* Unix SMB/CIFS implementation.
* Version 3.0
* NTLMSSP Signing routines
- * Copyright (C) Luke Kenneth Casson Leighton 1996-2001
- * Copyright (C) Andrew Bartlett 2003
+ * Copyright (C) Andrew Bartlett 2003-2005
*
* 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
#define SRV_SIGN "session key to server-to-client signing key magic constant"
#define SRV_SEAL "session key to server-to-client sealing key magic constant"
-static void NTLMSSPcalc_ap( unsigned char *hash, unsigned char *data, int len)
-{
- unsigned char index_i = hash[256];
- unsigned char index_j = hash[257];
- int ind;
-
- for (ind = 0; ind < len; ind++)
- {
- unsigned char tc;
- unsigned char t;
-
- index_i++;
- index_j += hash[index_i];
-
- tc = hash[index_i];
- hash[index_i] = hash[index_j];
- hash[index_j] = tc;
-
- t = hash[index_i] + hash[index_j];
- data[ind] = data[ind] ^ hash[t];
- }
-
- hash[256] = index_i;
- hash[257] = index_j;
-}
-
-static void calc_hash(unsigned char hash[258], unsigned char *k2, int k2l)
-{
- unsigned char j = 0;
- int ind;
-
- for (ind = 0; ind < 256; ind++)
- {
- hash[ind] = (unsigned char)ind;
- }
-
- for (ind = 0; ind < 256; ind++)
- {
- unsigned char tc;
-
- j += (hash[ind] + k2[ind%k2l]);
-
- tc = hash[ind];
- hash[ind] = hash[j];
- hash[j] = tc;
- }
-
- hash[256] = 0;
- hash[257] = 0;
-}
+/**
+ * Some notes on then NTLM2 code:
+ *
+ * NTLM2 is a AEAD system. This means that the data encrypted is not
+ * all the data that is signed. In DCE-RPC case, the headers of the
+ * DCE-RPC packets are also signed. This prevents some of the
+ * fun-and-games one might have by changing them.
+ *
+ */
-static void calc_ntlmv2_hash(unsigned char hash[258], unsigned char digest[16],
- DATA_BLOB session_key,
- const char *constant)
+static void calc_ntlmv2_key(unsigned char subkey[16],
+ DATA_BLOB session_key,
+ const char *constant)
{
struct MD5Context ctx3;
-
- /* NOTE: This code is currently complate fantasy - it's
- got more in common with reality than the previous code
- (the LM session key is not the right thing to use) but
- it still needs work */
-
MD5Init(&ctx3);
MD5Update(&ctx3, session_key.data, session_key.length);
- MD5Update(&ctx3, (const unsigned char *)constant, strlen(constant)+1);
- MD5Final(digest, &ctx3);
-
- calc_hash(hash, digest, 16);
+ MD5Update(&ctx3, constant, strlen(constant)+1);
+ MD5Final(subkey, &ctx3);
}
enum ntlmssp_direction {
};
static NTSTATUS ntlmssp_make_packet_signature(NTLMSSP_STATE *ntlmssp_state,
- const uchar *data, size_t length,
- enum ntlmssp_direction direction,
- DATA_BLOB *sig)
+ const uchar *data, size_t length,
+ const uchar *whole_pdu, size_t pdu_length,
+ enum ntlmssp_direction direction,
+ DATA_BLOB *sig,
+ BOOL encrypt_sig)
{
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
HMACMD5Context ctx;
uchar seq_num[4];
uchar digest[16];
- SIVAL(seq_num, 0, ntlmssp_state->ntlmssp_seq_num);
-
- hmac_md5_init_limK_to_64((const unsigned char *)(ntlmssp_state->send_sign_const), 16, &ctx);
- hmac_md5_update(seq_num, 4, &ctx);
- hmac_md5_update(data, length, &ctx);
- hmac_md5_final(digest, &ctx);
- if (!msrpc_gen(sig, "dBd", NTLMSSP_SIGN_VERSION, digest, 8 /* only copy first 8 bytes */
- , ntlmssp_state->ntlmssp_seq_num)) {
+ *sig = data_blob(NULL, NTLMSSP_SIG_SIZE);
+ if (!sig->data) {
return NT_STATUS_NO_MEMORY;
}
- if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
+ switch (direction) {
+ case NTLMSSP_SEND:
+ DEBUG(100,("ntlmssp_make_packet_signature: SEND seq = %u, len = %u, pdu_len = %u\n",
+ ntlmssp_state->ntlm2_send_seq_num,
+ (unsigned int)length,
+ (unsigned int)pdu_length));
+
+ SIVAL(seq_num, 0, ntlmssp_state->ntlm2_send_seq_num);
+ ntlmssp_state->ntlm2_send_seq_num++;
+ hmac_md5_init_limK_to_64(ntlmssp_state->send_sign_key, 16, &ctx);
+ break;
+ case NTLMSSP_RECEIVE:
+
+ DEBUG(100,("ntlmssp_make_packet_signature: RECV seq = %u, len = %u, pdu_len = %u\n",
+ ntlmssp_state->ntlm2_recv_seq_num,
+ (unsigned int)length,
+ (unsigned int)pdu_length));
+
+ SIVAL(seq_num, 0, ntlmssp_state->ntlm2_recv_seq_num);
+ ntlmssp_state->ntlm2_recv_seq_num++;
+ hmac_md5_init_limK_to_64(ntlmssp_state->recv_sign_key, 16, &ctx);
+ break;
+ }
+
+ dump_data_pw("pdu data ", whole_pdu, pdu_length);
+
+ hmac_md5_update(seq_num, 4, &ctx);
+ hmac_md5_update(whole_pdu, pdu_length, &ctx);
+ hmac_md5_final(digest, &ctx);
+
+ if (encrypt_sig && (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH)) {
switch (direction) {
case NTLMSSP_SEND:
- NTLMSSPcalc_ap(ntlmssp_state->send_sign_hash, sig->data+4, sig->length-4);
+ smb_arc4_crypt(ntlmssp_state->send_seal_arc4_state, digest, 8);
break;
case NTLMSSP_RECEIVE:
- NTLMSSPcalc_ap(ntlmssp_state->recv_sign_hash, sig->data+4, sig->length-4);
+ smb_arc4_crypt(ntlmssp_state->recv_seal_arc4_state, digest, 8);
break;
}
}
+
+ SIVAL(sig->data, 0, NTLMSSP_SIGN_VERSION);
+ memcpy(sig->data + 4, digest, 8);
+ memcpy(sig->data + 12, seq_num, 4);
+
+ dump_data_pw("ntlmssp v2 sig ", sig->data, sig->length);
+
} else {
uint32 crc;
crc = crc32_calc_buffer((const char *)data, length);
- if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
+ if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmv1_seq_num)) {
return NT_STATUS_NO_MEMORY;
}
- dump_data_pw("ntlmssp hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
- NTLMSSPcalc_ap(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
+ ntlmssp_state->ntlmv1_seq_num++;
+
+ dump_data_pw("ntlmssp hash:\n", ntlmssp_state->ntlmv1_arc4_state,
+ sizeof(ntlmssp_state->ntlmv1_arc4_state));
+ smb_arc4_crypt(ntlmssp_state->ntlmv1_arc4_state, sig->data+4, sig->length-4);
}
return NT_STATUS_OK;
}
NTSTATUS ntlmssp_sign_packet(NTLMSSP_STATE *ntlmssp_state,
const uchar *data, size_t length,
+ const uchar *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
NTSTATUS nt_status;
+
+ if (!ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SIGN) {
+ DEBUG(3, ("NTLMSSP Signing not negotiated - cannot sign packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
if (!ntlmssp_state->session_key.length) {
DEBUG(3, ("NO session key, cannot check sign packet\n"));
return NT_STATUS_NO_USER_SESSION_KEY;
}
- nt_status = ntlmssp_make_packet_signature(ntlmssp_state, data, length, NTLMSSP_SEND, sig);
+ nt_status = ntlmssp_make_packet_signature(ntlmssp_state,
+ data, length,
+ whole_pdu, pdu_length,
+ NTLMSSP_SEND, sig, True);
- /* increment counter on send */
- ntlmssp_state->ntlmssp_seq_num++;
return nt_status;
}
*/
NTSTATUS ntlmssp_check_packet(NTLMSSP_STATE *ntlmssp_state,
- const uchar *data, size_t length,
- const DATA_BLOB *sig)
+ const uchar *data, size_t length,
+ const uchar *whole_pdu, size_t pdu_length,
+ const DATA_BLOB *sig)
{
DATA_BLOB local_sig;
NTSTATUS nt_status;
(unsigned long)sig->length));
}
- nt_status = ntlmssp_make_packet_signature(ntlmssp_state, data,
- length, NTLMSSP_RECEIVE, &local_sig);
+ nt_status = ntlmssp_make_packet_signature(ntlmssp_state,
+ data, length,
+ whole_pdu, pdu_length,
+ NTLMSSP_RECEIVE, &local_sig, True);
if (!NT_STATUS_IS_OK(nt_status)) {
DEBUG(0, ("NTLMSSP packet check failed with %s\n", nt_errstr(nt_status)));
+ data_blob_free(&local_sig);
return nt_status;
}
- if (memcmp(sig->data+sig->length - 8, local_sig.data+local_sig.length - 8, 8) != 0) {
- DEBUG(5, ("BAD SIG: wanted signature of\n"));
- dump_data(5, (const char *)local_sig.data, local_sig.length);
-
- DEBUG(5, ("BAD SIG: got signature of\n"));
- dump_data(5, (const char *)(sig->data), sig->length);
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
+ if (local_sig.length != sig->length ||
+ memcmp(local_sig.data, sig->data, sig->length) != 0) {
+ DEBUG(5, ("BAD SIG NTLM2: wanted signature of\n"));
+ dump_data(5, local_sig.data, local_sig.length);
- DEBUG(0, ("NTLMSSP packet check failed due to invalid signature!\n"));
- return NT_STATUS_ACCESS_DENIED;
- }
+ DEBUG(5, ("BAD SIG: got signature of\n"));
+ dump_data(5, sig->data, sig->length);
+
+ DEBUG(0, ("NTLMSSP NTLM2 packet check failed due to invalid signature!\n"));
+ data_blob_free(&local_sig);
+ return NT_STATUS_ACCESS_DENIED;
+ }
+ } else {
+ if (local_sig.length != sig->length ||
+ memcmp(local_sig.data + 8, sig->data + 8, sig->length - 8) != 0) {
+ DEBUG(5, ("BAD SIG NTLM1: wanted signature of\n"));
+ dump_data(5, local_sig.data, local_sig.length);
+
+ DEBUG(5, ("BAD SIG: got signature of\n"));
+ dump_data(5, sig->data, sig->length);
- /* increment counter on recieive */
- ntlmssp_state->ntlmssp_seq_num++;
+ DEBUG(0, ("NTLMSSP NTLM1 packet check failed due to invalid signature!\n"));
+ data_blob_free(&local_sig);
+ return NT_STATUS_ACCESS_DENIED;
+ }
+ }
+ dump_data_pw("checked ntlmssp signature\n", sig->data, sig->length);
+ DEBUG(10,("ntlmssp_check_packet: NTLMSSP signature OK !\n"));
+ data_blob_free(&local_sig);
return NT_STATUS_OK;
}
-
/**
* Seal data with the NTLMSSP algorithm
*
NTSTATUS ntlmssp_seal_packet(NTLMSSP_STATE *ntlmssp_state,
uchar *data, size_t length,
+ uchar *whole_pdu, size_t pdu_length,
DATA_BLOB *sig)
{
+ NTSTATUS nt_status;
+
+ if (!ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_SEAL) {
+ DEBUG(3, ("NTLMSSP Sealing not negotiated - cannot seal packet!\n"));
+ return NT_STATUS_INVALID_PARAMETER;
+ }
+
if (!ntlmssp_state->session_key.length) {
DEBUG(3, ("NO session key, cannot seal packet\n"));
return NT_STATUS_NO_USER_SESSION_KEY;
DEBUG(10,("ntlmssp_seal_data: seal\n"));
dump_data_pw("ntlmssp clear data\n", data, length);
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- HMACMD5Context ctx;
- char seq_num[4];
- uchar digest[16];
- SIVAL(seq_num, 0, ntlmssp_state->ntlmssp_seq_num);
-
- hmac_md5_init_limK_to_64((const unsigned char *)(ntlmssp_state->send_sign_const), 16, &ctx);
- hmac_md5_update((const unsigned char *)seq_num, 4, &ctx);
- hmac_md5_update(data, length, &ctx);
- hmac_md5_final(digest, &ctx);
-
- if (!msrpc_gen(sig, "dBd", NTLMSSP_SIGN_VERSION, digest, 8 /* only copy first 8 bytes */
- , ntlmssp_state->ntlmssp_seq_num)) {
- return NT_STATUS_NO_MEMORY;
+ /* The order of these two operations matters - we must first seal the packet,
+ then seal the sequence number - this is becouse the send_seal_hash is not
+ constant, but is is rather updated with each iteration */
+ nt_status = ntlmssp_make_packet_signature(ntlmssp_state,
+ data, length,
+ whole_pdu, pdu_length,
+ NTLMSSP_SEND, sig, False);
+ smb_arc4_crypt(ntlmssp_state->send_seal_arc4_state, data, length);
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCH) {
+ smb_arc4_crypt(ntlmssp_state->send_seal_arc4_state, sig->data+4, 8);
}
-
- dump_data_pw("ntlmssp client sealing hash:\n",
- ntlmssp_state->send_seal_hash,
- sizeof(ntlmssp_state->send_seal_hash));
- NTLMSSPcalc_ap(ntlmssp_state->send_seal_hash, data, length);
- dump_data_pw("ntlmssp client signing hash:\n",
- ntlmssp_state->send_sign_hash,
- sizeof(ntlmssp_state->send_sign_hash));
- NTLMSSPcalc_ap(ntlmssp_state->send_sign_hash, sig->data+4, sig->length-4);
} else {
uint32 crc;
crc = crc32_calc_buffer((const char *)data, length);
- if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmssp_seq_num)) {
+ if (!msrpc_gen(sig, "dddd", NTLMSSP_SIGN_VERSION, 0, crc, ntlmssp_state->ntlmv1_seq_num)) {
return NT_STATUS_NO_MEMORY;
}
/* The order of these two operations matters - we must first seal the packet,
- then seal the sequence number - this is becouse the ntlmssp_hash is not
+ then seal the sequence number - this is becouse the ntlmv1_arc4_state is not
constant, but is is rather updated with each iteration */
- dump_data_pw("ntlmssp hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
- NTLMSSPcalc_ap(ntlmssp_state->ntlmssp_hash, data, length);
+ dump_data_pw("ntlmv1 arc4 state:\n", ntlmssp_state->ntlmv1_arc4_state,
+ sizeof(ntlmssp_state->ntlmv1_arc4_state));
+ smb_arc4_crypt(ntlmssp_state->ntlmv1_arc4_state, data, length);
+
+ dump_data_pw("ntlmv1 arc4 state:\n", ntlmssp_state->ntlmv1_arc4_state,
+ sizeof(ntlmssp_state->ntlmv1_arc4_state));
+
+ smb_arc4_crypt(ntlmssp_state->ntlmv1_arc4_state, sig->data+4, sig->length-4);
- dump_data_pw("ntlmssp hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
- NTLMSSPcalc_ap(ntlmssp_state->ntlmssp_hash, sig->data+4, sig->length-4);
+ ntlmssp_state->ntlmv1_seq_num++;
+
+ nt_status = NT_STATUS_OK;
}
+ dump_data_pw("ntlmssp signature\n", sig->data, sig->length);
dump_data_pw("ntlmssp sealed data\n", data, length);
- /* increment counter on send */
- ntlmssp_state->ntlmssp_seq_num++;
-
return NT_STATUS_OK;
}
*/
NTSTATUS ntlmssp_unseal_packet(NTLMSSP_STATE *ntlmssp_state,
- uchar *data, size_t length,
- DATA_BLOB *sig)
+ uchar *data, size_t length,
+ uchar *whole_pdu, size_t pdu_length,
+ DATA_BLOB *sig)
{
if (!ntlmssp_state->session_key.length) {
DEBUG(3, ("NO session key, cannot unseal packet\n"));
return NT_STATUS_NO_USER_SESSION_KEY;
}
- DEBUG(10,("ntlmssp__unseal_data: seal\n"));
+ DEBUG(10,("ntlmssp_unseal_data: seal\n"));
dump_data_pw("ntlmssp sealed data\n", data, length);
+
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2) {
- NTLMSSPcalc_ap(ntlmssp_state->recv_seal_hash, data, length);
+ /* First unseal the data. */
+ smb_arc4_crypt(ntlmssp_state->recv_seal_arc4_state, data, length);
+ dump_data_pw("ntlmv2 clear data\n", data, length);
} else {
- dump_data_pw("ntlmssp hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
- NTLMSSPcalc_ap(ntlmssp_state->ntlmssp_hash, data, length);
+ smb_arc4_crypt(ntlmssp_state->ntlmv1_arc4_state, data, length);
+ dump_data_pw("ntlmv1 clear data\n", data, length);
}
- dump_data_pw("ntlmssp clear data\n", data, length);
-
- return ntlmssp_check_packet(ntlmssp_state, data, length, sig);
+ return ntlmssp_check_packet(ntlmssp_state, data, length, whole_pdu, pdu_length, sig);
}
/**
if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_NTLM2)
{
+ DATA_BLOB weak_session_key = ntlmssp_state->session_key;
const char *send_sign_const;
const char *send_seal_const;
const char *recv_sign_const;
break;
}
- calc_ntlmv2_hash(ntlmssp_state->send_sign_hash,
- ntlmssp_state->send_sign_const,
- ntlmssp_state->session_key, send_sign_const);
- dump_data_pw("NTLMSSP send sign hash:\n",
- ntlmssp_state->send_sign_hash,
- sizeof(ntlmssp_state->send_sign_hash));
-
- calc_ntlmv2_hash(ntlmssp_state->send_seal_hash,
- ntlmssp_state->send_seal_const,
- ntlmssp_state->session_key, send_seal_const);
- dump_data_pw("NTLMSSP send sesl hash:\n",
- ntlmssp_state->send_seal_hash,
- sizeof(ntlmssp_state->send_seal_hash));
-
- calc_ntlmv2_hash(ntlmssp_state->recv_sign_hash,
- ntlmssp_state->recv_sign_const,
- ntlmssp_state->session_key, recv_sign_const);
- dump_data_pw("NTLMSSP receive sign hash:\n",
- ntlmssp_state->recv_sign_hash,
- sizeof(ntlmssp_state->recv_sign_hash));
-
- calc_ntlmv2_hash(ntlmssp_state->recv_seal_hash,
- ntlmssp_state->recv_seal_const,
- ntlmssp_state->session_key, recv_seal_const);
- dump_data_pw("NTLMSSP receive seal hash:\n",
- ntlmssp_state->recv_sign_hash,
- sizeof(ntlmssp_state->recv_sign_hash));
-
- }
- else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_LM_KEY) {
- if (!ntlmssp_state->session_key.data || ntlmssp_state->session_key.length < 8) {
- /* can't sign or check signatures yet */
- DEBUG(5, ("NTLMSSP Sign/Seal - cannot use LM KEY yet\n"));
- return NT_STATUS_UNSUCCESSFUL;
+ /**
+ Weaken NTLMSSP keys to cope with down-level clients, servers and export restrictions.
+ We probably should have some parameters to control this, once we get NTLM2 working.
+ */
+
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_128) {
+ ;
+ } else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_56) {
+ weak_session_key.length = 6;
+ } else { /* forty bits */
+ weak_session_key.length = 5;
}
+
+ dump_data_pw("NTLMSSP weakend master key:\n",
+ weak_session_key.data,
+ weak_session_key.length);
+
+ /* SEND */
+ calc_ntlmv2_key(ntlmssp_state->send_sign_key,
+ ntlmssp_state->session_key, send_sign_const);
+ dump_data_pw("NTLMSSP send sign key:\n",
+ ntlmssp_state->send_sign_key, 16);
+
+ calc_ntlmv2_key(ntlmssp_state->send_seal_key,
+ weak_session_key, send_seal_const);
+ dump_data_pw("NTLMSSP send seal key:\n",
+ ntlmssp_state->send_seal_key, 16);
+
+ smb_arc4_init(ntlmssp_state->send_seal_arc4_state,
+ ntlmssp_state->send_seal_key, 16);
+
+ dump_data_pw("NTLMSSP send seal arc4 state:\n",
+ ntlmssp_state->send_seal_arc4_state,
+ sizeof(ntlmssp_state->send_seal_arc4_state));
+
+ /* RECV */
+ calc_ntlmv2_key(ntlmssp_state->recv_sign_key,
+ ntlmssp_state->session_key, recv_sign_const);
+ dump_data_pw("NTLMSSP recv send sign key:\n",
+ ntlmssp_state->recv_sign_key, 16);
+
+ calc_ntlmv2_key(ntlmssp_state->recv_seal_key,
+ weak_session_key, recv_seal_const);
- DEBUG(5, ("NTLMSSP Sign/Seal - using LM KEY\n"));
+ dump_data_pw("NTLMSSP recv seal key:\n",
+ ntlmssp_state->recv_seal_key, 16);
+
+ smb_arc4_init(ntlmssp_state->recv_seal_arc4_state,
+ ntlmssp_state->recv_seal_key, 16);
+
+ dump_data_pw("NTLMSSP recv seal arc4 state:\n",
+ ntlmssp_state->recv_seal_arc4_state,
+ sizeof(ntlmssp_state->recv_seal_arc4_state));
+
+ ntlmssp_state->ntlm2_send_seq_num = 0;
+ ntlmssp_state->ntlm2_recv_seq_num = 0;
+
- calc_hash(ntlmssp_state->ntlmssp_hash, ntlmssp_state->session_key.data, 8);
- dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
} else {
- if (!ntlmssp_state->session_key.data || ntlmssp_state->session_key.length < 16) {
- /* can't sign or check signatures yet */
- DEBUG(5, ("NTLMSSP Sign/Seal - cannot use NT KEY yet\n"));
- return NT_STATUS_UNSUCCESSFUL;
+#if 0
+ /* Hmmm. Shouldn't we also weaken keys for ntlmv1 ? JRA. */
+
+ DATA_BLOB weak_session_key = ntlmssp_state->session_key;
+ /**
+ Weaken NTLMSSP keys to cope with down-level clients, servers and export restrictions.
+ We probably should have some parameters to control this, once we get NTLM2 working.
+ */
+
+ if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_128) {
+ ;
+ } else if (ntlmssp_state->neg_flags & NTLMSSP_NEGOTIATE_56) {
+ weak_session_key.length = 6;
+ } else { /* forty bits */
+ weak_session_key.length = 5;
}
-
- DEBUG(5, ("NTLMSSP Sign/Seal - using NT KEY\n"));
+ dump_data_pw("NTLMSSP weakend master key:\n",
+ weak_session_key.data,
+ weak_session_key.length);
+#endif
- calc_hash(ntlmssp_state->ntlmssp_hash, ntlmssp_state->session_key.data, 16);
- dump_data_pw("NTLMSSP hash:\n", ntlmssp_state->ntlmssp_hash,
- sizeof(ntlmssp_state->ntlmssp_hash));
- }
+ DEBUG(5, ("NTLMSSP Sign/Seal - using NTLM1\n"));
+
+ smb_arc4_init(ntlmssp_state->ntlmv1_arc4_state,
+ ntlmssp_state->session_key.data, ntlmssp_state->session_key.length);
- ntlmssp_state->ntlmssp_seq_num = 0;
+ dump_data_pw("NTLMv1 arc4 state:\n", ntlmssp_state->ntlmv1_arc4_state,
+ sizeof(ntlmssp_state->ntlmv1_arc4_state));
+
+ ntlmssp_state->ntlmv1_seq_num = 0;
+ }
return NT_STATUS_OK;
}
git.samba.org / gd / samba / .git / blobdiff