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NTLM: move NTLM core specifics into curl_ntlm_core.[ch]

This commit is contained in:
Yang Tse 2011-08-28 01:19:08 +02:00
parent 260ee6b7bf
commit 135f694058
7 changed files with 484 additions and 339 deletions

View File

@ -22,7 +22,8 @@ CSOURCES = file.c timeval.c base64.c hostip.c progress.c formdata.c \
pingpong.c rtsp.c curl_threads.c warnless.c hmac.c polarssl.c \
curl_rtmp.c openldap.c curl_gethostname.c gopher.c axtls.c \
idn_win32.c http_negotiate_sspi.c cyassl.c http_proxy.c non-ascii.c \
asyn-ares.c asyn-thread.c curl_gssapi.c curl_ntlm.c curl_ntlm_wb.c
asyn-ares.c asyn-thread.c curl_gssapi.c curl_ntlm.c curl_ntlm_wb.c \
curl_ntlm_core.c
HHEADERS = arpa_telnet.h netrc.h file.h timeval.h qssl.h hostip.h \
progress.h formdata.h cookie.h http.h sendf.h ftp.h url.h dict.h \
@ -38,4 +39,4 @@ HHEADERS = arpa_telnet.h netrc.h file.h timeval.h qssl.h hostip.h \
curl_memrchr.h imap.h pop3.h smtp.h pingpong.h rtsp.h curl_threads.h \
warnless.h curl_hmac.h polarssl.h curl_rtmp.h curl_gethostname.h \
gopher.h axtls.h cyassl.h http_proxy.h non-ascii.h asyn.h curl_ntlm.h \
curl_gssapi.h curl_ntlm_wb.h
curl_gssapi.h curl_ntlm_wb.h curl_ntlm_core.h

View File

@ -507,6 +507,7 @@ X_OBJS= \
$(DIROBJ)\curl_gethostname.obj \
$(DIROBJ)\curl_memrchr.obj \
$(DIROBJ)\curl_ntlm.obj \
$(DIROBJ)\curl_ntlm_core.obj \
$(DIROBJ)\curl_ntlm_wb.obj \
$(DIROBJ)\curl_rand.obj \
$(DIROBJ)\curl_rtmp.obj \

View File

@ -35,12 +35,6 @@
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_WAIT_H
#include <sys/wait.h>
#endif
#ifdef HAVE_SIGNAL_H
#include <signal.h>
#endif
#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
#include <netdb.h>
@ -49,7 +43,7 @@
#define BUILDING_CURL_NTLM_C
#include "urldata.h"
#include "non-ascii.h" /* for Curl_convert_... prototypes */
#include "non-ascii.h"
#include "sendf.h"
#include "select.h"
#include "rawstr.h"
@ -87,22 +81,6 @@
#error "OPENSSL_VERSION_NUMBER not defined"
#endif
#if OPENSSL_VERSION_NUMBER < 0x00907001L
#define DES_key_schedule des_key_schedule
#define DES_cblock des_cblock
#define DES_set_odd_parity des_set_odd_parity
#define DES_set_key des_set_key
#define DES_ecb_encrypt des_ecb_encrypt
/* This is how things were done in the old days */
#define DESKEY(x) x
#define DESKEYARG(x) x
#else
/* Modern version */
#define DESKEYARG(x) *x
#define DESKEY(x) &x
#endif
#ifdef OPENSSL_NO_MD4
/* This requires MD4, but OpenSSL was compiled without it */
#define USE_NTRESPONSES 0
@ -134,15 +112,6 @@
# error "Can't compile NTLM support without a crypto library."
#endif
/* The last #include file should be: */
#include "memdebug.h"
/* Hostname buffer size */
#define HOSTNAME_MAX 1024
/* "NTLMSSP" signature is always in ASCII regardless of the platform */
#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50"
#ifndef USE_NTRESPONSES
/* Define this to make the type-3 message include the NT response message */
#define USE_NTRESPONSES 1
@ -152,6 +121,17 @@
#define USE_NTLM2SESSION 1
#endif
#include "curl_ntlm_core.h"
/* The last #include file should be: */
#include "memdebug.h"
/* Hostname buffer size */
#define HOSTNAME_MAX 1024
/* "NTLMSSP" signature is always in ASCII regardless of the platform */
#define NTLMSSP_SIGNATURE "\x4e\x54\x4c\x4d\x53\x53\x50"
#define SHORTPAIR(x) ((x) & 0xff), (((x) >> 8) & 0xff)
#define LONGQUARTET(x) ((x) & 0xff), (((x) >> 8) & 0xff), \
(((x) >> 16) & 0xff), (((x) >> 24) & 0xff)
@ -229,6 +209,7 @@ static void ntlm_print_flags(FILE *handle, unsigned long flags)
static void ntlm_print_hex(FILE *handle, const char *buf, size_t len)
{
const char *p = buf;
(void)handle;
fprintf(stderr, "0x");
while(len-- > 0)
fprintf(stderr, "%02.2x", (unsigned int)*p++);
@ -360,293 +341,6 @@ CURLcode Curl_ntlm_decode_type2_message(struct SessionHandle *data,
return CURLE_OK;
}
#ifndef USE_WINDOWS_SSPI
#ifdef USE_SSLEAY
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The
* key schedule ks is also set.
*/
static void setup_des_key(const unsigned char *key_56,
DES_key_schedule DESKEYARG(ks))
{
DES_cblock key;
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
DES_set_odd_parity(&key);
DES_set_key(&key, ks);
}
#else /* defined(USE_SSLEAY) */
/*
* Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS.
*/
static void extend_key_56_to_64(const unsigned char *key_56, char *key)
{
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
}
#if defined(USE_GNUTLS)
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key.
*/
static void setup_des_key(const unsigned char *key_56,
gcry_cipher_hd_t *des)
{
char key[8];
extend_key_56_to_64(key_56, key);
gcry_cipher_setkey(*des, key, 8);
}
#elif defined(USE_NSS)
/*
* Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using
* the expanded key. The caller is responsible for giving 64 bit of valid
* data is IN and (at least) 64 bit large buffer as OUT.
*/
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */
PK11SlotInfo *slot = NULL;
char key[8]; /* expanded 64 bit key */
SECItem key_item;
PK11SymKey *symkey = NULL;
SECItem *param = NULL;
PK11Context *ctx = NULL;
int out_len; /* not used, required by NSS */
bool rv = FALSE;
/* use internal slot for DES encryption (requires NSS to be initialized) */
slot = PK11_GetInternalKeySlot();
if(!slot)
return FALSE;
/* expand the 56 bit key to 64 bit and wrap by NSS */
extend_key_56_to_64(key_56, key);
key_item.data = (unsigned char *)key;
key_item.len = /* hard-wired */ 8;
symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT,
&key_item, NULL);
if(!symkey)
goto fail;
/* create DES encryption context */
param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL);
if(!param)
goto fail;
ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param);
if(!ctx)
goto fail;
/* perform the encryption */
if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8,
(unsigned char *)in, /* inbuflen */ 8)
&& SECSuccess == PK11_Finalize(ctx))
rv = /* all OK */ TRUE;
fail:
/* cleanup */
if(ctx)
PK11_DestroyContext(ctx, PR_TRUE);
if(symkey)
PK11_FreeSymKey(symkey);
if(param)
SECITEM_FreeItem(param, PR_TRUE);
PK11_FreeSlot(slot);
return rv;
}
#endif /* defined(USE_NSS) */
#endif /* defined(USE_SSLEAY) */
/*
* takes a 21 byte array and treats it as 3 56-bit DES keys. The
* 8 byte plaintext is encrypted with each key and the resulting 24
* bytes are stored in the results array.
*/
static void lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results)
{
#ifdef USE_SSLEAY
DES_key_schedule ks;
setup_des_key(keys, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) results,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 8),
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 14, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 16),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys, &des);
gcry_cipher_encrypt(des, results, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 7, &des);
gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 14, &des);
gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS)
encrypt_des(plaintext, results, keys);
encrypt_des(plaintext, results + 8, keys + 7);
encrypt_des(plaintext, results + 16, keys + 14);
#endif
}
/*
* Set up lanmanager hashed password
*/
static void mk_lm_hash(struct SessionHandle *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */)
{
CURLcode res;
unsigned char pw[14];
static const unsigned char magic[] = {
0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */
};
size_t len = CURLMIN(strlen(password), 14);
Curl_strntoupper((char *)pw, password, len);
memset(&pw[len], 0, 14 - len);
/*
* The LanManager hashed password needs to be created using the
* password in the network encoding not the host encoding.
*/
res = Curl_convert_to_network(data, (char *)pw, 14);
if(res)
return;
{
/* Create LanManager hashed password. */
#ifdef USE_SSLEAY
DES_key_schedule ks;
setup_des_key(pw, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)lmbuffer,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(pw + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer + 8),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw, &des);
gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw + 7, &des);
gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS)
encrypt_des(magic, lmbuffer, pw);
encrypt_des(magic, lmbuffer + 8, pw + 7);
#endif
memset(lmbuffer + 16, 0, 21 - 16);
}
}
#if USE_NTRESPONSES
static void ascii_to_unicode_le(unsigned char *dest, const char *src,
size_t srclen)
{
size_t i;
for(i = 0; i < srclen; i++) {
dest[2 * i] = (unsigned char)src[i];
dest[2 * i + 1] = '\0';
}
}
/*
* Set up nt hashed passwords
*/
static CURLcode mk_nt_hash(struct SessionHandle *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */)
{
size_t len = strlen(password);
unsigned char *pw = malloc(len * 2);
CURLcode result;
if(!pw)
return CURLE_OUT_OF_MEMORY;
ascii_to_unicode_le(pw, password, len);
/*
* The NT hashed password needs to be created using the password in the
* network encoding not the host encoding.
*/
result = Curl_convert_to_network(data, (char *)pw, len * 2);
if(result)
return result;
{
/* Create NT hashed password. */
#ifdef USE_SSLEAY
MD4_CTX MD4pw;
MD4_Init(&MD4pw);
MD4_Update(&MD4pw, pw, 2 * len);
MD4_Final(ntbuffer, &MD4pw);
#elif defined(USE_GNUTLS)
gcry_md_hd_t MD4pw;
gcry_md_open(&MD4pw, GCRY_MD_MD4, 0);
gcry_md_write(MD4pw, pw, 2 * len);
memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH);
gcry_md_close(MD4pw);
#elif defined(USE_NSS)
Curl_md4it(ntbuffer, pw, 2 * len);
#endif
memset(ntbuffer + 16, 0, 21 - 16);
}
free(pw);
return CURLE_OK;
}
#endif
#endif
#ifdef USE_WINDOWS_SSPI
void Curl_ntlm_sspi_cleanup(struct ntlmdata *ntlm)
{
@ -1096,11 +790,12 @@ CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,
PK11_DestroyContext(MD5pw, PR_TRUE);
#endif
/* We shall only use the first 8 bytes of md5sum,
but the des code in lm_resp only encrypt the first 8 bytes */
if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY)
/* We shall only use the first 8 bytes of md5sum, but the des
code in Curl_ntlm_core_lm_resp only encrypt the first 8 bytes */
if(CURLE_OUT_OF_MEMORY ==
Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer))
return CURLE_OUT_OF_MEMORY;
lm_resp(ntbuffer, md5sum, ntresp);
Curl_ntlm_core_lm_resp(ntbuffer, md5sum, ntresp);
/* End of NTLM2 Session code */
}
@ -1114,15 +809,16 @@ CURLcode Curl_ntlm_create_type3_message(struct SessionHandle *data,
unsigned char lmbuffer[0x18];
#if USE_NTRESPONSES
if(mk_nt_hash(data, passwdp, ntbuffer) == CURLE_OUT_OF_MEMORY)
if(CURLE_OUT_OF_MEMORY ==
Curl_ntlm_core_mk_nt_hash(data, passwdp, ntbuffer))
return CURLE_OUT_OF_MEMORY;
lm_resp(ntbuffer, &ntlm->nonce[0], ntresp);
Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], ntresp);
#endif
mk_lm_hash(data, passwdp, lmbuffer);
lm_resp(lmbuffer, &ntlm->nonce[0], lmresp);
Curl_ntlm_core_mk_lm_hash(data, passwdp, lmbuffer);
Curl_ntlm_core_lm_resp(lmbuffer, &ntlm->nonce[0], lmresp);
/* A safer but less compatible alternative is:
* lm_resp(ntbuffer, &ntlm->nonce[0], lmresp);
* Curl_ntlm_core_lm_resp(ntbuffer, &ntlm->nonce[0], lmresp);
* See http://davenport.sourceforge.net/ntlm.html#ntlmVersion2 */
}

412
lib/curl_ntlm_core.c Normal file
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@ -0,0 +1,412 @@
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#include "setup.h"
/* NTLM details:
http://davenport.sourceforge.net/ntlm.html
http://www.innovation.ch/java/ntlm.html
*/
#ifdef USE_NTLM
#include "non-ascii.h"
#include "rawstr.h"
#include "curl_memory.h"
#define _MPRINTF_REPLACE /* use our functions only */
#include <curl/mprintf.h>
#ifdef USE_SSLEAY
#include "ssluse.h"
# ifdef USE_OPENSSL
# include <openssl/des.h>
# ifndef OPENSSL_NO_MD4
# include <openssl/md4.h>
# endif
# include <openssl/md5.h>
# include <openssl/ssl.h>
# include <openssl/rand.h>
# else
# include <des.h>
# ifndef OPENSSL_NO_MD4
# include <md4.h>
# endif
# include <md5.h>
# include <ssl.h>
# include <rand.h>
# endif
#ifndef OPENSSL_VERSION_NUMBER
#error "OPENSSL_VERSION_NUMBER not defined"
#endif
#if OPENSSL_VERSION_NUMBER < 0x00907001L
#define DES_key_schedule des_key_schedule
#define DES_cblock des_cblock
#define DES_set_odd_parity des_set_odd_parity
#define DES_set_key des_set_key
#define DES_ecb_encrypt des_ecb_encrypt
/* This is how things were done in the old days */
#define DESKEY(x) x
#define DESKEYARG(x) x
#else
/* Modern version */
#define DESKEYARG(x) *x
#define DESKEY(x) &x
#endif
#ifdef OPENSSL_NO_MD4
/* This requires MD4, but OpenSSL was compiled without it */
#define USE_NTRESPONSES 0
#define USE_NTLM2SESSION 0
#endif
#elif defined(USE_GNUTLS)
#include "gtls.h"
#include <gcrypt.h>
#define MD5_DIGEST_LENGTH 16
#define MD4_DIGEST_LENGTH 16
#elif defined(USE_NSS)
#include "curl_md4.h"
#include "nssg.h"
#include <nss.h>
#include <pk11pub.h>
#include <hasht.h>
#define MD5_DIGEST_LENGTH MD5_LENGTH
#elif defined(USE_WINDOWS_SSPI)
#include "curl_sspi.h"
#else
# error "Can't compile NTLM support without a crypto library."
#endif
#ifndef USE_NTRESPONSES
/* Define this to make the type-3 message include the NT response message */
#define USE_NTRESPONSES 1
/* Define this to make the type-3 message include the NTLM2Session response
message, requires USE_NTRESPONSES. */
#define USE_NTLM2SESSION 1
#endif
#include "curl_ntlm_core.h"
/* The last #include file should be: */
#include "memdebug.h"
#ifndef USE_WINDOWS_SSPI
#ifdef USE_SSLEAY
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The
* key schedule ks is also set.
*/
static void setup_des_key(const unsigned char *key_56,
DES_key_schedule DESKEYARG(ks))
{
DES_cblock key;
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
DES_set_odd_parity(&key);
DES_set_key(&key, ks);
}
#else /* defined(USE_SSLEAY) */
/*
* Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS.
*/
static void extend_key_56_to_64(const unsigned char *key_56, char *key)
{
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
}
#if defined(USE_GNUTLS)
/*
* Turns a 56 bit key into the 64 bit, odd parity key and sets the key.
*/
static void setup_des_key(const unsigned char *key_56,
gcry_cipher_hd_t *des)
{
char key[8];
extend_key_56_to_64(key_56, key);
gcry_cipher_setkey(*des, key, 8);
}
#elif defined(USE_NSS)
/*
* Expands a 56 bit key KEY_56 to 64 bit and encrypts 64 bit of data, using
* the expanded key. The caller is responsible for giving 64 bit of valid
* data is IN and (at least) 64 bit large buffer as OUT.
*/
static bool encrypt_des(const unsigned char *in, unsigned char *out,
const unsigned char *key_56)
{
const CK_MECHANISM_TYPE mech = CKM_DES_ECB; /* DES cipher in ECB mode */
PK11SlotInfo *slot = NULL;
char key[8]; /* expanded 64 bit key */
SECItem key_item;
PK11SymKey *symkey = NULL;
SECItem *param = NULL;
PK11Context *ctx = NULL;
int out_len; /* not used, required by NSS */
bool rv = FALSE;
/* use internal slot for DES encryption (requires NSS to be initialized) */
slot = PK11_GetInternalKeySlot();
if(!slot)
return FALSE;
/* expand the 56 bit key to 64 bit and wrap by NSS */
extend_key_56_to_64(key_56, key);
key_item.data = (unsigned char *)key;
key_item.len = /* hard-wired */ 8;
symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT,
&key_item, NULL);
if(!symkey)
goto fail;
/* create DES encryption context */
param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL);
if(!param)
goto fail;
ctx = PK11_CreateContextBySymKey(mech, CKA_ENCRYPT, symkey, param);
if(!ctx)
goto fail;
/* perform the encryption */
if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8,
(unsigned char *)in, /* inbuflen */ 8)
&& SECSuccess == PK11_Finalize(ctx))
rv = /* all OK */ TRUE;
fail:
/* cleanup */
if(ctx)
PK11_DestroyContext(ctx, PR_TRUE);
if(symkey)
PK11_FreeSymKey(symkey);
if(param)
SECITEM_FreeItem(param, PR_TRUE);
PK11_FreeSlot(slot);
return rv;
}
#endif /* defined(USE_NSS) */
#endif /* defined(USE_SSLEAY) */
/*
* takes a 21 byte array and treats it as 3 56-bit DES keys. The
* 8 byte plaintext is encrypted with each key and the resulting 24
* bytes are stored in the results array.
*/
void Curl_ntlm_core_lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results)
{
#ifdef USE_SSLEAY
DES_key_schedule ks;
setup_des_key(keys, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) results,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 8),
DESKEY(ks), DES_ENCRYPT);
setup_des_key(keys + 14, DESKEY(ks));
DES_ecb_encrypt((DES_cblock*) plaintext, (DES_cblock*) (results + 16),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys, &des);
gcry_cipher_encrypt(des, results, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 7, &des);
gcry_cipher_encrypt(des, results + 8, 8, plaintext, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(keys + 14, &des);
gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS)
encrypt_des(plaintext, results, keys);
encrypt_des(plaintext, results + 8, keys + 7);
encrypt_des(plaintext, results + 16, keys + 14);
#endif
}
/*
* Set up lanmanager hashed password
*/
void Curl_ntlm_core_mk_lm_hash(struct SessionHandle *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */)
{
CURLcode res;
unsigned char pw[14];
static const unsigned char magic[] = {
0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */
};
size_t len = CURLMIN(strlen(password), 14);
Curl_strntoupper((char *)pw, password, len);
memset(&pw[len], 0, 14 - len);
/*
* The LanManager hashed password needs to be created using the
* password in the network encoding not the host encoding.
*/
res = Curl_convert_to_network(data, (char *)pw, 14);
if(res)
return;
{
/* Create LanManager hashed password. */
#ifdef USE_SSLEAY
DES_key_schedule ks;
setup_des_key(pw, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)lmbuffer,
DESKEY(ks), DES_ENCRYPT);
setup_des_key(pw + 7, DESKEY(ks));
DES_ecb_encrypt((DES_cblock *)magic, (DES_cblock *)(lmbuffer + 8),
DESKEY(ks), DES_ENCRYPT);
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t des;
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw, &des);
gcry_cipher_encrypt(des, lmbuffer, 8, magic, 8);
gcry_cipher_close(des);
gcry_cipher_open(&des, GCRY_CIPHER_DES, GCRY_CIPHER_MODE_ECB, 0);
setup_des_key(pw + 7, &des);
gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8);
gcry_cipher_close(des);
#elif defined(USE_NSS)
encrypt_des(magic, lmbuffer, pw);
encrypt_des(magic, lmbuffer + 8, pw + 7);
#endif
memset(lmbuffer + 16, 0, 21 - 16);
}
}
#if USE_NTRESPONSES
static void ascii_to_unicode_le(unsigned char *dest, const char *src,
size_t srclen)
{
size_t i;
for(i = 0; i < srclen; i++) {
dest[2 * i] = (unsigned char)src[i];
dest[2 * i + 1] = '\0';
}
}
/*
* Set up nt hashed passwords
*/
CURLcode Curl_ntlm_core_mk_nt_hash(struct SessionHandle *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */)
{
size_t len = strlen(password);
unsigned char *pw = malloc(len * 2);
CURLcode result;
if(!pw)
return CURLE_OUT_OF_MEMORY;
ascii_to_unicode_le(pw, password, len);
/*
* The NT hashed password needs to be created using the password in the
* network encoding not the host encoding.
*/
result = Curl_convert_to_network(data, (char *)pw, len * 2);
if(result)
return result;
{
/* Create NT hashed password. */
#ifdef USE_SSLEAY
MD4_CTX MD4pw;
MD4_Init(&MD4pw);
MD4_Update(&MD4pw, pw, 2 * len);
MD4_Final(ntbuffer, &MD4pw);
#elif defined(USE_GNUTLS)
gcry_md_hd_t MD4pw;
gcry_md_open(&MD4pw, GCRY_MD_MD4, 0);
gcry_md_write(MD4pw, pw, 2 * len);
memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH);
gcry_md_close(MD4pw);
#elif defined(USE_NSS)
Curl_md4it(ntbuffer, pw, 2 * len);
#endif
memset(ntbuffer + 16, 0, 21 - 16);
}
free(pw);
return CURLE_OK;
}
#endif /* USE_NTRESPONSES */
#endif /* !USE_WINDOWS_SSPI */
#endif /* USE_NTLM */

43
lib/curl_ntlm_core.h Normal file
View File

@ -0,0 +1,43 @@
#ifndef HEADER_CURL_NTLM_CORE_H
#define HEADER_CURL_NTLM_CORE_H
/***************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
***************************************************************************/
#ifdef USE_NTLM
void Curl_ntlm_core_lm_resp(const unsigned char *keys,
const unsigned char *plaintext,
unsigned char *results);
void Curl_ntlm_core_mk_lm_hash(struct SessionHandle *data,
const char *password,
unsigned char *lmbuffer /* 21 bytes */);
#if !defined(USE_WINDOWS_SSPI) && (USE_NTRESPONSES != 0)
CURLcode Curl_ntlm_core_mk_nt_hash(struct SessionHandle *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */);
#endif
#endif /* USE_NTLM */
#endif /* HEADER_CURL_NTLM_CORE_H */

View File

@ -36,20 +36,12 @@
#include <signal.h>
#endif
#if (defined(NETWARE) && !defined(__NOVELL_LIBC__))
#include <netdb.h>
#endif
#include "urldata.h"
#include "non-ascii.h" /* for Curl_convert_... prototypes */
#include "sendf.h"
#include "select.h"
#include "rawstr.h"
#include "curl_base64.h"
#include "curl_ntlm_wb.h"
#include "url.h"
#include "strerror.h"
#include "curl_gethostname.h"
#include "curl_memory.h"
#define _MPRINTF_REPLACE /* use our functions only */

View File

@ -36,7 +36,7 @@ SOURCE \
pingpong.c rtsp.c curl_threads.c warnless.c hmac.c polarssl.c \
curl_rtmp.c openldap.c curl_gethostname.c gopher.c axtls.c \
idn_win32.c http_negotiate_sspi.c cyassl.c http_proxy.c non-ascii.c \
asyn-ares.c asyn-thread.c curl_ntlm.c curl_ntlm_wb.c
asyn-ares.c asyn-thread.c curl_ntlm.c curl_ntlm_wb.c curl_ntlm_core.c
USERINCLUDE ../../../lib ../../../include/curl
#ifdef ENABLE_SSL