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Merged encode_pw_buffer() and nt_owf_genW() functions from TNG branch.

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(This used to be commit fb80cf2aa13883c6dac461f95bc1000c4881d724)
This commit is contained in:
Tim Potter 2001-06-15 04:47:05 +00:00
parent 1aa05a31ac
commit 8888bf6582
1 changed files with 49 additions and 0 deletions
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49
source3/libsmb/smbencrypt.c
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@ -228,6 +228,39 @@ BOOL make_oem_passwd_hash(char data[516], const char *passwd, uchar old_pw_hash[
return True;
}
/***********************************************************
encode a password buffer
************************************************************/
BOOL encode_pw_buffer(char buffer[516], const char *new_pass,
int new_pw_len, BOOL nt_pass_set)
{
generate_random_buffer(buffer, 516, True);
if (nt_pass_set)
{
/*
* nt passwords are in unicode. last char overwrites NULL
* in ascii_to_unibuf, so use SIVAL *afterwards*.
*/
new_pw_len *= 2;
ascii_to_unistr((uint16 *)&buffer[512 - new_pw_len], new_pass,
new_pw_len);
}
else
{
memcpy(&buffer[512 - new_pw_len], new_pass, new_pw_len);
}
/*
* The length of the new password is in the last 4 bytes of
* the data buffer.
*/
SIVAL(buffer, 512, new_pw_len);
return True;
}
/***********************************************************
decode a password buffer
************************************************************/
@ -319,3 +352,19 @@ BOOL decode_pw_buffer(char in_buffer[516], char *new_pwrd,
}
/* Calculate the NT owfs of a user's password */
void nt_owf_genW(const UNISTR2 *pwd, uchar nt_p16[16])
{
char buf[512];
int i;
for (i = 0; i < MIN(pwd->uni_str_len, sizeof(buf) / 2); i++)
{
SIVAL(buf, i * 2, pwd->buffer[i]);
}
/* Calculate the MD4 hash (NT compatible) of the password */
mdfour(nt_p16, buf, pwd->uni_str_len * 2);
/* clear out local copy of user's password (just being paranoid). */
ZERO_STRUCT(buf);
}