verify signature.\n"); |
|
} |
|
} |
|
if (sigfd != -1) |
|
close(sigfd); |
|
sshbuf_free(sigbuf); |
|
sshbuf_free(abuf); |
|
sshkey_free(sign_key); |
|
free(fp); |
|
return ret; |
|
} |
|
|
static void |
static void |
usage(void) |
usage(void) |
{ |
{ |
fprintf(stderr, |
fprintf(stderr, |
"usage: ssh-keygen [-q] [-b bits] [-t dsa | ecdsa | ed25519 | rsa] [-m format]\n" |
"usage: ssh-keygen [-q] [-b bits] [-C comment] [-f output_keyfile] [-m format]\n" |
" [-N new_passphrase] [-C comment] [-f output_keyfile]\n" |
" [-N new_passphrase] [-t dsa | ecdsa | ed25519 | rsa]\n" |
" ssh-keygen -p [-P old_passphrase] [-N new_passphrase] [-m format]\n" |
" ssh-keygen -p [-f keyfile] [-m format] [-N new_passphrase]\n" |
" [-f keyfile]\n" |
" [-P old_passphrase]\n" |
" ssh-keygen -i [-m key_format] [-f input_keyfile]\n" |
" ssh-keygen -i [-f input_keyfile] [-m key_format]\n" |
" ssh-keygen -e [-m key_format] [-f input_keyfile]\n" |
" ssh-keygen -e [-f input_keyfile] [-m key_format]\n" |
" ssh-keygen -y [-f input_keyfile]\n" |
" ssh-keygen -y [-f input_keyfile]\n" |
" ssh-keygen -c [-P passphrase] [-C comment] [-f keyfile]\n" |
" ssh-keygen -c [-C comment] [-f keyfile] [-P passphrase]\n" |
" ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile]\n" |
" ssh-keygen -l [-v] [-E fingerprint_hash] [-f input_keyfile]\n" |
" ssh-keygen -B [-f input_keyfile]\n"); |
" ssh-keygen -B [-f input_keyfile]\n"); |
#ifdef ENABLE_PKCS11 |
#ifdef ENABLE_PKCS11 |
|
|
" ssh-keygen -D pkcs11\n"); |
" ssh-keygen -D pkcs11\n"); |
#endif |
#endif |
fprintf(stderr, |
fprintf(stderr, |
" ssh-keygen -F hostname [-f known_hosts_file] [-l]\n" |
" ssh-keygen -F hostname [-lv] [-f known_hosts_file]\n" |
" ssh-keygen -H [-f known_hosts_file]\n" |
" ssh-keygen -H [-f known_hosts_file]\n" |
" ssh-keygen -R hostname [-f known_hosts_file]\n" |
" ssh-keygen -R hostname [-f known_hosts_file]\n" |
" ssh-keygen -r hostname [-f input_keyfile] [-g]\n" |
" ssh-keygen -r hostname [-g] [-f input_keyfile]\n" |
#ifdef WITH_OPENSSL |
#ifdef WITH_OPENSSL |
" ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point]\n" |
" ssh-keygen -G output_file [-v] [-b bits] [-M memory] [-S start_point]\n" |
" ssh-keygen -T output_file -f input_file [-v] [-a rounds] [-J num_lines]\n" |
" ssh-keygen -f input_file -T output_file [-v] [-a rounds] [-J num_lines]\n" |
" [-j start_line] [-K checkpt] [-W generator]\n" |
" [-j start_line] [-K checkpt] [-W generator]\n" |
#endif |
#endif |
" ssh-keygen -s ca_key -I certificate_identity [-h] [-U]\n" |
" ssh-keygen -I certificate_identity -s ca_key [-hU] [-D pkcs11_provider]\n" |
" [-D pkcs11_provider] [-n principals] [-O option]\n" |
" [-n principals] [-O option] [-V validity_interval]\n" |
" [-V validity_interval] [-z serial_number] file ...\n" |
" [-z serial_number] file ...\n" |
" ssh-keygen -L [-f input_keyfile]\n" |
" ssh-keygen -L [-f input_keyfile]\n" |
" ssh-keygen -A\n" |
" ssh-keygen -A [-f prefix_path]\n" |
" ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number]\n" |
" ssh-keygen -k -f krl_file [-u] [-s ca_public] [-z version_number]\n" |
" file ...\n" |
" file ...\n" |
" ssh-keygen -Q -f krl_file file ...\n"); |
" ssh-keygen -Q -f krl_file file ...\n" |
|
" ssh-keygen -Y check-novalidate -n namespace -s signature_file\n" |
|
" ssh-keygen -Y sign -f key_file -n namespace file ...\n" |
|
" ssh-keygen -Y verify -f allowed_signers_file -I signer_identity\n" |
|
" -n namespace -s signature_file [-r revocation_file]\n"); |
exit(1); |
exit(1); |
} |
} |
|
|
|
|
int print_public = 0, print_generic = 0, cert_serial_autoinc = 0; |
int print_public = 0, print_generic = 0, cert_serial_autoinc = 0; |
unsigned long long cert_serial = 0; |
unsigned long long cert_serial = 0; |
char *identity_comment = NULL, *ca_key_path = NULL; |
char *identity_comment = NULL, *ca_key_path = NULL; |
u_int bits = 0; |
u_int32_t bits = 0; |
FILE *f; |
FILE *f; |
const char *errstr; |
const char *errstr; |
int log_level = SYSLOG_LEVEL_INFO; |
int log_level = SYSLOG_LEVEL_INFO; |
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char *sign_op = NULL; |
#ifdef WITH_OPENSSL |
#ifdef WITH_OPENSSL |
/* Moduli generation/screening */ |
/* Moduli generation/screening */ |
char out_file[PATH_MAX], *checkpoint = NULL; |
char out_file[PATH_MAX], *checkpoint = NULL; |
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extern int optind; |
extern int optind; |
extern char *optarg; |
extern char *optarg; |
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ssh_malloc_init(); /* must be called before any mallocs */ |
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/* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
/* Ensure that fds 0, 1 and 2 are open or directed to /dev/null */ |
sanitise_stdfd(); |
sanitise_stdfd(); |
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#ifdef WITH_OPENSSL |
OpenSSL_add_all_algorithms(); |
OpenSSL_add_all_algorithms(); |
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#endif |
log_init(argv[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
log_init(argv[0], SYSLOG_LEVEL_INFO, SYSLOG_FACILITY_USER, 1); |
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setlocale(LC_CTYPE, ""); |
setlocale(LC_CTYPE, ""); |
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pw = getpwuid(getuid()); |
pw = getpwuid(getuid()); |
if (!pw) |
if (!pw) |
fatal("No user exists for uid %lu", (u_long)getuid()); |
fatal("No user exists for uid %lu", (u_long)getuid()); |
if (gethostname(hostname, sizeof(hostname)) < 0) |
if (gethostname(hostname, sizeof(hostname)) == -1) |
fatal("gethostname: %s", strerror(errno)); |
fatal("gethostname: %s", strerror(errno)); |
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/* Remaining characters: Ydw */ |
/* Remaining characters: dw */ |
while ((opt = getopt(argc, argv, "ABHLQUXceghiklopquvxy" |
while ((opt = getopt(argc, argv, "ABHLQUXceghiklopquvxy" |
"C:D:E:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Z:" |
"C:D:E:F:G:I:J:K:M:N:O:P:R:S:T:V:W:Y:Z:" |
"a:b:f:g:j:m:n:r:s:t:z:")) != -1) { |
"a:b:f:g:j:m:n:r:s:t:z:")) != -1) { |
switch (opt) { |
switch (opt) { |
case 'A': |
case 'A': |
gen_all_hostkeys = 1; |
gen_all_hostkeys = 1; |
break; |
break; |
case 'b': |
case 'b': |
bits = (u_int32_t)strtonum(optarg, 10, 32768, &errstr); |
bits = (u_int32_t)strtonum(optarg, 1, UINT32_MAX, |
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&errstr); |
if (errstr) |
if (errstr) |
fatal("Bits has bad value %s (%s)", |
fatal("Bits has bad value %s (%s)", |
optarg, errstr); |
optarg, errstr); |
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} |
} |
if (strcasecmp(optarg, "PKCS8") == 0) { |
if (strcasecmp(optarg, "PKCS8") == 0) { |
convert_format = FMT_PKCS8; |
convert_format = FMT_PKCS8; |
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private_key_format = SSHKEY_PRIVATE_PKCS8; |
break; |
break; |
} |
} |
if (strcasecmp(optarg, "PEM") == 0) { |
if (strcasecmp(optarg, "PEM") == 0) { |
convert_format = FMT_PEM; |
convert_format = FMT_PEM; |
use_new_format = 0; |
private_key_format = SSHKEY_PRIVATE_PEM; |
break; |
break; |
} |
} |
fatal("Unsupported conversion format \"%s\"", optarg); |
fatal("Unsupported conversion format \"%s\"", optarg); |
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add_cert_option(optarg); |
add_cert_option(optarg); |
break; |
break; |
case 'Z': |
case 'Z': |
new_format_cipher = optarg; |
openssh_format_cipher = optarg; |
break; |
break; |
case 'C': |
case 'C': |
identity_comment = optarg; |
identity_comment = optarg; |
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case 'V': |
case 'V': |
parse_cert_times(optarg); |
parse_cert_times(optarg); |
break; |
break; |
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case 'Y': |
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sign_op = optarg; |
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break; |
case 'z': |
case 'z': |
errno = 0; |
errno = 0; |
if (*optarg == '+') { |
if (*optarg == '+') { |
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argv += optind; |
argv += optind; |
argc -= optind; |
argc -= optind; |
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if (sign_op != NULL) { |
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if (cert_principals == NULL || *cert_principals == '\0') { |
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error("Too few arguments for sign/verify: " |
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"missing namespace"); |
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exit(1); |
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} |
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if (strncmp(sign_op, "sign", 4) == 0) { |
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if (!have_identity) { |
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error("Too few arguments for sign: " |
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"missing key"); |
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exit(1); |
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} |
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return sign(identity_file, cert_principals, argc, argv); |
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} else if (strncmp(sign_op, "check-novalidate", 16) == 0) { |
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if (ca_key_path == NULL) { |
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error("Too few arguments for check-novalidate: " |
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"missing signature file"); |
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exit(1); |
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} |
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return verify(ca_key_path, cert_principals, |
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NULL, NULL, NULL); |
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} else if (strncmp(sign_op, "verify", 6) == 0) { |
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if (ca_key_path == NULL) { |
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error("Too few arguments for verify: " |
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"missing signature file"); |
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exit(1); |
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} |
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if (!have_identity) { |
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error("Too few arguments for sign: " |
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"missing allowed keys file"); |
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exit(1); |
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} |
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if (cert_key_id == NULL) { |
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error("Too few arguments for verify: " |
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"missing principal ID"); |
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exit(1); |
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} |
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return verify(ca_key_path, cert_principals, |
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cert_key_id, identity_file, rr_hostname); |
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} |
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usage(); |
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/* NOTREACHED */ |
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} |
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if (ca_key_path != NULL) { |
if (ca_key_path != NULL) { |
if (argc < 1 && !gen_krl) { |
if (argc < 1 && !gen_krl) { |
error("Too few arguments."); |
error("Too few arguments."); |
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do_convert_to(pw); |
do_convert_to(pw); |
if (convert_from) |
if (convert_from) |
do_convert_from(pw); |
do_convert_from(pw); |
#endif |
#else /* WITH_OPENSSL */ |
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if (convert_to || convert_from) |
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fatal("key conversion disabled at compile time"); |
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#endif /* WITH_OPENSSL */ |
if (print_public) |
if (print_public) |
do_print_public(pw); |
do_print_public(pw); |
if (rr_hostname != NULL) { |
if (rr_hostname != NULL) { |
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snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", |
snprintf(dotsshdir, sizeof dotsshdir, "%s/%s", |
pw->pw_dir, _PATH_SSH_USER_DIR); |
pw->pw_dir, _PATH_SSH_USER_DIR); |
if (strstr(identity_file, dotsshdir) != NULL) { |
if (strstr(identity_file, dotsshdir) != NULL) { |
if (stat(dotsshdir, &st) < 0) { |
if (stat(dotsshdir, &st) == -1) { |
if (errno != ENOENT) { |
if (errno != ENOENT) { |
error("Could not stat %s: %s", dotsshdir, |
error("Could not stat %s: %s", dotsshdir, |
strerror(errno)); |
strerror(errno)); |
} else if (mkdir(dotsshdir, 0700) < 0) { |
} else if (mkdir(dotsshdir, 0700) == -1) { |
error("Could not create directory '%s': %s", |
error("Could not create directory '%s': %s", |
dotsshdir, strerror(errno)); |
dotsshdir, strerror(errno)); |
} else if (!quiet) |
} else if (!quiet) |
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} |
} |
} |
} |
/* If the file already exists, ask the user to confirm. */ |
/* If the file already exists, ask the user to confirm. */ |
if (stat(identity_file, &st) >= 0) { |
if (!confirm_overwrite(identity_file)) |
char yesno[3]; |
exit(1); |
printf("%s already exists.\n", identity_file); |
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printf("Overwrite (y/n)? "); |
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fflush(stdout); |
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if (fgets(yesno, sizeof(yesno), stdin) == NULL) |
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exit(1); |
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if (yesno[0] != 'y' && yesno[0] != 'Y') |
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exit(1); |
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} |
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/* Ask for a passphrase (twice). */ |
/* Ask for a passphrase (twice). */ |
if (identity_passphrase) |
if (identity_passphrase) |
passphrase1 = xstrdup(identity_passphrase); |
passphrase1 = xstrdup(identity_passphrase); |
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/* Save the key with the given passphrase and comment. */ |
/* Save the key with the given passphrase and comment. */ |
if ((r = sshkey_save_private(private, identity_file, passphrase1, |
if ((r = sshkey_save_private(private, identity_file, passphrase1, |
comment, use_new_format, new_format_cipher, rounds)) != 0) { |
comment, private_key_format, openssh_format_cipher, rounds)) != 0) { |
error("Saving key \"%s\" failed: %s", |
error("Saving key \"%s\" failed: %s", |
identity_file, ssh_err(r)); |
identity_file, ssh_err(r)); |
explicit_bzero(passphrase1, strlen(passphrase1)); |
explicit_bzero(passphrase1, strlen(passphrase1)); |