mirror of https://github.com/lianthony/NT4.0
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
212 lines
3.9 KiB
212 lines
3.9 KiB
/*++
|
|
|
|
Copyright (c) 1989 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
owf.c
|
|
|
|
Abstract:
|
|
|
|
Implentation of the one-way-functions used to implement password hashing.
|
|
|
|
RtlCalculateLmOwfPassword
|
|
RtlCalculateNtOwfPassword
|
|
|
|
|
|
Author:
|
|
|
|
David Chalmers (Davidc) 10-21-91
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#include <nt.h>
|
|
#include <ntrtl.h>
|
|
#include <crypt.h>
|
|
#include <engine.h>
|
|
|
|
|
|
NTSTATUS
|
|
RtlCalculateLmOwfPassword(
|
|
IN PLM_PASSWORD LmPassword,
|
|
OUT PLM_OWF_PASSWORD LmOwfPassword
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Takes the passed LmPassword and performs a one-way-function on it.
|
|
The current implementation does this by using the password as a key
|
|
to encrypt a known block of text.
|
|
|
|
Arguments:
|
|
|
|
LmPassword - The password to perform the one-way-function on.
|
|
|
|
LmOwfPassword - The hashed password is returned here
|
|
|
|
Return Values:
|
|
|
|
STATUS_SUCCESS - The function was completed successfully. The hashed
|
|
password is in LmOwfPassword.
|
|
|
|
STATUS_UNSUCCESSFUL - Something failed. The LmOwfPassword is undefined.
|
|
--*/
|
|
|
|
{
|
|
NTSTATUS Status;
|
|
BLOCK_KEY Key[2];
|
|
PCHAR pKey;
|
|
|
|
// Copy the password into our key buffer and zero pad to fill the 2 keys
|
|
|
|
pKey = (PCHAR)(&Key[0]);
|
|
|
|
while (*LmPassword && (pKey < (PCHAR)(&Key[2]))) {
|
|
*pKey++ = *LmPassword++;
|
|
}
|
|
|
|
while (pKey < (PCHAR)(&Key[2])) {
|
|
*pKey++ = 0;
|
|
}
|
|
|
|
|
|
// Use the keys to encrypt the standard text
|
|
|
|
Status = RtlEncryptStdBlock(&Key[0], &(LmOwfPassword->data[0]));
|
|
|
|
if (!NT_SUCCESS(Status)) {
|
|
return(Status);
|
|
}
|
|
|
|
Status = RtlEncryptStdBlock(&Key[1], &(LmOwfPassword->data[1]));
|
|
|
|
//
|
|
// clear our copy of the cleartext password
|
|
//
|
|
|
|
pKey = (PCHAR)(&Key[0]);
|
|
|
|
while (pKey < (PCHAR)(&Key[2])) {
|
|
*pKey++ = 0;
|
|
}
|
|
|
|
return(Status);
|
|
}
|
|
|
|
|
|
|
|
|
|
NTSTATUS
|
|
RtlCalculateNtOwfPassword(
|
|
IN PNT_PASSWORD NtPassword,
|
|
OUT PNT_OWF_PASSWORD NtOwfPassword
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Takes the passed NtPassword and performs a one-way-function on it.
|
|
Uses the RSA MD4 function
|
|
|
|
Arguments:
|
|
|
|
NtPassword - The password to perform the one-way-function on.
|
|
|
|
NtOwfPassword - The hashed password is returned here
|
|
|
|
Return Values:
|
|
|
|
STATUS_SUCCESS - The function was completed successfully. The hashed
|
|
password is in NtOwfPassword.
|
|
--*/
|
|
|
|
{
|
|
MD4_CTX MD4_Context;
|
|
|
|
|
|
MD4Init(&MD4_Context);
|
|
|
|
MD4Update(&MD4_Context, (PCHAR)NtPassword->Buffer, NtPassword->Length);
|
|
|
|
MD4Final(&MD4_Context);
|
|
|
|
|
|
// Copy the digest into our return data area
|
|
|
|
ASSERT(sizeof(*NtOwfPassword) == sizeof(MD4_Context.digest));
|
|
|
|
RtlMoveMemory((PVOID)NtOwfPassword, (PVOID)MD4_Context.digest,
|
|
sizeof(*NtOwfPassword));
|
|
|
|
return(STATUS_SUCCESS);
|
|
}
|
|
|
|
|
|
|
|
BOOLEAN
|
|
RtlEqualLmOwfPassword(
|
|
IN PLM_OWF_PASSWORD LmOwfPassword1,
|
|
IN PLM_OWF_PASSWORD LmOwfPassword2
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Compares two Lanman One-way-function-passwords
|
|
|
|
Arguments:
|
|
|
|
LmOwfPassword1/2 - The one-way-functions to compare
|
|
|
|
Return Values:
|
|
|
|
TRUE if the one-way-functions match, otherwise FALSE
|
|
|
|
--*/
|
|
|
|
{
|
|
return((BOOLEAN)(RtlCompareMemory(LmOwfPassword1,
|
|
LmOwfPassword2,
|
|
LM_OWF_PASSWORD_LENGTH)
|
|
|
|
== LM_OWF_PASSWORD_LENGTH));
|
|
}
|
|
|
|
|
|
|
|
BOOLEAN
|
|
RtlEqualNtOwfPassword(
|
|
IN PNT_OWF_PASSWORD NtOwfPassword1,
|
|
IN PNT_OWF_PASSWORD NtOwfPassword2
|
|
)
|
|
|
|
/*++
|
|
|
|
Routine Description:
|
|
|
|
Compares two NT One-way-function-passwords
|
|
|
|
Arguments:
|
|
|
|
NtOwfPassword1/2 - The one-way-functions to compare
|
|
|
|
Return Values:
|
|
|
|
TRUE if the one-way-functions match, otherwise FALSE
|
|
|
|
--*/
|
|
|
|
{
|
|
return((BOOLEAN)(RtlCompareMemory(NtOwfPassword1,
|
|
NtOwfPassword2,
|
|
NT_OWF_PASSWORD_LENGTH)
|
|
|
|
== NT_OWF_PASSWORD_LENGTH));
|
|
}
|
|
|