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/*
* Copyright (c) 2015, Vsevolod Stakhov
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "rspamadm.h"
#include "cryptobox.h"
#include "printf.h"
#include "http.h"
#include "ucl.h"
#include "keypair_private.h"
#include "libutil/str_util.h"
static gboolean hex_encode = FALSE;
static gboolean raw = FALSE;
static gboolean openssl = FALSE;
static gboolean ucl = FALSE;
static gboolean sign = FALSE;
static void rspamadm_keypair (gint argc, gchar **argv);
static const char *rspamadm_keypair_help (gboolean full_help);
struct rspamadm_command keypair_command = {
.name = "keypair",
.flags = 0,
.help = rspamadm_keypair_help,
.run = rspamadm_keypair
};
static GOptionEntry entries[] = {
{"hex", 'x', 0, G_OPTION_ARG_NONE, &hex_encode,
"Use hex encoding", NULL},
{"raw", 'r', 0, G_OPTION_ARG_NONE, &raw,
"Print just keys, no description", NULL},
{"openssl", 'o', 0, G_OPTION_ARG_NONE, &openssl,
"Generate openssl nistp256 keypair not curve25519 one", NULL},
{"sign", 's', 0, G_OPTION_ARG_NONE, &sign,
"Generate keypair for digital signing", NULL},
{"ucl", 'u', 0, G_OPTION_ARG_NONE, &ucl,
"Generate ucl config", NULL},
{NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL, NULL}
};
static const char *
rspamadm_keypair_help (gboolean full_help)
{
const char *help_str;
if (full_help) {
help_str = "Create key pairs for httpcrypt\n\n"
"Usage: rspamadm keypair [-x -r]\n"
"Where options are:\n\n"
"-x: encode with hex instead of base32\n"
"-r: print raw base32/hex\n"
"-o: generate openssl nistp256 keypair\n"
"-s: generate keypair suitable for signatures\n"
"-u: generate ucl config for keypair\n"
"--help: shows available options and commands";
}
else {
help_str = "Create encryption key pairs";
}
return help_str;
}
static void
rspamadm_keypair (gint argc, gchar **argv)
{
GOptionContext *context;
GError *error = NULL;
gpointer keypair;
GString *keypair_out;
gint how;
ucl_object_t *ucl_out, *elt;
struct ucl_emitter_functions *ucl_emit_subr;
guchar *sig_sk, *sig_pk;
gchar *sig_sk_encoded, *sig_pk_encoded, *pk_id_encoded;
guchar kh[rspamd_cryptobox_HASHBYTES];
const gchar *encoding;
context = g_option_context_new (
"keypair - create encryption keys");
g_option_context_set_summary (context,
"Summary:\n Rspamd administration utility version "
RVERSION
"\n Release id: "
RID);
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
fprintf (stderr, "option parsing failed: %s\n", error->message);
g_error_free (error);
exit (1);
}
if (openssl) {
if (!rspamd_cryptobox_openssl_mode (TRUE)) {
fprintf (stderr, "cannot enable openssl mode (incompatible openssl)\n");
exit (1);
}
}
if (!sign) {
keypair = rspamd_http_connection_gen_key ();
if (keypair == NULL) {
exit (EXIT_FAILURE);
}
how = 0;
if (hex_encode) {
how |= RSPAMD_KEYPAIR_HEX;
encoding = "hex";
}
else {
how |= RSPAMD_KEYPAIR_BASE32;
encoding = "base32";
}
if (ucl) {
ucl_out = ucl_object_typed_new (UCL_OBJECT);
elt = ucl_object_typed_new (UCL_OBJECT);
ucl_object_insert_key (ucl_out, elt, "keypair", 0, false);
/* pubkey part */
keypair_out = rspamd_http_connection_print_key (keypair,
RSPAMD_KEYPAIR_PUBKEY|how);
ucl_object_insert_key (elt,
ucl_object_fromlstring (keypair_out->str, keypair_out->len),
"pubkey", 0, false);
g_string_free (keypair_out, TRUE);
/* privkey part */
keypair_out = rspamd_http_connection_print_key (keypair,
RSPAMD_KEYPAIR_PRIVKEY|how);
ucl_object_insert_key (elt,
ucl_object_fromlstring (keypair_out->str, keypair_out->len),
"privkey", 0, false);
g_string_free (keypair_out, TRUE);
keypair_out = rspamd_http_connection_print_key (keypair,
RSPAMD_KEYPAIR_ID|how);
ucl_object_insert_key (elt,
ucl_object_fromlstring (keypair_out->str, keypair_out->len),
"id", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring (encoding),
"encoding", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring (openssl ? "nistp256" : "curve25519"),
"algorithm", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring ("kex"),
"type", 0, false);
ucl_emit_subr = ucl_object_emit_file_funcs (stdout);
ucl_object_emit_full (ucl_out, UCL_EMIT_CONFIG, ucl_emit_subr);
ucl_object_emit_funcs_free (ucl_emit_subr);
ucl_object_unref (ucl_out);
}
else {
how |= RSPAMD_KEYPAIR_PUBKEY | RSPAMD_KEYPAIR_PRIVKEY;
if (!raw) {
how |= RSPAMD_KEYPAIR_HUMAN|RSPAMD_KEYPAIR_ID;
}
keypair_out = rspamd_http_connection_print_key (keypair, how);
rspamd_printf ("%v", keypair_out);
}
rspamd_http_connection_key_unref (keypair);
rspamd_explicit_memzero (keypair_out->str, keypair_out->len);
g_string_free (keypair_out, TRUE);
}
else {
sig_sk = g_malloc (rspamd_cryptobox_sk_sig_bytes ());
sig_pk = g_malloc (rspamd_cryptobox_pk_sig_bytes ());
rspamd_cryptobox_keypair_sig (sig_pk, sig_sk);
rspamd_cryptobox_hash (kh, sig_pk, rspamd_cryptobox_pk_sig_bytes (),
NULL, 0);
if (hex_encode) {
encoding = "hex";
sig_pk_encoded = rspamd_encode_hex (sig_pk,
rspamd_cryptobox_pk_sig_bytes ());
sig_sk_encoded = rspamd_encode_hex (sig_sk,
rspamd_cryptobox_sk_sig_bytes ());
pk_id_encoded = rspamd_encode_hex (kh, sizeof (kh));
}
else {
encoding = "base32";
sig_pk_encoded = rspamd_encode_base32 (sig_pk,
rspamd_cryptobox_pk_sig_bytes ());
sig_sk_encoded = rspamd_encode_base32 (sig_sk,
rspamd_cryptobox_sk_sig_bytes ());
pk_id_encoded = rspamd_encode_base32 (kh, sizeof (kh));
}
if (ucl) {
ucl_out = ucl_object_typed_new (UCL_OBJECT);
elt = ucl_object_typed_new (UCL_OBJECT);
ucl_object_insert_key (ucl_out, elt, "keypair", 0, false);
/* pubkey part */
ucl_object_insert_key (elt,
ucl_object_fromstring (sig_pk_encoded),
"pubkey", 0, false);
/* privkey part */
ucl_object_insert_key (elt,
ucl_object_fromstring (sig_sk_encoded),
"privkey", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring (pk_id_encoded),
"id", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring (encoding),
"encoding", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring (openssl ? "nistp256" : "curve25519"),
"algorithm", 0, false);
ucl_object_insert_key (elt,
ucl_object_fromstring ("sign"),
"type", 0, false);
ucl_emit_subr = ucl_object_emit_file_funcs (stdout);
ucl_object_emit_full (ucl_out, UCL_EMIT_CONFIG, ucl_emit_subr);
ucl_object_emit_funcs_free (ucl_emit_subr);
ucl_object_unref (ucl_out);
}
else {
rspamd_printf ("Public key: %s\nPrivate key: %s\nKey ID: %s\n",
sig_pk_encoded,
sig_sk_encoded,
pk_id_encoded);
}
rspamd_explicit_memzero (sig_sk, rspamd_cryptobox_sk_sig_bytes ());
rspamd_explicit_memzero (sig_sk_encoded, strlen (sig_sk_encoded));
g_free (sig_pk);
g_free (sig_sk);
g_free (sig_pk_encoded);
g_free (sig_sk_encoded);
g_free (pk_id_encoded);
}
}
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