mirror of
https://github.com/samba-team/samba.git
synced 2025-01-13 13:18:06 +03:00
lib/crypto: Remove unused RC4 code from Samba
Signed-off-by: Andrew Bartlett <abartlet@samba.org> Reviewed-by: Andreas Schneider <asn@samba.org>
This commit is contained in:
parent
2d54559aad
commit
e9859ad356
lib/crypto
@ -1,93 +0,0 @@
|
||||
/*
|
||||
Unix SMB/CIFS implementation.
|
||||
|
||||
An implementation of the arcfour algorithm
|
||||
|
||||
Copyright (C) Andrew Tridgell 1998
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program 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 General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
#include "replace.h"
|
||||
#include "../lib/crypto/arcfour.h"
|
||||
|
||||
/* initialise the arcfour sbox with key */
|
||||
_PUBLIC_ void arcfour_init(struct arcfour_state *state, const DATA_BLOB *key)
|
||||
{
|
||||
size_t ind;
|
||||
uint8_t j = 0;
|
||||
for (ind = 0; ind < sizeof(state->sbox); ind++) {
|
||||
state->sbox[ind] = (uint8_t)ind;
|
||||
}
|
||||
|
||||
for (ind = 0; ind < sizeof(state->sbox); ind++) {
|
||||
uint8_t tc;
|
||||
|
||||
j += (state->sbox[ind] + key->data[ind%key->length]);
|
||||
|
||||
tc = state->sbox[ind];
|
||||
state->sbox[ind] = state->sbox[j];
|
||||
state->sbox[j] = tc;
|
||||
}
|
||||
state->index_i = 0;
|
||||
state->index_j = 0;
|
||||
}
|
||||
|
||||
/* crypt the data with arcfour */
|
||||
_PUBLIC_ void arcfour_crypt_sbox(struct arcfour_state *state, uint8_t *data,
|
||||
int len)
|
||||
{
|
||||
int ind;
|
||||
|
||||
for (ind = 0; ind < len; ind++) {
|
||||
uint8_t tc;
|
||||
uint8_t t;
|
||||
|
||||
state->index_i++;
|
||||
state->index_j += state->sbox[state->index_i];
|
||||
|
||||
tc = state->sbox[state->index_i];
|
||||
state->sbox[state->index_i] = state->sbox[state->index_j];
|
||||
state->sbox[state->index_j] = tc;
|
||||
|
||||
t = state->sbox[state->index_i] + state->sbox[state->index_j];
|
||||
data[ind] = data[ind] ^ state->sbox[t];
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
arcfour encryption with a blob key
|
||||
*/
|
||||
_PUBLIC_ void arcfour_crypt_blob(uint8_t *data, int len, const DATA_BLOB *key)
|
||||
{
|
||||
struct arcfour_state state;
|
||||
arcfour_init(&state, key);
|
||||
arcfour_crypt_sbox(&state, data, len);
|
||||
}
|
||||
|
||||
/*
|
||||
a variant that assumes a 16 byte key. This should be removed
|
||||
when the last user is gone
|
||||
*/
|
||||
_PUBLIC_ void arcfour_crypt(uint8_t *data, const uint8_t keystr[16], int len)
|
||||
{
|
||||
uint8_t keycopy[16];
|
||||
DATA_BLOB key = { .data = keycopy, .length = sizeof(keycopy) };
|
||||
|
||||
memcpy(keycopy, keystr, sizeof(keycopy));
|
||||
|
||||
arcfour_crypt_blob(data, len, &key);
|
||||
}
|
||||
|
||||
|
@ -1,17 +0,0 @@
|
||||
#ifndef ARCFOUR_HEADER_H
|
||||
#define ARCFOUR_HEADER_H
|
||||
|
||||
#include "../lib/util/data_blob.h"
|
||||
|
||||
struct arcfour_state {
|
||||
uint8_t sbox[256];
|
||||
uint8_t index_i;
|
||||
uint8_t index_j;
|
||||
};
|
||||
|
||||
void arcfour_init(struct arcfour_state *state, const DATA_BLOB *key);
|
||||
void arcfour_crypt_sbox(struct arcfour_state *state, uint8_t *data, int len);
|
||||
void arcfour_crypt_blob(uint8_t *data, int len, const DATA_BLOB *key);
|
||||
void arcfour_crypt(uint8_t *data, const uint8_t keystr[16], int len);
|
||||
|
||||
#endif /* ARCFOUR_HEADER_H */
|
@ -12,14 +12,6 @@ bld.SAMBA_SUBSYSTEM('GNUTLS_HELPERS',
|
||||
''',
|
||||
deps='gnutls samba-errors');
|
||||
|
||||
# We have a GnuTLS DCEPRC backupkey implementation for the server and the test.
|
||||
# However this is only working with GnuTLS >= 3.4.7. So we need to keep this
|
||||
# around till we can require at least GnuTLS in a newer version.
|
||||
bld.SAMBA_SUBSYSTEM('LIBCRYPTO_RC4',
|
||||
source='arcfour.c',
|
||||
deps='talloc',
|
||||
enabled=not bld.CONFIG_SET('HAVE_GNUTLS_3_4_7'))
|
||||
|
||||
bld.SAMBA_SUBSYSTEM('LIBCRYPTO_AES_CCM',
|
||||
source='aes_ccm_128.c',
|
||||
deps='talloc')
|
||||
@ -42,7 +34,6 @@ bld.SAMBA_SUBSYSTEM('LIBCRYPTO',
|
||||
''',
|
||||
deps='''
|
||||
talloc
|
||||
LIBCRYPTO_RC4
|
||||
LIBCRYPTO_AES
|
||||
LIBCRYPTO_AES_CCM
|
||||
LIBCRYPTO_AES_GCM
|
||||
|
Loading…
x
Reference in New Issue
Block a user