ports/libssh
ports/libssh
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libssh/src/pki.c
Andreas Schneider ebcff9fd63 src: Use explicit_bzero() if available on the platform 
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>
2018-02-12 14:41:27 +01:00

1863 строки
48 KiB
C
Исходник Ответственный История

/*
* pki.c
* This file is part of the SSH Library
*
* Copyright (c) 2010 by Aris Adamantiadis
* Copyright (c) 2011-2013 Andreas Schneider <asn@cryptomilk.org>
*
* The SSH Library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The SSH Library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the SSH Library; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
/**
* @defgroup libssh_pki The SSH Public Key Infrastructure
* @ingroup libssh
*
* Functions for the creation, importation and manipulation of public and
* private keys in the context of the SSH protocol
*
* @{
*/
#include "config.h"
#include <errno.h>
#include <ctype.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _WIN32
# ifdef HAVE_IO_H
# include <io.h>
# undef open
# define open _open
# undef close
# define close _close
# undef read
# define read _read
# undef unlink
# define unlink _unlink
# endif /* HAVE_IO_H */
#endif
#include "libssh/libssh.h"
#include "libssh/session.h"
#include "libssh/priv.h"
#include "libssh/pki.h"
#include "libssh/pki_priv.h"
#include "libssh/keys.h"
#include "libssh/buffer.h"
#include "libssh/misc.h"
#include "libssh/agent.h"
enum ssh_keytypes_e pki_privatekey_type_from_string(const char *privkey) {
if (strncmp(privkey, DSA_HEADER_BEGIN, strlen(DSA_HEADER_BEGIN)) == 0) {
return SSH_KEYTYPE_DSS;
}
if (strncmp(privkey, RSA_HEADER_BEGIN, strlen(RSA_HEADER_BEGIN)) == 0) {
return SSH_KEYTYPE_RSA;
}
if (strncmp(privkey, ECDSA_HEADER_BEGIN, strlen(ECDSA_HEADER_BEGIN)) == 0) {
return SSH_KEYTYPE_ECDSA;
}
return SSH_KEYTYPE_UNKNOWN;
}
/**
* @brief returns the ECDSA key name ("ecdsa-sha2-nistp256" for example)
*
* @param[in] key the ssh_key whose ECDSA name to get
*
* @returns the ECDSA key name ("ecdsa-sha2-nistp256" for example)
*
* @returns "unknown" if the ECDSA key name is not known
*/
const char *ssh_pki_key_ecdsa_name(const ssh_key key)
{
#ifdef HAVE_ECC /* FIXME Better ECC check needed */
return pki_key_ecdsa_nid_to_name(key->ecdsa_nid);
#else
(void) key; /* unused */
return NULL;
#endif
}
/**
* @brief creates a new empty SSH key
* @returns an empty ssh_key handle, or NULL on error.
*/
ssh_key ssh_key_new (void) {
ssh_key ptr = malloc (sizeof (struct ssh_key_struct));
if (ptr == NULL) {
return NULL;
}
ZERO_STRUCTP(ptr);
return ptr;
}
ssh_key ssh_key_dup(const ssh_key key)
{
if (key == NULL) {
return NULL;
}
return pki_key_dup(key, 0);
}
/**
* @brief clean up the key and deallocate all existing keys
* @param[in] key ssh_key to clean
*/
void ssh_key_clean (ssh_key key){
if(key == NULL)
return;
#ifdef HAVE_LIBGCRYPT
if(key->dsa) gcry_sexp_release(key->dsa);
if(key->rsa) gcry_sexp_release(key->rsa);
if(key->ecdsa) gcry_sexp_release(key->ecdsa);
#elif defined HAVE_LIBCRYPTO
if(key->dsa) DSA_free(key->dsa);
if(key->rsa) RSA_free(key->rsa);
#ifdef HAVE_OPENSSL_ECC
if(key->ecdsa) EC_KEY_free(key->ecdsa);
#endif /* HAVE_OPENSSL_ECC */
#elif defined HAVE_LIBMBEDCRYPTO
if (key->rsa != NULL) {
mbedtls_pk_free(key->rsa);
SAFE_FREE(key->rsa);
}
if (key->ecdsa != NULL) {
mbedtls_ecdsa_free(key->ecdsa);
SAFE_FREE(key->ecdsa);
}
#endif
if (key->ed25519_privkey != NULL){
explicit_bzero(key->ed25519_privkey, sizeof(ed25519_privkey));
SAFE_FREE(key->ed25519_privkey);
}
SAFE_FREE(key->ed25519_pubkey);
if (key->cert != NULL) {
ssh_buffer_free(key->cert);
}
key->cert_type = SSH_KEYTYPE_UNKNOWN;
key->flags=SSH_KEY_FLAG_EMPTY;
key->type=SSH_KEYTYPE_UNKNOWN;
key->ecdsa_nid = 0;
key->type_c=NULL;
key->dsa = NULL;
key->rsa = NULL;
key->ecdsa = NULL;
}
/**
* @brief deallocate a SSH key
* @param[in] key ssh_key handle to free
*/
void ssh_key_free (ssh_key key){
if(key){
ssh_key_clean(key);
SAFE_FREE(key);
}
}
/**
* @brief returns the type of a ssh key
* @param[in] key the ssh_key handle
* @returns one of SSH_KEYTYPE_RSA,SSH_KEYTYPE_DSS,SSH_KEYTYPE_RSA1
* @returns SSH_KEYTYPE_UNKNOWN if the type is unknown
*/
enum ssh_keytypes_e ssh_key_type(const ssh_key key){
if (key == NULL) {
return SSH_KEYTYPE_UNKNOWN;
}
return key->type;
}
/**
* @brief Convert a key type to a string.
*
* @param[in] type The type to convert.
*
* @return A string for the keytype or NULL if unknown.
*/
const char *ssh_key_type_to_char(enum ssh_keytypes_e type) {
switch (type) {
case SSH_KEYTYPE_DSS:
return "ssh-dss";
case SSH_KEYTYPE_RSA:
return "ssh-rsa";
case SSH_KEYTYPE_RSA1:
return "ssh-rsa1";
case SSH_KEYTYPE_ECDSA:
return "ssh-ecdsa";
case SSH_KEYTYPE_ED25519:
return "ssh-ed25519";
case SSH_KEYTYPE_DSS_CERT01:
return "ssh-dss-cert-v01@openssh.com";
case SSH_KEYTYPE_RSA_CERT01:
return "ssh-rsa-cert-v01@openssh.com";
case SSH_KEYTYPE_UNKNOWN:
return NULL;
}
/* We should never reach this */
return NULL;
}
/**
* @brief Convert a ssh key name to a ssh key type.
*
* @param[in] name The name to convert.
*
* @return The enum ssh key type.
*/
enum ssh_keytypes_e ssh_key_type_from_name(const char *name) {
if (name == NULL) {
return SSH_KEYTYPE_UNKNOWN;
}
if (strcmp(name, "rsa1") == 0) {
return SSH_KEYTYPE_RSA1;
} else if (strcmp(name, "rsa") == 0) {
return SSH_KEYTYPE_RSA;
} else if (strcmp(name, "dsa") == 0) {
return SSH_KEYTYPE_DSS;
} else if (strcmp(name, "ssh-rsa1") == 0) {
return SSH_KEYTYPE_RSA1;
} else if (strcmp(name, "ssh-rsa") == 0) {
return SSH_KEYTYPE_RSA;
} else if (strcmp(name, "ssh-dss") == 0) {
return SSH_KEYTYPE_DSS;
} else if (strcmp(name, "ssh-ecdsa") == 0
|| strcmp(name, "ecdsa") == 0
|| strcmp(name, "ecdsa-sha2-nistp256") == 0
|| strcmp(name, "ecdsa-sha2-nistp384") == 0
|| strcmp(name, "ecdsa-sha2-nistp521") == 0) {
return SSH_KEYTYPE_ECDSA;
} else if (strcmp(name, "ssh-ed25519") == 0){
return SSH_KEYTYPE_ED25519;
} else if (strcmp(name, "ssh-dss-cert-v01@openssh.com") == 0) {
return SSH_KEYTYPE_DSS_CERT01;
} else if (strcmp(name, "ssh-rsa-cert-v01@openssh.com") == 0) {
return SSH_KEYTYPE_RSA_CERT01;
}
return SSH_KEYTYPE_UNKNOWN;
}
/**
* @brief Check if the key has/is a public key.
*
* @param[in] k The key to check.
*
* @return 1 if it is a public key, 0 if not.
*/
int ssh_key_is_public(const ssh_key k) {
if (k == NULL) {
return 0;
}
return (k->flags & SSH_KEY_FLAG_PUBLIC) == SSH_KEY_FLAG_PUBLIC;
}
/**
* @brief Check if the key is a private key.
*
* @param[in] k The key to check.
*
* @return 1 if it is a private key, 0 if not.
*/
int ssh_key_is_private(const ssh_key k) {
if (k == NULL) {
return 0;
}
return (k->flags & SSH_KEY_FLAG_PRIVATE) == SSH_KEY_FLAG_PRIVATE;
}
/**
* @brief Compare keys if they are equal.
*
* @param[in] k1 The first key to compare.
*
* @param[in] k2 The second key to compare.
*
* @param[in] what What part or type of the key do you want to compare.
*
* @return 0 if equal, 1 if not.
*/
int ssh_key_cmp(const ssh_key k1,
const ssh_key k2,
enum ssh_keycmp_e what)
{
if (k1 == NULL || k2 == NULL) {
return 1;
}
if (k1->type != k2->type) {
SSH_LOG(SSH_LOG_WARN, "key types don't match!");
return 1;
}
if (what == SSH_KEY_CMP_PRIVATE) {
if (!ssh_key_is_private(k1) ||
!ssh_key_is_private(k2)) {
return 1;
}
}
if (k1->type == SSH_KEYTYPE_ED25519) {
return pki_ed25519_key_cmp(k1, k2, what);
}
return pki_key_compare(k1, k2, what);
}
ssh_signature ssh_signature_new(void)
{
struct ssh_signature_struct *sig;
sig = malloc(sizeof(struct ssh_signature_struct));
if (sig == NULL) {
return NULL;
}
ZERO_STRUCTP(sig);
return sig;
}
void ssh_signature_free(ssh_signature sig)
{
if (sig == NULL) {
return;
}
switch(sig->type) {
case SSH_KEYTYPE_DSS:
#ifdef HAVE_LIBGCRYPT
gcry_sexp_release(sig->dsa_sig);
#elif defined HAVE_LIBCRYPTO
DSA_SIG_free(sig->dsa_sig);
#endif
break;
case SSH_KEYTYPE_RSA:
case SSH_KEYTYPE_RSA1:
#ifdef HAVE_LIBGCRYPT
gcry_sexp_release(sig->rsa_sig);
#elif defined HAVE_LIBCRYPTO
SAFE_FREE(sig->rsa_sig);
#elif defined HAVE_LIBMBEDCRYPTO
SAFE_FREE(sig->rsa_sig);
#endif
break;
case SSH_KEYTYPE_ECDSA:
#ifdef HAVE_GCRYPT_ECC
gcry_sexp_release(sig->ecdsa_sig);
#elif defined(HAVE_LIBCRYPTO) && defined(HAVE_OPENSSL_ECC)
ECDSA_SIG_free(sig->ecdsa_sig);
#elif defined HAVE_LIBMBEDCRYPTO
bignum_free(sig->ecdsa_sig.r);
bignum_free(sig->ecdsa_sig.s);
#endif
break;
case SSH_KEYTYPE_ED25519:
SAFE_FREE(sig->ed25519_sig);
break;
case SSH_KEYTYPE_DSS_CERT01:
case SSH_KEYTYPE_RSA_CERT01:
case SSH_KEYTYPE_UNKNOWN:
break;
}
SAFE_FREE(sig);
}
/**
* @brief import a base64 formated key from a memory c-string
*
* @param[in] b64_key The c-string holding the base64 encoded key
*
* @param[in] passphrase The passphrase to decrypt the key, or NULL
*
* @param[in] auth_fn An auth function you may want to use or NULL.
*
* @param[in] auth_data Private data passed to the auth function.
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_ERROR in case of error, SSH_OK otherwise.
*
* @see ssh_key_free()
*/
int ssh_pki_import_privkey_base64(const char *b64_key,
const char *passphrase,
ssh_auth_callback auth_fn,
void *auth_data,
ssh_key *pkey)
{
ssh_key key;
int cmp;
if (b64_key == NULL || pkey == NULL) {
return SSH_ERROR;
}
if (b64_key == NULL || !*b64_key) {
return SSH_ERROR;
}
SSH_LOG(SSH_LOG_INFO,
"Trying to decode privkey passphrase=%s",
passphrase ? "true" : "false");
/* Test for OpenSSH key format first */
cmp = strncmp(b64_key, OPENSSH_HEADER_BEGIN, strlen(OPENSSH_HEADER_BEGIN));
if (cmp == 0) {
key = ssh_pki_openssh_privkey_import(b64_key,
passphrase,
auth_fn,
auth_data);
} else {
/* fallback on PEM decoder */
key = pki_private_key_from_base64(b64_key,
passphrase,
auth_fn,
auth_data);
}
if (key == NULL) {
return SSH_ERROR;
}
*pkey = key;
return SSH_OK;
}
/**
* @brief Import a key from a file.
*
* @param[in] filename The filename of the the private key.
*
* @param[in] passphrase The passphrase to decrypt the private key. Set to NULL
* if none is needed or it is unknown.
*
* @param[in] auth_fn An auth function you may want to use or NULL.
*
* @param[in] auth_data Private data passed to the auth function.
*
* @param[out] pkey A pointer to store the allocated ssh_key. You need to
* free the key.
*
* @returns SSH_OK on success, SSH_EOF if the file doesn't exist or permission
* denied, SSH_ERROR otherwise.
*
* @see ssh_key_free()
**/
int ssh_pki_import_privkey_file(const char *filename,
const char *passphrase,
ssh_auth_callback auth_fn,
void *auth_data,
ssh_key *pkey) {
struct stat sb;
char *key_buf;
FILE *file;
off_t size;
int rc;
if (pkey == NULL || filename == NULL || *filename == '\0') {
return SSH_ERROR;
}
file = fopen(filename, "rb");
if (file == NULL) {
SSH_LOG(SSH_LOG_WARN,
"Error opening %s: %s",
filename,
strerror(errno));
return SSH_EOF;
}
rc = fstat(fileno(file), &sb);
if (rc < 0) {
fclose(file);
SSH_LOG(SSH_LOG_WARN,
"Error getting stat of %s: %s",
filename,
strerror(errno));
switch (errno) {
case ENOENT:
case EACCES:
return SSH_EOF;
}
return SSH_ERROR;
}
if (sb.st_size > MAX_PRIVKEY_SIZE) {
SSH_LOG(SSH_LOG_WARN,
"Private key is bigger than 4M.");
fclose(file);
return SSH_ERROR;
}
key_buf = malloc(sb.st_size + 1);
if (key_buf == NULL) {
fclose(file);
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
return SSH_ERROR;
}
size = fread(key_buf, 1, sb.st_size, file);
fclose(file);
if (size != sb.st_size) {
SAFE_FREE(key_buf);
SSH_LOG(SSH_LOG_WARN,
"Error reading %s: %s",
filename,
strerror(errno));
return SSH_ERROR;
}
key_buf[size] = 0;
rc = ssh_pki_import_privkey_base64(key_buf,
passphrase,
auth_fn,
auth_data,
pkey);
SAFE_FREE(key_buf);
return rc;
}
/**
* @brief Export a private key to a pem file on disk, or OpenSSH format for
* keytype ssh-ed25519
*
* @param[in] privkey The private key to export.
*
* @param[in] passphrase The passphrase to use to encrypt the key with or
* NULL. An empty string means no passphrase.
*
* @param[in] auth_fn An auth function you may want to use or NULL.
*
* @param[in] auth_data Private data passed to the auth function.
*
* @param[in] filename The path where to store the pem file.
*
* @return SSH_OK on success, SSH_ERROR on error.
*/
int ssh_pki_export_privkey_file(const ssh_key privkey,
const char *passphrase,
ssh_auth_callback auth_fn,
void *auth_data,
const char *filename)
{
ssh_string blob;
FILE *fp;
int rc;
if (privkey == NULL || !ssh_key_is_private(privkey)) {
return SSH_ERROR;
}
fp = fopen(filename, "wb");
if (fp == NULL) {
SSH_LOG(SSH_LOG_FUNCTIONS, "Error opening %s: %s",
filename, strerror(errno));
return SSH_EOF;
}
if (privkey->type == SSH_KEYTYPE_ED25519){
blob = ssh_pki_openssh_privkey_export(privkey,
passphrase,
auth_fn,
auth_data);
} else {
blob = pki_private_key_to_pem(privkey,
passphrase,
auth_fn,
auth_data);
}
if (blob == NULL) {
fclose(fp);
return -1;
}
rc = fwrite(ssh_string_data(blob), ssh_string_len(blob), 1, fp);
ssh_string_free(blob);
if (rc != 1 || ferror(fp)) {
fclose(fp);
unlink(filename);
return SSH_ERROR;
}
fclose(fp);
return SSH_OK;
}
/* temporary function to migrate seemlessly to ssh_key */
ssh_public_key ssh_pki_convert_key_to_publickey(const ssh_key key) {
ssh_public_key pub;
ssh_key tmp;
if(key == NULL) {
return NULL;
}
tmp = ssh_key_dup(key);
if (tmp == NULL) {
return NULL;
}
pub = malloc(sizeof(struct ssh_public_key_struct));
if (pub == NULL) {
ssh_key_free(tmp);
return NULL;
}
ZERO_STRUCTP(pub);
pub->type = tmp->type;
pub->type_c = tmp->type_c;
pub->dsa_pub = tmp->dsa;
tmp->dsa = NULL;
pub->rsa_pub = tmp->rsa;
tmp->rsa = NULL;
ssh_key_free(tmp);
return pub;
}
ssh_private_key ssh_pki_convert_key_to_privatekey(const ssh_key key) {
ssh_private_key privkey;
privkey = malloc(sizeof(struct ssh_private_key_struct));
if (privkey == NULL) {
ssh_key_free(key);
return NULL;
}
privkey->type = key->type;
privkey->dsa_priv = key->dsa;
privkey->rsa_priv = key->rsa;
return privkey;
}
static int pki_import_pubkey_buffer(ssh_buffer buffer,
enum ssh_keytypes_e type,
ssh_key *pkey) {
ssh_key key;
int rc;
key = ssh_key_new();
if (key == NULL) {
return SSH_ERROR;
}
key->type = type;
key->type_c = ssh_key_type_to_char(type);
key->flags = SSH_KEY_FLAG_PUBLIC;
switch (type) {
case SSH_KEYTYPE_DSS:
{
ssh_string p;
ssh_string q;
ssh_string g;
ssh_string pubkey;
p = ssh_buffer_get_ssh_string(buffer);
if (p == NULL) {
goto fail;
}
q = ssh_buffer_get_ssh_string(buffer);
if (q == NULL) {
ssh_string_burn(p);
ssh_string_free(p);
goto fail;
}
g = ssh_buffer_get_ssh_string(buffer);
if (g == NULL) {
ssh_string_burn(p);
ssh_string_free(p);
ssh_string_burn(q);
ssh_string_free(q);
goto fail;
}
pubkey = ssh_buffer_get_ssh_string(buffer);
if (pubkey == NULL) {
ssh_string_burn(p);
ssh_string_free(p);
ssh_string_burn(q);
ssh_string_free(q);
ssh_string_burn(g);
ssh_string_free(g);
goto fail;
}
rc = pki_pubkey_build_dss(key, p, q, g, pubkey);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("p", ssh_string_data(p), ssh_string_len(p));
ssh_print_hexa("q", ssh_string_data(q), ssh_string_len(q));
ssh_print_hexa("g", ssh_string_data(g), ssh_string_len(g));
#endif
ssh_string_burn(p);
ssh_string_free(p);
ssh_string_burn(q);
ssh_string_free(q);
ssh_string_burn(g);
ssh_string_free(g);
ssh_string_burn(pubkey);
ssh_string_free(pubkey);
if (rc == SSH_ERROR) {
goto fail;
}
}
break;
case SSH_KEYTYPE_RSA:
case SSH_KEYTYPE_RSA1:
{
ssh_string e;
ssh_string n;
e = ssh_buffer_get_ssh_string(buffer);
if (e == NULL) {
goto fail;
}
n = ssh_buffer_get_ssh_string(buffer);
if (n == NULL) {
ssh_string_burn(e);
ssh_string_free(e);
goto fail;
}
rc = pki_pubkey_build_rsa(key, e, n);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("e", ssh_string_data(e), ssh_string_len(e));
ssh_print_hexa("n", ssh_string_data(n), ssh_string_len(n));
#endif
ssh_string_burn(e);
ssh_string_free(e);
ssh_string_burn(n);
ssh_string_free(n);
if (rc == SSH_ERROR) {
goto fail;
}
}
break;
#ifdef HAVE_ECC
case SSH_KEYTYPE_ECDSA:
{
ssh_string e;
ssh_string i;
int nid;
i = ssh_buffer_get_ssh_string(buffer);
if (i == NULL) {
goto fail;
}
nid = pki_key_ecdsa_nid_from_name(ssh_string_get_char(i));
ssh_string_free(i);
if (nid == -1) {
goto fail;
}
e = ssh_buffer_get_ssh_string(buffer);
if (e == NULL) {
goto fail;
}
rc = pki_pubkey_build_ecdsa(key, nid, e);
ssh_string_burn(e);
ssh_string_free(e);
if (rc < 0) {
goto fail;
}
/* Update key type */
key->type_c = ssh_pki_key_ecdsa_name(key);
}
break;
#endif
case SSH_KEYTYPE_ED25519:
{
ssh_string pubkey = ssh_buffer_get_ssh_string(buffer);
if (ssh_string_len(pubkey) != ED25519_PK_LEN) {
SSH_LOG(SSH_LOG_WARN, "Invalid public key length");
ssh_string_burn(pubkey);
ssh_string_free(pubkey);
goto fail;
}
key->ed25519_pubkey = malloc(ED25519_PK_LEN);
if (key->ed25519_pubkey == NULL) {
ssh_string_burn(pubkey);
ssh_string_free(pubkey);
goto fail;
}
memcpy(key->ed25519_pubkey, ssh_string_data(pubkey), ED25519_PK_LEN);
ssh_string_burn(pubkey);
ssh_string_free(pubkey);
}
break;
case SSH_KEYTYPE_DSS_CERT01:
case SSH_KEYTYPE_RSA_CERT01:
case SSH_KEYTYPE_UNKNOWN:
default:
SSH_LOG(SSH_LOG_WARN, "Unknown public key protocol %d", type);
goto fail;
}
*pkey = key;
return SSH_OK;
fail:
ssh_key_free(key);
return SSH_ERROR;
}
static int pki_import_cert_buffer(ssh_buffer buffer,
enum ssh_keytypes_e type,
ssh_key *pkey) {
ssh_buffer cert;
ssh_string type_s;
ssh_key key;
int rc;
key = ssh_key_new();
if (key == NULL) {
return SSH_ERROR;
}
cert = ssh_buffer_new();
if (cert == NULL) {
ssh_key_free(key);
return SSH_ERROR;
}
key->type = type;
key->type_c = ssh_key_type_to_char(type);
key->flags = SSH_KEY_FLAG_PUBLIC;
/*
* The cert blob starts with the key type as an ssh_string, but this
* string has been read out of the buffer to identify the key type.
* Simply add it again as first element before copying the rest.
*/
type_s = ssh_string_from_char(key->type_c);
if (type_s == NULL) {
goto fail;
}
rc = ssh_buffer_add_ssh_string(cert, type_s);
ssh_string_free(type_s);
if (rc != 0) {
goto fail;
}
rc = ssh_buffer_add_buffer(cert, buffer);
if (rc != 0) {
goto fail;
}
key->cert = (void*) cert;
*pkey = key;
return SSH_OK;
fail:
ssh_key_free(key);
ssh_buffer_free(cert);
return SSH_ERROR;
}
/**
* @brief Import a base64 formated public key from a memory c-string.
*
* @param[in] b64_key The base64 key to format.
*
* @param[in] type The type of the key to format.
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_base64(const char *b64_key,
enum ssh_keytypes_e type,
ssh_key *pkey) {
ssh_buffer buffer;
ssh_string type_s;
int rc;
if (b64_key == NULL || pkey == NULL) {
return SSH_ERROR;
}
buffer = base64_to_bin(b64_key);
if (buffer == NULL) {
return SSH_ERROR;
}
type_s = ssh_buffer_get_ssh_string(buffer);
if (type_s == NULL) {
ssh_buffer_free(buffer);
return SSH_ERROR;
}
ssh_string_free(type_s);
if (type == SSH_KEYTYPE_RSA_CERT01 ||
type == SSH_KEYTYPE_DSS_CERT01) {
rc = pki_import_cert_buffer(buffer, type, pkey);
} else {
rc = pki_import_pubkey_buffer(buffer, type, pkey);
}
ssh_buffer_free(buffer);
return rc;
}
/**
* @internal
*
* @brief Import a public key from a ssh string.
*
* @param[in] key_blob The key blob to import as specified in RFC 4253 section
* 6.6 "Public Key Algorithms".
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_blob(const ssh_string key_blob,
ssh_key *pkey) {
ssh_buffer buffer;
ssh_string type_s = NULL;
enum ssh_keytypes_e type;
int rc;
if (key_blob == NULL || pkey == NULL) {
return SSH_ERROR;
}
buffer = ssh_buffer_new();
if (buffer == NULL) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
return SSH_ERROR;
}
rc = ssh_buffer_add_data(buffer, ssh_string_data(key_blob),
ssh_string_len(key_blob));
if (rc < 0) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
goto fail;
}
type_s = ssh_buffer_get_ssh_string(buffer);
if (type_s == NULL) {
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
goto fail;
}
type = ssh_key_type_from_name(ssh_string_get_char(type_s));
if (type == SSH_KEYTYPE_UNKNOWN) {
SSH_LOG(SSH_LOG_WARN, "Unknown key type found!");
goto fail;
}
ssh_string_free(type_s);
if (type == SSH_KEYTYPE_RSA_CERT01 ||
type == SSH_KEYTYPE_DSS_CERT01) {
rc = pki_import_cert_buffer(buffer, type, pkey);
} else {
rc = pki_import_pubkey_buffer(buffer, type, pkey);
}
ssh_buffer_free(buffer);
return rc;
fail:
ssh_buffer_free(buffer);
ssh_string_free(type_s);
return SSH_ERROR;
}
/**
* @brief Import a public key from the given filename.
*
* @param[in] filename The path to the public key.
*
* @param[out] pkey A pointer to store the allocated public key. You need to
* free the memory.
*
* @returns SSH_OK on success, SSH_EOF if the file doesn't exist or permission
* denied, SSH_ERROR otherwise.
*
* @see ssh_key_free()
*/
int ssh_pki_import_pubkey_file(const char *filename, ssh_key *pkey)
{
enum ssh_keytypes_e type;
struct stat sb;
char *key_buf, *p;
const char *q;
FILE *file;
off_t size;
int rc;
if (pkey == NULL || filename == NULL || *filename == '\0') {
return SSH_ERROR;
}
file = fopen(filename, "rb");
if (file == NULL) {
SSH_LOG(SSH_LOG_WARN, "Error opening %s: %s",
filename, strerror(errno));
return SSH_EOF;
}
rc = fstat(fileno(file), &sb);
if (rc < 0) {
fclose(file);
SSH_LOG(SSH_LOG_WARN, "Error gettint stat of %s: %s",
filename, strerror(errno));
switch (errno) {
case ENOENT:
case EACCES:
return SSH_EOF;
}
return SSH_ERROR;
}
if (sb.st_size > MAX_PUBKEY_SIZE) {
fclose(file);
return SSH_ERROR;
}
key_buf = malloc(sb.st_size + 1);
if (key_buf == NULL) {
fclose(file);
SSH_LOG(SSH_LOG_WARN, "Out of memory!");
return SSH_ERROR;
}
size = fread(key_buf, 1, sb.st_size, file);
fclose(file);
if (size != sb.st_size) {
SAFE_FREE(key_buf);
SSH_LOG(SSH_LOG_WARN, "Error reading %s: %s",
filename, strerror(errno));
return SSH_ERROR;
}
key_buf[size] = '\0';
q = p = key_buf;
while (!isspace((int)*p)) p++;
*p = '\0';
type = ssh_key_type_from_name(q);
if (type == SSH_KEYTYPE_UNKNOWN) {
SAFE_FREE(key_buf);
return SSH_ERROR;
}
q = ++p;
while (!isspace((int)*p)) p++;
*p = '\0';
rc = ssh_pki_import_pubkey_base64(q, type, pkey);
SAFE_FREE(key_buf);
return rc;
}
/**
* @brief Import a base64 formated certificate from a memory c-string.
*
* @param[in] b64_cert The base64 cert to format.
*
* @param[in] type The type of the cert to format.
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_cert_base64(const char *b64_cert,
enum ssh_keytypes_e type,
ssh_key *pkey) {
return ssh_pki_import_pubkey_base64(b64_cert, type, pkey);
}
/**
* @internal
*
* @brief Import a certificate from a ssh string.
*
* @param[in] cert_blob The cert blob to import as specified in RFC 4253 section
* 6.6 "Public Key Algorithms".
*
* @param[out] pkey A pointer where the allocated key can be stored. You
* need to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_import_cert_blob(const ssh_string cert_blob,
ssh_key *pkey) {
return ssh_pki_import_pubkey_blob(cert_blob, pkey);
}
/**
* @brief Import a certificate from the given filename.
*
* @param[in] filename The path to the certificate.
*
* @param[out] pkey A pointer to store the allocated certificate. You need to
* free the memory.
*
* @returns SSH_OK on success, SSH_EOF if the file doesn't exist or permission
* denied, SSH_ERROR otherwise.
*
* @see ssh_key_free()
*/
int ssh_pki_import_cert_file(const char *filename, ssh_key *pkey)
{
return ssh_pki_import_pubkey_file(filename, pkey);
}
/**
* @brief Generates a keypair.
*
* @param[in] type Type of key to create
*
* @param[in] parameter Parameter to the creation of key:
* rsa : length of the key in bits (e.g. 1024, 2048, 4096)
* dsa : length of the key in bits (e.g. 1024, 2048, 3072)
* ecdsa : bits of the key (e.g. 256, 384, 512)
* @param[out] pkey A pointer to store the allocated private key. You need
* to free the memory.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @warning Generating a key pair may take some time.
*/
int ssh_pki_generate(enum ssh_keytypes_e type, int parameter,
ssh_key *pkey){
int rc;
ssh_key key = ssh_key_new();
if (key == NULL) {
return SSH_ERROR;
}
key->type = type;
key->type_c = ssh_key_type_to_char(type);
key->flags = SSH_KEY_FLAG_PRIVATE | SSH_KEY_FLAG_PUBLIC;
switch(type){
case SSH_KEYTYPE_RSA:
case SSH_KEYTYPE_RSA1:
rc = pki_key_generate_rsa(key, parameter);
if(rc == SSH_ERROR)
goto error;
break;
case SSH_KEYTYPE_DSS:
rc = pki_key_generate_dss(key, parameter);
if(rc == SSH_ERROR)
goto error;
break;
#ifdef HAVE_ECC
case SSH_KEYTYPE_ECDSA:
rc = pki_key_generate_ecdsa(key, parameter);
if (rc == SSH_ERROR) {
goto error;
}
/* Update key type */
key->type_c = ssh_pki_key_ecdsa_name(key);
break;
#endif
case SSH_KEYTYPE_ED25519:
rc = pki_key_generate_ed25519(key);
if (rc == SSH_ERROR) {
goto error;
}
break;
case SSH_KEYTYPE_DSS_CERT01:
case SSH_KEYTYPE_RSA_CERT01:
case SSH_KEYTYPE_UNKNOWN:
default:
goto error;
}
*pkey = key;
return SSH_OK;
error:
ssh_key_free(key);
return SSH_ERROR;
}
/**
* @brief Create a public key from a private key.
*
* @param[in] privkey The private key to get the public key from.
*
* @param[out] pkey A pointer to store the newly allocated public key. You
* NEED to free the key.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_key_free()
*/
int ssh_pki_export_privkey_to_pubkey(const ssh_key privkey,
ssh_key *pkey)
{
ssh_key pubkey;
if (privkey == NULL || !ssh_key_is_private(privkey)) {
return SSH_ERROR;
}
pubkey = pki_key_dup(privkey, 1);
if (pubkey == NULL) {
return SSH_ERROR;
}
*pkey = pubkey;
return SSH_OK;
}
/**
* @internal
*
* @brief Create a key_blob from a public key.
*
* The "key_blob" is encoded as per RFC 4253 section 6.6 "Public Key
* Algorithms" for any of the supported protocol 2 key types.
* Encoding of EC keys is described in RFC 5656 section 3.1 "Key
* Format".
*
* @param[in] key A public or private key to create the public ssh_string
* from.
*
* @param[out] pblob A pointer to store the newly allocated key blob. You
* NEED to free it.
*
* @return SSH_OK on success, SSH_ERROR otherwise.
*
* @see ssh_string_free()
*/
int ssh_pki_export_pubkey_blob(const ssh_key key,
ssh_string *pblob)
{
ssh_string blob;
if (key == NULL) {
return SSH_OK;
}
blob = pki_publickey_to_blob(key);
if (blob == NULL) {
return SSH_ERROR;
}
*pblob = blob;
return SSH_OK;
}
/**
* @brief Convert a public key to a base64 encoded key.
*
* @param[in] key The key to hash
*
* @param[out] b64_key A pointer to store the allocated base64 encoded key. You
* need to free the buffer.
*
* @return SSH_OK on success, SSH_ERROR on error.
*
* @see ssh_string_free_char()
*/
int ssh_pki_export_pubkey_base64(const ssh_key key,
char **b64_key)
{
ssh_string key_blob;
unsigned char *b64;
if (key == NULL || b64_key == NULL) {
return SSH_ERROR;
}
key_blob = pki_publickey_to_blob(key);
if (key_blob == NULL) {
return SSH_ERROR;
}
b64 = bin_to_base64(ssh_string_data(key_blob), ssh_string_len(key_blob));
ssh_string_free(key_blob);
if (b64 == NULL) {
return SSH_ERROR;
}
*b64_key = (char *)b64;
return SSH_OK;
}
int ssh_pki_export_pubkey_file(const ssh_key key,
const char *filename)
{
char key_buf[4096];
char host[256];
char *b64_key;
char *user;
FILE *fp;
int rc;
if (key == NULL || filename == NULL || *filename == '\0') {
return SSH_ERROR;
}
user = ssh_get_local_username();
if (user == NULL) {
return SSH_ERROR;
}
rc = gethostname(host, sizeof(host));
if (rc < 0) {
free(user);
return SSH_ERROR;
}
rc = ssh_pki_export_pubkey_base64(key, &b64_key);
if (rc < 0) {
free(user);
return SSH_ERROR;
}
rc = snprintf(key_buf, sizeof(key_buf),
"%s %s %s@%s\n",
key->type_c,
b64_key,
user,
host);
free(user);
free(b64_key);
if (rc < 0) {
return SSH_ERROR;
}
fp = fopen(filename, "wb+");
if (fp == NULL) {
return SSH_ERROR;
}
rc = fwrite(key_buf, strlen(key_buf), 1, fp);
if (rc != 1 || ferror(fp)) {
fclose(fp);
unlink(filename);
return SSH_ERROR;
}
fclose(fp);
return SSH_OK;
}
/**
* @brief Copy the certificate part of a public key into a private key.
*
* @param[in] certkey The certificate key.
*
* @param[in] privkey The target private key to copy the certificate to.
*
* @returns SSH_OK on success, SSH_ERROR otherwise.
**/
int ssh_pki_copy_cert_to_privkey(const ssh_key certkey, ssh_key privkey) {
ssh_buffer cert_buffer;
int rc;
if (certkey == NULL || privkey == NULL) {
return SSH_ERROR;
}
if (privkey->cert != NULL) {
return SSH_ERROR;
}
if (certkey->cert == NULL) {
return SSH_ERROR;
}
cert_buffer = ssh_buffer_new();
if (cert_buffer == NULL) {
return SSH_ERROR;
}
rc = ssh_buffer_add_buffer(cert_buffer, certkey->cert);
if (rc != 0) {
ssh_buffer_free(cert_buffer);
return SSH_ERROR;
}
privkey->cert = cert_buffer;
privkey->cert_type = certkey->type;
return SSH_OK;
}
int ssh_pki_export_pubkey_rsa1(const ssh_key key,
const char *host,
char *rsa1,
size_t rsa1_len)
{
return pki_export_pubkey_rsa1(key, host, rsa1, rsa1_len);
}
int ssh_pki_export_signature_blob(const ssh_signature sig,
ssh_string *sig_blob)
{
ssh_buffer buf = NULL;
ssh_string str;
int rc;
if (sig == NULL || sig_blob == NULL) {
return SSH_ERROR;
}
buf = ssh_buffer_new();
if (buf == NULL) {
return SSH_ERROR;
}
str = ssh_string_from_char(sig->type_c);
if (str == NULL) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
rc = ssh_buffer_add_ssh_string(buf, str);
ssh_string_free(str);
if (rc < 0) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
str = pki_signature_to_blob(sig);
if (str == NULL) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
rc = ssh_buffer_add_ssh_string(buf, str);
ssh_string_free(str);
if (rc < 0) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
str = ssh_string_new(ssh_buffer_get_len(buf));
if (str == NULL) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
ssh_string_fill(str, ssh_buffer_get(buf), ssh_buffer_get_len(buf));
ssh_buffer_free(buf);
*sig_blob = str;
return SSH_OK;
}
int ssh_pki_import_signature_blob(const ssh_string sig_blob,
const ssh_key pubkey,
ssh_signature *psig)
{
ssh_signature sig;
enum ssh_keytypes_e type;
ssh_string str;
ssh_buffer buf;
int rc;
if (sig_blob == NULL || psig == NULL) {
return SSH_ERROR;
}
buf = ssh_buffer_new();
if (buf == NULL) {
return SSH_ERROR;
}
rc = ssh_buffer_add_data(buf,
ssh_string_data(sig_blob),
ssh_string_len(sig_blob));
if (rc < 0) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
str = ssh_buffer_get_ssh_string(buf);
if (str == NULL) {
ssh_buffer_free(buf);
return SSH_ERROR;
}
type = ssh_key_type_from_name(ssh_string_get_char(str));
ssh_string_free(str);
str = ssh_buffer_get_ssh_string(buf);
ssh_buffer_free(buf);
if (str == NULL) {
return SSH_ERROR;
}
sig = pki_signature_from_blob(pubkey, str, type);
ssh_string_free(str);
if (sig == NULL) {
return SSH_ERROR;
}
*psig = sig;
return SSH_OK;
}
int ssh_pki_signature_verify_blob(ssh_session session,
ssh_string sig_blob,
const ssh_key key,
unsigned char *digest,
size_t dlen)
{
ssh_signature sig;
int rc;
rc = ssh_pki_import_signature_blob(sig_blob, key, &sig);
if (rc < 0) {
return SSH_ERROR;
}
SSH_LOG(SSH_LOG_FUNCTIONS,
"Going to verify a %s type signature",
key->type_c);
if (key->type == SSH_KEYTYPE_ECDSA) {
#if HAVE_ECC
unsigned char ehash[EVP_DIGEST_LEN] = {0};
uint32_t elen;
evp(key->ecdsa_nid, digest, dlen, ehash, &elen);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("Hash to be verified with ecdsa",
ehash, elen);
#endif
rc = pki_signature_verify(session,
sig,
key,
ehash,
elen);
#endif
} else if (key->type == SSH_KEYTYPE_ED25519) {
rc = pki_signature_verify(session, sig, key, digest, dlen);
} else {
unsigned char hash[SHA_DIGEST_LEN] = {0};
sha1(digest, dlen, hash);
#ifdef DEBUG_CRYPTO
ssh_print_hexa(key->type == SSH_KEYTYPE_DSS
? "Hash to be verified with DSA"
: "Hash to be verified with RSA",
hash,
SHA_DIGEST_LEN);
#endif
rc = pki_signature_verify(session,
sig,
key,
hash,
SHA_DIGEST_LEN);
}
ssh_signature_free(sig);
return rc;
}
/*
* This function signs the session id as a string then
* the content of sigbuf */
ssh_string ssh_pki_do_sign(ssh_session session,
ssh_buffer sigbuf,
const ssh_key privkey) {
struct ssh_crypto_struct *crypto =
session->current_crypto ? session->current_crypto :
session->next_crypto;
ssh_signature sig = NULL;
ssh_string sig_blob;
ssh_string session_id;
int rc;
if (privkey == NULL || !ssh_key_is_private(privkey)) {
return NULL;
}
session_id = ssh_string_new(crypto->digest_len);
if (session_id == NULL) {
return NULL;
}
ssh_string_fill(session_id, crypto->session_id, crypto->digest_len);
if (privkey->type == SSH_KEYTYPE_ECDSA) {
#ifdef HAVE_ECC
unsigned char ehash[EVP_DIGEST_LEN] = {0};
uint32_t elen;
EVPCTX ctx;
ctx = evp_init(privkey->ecdsa_nid);
if (ctx == NULL) {
ssh_string_free(session_id);
return NULL;
}
evp_update(ctx, session_id, ssh_string_len(session_id) + 4);
evp_update(ctx, ssh_buffer_get(sigbuf), ssh_buffer_get_len(sigbuf));
evp_final(ctx, ehash, &elen);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("Hash being signed", ehash, elen);
#endif
sig = pki_do_sign(privkey, ehash, elen);
#endif
} else if (privkey->type == SSH_KEYTYPE_ED25519){
ssh_buffer buf;
buf = ssh_buffer_new();
if (buf == NULL) {
ssh_string_free(session_id);
return NULL;
}
ssh_buffer_set_secure(buf);
rc = ssh_buffer_pack(buf,
"SP",
session_id,
ssh_buffer_get_len(sigbuf), ssh_buffer_get(sigbuf));
if (rc != SSH_OK) {
ssh_string_free(session_id);
ssh_buffer_free(buf);
return NULL;
}
sig = pki_do_sign(privkey,
ssh_buffer_get(buf),
ssh_buffer_get_len(buf));
ssh_buffer_free(buf);
} else {
unsigned char hash[SHA_DIGEST_LEN] = {0};
SHACTX ctx;
ctx = sha1_init();
if (ctx == NULL) {
ssh_string_free(session_id);
return NULL;
}
sha1_update(ctx, session_id, ssh_string_len(session_id) + 4);
sha1_update(ctx, ssh_buffer_get(sigbuf), ssh_buffer_get_len(sigbuf));
sha1_final(hash, ctx);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("Hash being signed", hash, SHA_DIGEST_LEN);
#endif
sig = pki_do_sign(privkey, hash, SHA_DIGEST_LEN);
}
ssh_string_free(session_id);
if (sig == NULL) {
return NULL;
}
rc = ssh_pki_export_signature_blob(sig, &sig_blob);
ssh_signature_free(sig);
if (rc < 0) {
return NULL;
}
return sig_blob;
}
#ifndef _WIN32
ssh_string ssh_pki_do_sign_agent(ssh_session session,
struct ssh_buffer_struct *buf,
const ssh_key pubkey) {
struct ssh_crypto_struct *crypto;
ssh_string session_id;
ssh_string sig_blob;
ssh_buffer sig_buf;
int rc;
if (session->current_crypto) {
crypto = session->current_crypto;
} else {
crypto = session->next_crypto;
}
/* prepend session identifier */
session_id = ssh_string_new(crypto->digest_len);
if (session_id == NULL) {
return NULL;
}
ssh_string_fill(session_id, crypto->session_id, crypto->digest_len);
sig_buf = ssh_buffer_new();
if (sig_buf == NULL) {
ssh_string_free(session_id);
return NULL;
}
rc = ssh_buffer_add_ssh_string(sig_buf, session_id);
if (rc < 0) {
ssh_string_free(session_id);
ssh_buffer_free(sig_buf);
return NULL;
}
ssh_string_free(session_id);
/* append out buffer */
if (ssh_buffer_add_buffer(sig_buf, buf) < 0) {
ssh_buffer_free(sig_buf);
return NULL;
}
/* create signature */
sig_blob = ssh_agent_sign_data(session, pubkey, sig_buf);
ssh_buffer_free(sig_buf);
return sig_blob;
}
#endif /* _WIN32 */
#ifdef WITH_SERVER
ssh_string ssh_srv_pki_do_sign_sessionid(ssh_session session,
const ssh_key privkey)
{
struct ssh_crypto_struct *crypto;
ssh_signature sig = NULL;
ssh_string sig_blob;
int rc;
if (session == NULL || privkey == NULL || !ssh_key_is_private(privkey)) {
return NULL;
}
crypto = session->next_crypto ? session->next_crypto :
session->current_crypto;
if (crypto->secret_hash == NULL){
ssh_set_error(session,SSH_FATAL,"Missing secret_hash");
return NULL;
}
if (privkey->type == SSH_KEYTYPE_ECDSA) {
#ifdef HAVE_ECC
unsigned char ehash[EVP_DIGEST_LEN] = {0};
uint32_t elen;
evp(privkey->ecdsa_nid, crypto->secret_hash, crypto->digest_len,
ehash, &elen);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("Hash being signed", ehash, elen);
#endif
sig = pki_do_sign_sessionid(privkey, ehash, elen);
if (sig == NULL) {
return NULL;
}
#endif
} else if (privkey->type == SSH_KEYTYPE_ED25519) {
sig = ssh_signature_new();
if (sig == NULL){
return NULL;
}
sig->type = privkey->type;
sig->type_c = privkey->type_c;
rc = pki_ed25519_sign(privkey,
sig,
crypto->secret_hash,
crypto->digest_len);
if (rc != SSH_OK){
ssh_signature_free(sig);
sig = NULL;
}
} else {
unsigned char hash[SHA_DIGEST_LEN] = {0};
SHACTX ctx;
ctx = sha1_init();
if (ctx == NULL) {
return NULL;
}
sha1_update(ctx, crypto->secret_hash, crypto->digest_len);
sha1_final(hash, ctx);
#ifdef DEBUG_CRYPTO
ssh_print_hexa("Hash being signed", hash, SHA_DIGEST_LEN);
#endif
sig = pki_do_sign_sessionid(privkey, hash, SHA_DIGEST_LEN);
if (sig == NULL) {
return NULL;
}
}
rc = ssh_pki_export_signature_blob(sig, &sig_blob);
ssh_signature_free(sig);
if (rc < 0) {
return NULL;
}
return sig_blob;
}
#endif /* WITH_SERVER */
/**
* @}
*/
Показать git blame Копировать постоянную ссылку