* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
- * Copyright (C) 1998 - 2012, Daniel Stenberg, <daniel@haxx.se>, et al.
+ * Copyright (C) 1998 - 2018, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
+ * are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
#include "curl_setup.h"
-#if defined(USE_NTLM) && !defined(USE_WINDOWS_SSPI)
+#if defined(USE_NTLM)
/*
* NTLM details:
*
- * http://davenport.sourceforge.net/ntlm.html
- * http://www.innovation.ch/java/ntlm.html
+ * https://davenport.sourceforge.io/ntlm.html
+ * https://www.innovation.ch/java/ntlm.html
*/
-#ifdef USE_SSLEAY
+/* Please keep the SSL backend-specific #if branches in this order:
+
+ 1. USE_OPENSSL
+ 2. USE_GNUTLS_NETTLE
+ 3. USE_GNUTLS
+ 4. USE_NSS
+ 5. USE_MBEDTLS
+ 6. USE_DARWINSSL
+ 7. USE_OS400CRYPTO
+ 8. USE_WIN32_CRYPTO
+
+ This ensures that:
+ - the same SSL branch gets activated throughout this source
+ file even if multiple backends are enabled at the same time.
+ - OpenSSL and NSS have higher priority than Windows Crypt, due
+ to issues with the latter supporting NTLM2Session responses
+ in NTLM type-3 messages.
+ */
+
+#if !defined(USE_WINDOWS_SSPI) || defined(USE_WIN32_CRYPTO)
+
+#ifdef USE_OPENSSL
# ifdef USE_OPENSSL
# include <openssl/des.h>
# include "curl_md4.h"
# define MD5_DIGEST_LENGTH MD5_LENGTH
+#elif defined(USE_MBEDTLS)
+
+# include <mbedtls/des.h>
+# include <mbedtls/md4.h>
+# if !defined(MBEDTLS_MD4_C)
+# include "curl_md4.h"
+# endif
+
#elif defined(USE_DARWINSSL)
# include <CommonCrypto/CommonCryptor.h>
# include <CommonCrypto/CommonDigest.h>
+#elif defined(USE_OS400CRYPTO)
+# include "cipher.mih" /* mih/cipher */
+# include "curl_md4.h"
+#elif defined(USE_WIN32_CRYPTO)
+# include <wincrypt.h>
#else
# error "Can't compile NTLM support without a crypto library."
#endif
-#include "curl_urldata.h"
-#include "curl_non-ascii.h"
-#include "curl_rawstr.h"
-#include "curl_memory.h"
+#include "urldata.h"
+#include "non-ascii.h"
+#include "strcase.h"
#include "curl_ntlm_core.h"
+#include "curl_md5.h"
+#include "curl_hmac.h"
+#include "warnless.h"
+#include "curl_endian.h"
+#include "curl_des.h"
+/* The last 3 #include files should be in this order */
+#include "curl_printf.h"
+#include "curl_memory.h"
+#include "memdebug.h"
-#define _MPRINTF_REPLACE /* use our functions only */
-#include <curl/mprintf.h>
-
-/* The last #include file should be: */
-#include "curl_memdebug.h"
+#define NTLM_HMAC_MD5_LEN (16)
+#define NTLMv2_BLOB_SIGNATURE "\x01\x01\x00\x00"
+#define NTLMv2_BLOB_LEN (44 -16 + ntlm->target_info_len + 4)
-#ifdef USE_SSLEAY
/*
- * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The
- * key schedule ks is also set.
- */
-static void setup_des_key(const unsigned char *key_56,
- DES_key_schedule DESKEYARG(ks))
+* Turns a 56-bit key into being 64-bit wide.
+*/
+static void extend_key_56_to_64(const unsigned char *key_56, char *key)
{
- DES_cblock key;
-
key[0] = key_56[0];
key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
-
- DES_set_odd_parity(&key);
- DES_set_key(&key, ks);
}
-#else /* defined(USE_SSLEAY) */
-
+#ifdef USE_OPENSSL
/*
- * Turns a 56 bit key into the 64 bit, odd parity key. Used by GnuTLS and NSS.
+ * Turns a 56 bit key into the 64 bit, odd parity key and sets the key. The
+ * key schedule ks is also set.
*/
-static void extend_key_56_to_64(const unsigned char *key_56, char *key)
+static void setup_des_key(const unsigned char *key_56,
+ DES_key_schedule DESKEYARG(ks))
{
- key[0] = key_56[0];
- key[1] = (unsigned char)(((key_56[0] << 7) & 0xFF) | (key_56[1] >> 1));
- key[2] = (unsigned char)(((key_56[1] << 6) & 0xFF) | (key_56[2] >> 2));
- key[3] = (unsigned char)(((key_56[2] << 5) & 0xFF) | (key_56[3] >> 3));
- key[4] = (unsigned char)(((key_56[3] << 4) & 0xFF) | (key_56[4] >> 4));
- key[5] = (unsigned char)(((key_56[4] << 3) & 0xFF) | (key_56[5] >> 5));
- key[6] = (unsigned char)(((key_56[5] << 2) & 0xFF) | (key_56[6] >> 6));
- key[7] = (unsigned char) ((key_56[6] << 1) & 0xFF);
+ DES_cblock key;
+
+ /* Expand the 56-bit key to 64-bits */
+ extend_key_56_to_64(key_56, (char *) &key);
+
+ /* Set the key parity to odd */
+ DES_set_odd_parity(&key);
+
+ /* Set the key */
+ DES_set_key(&key, ks);
}
-#if defined(USE_GNUTLS_NETTLE)
+#elif defined(USE_GNUTLS_NETTLE)
static void setup_des_key(const unsigned char *key_56,
struct des_ctx *des)
{
char key[8];
+
+ /* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
- des_set_key(des, (const uint8_t*)key);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
+
+ /* Set the key */
+ des_set_key(des, (const uint8_t *) key);
}
#elif defined(USE_GNUTLS)
gcry_cipher_hd_t *des)
{
char key[8];
+
+ /* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
- gcry_cipher_setkey(*des, key, 8);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
+
+ /* Set the key */
+ gcry_cipher_setkey(*des, key, sizeof(key));
}
#elif defined(USE_NSS)
if(!slot)
return FALSE;
- /* expand the 56 bit key to 64 bit and wrap by NSS */
+ /* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
+
+ /* Import the key */
key_item.data = (unsigned char *)key;
- key_item.len = /* hard-wired */ 8;
+ key_item.len = sizeof(key);
symkey = PK11_ImportSymKey(slot, mech, PK11_OriginUnwrap, CKA_ENCRYPT,
&key_item, NULL);
if(!symkey)
goto fail;
- /* create DES encryption context */
+ /* Create the DES encryption context */
param = PK11_ParamFromIV(mech, /* no IV in ECB mode */ NULL);
if(!param)
goto fail;
if(!ctx)
goto fail;
- /* perform the encryption */
+ /* Perform the encryption */
if(SECSuccess == PK11_CipherOp(ctx, out, &out_len, /* outbuflen */ 8,
(unsigned char *)in, /* inbuflen */ 8)
&& SECSuccess == PK11_Finalize(ctx))
return rv;
}
+#elif defined(USE_MBEDTLS)
+
+static bool encrypt_des(const unsigned char *in, unsigned char *out,
+ const unsigned char *key_56)
+{
+ mbedtls_des_context ctx;
+ char key[8];
+
+ /* Expand the 56-bit key to 64-bits */
+ extend_key_56_to_64(key_56, key);
+
+ /* Set the key parity to odd */
+ mbedtls_des_key_set_parity((unsigned char *) key);
+
+ /* Perform the encryption */
+ mbedtls_des_init(&ctx);
+ mbedtls_des_setkey_enc(&ctx, (unsigned char *) key);
+ return mbedtls_des_crypt_ecb(&ctx, in, out) == 0;
+}
+
#elif defined(USE_DARWINSSL)
static bool encrypt_des(const unsigned char *in, unsigned char *out,
size_t out_len;
CCCryptorStatus err;
+ /* Expand the 56-bit key to 64-bits */
extend_key_56_to_64(key_56, key);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) key, sizeof(key));
+
+ /* Perform the encryption */
err = CCCrypt(kCCEncrypt, kCCAlgorithmDES, kCCOptionECBMode, key,
kCCKeySizeDES, NULL, in, 8 /* inbuflen */, out,
8 /* outbuflen */, &out_len);
+
return err == kCCSuccess;
}
-#endif /* defined(USE_DARWINSSL) */
+#elif defined(USE_OS400CRYPTO)
+
+static bool encrypt_des(const unsigned char *in, unsigned char *out,
+ const unsigned char *key_56)
+{
+ char key[8];
+ _CIPHER_Control_T ctl;
+
+ /* Setup the cipher control structure */
+ ctl.Func_ID = ENCRYPT_ONLY;
+ ctl.Data_Len = sizeof(key);
+
+ /* Expand the 56-bit key to 64-bits */
+ extend_key_56_to_64(key_56, ctl.Crypto_Key);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) ctl.Crypto_Key, ctl.Data_Len);
+
+ /* Perform the encryption */
+ _CIPHER((_SPCPTR *) &out, &ctl, (_SPCPTR *) &in);
+
+ return TRUE;
+}
+
+#elif defined(USE_WIN32_CRYPTO)
+
+static bool encrypt_des(const unsigned char *in, unsigned char *out,
+ const unsigned char *key_56)
+{
+ HCRYPTPROV hprov;
+ HCRYPTKEY hkey;
+ struct {
+ BLOBHEADER hdr;
+ unsigned int len;
+ char key[8];
+ } blob;
+ DWORD len = 8;
+
+ /* Acquire the crypto provider */
+ if(!CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_FULL,
+ CRYPT_VERIFYCONTEXT))
+ return FALSE;
+
+ /* Setup the key blob structure */
+ memset(&blob, 0, sizeof(blob));
+ blob.hdr.bType = PLAINTEXTKEYBLOB;
+ blob.hdr.bVersion = 2;
+ blob.hdr.aiKeyAlg = CALG_DES;
+ blob.len = sizeof(blob.key);
+
+ /* Expand the 56-bit key to 64-bits */
+ extend_key_56_to_64(key_56, blob.key);
+
+ /* Set the key parity to odd */
+ Curl_des_set_odd_parity((unsigned char *) blob.key, sizeof(blob.key));
+
+ /* Import the key */
+ if(!CryptImportKey(hprov, (BYTE *) &blob, sizeof(blob), 0, 0, &hkey)) {
+ CryptReleaseContext(hprov, 0);
+
+ return FALSE;
+ }
+
+ memcpy(out, in, 8);
+
+ /* Perform the encryption */
+ CryptEncrypt(hkey, 0, FALSE, 0, out, &len, len);
+
+ CryptDestroyKey(hkey);
+ CryptReleaseContext(hprov, 0);
+
+ return TRUE;
+}
-#endif /* defined(USE_SSLEAY) */
+#endif /* defined(USE_WIN32_CRYPTO) */
/*
* takes a 21 byte array and treats it as 3 56-bit DES keys. The
const unsigned char *plaintext,
unsigned char *results)
{
-#ifdef USE_SSLEAY
+#ifdef USE_OPENSSL
DES_key_schedule ks;
setup_des_key(keys, DESKEY(ks));
setup_des_key(keys + 14, &des);
gcry_cipher_encrypt(des, results + 16, 8, plaintext, 8);
gcry_cipher_close(des);
-#elif defined(USE_NSS) || defined(USE_DARWINSSL)
+#elif defined(USE_NSS) || defined(USE_MBEDTLS) || defined(USE_DARWINSSL) \
+ || defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO)
encrypt_des(plaintext, results, keys);
encrypt_des(plaintext, results + 8, keys + 7);
encrypt_des(plaintext, results + 16, keys + 14);
/*
* Set up lanmanager hashed password
*/
-void Curl_ntlm_core_mk_lm_hash(struct SessionHandle *data,
- const char *password,
- unsigned char *lmbuffer /* 21 bytes */)
+CURLcode Curl_ntlm_core_mk_lm_hash(struct Curl_easy *data,
+ const char *password,
+ unsigned char *lmbuffer /* 21 bytes */)
{
- CURLcode res;
+ CURLcode result;
unsigned char pw[14];
static const unsigned char magic[] = {
0x4B, 0x47, 0x53, 0x21, 0x40, 0x23, 0x24, 0x25 /* i.e. KGS!@#$% */
* The LanManager hashed password needs to be created using the
* password in the network encoding not the host encoding.
*/
- res = Curl_convert_to_network(data, (char *)pw, 14);
- if(res)
- return;
+ result = Curl_convert_to_network(data, (char *)pw, 14);
+ if(result)
+ return result;
{
/* Create LanManager hashed password. */
-#ifdef USE_SSLEAY
+#ifdef USE_OPENSSL
DES_key_schedule ks;
setup_des_key(pw, DESKEY(ks));
setup_des_key(pw + 7, &des);
gcry_cipher_encrypt(des, lmbuffer + 8, 8, magic, 8);
gcry_cipher_close(des);
-#elif defined(USE_NSS) || defined(USE_DARWINSSL)
+#elif defined(USE_NSS) || defined(USE_MBEDTLS) || defined(USE_DARWINSSL) \
+ || defined(USE_OS400CRYPTO) || defined(USE_WIN32_CRYPTO)
encrypt_des(magic, lmbuffer, pw);
encrypt_des(magic, lmbuffer + 8, pw + 7);
#endif
memset(lmbuffer + 16, 0, 21 - 16);
}
+
+ return CURLE_OK;
}
-#if USE_NTRESPONSES
+#ifdef USE_NTRESPONSES
static void ascii_to_unicode_le(unsigned char *dest, const char *src,
size_t srclen)
{
}
}
+#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
+
+static void ascii_uppercase_to_unicode_le(unsigned char *dest,
+ const char *src, size_t srclen)
+{
+ size_t i;
+ for(i = 0; i < srclen; i++) {
+ dest[2 * i] = (unsigned char)(Curl_raw_toupper(src[i]));
+ dest[2 * i + 1] = '\0';
+ }
+}
+
+#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
+
/*
* Set up nt hashed passwords
+ * @unittest: 1600
*/
-CURLcode Curl_ntlm_core_mk_nt_hash(struct SessionHandle *data,
+CURLcode Curl_ntlm_core_mk_nt_hash(struct Curl_easy *data,
const char *password,
unsigned char *ntbuffer /* 21 bytes */)
{
size_t len = strlen(password);
- unsigned char *pw = malloc(len * 2);
+ unsigned char *pw;
CURLcode result;
+ if(len > SIZE_T_MAX/2) /* avoid integer overflow */
+ return CURLE_OUT_OF_MEMORY;
+ pw = len ? malloc(len * 2) : strdup("");
if(!pw)
return CURLE_OUT_OF_MEMORY;
{
/* Create NT hashed password. */
-#ifdef USE_SSLEAY
+#ifdef USE_OPENSSL
MD4_CTX MD4pw;
MD4_Init(&MD4pw);
MD4_Update(&MD4pw, pw, 2 * len);
gcry_md_hd_t MD4pw;
gcry_md_open(&MD4pw, GCRY_MD_MD4, 0);
gcry_md_write(MD4pw, pw, 2 * len);
- memcpy (ntbuffer, gcry_md_read (MD4pw, 0), MD4_DIGEST_LENGTH);
+ memcpy(ntbuffer, gcry_md_read(MD4pw, 0), MD4_DIGEST_LENGTH);
gcry_md_close(MD4pw);
#elif defined(USE_NSS)
Curl_md4it(ntbuffer, pw, 2 * len);
+#elif defined(USE_MBEDTLS)
+#if defined(MBEDTLS_MD4_C)
+ mbedtls_md4(pw, 2 * len, ntbuffer);
+#else
+ Curl_md4it(ntbuffer, pw, 2 * len);
+#endif
#elif defined(USE_DARWINSSL)
- (void)CC_MD4(pw, 2 * len, ntbuffer);
+ (void)CC_MD4(pw, (CC_LONG)(2 * len), ntbuffer);
+#elif defined(USE_OS400CRYPTO)
+ Curl_md4it(ntbuffer, pw, 2 * len);
+#elif defined(USE_WIN32_CRYPTO)
+ HCRYPTPROV hprov;
+ if(CryptAcquireContext(&hprov, NULL, NULL, PROV_RSA_FULL,
+ CRYPT_VERIFYCONTEXT)) {
+ HCRYPTHASH hhash;
+ if(CryptCreateHash(hprov, CALG_MD4, 0, 0, &hhash)) {
+ DWORD length = 16;
+ CryptHashData(hhash, pw, (unsigned int)len * 2, 0);
+ CryptGetHashParam(hhash, HP_HASHVAL, ntbuffer, &length, 0);
+ CryptDestroyHash(hhash);
+ }
+ CryptReleaseContext(hprov, 0);
+ }
#endif
memset(ntbuffer + 16, 0, 21 - 16);
return CURLE_OK;
}
+
+#if defined(USE_NTLM_V2) && !defined(USE_WINDOWS_SSPI)
+
+/* This returns the HMAC MD5 digest */
+CURLcode Curl_hmac_md5(const unsigned char *key, unsigned int keylen,
+ const unsigned char *data, unsigned int datalen,
+ unsigned char *output)
+{
+ HMAC_context *ctxt = Curl_HMAC_init(Curl_HMAC_MD5, key, keylen);
+
+ if(!ctxt)
+ return CURLE_OUT_OF_MEMORY;
+
+ /* Update the digest with the given challenge */
+ Curl_HMAC_update(ctxt, data, datalen);
+
+ /* Finalise the digest */
+ Curl_HMAC_final(ctxt, output);
+
+ return CURLE_OK;
+}
+
+/* This creates the NTLMv2 hash by using NTLM hash as the key and Unicode
+ * (uppercase UserName + Domain) as the data
+ */
+CURLcode Curl_ntlm_core_mk_ntlmv2_hash(const char *user, size_t userlen,
+ const char *domain, size_t domlen,
+ unsigned char *ntlmhash,
+ unsigned char *ntlmv2hash)
+{
+ /* Unicode representation */
+ size_t identity_len;
+ unsigned char *identity;
+ CURLcode result = CURLE_OK;
+
+ /* we do the length checks below separately to avoid integer overflow risk
+ on extreme data lengths */
+ if((userlen > SIZE_T_MAX/2) ||
+ (domlen > SIZE_T_MAX/2) ||
+ ((userlen + domlen) > SIZE_T_MAX/2))
+ return CURLE_OUT_OF_MEMORY;
+
+ identity_len = (userlen + domlen) * 2;
+ identity = malloc(identity_len);
+
+ if(!identity)
+ return CURLE_OUT_OF_MEMORY;
+
+ ascii_uppercase_to_unicode_le(identity, user, userlen);
+ ascii_to_unicode_le(identity + (userlen << 1), domain, domlen);
+
+ result = Curl_hmac_md5(ntlmhash, 16, identity, curlx_uztoui(identity_len),
+ ntlmv2hash);
+
+ free(identity);
+
+ return result;
+}
+
+/*
+ * Curl_ntlm_core_mk_ntlmv2_resp()
+ *
+ * This creates the NTLMv2 response as set in the ntlm type-3 message.
+ *
+ * Parameters:
+ *
+ * ntlmv2hash [in] - The ntlmv2 hash (16 bytes)
+ * challenge_client [in] - The client nonce (8 bytes)
+ * ntlm [in] - The ntlm data struct being used to read TargetInfo
+ and Server challenge received in the type-2 message
+ * ntresp [out] - The address where a pointer to newly allocated
+ * memory holding the NTLMv2 response.
+ * ntresp_len [out] - The length of the output message.
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_ntlm_core_mk_ntlmv2_resp(unsigned char *ntlmv2hash,
+ unsigned char *challenge_client,
+ struct ntlmdata *ntlm,
+ unsigned char **ntresp,
+ unsigned int *ntresp_len)
+{
+/* NTLMv2 response structure :
+------------------------------------------------------------------------------
+0 HMAC MD5 16 bytes
+------BLOB--------------------------------------------------------------------
+16 Signature 0x01010000
+20 Reserved long (0x00000000)
+24 Timestamp LE, 64-bit signed value representing the number of
+ tenths of a microsecond since January 1, 1601.
+32 Client Nonce 8 bytes
+40 Unknown 4 bytes
+44 Target Info N bytes (from the type-2 message)
+44+N Unknown 4 bytes
+------------------------------------------------------------------------------
+*/
+
+ unsigned int len = 0;
+ unsigned char *ptr = NULL;
+ unsigned char hmac_output[NTLM_HMAC_MD5_LEN];
+ curl_off_t tw;
+
+ CURLcode result = CURLE_OK;
+
+#if CURL_SIZEOF_CURL_OFF_T < 8
+#error "this section needs 64bit support to work"
+#endif
+
+ /* Calculate the timestamp */
+#ifdef DEBUGBUILD
+ char *force_timestamp = getenv("CURL_FORCETIME");
+ if(force_timestamp)
+ tw = CURL_OFF_T_C(11644473600) * 10000000;
+ else
+#endif
+ tw = ((curl_off_t)time(NULL) + CURL_OFF_T_C(11644473600)) * 10000000;
+
+ /* Calculate the response len */
+ len = NTLM_HMAC_MD5_LEN + NTLMv2_BLOB_LEN;
+
+ /* Allocate the response */
+ ptr = malloc(len);
+ if(!ptr)
+ return CURLE_OUT_OF_MEMORY;
+
+ memset(ptr, 0, len);
+
+ /* Create the BLOB structure */
+ snprintf((char *)ptr + NTLM_HMAC_MD5_LEN, NTLMv2_BLOB_LEN,
+ "%c%c%c%c" /* NTLMv2_BLOB_SIGNATURE */
+ "%c%c%c%c", /* Reserved = 0 */
+ NTLMv2_BLOB_SIGNATURE[0], NTLMv2_BLOB_SIGNATURE[1],
+ NTLMv2_BLOB_SIGNATURE[2], NTLMv2_BLOB_SIGNATURE[3],
+ 0, 0, 0, 0);
+
+ Curl_write64_le(tw, ptr + 24);
+ memcpy(ptr + 32, challenge_client, 8);
+ memcpy(ptr + 44, ntlm->target_info, ntlm->target_info_len);
+
+ /* Concatenate the Type 2 challenge with the BLOB and do HMAC MD5 */
+ memcpy(ptr + 8, &ntlm->nonce[0], 8);
+ result = Curl_hmac_md5(ntlmv2hash, NTLM_HMAC_MD5_LEN, ptr + 8,
+ NTLMv2_BLOB_LEN + 8, hmac_output);
+ if(result) {
+ free(ptr);
+ return result;
+ }
+
+ /* Concatenate the HMAC MD5 output with the BLOB */
+ memcpy(ptr, hmac_output, NTLM_HMAC_MD5_LEN);
+
+ /* Return the response */
+ *ntresp = ptr;
+ *ntresp_len = len;
+
+ return result;
+}
+
+/*
+ * Curl_ntlm_core_mk_lmv2_resp()
+ *
+ * This creates the LMv2 response as used in the ntlm type-3 message.
+ *
+ * Parameters:
+ *
+ * ntlmv2hash [in] - The ntlmv2 hash (16 bytes)
+ * challenge_client [in] - The client nonce (8 bytes)
+ * challenge_client [in] - The server challenge (8 bytes)
+ * lmresp [out] - The LMv2 response (24 bytes)
+ *
+ * Returns CURLE_OK on success.
+ */
+CURLcode Curl_ntlm_core_mk_lmv2_resp(unsigned char *ntlmv2hash,
+ unsigned char *challenge_client,
+ unsigned char *challenge_server,
+ unsigned char *lmresp)
+{
+ unsigned char data[16];
+ unsigned char hmac_output[16];
+ CURLcode result = CURLE_OK;
+
+ memcpy(&data[0], challenge_server, 8);
+ memcpy(&data[8], challenge_client, 8);
+
+ result = Curl_hmac_md5(ntlmv2hash, 16, &data[0], 16, hmac_output);
+ if(result)
+ return result;
+
+ /* Concatenate the HMAC MD5 output with the client nonce */
+ memcpy(lmresp, hmac_output, 16);
+ memcpy(lmresp + 16, challenge_client, 8);
+
+ return result;
+}
+
+#endif /* USE_NTLM_V2 && !USE_WINDOWS_SSPI */
+
#endif /* USE_NTRESPONSES */
-#endif /* USE_NTLM && !USE_WINDOWS_SSPI */
+#endif /* !USE_WINDOWS_SSPI || USE_WIN32_CRYPTO */
+
+#endif /* USE_NTLM */
projects / platform / upstream / curl.git / blobdiff