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Diffstat (limited to 'libntlm-0.21/smbencrypt.c')
-rw-r--r-- | libntlm-0.21/smbencrypt.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/libntlm-0.21/smbencrypt.c b/libntlm-0.21/smbencrypt.c deleted file mode 100644 index e58f0d41..00000000 --- a/libntlm-0.21/smbencrypt.c +++ /dev/null @@ -1,323 +0,0 @@ -/* - Unix SMB/Netbios implementation. - Version 1.9. - SMB parameters and setup - Copyright (C) Andrew Tridgell 1992-1998 - Modified by Jeremy Allison 1995. - - 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 2 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, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -#define DEBUG(a,b) ; - -extern int DEBUGLEVEL; - -#include <unistd.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include "smbbyteorder.h" -#include "smbdes.h" -#include "smbmd4.h" - -typedef unsigned char uchar; -typedef signed short int16; -typedef unsigned short uint16; -typedef int BOOL; -#define False 0 -#define True 1 - -/**************************************************************************** - Like strncpy but always null terminates. Make sure there is room! - The variable n should always be one less than the available size. -****************************************************************************/ - -char *StrnCpy(char *dest,const char *src, size_t n) -{ - char *d = dest; - if (!dest) return(NULL); - if (!src) { - *dest = 0; - return(dest); - } - while (n-- && (*d++ = *src++)) ; - *d = 0; - return(dest); -} - -size_t skip_multibyte_char(char c) -{ -return 0; -} - - -/******************************************************************* -safe string copy into a known length string. maxlength does not -include the terminating zero. -********************************************************************/ - -char *safe_strcpy(char *dest,const char *src, size_t maxlength) -{ - size_t len; - - if (!dest) { - DEBUG(0,("ERROR: NULL dest in safe_strcpy\n")); - return NULL; - } - - if (!src) { - *dest = 0; - return dest; - } - - len = strlen(src); - - if (len > maxlength) { - DEBUG(0,("ERROR: string overflow by %d in safe_strcpy [%.50s]\n", - (int)(len-maxlength), src)); - len = maxlength; - } - - memcpy(dest, src, len); - dest[len] = 0; - return dest; -} - - -void strupper(char *s) -{ -while (*s) - { - { - size_t skip = skip_multibyte_char( *s ); - if( skip != 0 ) - s += skip; - else - { - if (islower(*s)) - *s = toupper(*s); - s++; - } - } - } -} - -extern void SMBOWFencrypt(uchar passwd[16], uchar *c8, uchar p24[24]); - -/* - This implements the X/Open SMB password encryption - It takes a password, a 8 byte "crypt key" and puts 24 bytes of - encrypted password into p24 - */ - -void SMBencrypt(uchar *passwd, uchar *c8, uchar *p24) - { - uchar p14[15], p21[21]; - - memset(p21,'\0',21); - memset(p14,'\0',14); - StrnCpy((char *)p14,(char *)passwd,14); - - strupper((char *)p14); - E_P16(p14, p21); - - SMBOWFencrypt(p21, c8, p24); - -#ifdef DEBUG_PASSWORD - DEBUG(100,("SMBencrypt: lm#, challenge, response\n")); - dump_data(100, (char *)p21, 16); - dump_data(100, (char *)c8, 8); - dump_data(100, (char *)p24, 24); -#endif - } - -/* Routines for Windows NT MD4 Hash functions. */ -static int _my_wcslen(int16 *str) -{ - int len = 0; - while(*str++ != 0) - len++; - return len; -} - -/* - * Convert a string into an NT UNICODE string. - * Note that regardless of processor type - * this must be in intel (little-endian) - * format. - */ - -static int _my_mbstowcs(int16 *dst, uchar *src, int len) -{ - int i; - int16 val; - - for(i = 0; i < len; i++) { - val = *src; - SSVAL(dst,0,val); - dst++; - src++; - if(val == 0) - break; - } - return i; -} - -/* - * Creates the MD4 Hash of the users password in NT UNICODE. - */ - -void E_md4hash(uchar *passwd, uchar *p16) -{ - int len; - int16 wpwd[129]; - - /* Password cannot be longer than 128 characters */ - len = strlen((char *)passwd); - if(len > 128) - len = 128; - /* Password must be converted to NT unicode */ - _my_mbstowcs(wpwd, passwd, len); - wpwd[len] = 0; /* Ensure string is null terminated */ - /* Calculate length in bytes */ - len = _my_wcslen(wpwd) * sizeof(int16); - - mdfour(p16, (unsigned char *)wpwd, len); -} - -/* Does both the NT and LM owfs of a user's password */ -void nt_lm_owf_gen(char *pwd, uchar nt_p16[16], uchar p16[16]) -{ - char passwd[130]; - - memset(passwd,'\0',130); - safe_strcpy( passwd, pwd, sizeof(passwd)-1); - - /* Calculate the MD4 hash (NT compatible) of the password */ - memset(nt_p16, '\0', 16); - E_md4hash((uchar *)passwd, nt_p16); - -#ifdef DEBUG_PASSWORD - DEBUG(100,("nt_lm_owf_gen: pwd, nt#\n")); - dump_data(120, passwd, strlen(passwd)); - dump_data(100, (char *)nt_p16, 16); -#endif - - /* Mangle the passwords into Lanman format */ - passwd[14] = '\0'; - strupper(passwd); - - /* Calculate the SMB (lanman) hash functions of the password */ - - memset(p16, '\0', 16); - E_P16((uchar *) passwd, (uchar *)p16); - -#ifdef DEBUG_PASSWORD - DEBUG(100,("nt_lm_owf_gen: pwd, lm#\n")); - dump_data(120, passwd, strlen(passwd)); - dump_data(100, (char *)p16, 16); -#endif - /* clear out local copy of user's password (just being paranoid). */ - memset(passwd, '\0', sizeof(passwd)); -} - -/* Does the des encryption from the NT or LM MD4 hash. */ -void SMBOWFencrypt(uchar passwd[16], uchar *c8, uchar p24[24]) -{ - uchar p21[21]; - - memset(p21,'\0',21); - - memcpy(p21, passwd, 16); - E_P24(p21, c8, p24); -} - -/* Does the des encryption from the FIRST 8 BYTES of the NT or LM MD4 hash. */ -void NTLMSSPOWFencrypt(uchar passwd[8], uchar *ntlmchalresp, uchar p24[24]) -{ - uchar p21[21]; - - memset(p21,'\0',21); - memcpy(p21, passwd, 8); - memset(p21 + 8, 0xbd, 8); - - E_P24(p21, ntlmchalresp, p24); -#ifdef DEBUG_PASSWORD - DEBUG(100,("NTLMSSPOWFencrypt: p21, c8, p24\n")); - dump_data(100, (char *)p21, 21); - dump_data(100, (char *)ntlmchalresp, 8); - dump_data(100, (char *)p24, 24); -#endif -} - - -/* Does the NT MD4 hash then des encryption. */ - -void SMBNTencrypt(uchar *passwd, uchar *c8, uchar *p24) -{ - uchar p21[21]; - - memset(p21,'\0',21); - - E_md4hash(passwd, p21); - SMBOWFencrypt(p21, c8, p24); - -#ifdef DEBUG_PASSWORD - DEBUG(100,("SMBNTencrypt: nt#, challenge, response\n")); - dump_data(100, (char *)p21, 16); - dump_data(100, (char *)c8, 8); - dump_data(100, (char *)p24, 24); -#endif -} - -#if 0 - -BOOL make_oem_passwd_hash(char data[516], const char *passwd, uchar old_pw_hash[16], BOOL unicode) -{ - int new_pw_len = strlen(passwd) * (unicode ? 2 : 1); - - if (new_pw_len > 512) - { - DEBUG(0,("make_oem_passwd_hash: new password is too long.\n")); - return False; - } - - /* - * Now setup the data area. - * We need to generate a random fill - * for this area to make it harder to - * decrypt. JRA. - */ - generate_random_buffer((unsigned char *)data, 516, False); - if (unicode) - { - struni2( &data[512 - new_pw_len], passwd); - } - else - { - fstrcpy( &data[512 - new_pw_len], passwd); - } - SIVAL(data, 512, new_pw_len); - -#ifdef DEBUG_PASSWORD - DEBUG(100,("make_oem_passwd_hash\n")); - dump_data(100, data, 516); -#endif - SamOEMhash( (unsigned char *)data, (unsigned char *)old_pw_hash, True); - - return True; -} - -#endif |