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/**
* WinPR: Windows Portable Runtime
* NTLM Utils
*
* Copyright 2012 Marc-Andre Moreau <marcandre.moreau@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <winpr/config.h>
#include <winpr/ntlm.h>
#include <winpr/assert.h>
#include <winpr/crt.h>
#include <winpr/crypto.h>
/**
* Define NTOWFv1(Password, User, Domain) as
* MD4(UNICODE(Password))
* EndDefine
*/
BOOL NTOWFv1W(LPWSTR Password, UINT32 PasswordLength, BYTE* NtHash)
{
if (!Password || !NtHash)
return FALSE;
if (!winpr_Digest(WINPR_MD_MD4, (BYTE*)Password, (size_t)PasswordLength, NtHash,
WINPR_MD4_DIGEST_LENGTH))
return FALSE;
return TRUE;
}
BOOL NTOWFv1A(LPSTR Password, UINT32 PasswordLength, BYTE* NtHash)
{
LPWSTR PasswordW = NULL;
BOOL result = FALSE;
size_t pwdCharLength = 0;
if (!NtHash)
return FALSE;
PasswordW = ConvertUtf8NToWCharAlloc(Password, PasswordLength, &pwdCharLength);
if (!PasswordW)
return FALSE;
if (!NTOWFv1W(PasswordW, (UINT32)pwdCharLength * sizeof(WCHAR), NtHash))
goto out_fail;
result = TRUE;
out_fail:
free(PasswordW);
return result;
}
/**
* Define NTOWFv2(Password, User, Domain) as
* HMAC_MD5(MD4(UNICODE(Password)),
* UNICODE(ConcatenationOf(UpperCase(User), Domain)))
* EndDefine
*/
BOOL NTOWFv2W(LPWSTR Password, UINT32 PasswordLength, LPWSTR User, UINT32 UserLength, LPWSTR Domain,
UINT32 DomainLength, BYTE* NtHash)
{
BYTE NtHashV1[WINPR_MD5_DIGEST_LENGTH];
if ((!User) || (!Password) || (!NtHash))
return FALSE;
if (!NTOWFv1W(Password, PasswordLength, NtHashV1))
return FALSE;
return NTOWFv2FromHashW(NtHashV1, User, UserLength, Domain, DomainLength, NtHash);
}
BOOL NTOWFv2A(LPSTR Password, UINT32 PasswordLength, LPSTR User, UINT32 UserLength, LPSTR Domain,
UINT32 DomainLength, BYTE* NtHash)
{
LPWSTR UserW = NULL;
LPWSTR DomainW = NULL;
LPWSTR PasswordW = NULL;
BOOL result = FALSE;
size_t userCharLength = 0;
size_t domainCharLength = 0;
size_t pwdCharLength = 0;
if (!NtHash)
return FALSE;
UserW = ConvertUtf8NToWCharAlloc(User, UserLength, &userCharLength);
DomainW = ConvertUtf8NToWCharAlloc(Domain, DomainLength, &domainCharLength);
PasswordW = ConvertUtf8NToWCharAlloc(Password, PasswordLength, &pwdCharLength);
if (!UserW || !DomainW || !PasswordW)
goto out_fail;
if (!NTOWFv2W(PasswordW, (UINT32)pwdCharLength * sizeof(WCHAR), UserW,
(UINT32)userCharLength * sizeof(WCHAR), DomainW,
(UINT32)domainCharLength * sizeof(WCHAR), NtHash))
goto out_fail;
result = TRUE;
out_fail:
free(UserW);
free(DomainW);
free(PasswordW);
return result;
}
BOOL NTOWFv2FromHashW(BYTE* NtHashV1, LPWSTR User, UINT32 UserLength, LPWSTR Domain,
UINT32 DomainLength, BYTE* NtHash)
{
BYTE* buffer = NULL;
BYTE result = FALSE;
if (!User || !NtHash)
return FALSE;
if (!(buffer = (BYTE*)malloc(UserLength + DomainLength)))
return FALSE;
/* Concatenate(UpperCase(User), Domain) */
CopyMemory(buffer, User, UserLength);
CharUpperBuffW((LPWSTR)buffer, UserLength / 2);
if (DomainLength > 0)
{
CopyMemory(&buffer[UserLength], Domain, DomainLength);
}
/* Compute the HMAC-MD5 hash of the above value using the NTLMv1 hash as the key, the result is
* the NTLMv2 hash */
if (!winpr_HMAC(WINPR_MD_MD5, NtHashV1, 16, buffer, UserLength + DomainLength, NtHash,
WINPR_MD5_DIGEST_LENGTH))
goto out_fail;
result = TRUE;
out_fail:
free(buffer);
return result;
}
BOOL NTOWFv2FromHashA(BYTE* NtHashV1, LPSTR User, UINT32 UserLength, LPSTR Domain,
UINT32 DomainLength, BYTE* NtHash)
{
LPWSTR UserW = NULL;
LPWSTR DomainW = NULL;
BOOL result = FALSE;
size_t userCharLength = 0;
size_t domainCharLength = 0;
if (!NtHash)
return FALSE;
UserW = ConvertUtf8NToWCharAlloc(User, UserLength, &userCharLength);
DomainW = ConvertUtf8NToWCharAlloc(Domain, DomainLength, &domainCharLength);
if (!UserW || !DomainW)
goto out_fail;
if (!NTOWFv2FromHashW(NtHashV1, UserW, (UINT32)userCharLength * sizeof(WCHAR), DomainW,
(UINT32)domainCharLength * sizeof(WCHAR), NtHash))
goto out_fail;
result = TRUE;
out_fail:
free(UserW);
free(DomainW);
return result;
}
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