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| <a name="1" href="#1">1</a> <em class="jxr_comment">/*</em> |
| <a name="2" href="#2">2</a> <em class="jxr_comment"> * Licensed to the Apache Software Foundation (ASF) under one</em> |
| <a name="3" href="#3">3</a> <em class="jxr_comment"> * or more contributor license agreements. See the NOTICE file</em> |
| <a name="4" href="#4">4</a> <em class="jxr_comment"> * distributed with this work for additional information</em> |
| <a name="5" href="#5">5</a> <em class="jxr_comment"> * regarding copyright ownership. The ASF licenses this file</em> |
| <a name="6" href="#6">6</a> <em class="jxr_comment"> * to you under the Apache License, Version 2.0 (the</em> |
| <a name="7" href="#7">7</a> <em class="jxr_comment"> * "License"); you may not use this file except in compliance</em> |
| <a name="8" href="#8">8</a> <em class="jxr_comment"> * with the License. You may obtain a copy of the License at</em> |
| <a name="9" href="#9">9</a> <em class="jxr_comment"> *</em> |
| <a name="10" href="#10">10</a> <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em> |
| <a name="11" href="#11">11</a> <em class="jxr_comment"> *</em> |
| <a name="12" href="#12">12</a> <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing,</em> |
| <a name="13" href="#13">13</a> <em class="jxr_comment"> * software distributed under the License is distributed on an</em> |
| <a name="14" href="#14">14</a> <em class="jxr_comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</em> |
| <a name="15" href="#15">15</a> <em class="jxr_comment"> * KIND, either express or implied. See the License for the</em> |
| <a name="16" href="#16">16</a> <em class="jxr_comment"> * specific language governing permissions and limitations</em> |
| <a name="17" href="#17">17</a> <em class="jxr_comment"> * under the License.</em> |
| <a name="18" href="#18">18</a> <em class="jxr_comment"> *</em> |
| <a name="19" href="#19">19</a> <em class="jxr_comment"> */</em> |
| <a name="20" href="#20">20</a> <strong class="jxr_keyword">package</strong> org.apache.mina.proxy.handlers.http.ntlm; |
| <a name="21" href="#21">21</a> |
| <a name="22" href="#22">22</a> <strong class="jxr_keyword">import</strong> java.io.UnsupportedEncodingException; |
| <a name="23" href="#23">23</a> <strong class="jxr_keyword">import</strong> java.security.Key; |
| <a name="24" href="#24">24</a> <strong class="jxr_keyword">import</strong> java.security.MessageDigest; |
| <a name="25" href="#25">25</a> |
| <a name="26" href="#26">26</a> <strong class="jxr_keyword">import</strong> javax.crypto.Cipher; |
| <a name="27" href="#27">27</a> |
| <a name="28" href="#28">28</a> <strong class="jxr_keyword">import</strong> javax.crypto.spec.SecretKeySpec; |
| <a name="29" href="#29">29</a> |
| <a name="30" href="#30">30</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="31" href="#31">31</a> <em class="jxr_javadoccomment"> * NTLMResponses.java - Calculates the various Type 3 responses. Needs an MD4, MD5 and DES</em> |
| <a name="32" href="#32">32</a> <em class="jxr_javadoccomment"> * crypto provider (Please note that default provider doesn't provide MD4).</em> |
| <a name="33" href="#33">33</a> <em class="jxr_javadoccomment"> * </em> |
| <a name="34" href="#34">34</a> <em class="jxr_javadoccomment"> * Copyright (c) 2003 Eric Glass </em> |
| <a name="35" href="#35">35</a> <em class="jxr_javadoccomment"> * Permission to use, copy, modify, and distribute this document for any purpose and without </em> |
| <a name="36" href="#36">36</a> <em class="jxr_javadoccomment"> * any fee is hereby granted, provided that the above copyright notice and this list of </em> |
| <a name="37" href="#37">37</a> <em class="jxr_javadoccomment"> * conditions appear in all copies. </em> |
| <a name="38" href="#38">38</a> <em class="jxr_javadoccomment"> * @see <a href="http://curl.haxx.se/rfc/ntlm.html" target="alexandria_uri">http://curl.haxx.se/rfc/ntlm.html</a></em> |
| <a name="39" href="#39">39</a> <em class="jxr_javadoccomment"> * </em> |
| <a name="40" href="#40">40</a> <em class="jxr_javadoccomment"> * @author <a href="<a href="http://mina.apache.org" target="alexandria_uri">http://mina.apache.org</a>">Apache MINA Project</a></em> |
| <a name="41" href="#41">41</a> <em class="jxr_javadoccomment"> * @since MINA 2.0.0-M3</em> |
| <a name="42" href="#42">42</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="43" href="#43">43</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../../../../../org/apache/mina/proxy/handlers/http/ntlm/NTLMResponses.html">NTLMResponses</a> { |
| <a name="44" href="#44">44</a> |
| <a name="45" href="#45">45</a> <em class="jxr_comment">// LAN Manager magic constant used in LM Response calculation</em> |
| <a name="46" href="#46">46</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] LM_HASH_MAGIC_CONSTANT = <strong class="jxr_keyword">null</strong>; |
| <a name="47" href="#47">47</a> |
| <a name="48" href="#48">48</a> <strong class="jxr_keyword">static</strong> { |
| <a name="49" href="#49">49</a> <strong class="jxr_keyword">try</strong> { |
| <a name="50" href="#50">50</a> LM_HASH_MAGIC_CONSTANT = <span class="jxr_string">"KGS!@#$%"</span>.getBytes(<span class="jxr_string">"US-ASCII"</span>); |
| <a name="51" href="#51">51</a> } <strong class="jxr_keyword">catch</strong> (UnsupportedEncodingException e) { |
| <a name="52" href="#52">52</a> e.printStackTrace(); |
| <a name="53" href="#53">53</a> } |
| <a name="54" href="#54">54</a> } |
| <a name="55" href="#55">55</a> |
| <a name="56" href="#56">56</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="57" href="#57">57</a> <em class="jxr_javadoccomment"> * Calculates the LM Response for the given challenge, using the specified</em> |
| <a name="58" href="#58">58</a> <em class="jxr_javadoccomment"> * password.</em> |
| <a name="59" href="#59">59</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="60" href="#60">60</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="61" href="#61">61</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="62" href="#62">62</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="63" href="#63">63</a> <em class="jxr_javadoccomment"> * @return The LM Response.</em> |
| <a name="64" href="#64">64</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="65" href="#65">65</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getLMResponse(String password, byte[] challenge) |
| <a name="66" href="#66">66</a> <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="67" href="#67">67</a> byte[] lmHash = lmHash(password); |
| <a name="68" href="#68">68</a> <strong class="jxr_keyword">return</strong> lmResponse(lmHash, challenge); |
| <a name="69" href="#69">69</a> } |
| <a name="70" href="#70">70</a> |
| <a name="71" href="#71">71</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="72" href="#72">72</a> <em class="jxr_javadoccomment"> * Calculates the NTLM Response for the given challenge, using the</em> |
| <a name="73" href="#73">73</a> <em class="jxr_javadoccomment"> * specified password.</em> |
| <a name="74" href="#74">74</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="75" href="#75">75</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="76" href="#76">76</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="77" href="#77">77</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="78" href="#78">78</a> <em class="jxr_javadoccomment"> * @return The NTLM Response.</em> |
| <a name="79" href="#79">79</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="80" href="#80">80</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getNTLMResponse(String password, byte[] challenge) |
| <a name="81" href="#81">81</a> <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="82" href="#82">82</a> byte[] ntlmHash = ntlmHash(password); |
| <a name="83" href="#83">83</a> <strong class="jxr_keyword">return</strong> lmResponse(ntlmHash, challenge); |
| <a name="84" href="#84">84</a> } |
| <a name="85" href="#85">85</a> |
| <a name="86" href="#86">86</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="87" href="#87">87</a> <em class="jxr_javadoccomment"> * Calculates the NTLMv2 Response for the given challenge, using the</em> |
| <a name="88" href="#88">88</a> <em class="jxr_javadoccomment"> * specified authentication target, username, password, target information</em> |
| <a name="89" href="#89">89</a> <em class="jxr_javadoccomment"> * block, and client nonce.</em> |
| <a name="90" href="#90">90</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="91" href="#91">91</a> <em class="jxr_javadoccomment"> * @param target The authentication target (i.e., domain).</em> |
| <a name="92" href="#92">92</a> <em class="jxr_javadoccomment"> * @param user The username. </em> |
| <a name="93" href="#93">93</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="94" href="#94">94</a> <em class="jxr_javadoccomment"> * @param targetInformation The target information block from the Type 2</em> |
| <a name="95" href="#95">95</a> <em class="jxr_javadoccomment"> * message.</em> |
| <a name="96" href="#96">96</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="97" href="#97">97</a> <em class="jxr_javadoccomment"> * @param clientNonce The random 8-byte client nonce.</em> |
| <a name="98" href="#98">98</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="99" href="#99">99</a> <em class="jxr_javadoccomment"> * @return The NTLMv2 Response.</em> |
| <a name="100" href="#100">100</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="101" href="#101">101</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getNTLMv2Response(String target, String user, |
| <a name="102" href="#102">102</a> String password, byte[] targetInformation, byte[] challenge, |
| <a name="103" href="#103">103</a> byte[] clientNonce) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="104" href="#104">104</a> |
| <a name="105" href="#105">105</a> <strong class="jxr_keyword">return</strong> getNTLMv2Response(target, user, password, targetInformation, |
| <a name="106" href="#106">106</a> challenge, clientNonce, System.currentTimeMillis()); |
| <a name="107" href="#107">107</a> } |
| <a name="108" href="#108">108</a> |
| <a name="109" href="#109">109</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="110" href="#110">110</a> <em class="jxr_javadoccomment"> * Calculates the NTLMv2 Response for the given challenge, using the</em> |
| <a name="111" href="#111">111</a> <em class="jxr_javadoccomment"> * specified authentication target, username, password, target information</em> |
| <a name="112" href="#112">112</a> <em class="jxr_javadoccomment"> * block, and client nonce.</em> |
| <a name="113" href="#113">113</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="114" href="#114">114</a> <em class="jxr_javadoccomment"> * @param target The authentication target (i.e., domain).</em> |
| <a name="115" href="#115">115</a> <em class="jxr_javadoccomment"> * @param user The username. </em> |
| <a name="116" href="#116">116</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="117" href="#117">117</a> <em class="jxr_javadoccomment"> * @param targetInformation The target information block from the Type 2</em> |
| <a name="118" href="#118">118</a> <em class="jxr_javadoccomment"> * message.</em> |
| <a name="119" href="#119">119</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="120" href="#120">120</a> <em class="jxr_javadoccomment"> * @param clientNonce The random 8-byte client nonce.</em> |
| <a name="121" href="#121">121</a> <em class="jxr_javadoccomment"> * @param time The time stamp. </em> |
| <a name="122" href="#122">122</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="123" href="#123">123</a> <em class="jxr_javadoccomment"> * @return The NTLMv2 Response.</em> |
| <a name="124" href="#124">124</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="125" href="#125">125</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getNTLMv2Response(String target, String user, |
| <a name="126" href="#126">126</a> String password, byte[] targetInformation, byte[] challenge, |
| <a name="127" href="#127">127</a> byte[] clientNonce, <strong class="jxr_keyword">long</strong> time) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="128" href="#128">128</a> byte[] ntlmv2Hash = ntlmv2Hash(target, user, password); |
| <a name="129" href="#129">129</a> byte[] blob = createBlob(targetInformation, clientNonce, time); |
| <a name="130" href="#130">130</a> <strong class="jxr_keyword">return</strong> lmv2Response(ntlmv2Hash, blob, challenge); |
| <a name="131" href="#131">131</a> } |
| <a name="132" href="#132">132</a> |
| <a name="133" href="#133">133</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="134" href="#134">134</a> <em class="jxr_javadoccomment"> * Calculates the LMv2 Response for the given challenge, using the</em> |
| <a name="135" href="#135">135</a> <em class="jxr_javadoccomment"> * specified authentication target, username, password, and client</em> |
| <a name="136" href="#136">136</a> <em class="jxr_javadoccomment"> * challenge.</em> |
| <a name="137" href="#137">137</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="138" href="#138">138</a> <em class="jxr_javadoccomment"> * @param target The authentication target (i.e., domain).</em> |
| <a name="139" href="#139">139</a> <em class="jxr_javadoccomment"> * @param user The username.</em> |
| <a name="140" href="#140">140</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="141" href="#141">141</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="142" href="#142">142</a> <em class="jxr_javadoccomment"> * @param clientNonce The random 8-byte client nonce.</em> |
| <a name="143" href="#143">143</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="144" href="#144">144</a> <em class="jxr_javadoccomment"> * @return The LMv2 Response. </em> |
| <a name="145" href="#145">145</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="146" href="#146">146</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getLMv2Response(String target, String user, |
| <a name="147" href="#147">147</a> String password, byte[] challenge, byte[] clientNonce) |
| <a name="148" href="#148">148</a> <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="149" href="#149">149</a> byte[] ntlmv2Hash = ntlmv2Hash(target, user, password); |
| <a name="150" href="#150">150</a> <strong class="jxr_keyword">return</strong> lmv2Response(ntlmv2Hash, clientNonce, challenge); |
| <a name="151" href="#151">151</a> } |
| <a name="152" href="#152">152</a> |
| <a name="153" href="#153">153</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="154" href="#154">154</a> <em class="jxr_javadoccomment"> * Calculates the NTLM2 Session Response for the given challenge, using the</em> |
| <a name="155" href="#155">155</a> <em class="jxr_javadoccomment"> * specified password and client nonce.</em> |
| <a name="156" href="#156">156</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="157" href="#157">157</a> <em class="jxr_javadoccomment"> * @param password The user's password.</em> |
| <a name="158" href="#158">158</a> <em class="jxr_javadoccomment"> * @param challenge The Type 2 challenge from the server.</em> |
| <a name="159" href="#159">159</a> <em class="jxr_javadoccomment"> * @param clientNonce The random 8-byte client nonce.</em> |
| <a name="160" href="#160">160</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="161" href="#161">161</a> <em class="jxr_javadoccomment"> * @return The NTLM2 Session Response. This is placed in the NTLM</em> |
| <a name="162" href="#162">162</a> <em class="jxr_javadoccomment"> * response field of the Type 3 message; the LM response field contains</em> |
| <a name="163" href="#163">163</a> <em class="jxr_javadoccomment"> * the client nonce, null-padded to 24 bytes.</em> |
| <a name="164" href="#164">164</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="165" href="#165">165</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] getNTLM2SessionResponse(String password, |
| <a name="166" href="#166">166</a> byte[] challenge, byte[] clientNonce) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="167" href="#167">167</a> byte[] ntlmHash = ntlmHash(password); |
| <a name="168" href="#168">168</a> MessageDigest md5 = MessageDigest.getInstance(<span class="jxr_string">"MD5"</span>); |
| <a name="169" href="#169">169</a> md5.update(challenge); |
| <a name="170" href="#170">170</a> md5.update(clientNonce); |
| <a name="171" href="#171">171</a> byte[] sessionHash = <strong class="jxr_keyword">new</strong> byte[8]; |
| <a name="172" href="#172">172</a> System.arraycopy(md5.digest(), 0, sessionHash, 0, 8); |
| <a name="173" href="#173">173</a> <strong class="jxr_keyword">return</strong> lmResponse(ntlmHash, sessionHash); |
| <a name="174" href="#174">174</a> } |
| <a name="175" href="#175">175</a> |
| <a name="176" href="#176">176</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="177" href="#177">177</a> <em class="jxr_javadoccomment"> * Creates the LM Hash of the user's password.</em> |
| <a name="178" href="#178">178</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="179" href="#179">179</a> <em class="jxr_javadoccomment"> * @param password The password.</em> |
| <a name="180" href="#180">180</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="181" href="#181">181</a> <em class="jxr_javadoccomment"> * @return The LM Hash of the given password, used in the calculation</em> |
| <a name="182" href="#182">182</a> <em class="jxr_javadoccomment"> * of the LM Response.</em> |
| <a name="183" href="#183">183</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="184" href="#184">184</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] lmHash(String password) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="185" href="#185">185</a> byte[] oemPassword = password.toUpperCase().getBytes(<span class="jxr_string">"US-ASCII"</span>); |
| <a name="186" href="#186">186</a> <strong class="jxr_keyword">int</strong> length = Math.min(oemPassword.length, 14); |
| <a name="187" href="#187">187</a> byte[] keyBytes = <strong class="jxr_keyword">new</strong> byte[14]; |
| <a name="188" href="#188">188</a> System.arraycopy(oemPassword, 0, keyBytes, 0, length); |
| <a name="189" href="#189">189</a> Key lowKey = createDESKey(keyBytes, 0); |
| <a name="190" href="#190">190</a> Key highKey = createDESKey(keyBytes, 7); |
| <a name="191" href="#191">191</a> Cipher des = Cipher.getInstance(<span class="jxr_string">"DES/ECB/NoPadding"</span>); |
| <a name="192" href="#192">192</a> des.init(Cipher.ENCRYPT_MODE, lowKey); |
| <a name="193" href="#193">193</a> byte[] lowHash = des.doFinal(LM_HASH_MAGIC_CONSTANT); |
| <a name="194" href="#194">194</a> des.init(Cipher.ENCRYPT_MODE, highKey); |
| <a name="195" href="#195">195</a> byte[] highHash = des.doFinal(LM_HASH_MAGIC_CONSTANT); |
| <a name="196" href="#196">196</a> byte[] lmHash = <strong class="jxr_keyword">new</strong> byte[16]; |
| <a name="197" href="#197">197</a> System.arraycopy(lowHash, 0, lmHash, 0, 8); |
| <a name="198" href="#198">198</a> System.arraycopy(highHash, 0, lmHash, 8, 8); |
| <a name="199" href="#199">199</a> <strong class="jxr_keyword">return</strong> lmHash; |
| <a name="200" href="#200">200</a> } |
| <a name="201" href="#201">201</a> |
| <a name="202" href="#202">202</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="203" href="#203">203</a> <em class="jxr_javadoccomment"> * Creates the NTLM Hash of the user's password.</em> |
| <a name="204" href="#204">204</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="205" href="#205">205</a> <em class="jxr_javadoccomment"> * @param password The password.</em> |
| <a name="206" href="#206">206</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="207" href="#207">207</a> <em class="jxr_javadoccomment"> * @return The NTLM Hash of the given password, used in the calculation</em> |
| <a name="208" href="#208">208</a> <em class="jxr_javadoccomment"> * of the NTLM Response and the NTLMv2 and LMv2 Hashes.</em> |
| <a name="209" href="#209">209</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="210" href="#210">210</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] ntlmHash(String password) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="211" href="#211">211</a> byte[] unicodePassword = password.getBytes(<span class="jxr_string">"UnicodeLittleUnmarked"</span>); |
| <a name="212" href="#212">212</a> MessageDigest md4 = MessageDigest.getInstance(<span class="jxr_string">"MD4"</span>); |
| <a name="213" href="#213">213</a> <strong class="jxr_keyword">return</strong> md4.digest(unicodePassword); |
| <a name="214" href="#214">214</a> } |
| <a name="215" href="#215">215</a> |
| <a name="216" href="#216">216</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="217" href="#217">217</a> <em class="jxr_javadoccomment"> * Creates the NTLMv2 Hash of the user's password.</em> |
| <a name="218" href="#218">218</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="219" href="#219">219</a> <em class="jxr_javadoccomment"> * @param target The authentication target (i.e., domain).</em> |
| <a name="220" href="#220">220</a> <em class="jxr_javadoccomment"> * @param user The username.</em> |
| <a name="221" href="#221">221</a> <em class="jxr_javadoccomment"> * @param password The password.</em> |
| <a name="222" href="#222">222</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="223" href="#223">223</a> <em class="jxr_javadoccomment"> * @return The NTLMv2 Hash, used in the calculation of the NTLMv2</em> |
| <a name="224" href="#224">224</a> <em class="jxr_javadoccomment"> * and LMv2 Responses. </em> |
| <a name="225" href="#225">225</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="226" href="#226">226</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] ntlmv2Hash(String target, String user, String password) |
| <a name="227" href="#227">227</a> <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="228" href="#228">228</a> byte[] ntlmHash = ntlmHash(password); |
| <a name="229" href="#229">229</a> String identity = user.toUpperCase() + target; |
| <a name="230" href="#230">230</a> <strong class="jxr_keyword">return</strong> hmacMD5(identity.getBytes(<span class="jxr_string">"UnicodeLittleUnmarked"</span>), ntlmHash); |
| <a name="231" href="#231">231</a> } |
| <a name="232" href="#232">232</a> |
| <a name="233" href="#233">233</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="234" href="#234">234</a> <em class="jxr_javadoccomment"> * Creates the LM Response from the given hash and Type 2 challenge.</em> |
| <a name="235" href="#235">235</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="236" href="#236">236</a> <em class="jxr_javadoccomment"> * @param hash The LM or NTLM Hash.</em> |
| <a name="237" href="#237">237</a> <em class="jxr_javadoccomment"> * @param challenge The server challenge from the Type 2 message.</em> |
| <a name="238" href="#238">238</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="239" href="#239">239</a> <em class="jxr_javadoccomment"> * @return The response (either LM or NTLM, depending on the provided</em> |
| <a name="240" href="#240">240</a> <em class="jxr_javadoccomment"> * hash).</em> |
| <a name="241" href="#241">241</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="242" href="#242">242</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] lmResponse(byte[] hash, byte[] challenge) |
| <a name="243" href="#243">243</a> <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="244" href="#244">244</a> byte[] keyBytes = <strong class="jxr_keyword">new</strong> byte[21]; |
| <a name="245" href="#245">245</a> System.arraycopy(hash, 0, keyBytes, 0, 16); |
| <a name="246" href="#246">246</a> Key lowKey = createDESKey(keyBytes, 0); |
| <a name="247" href="#247">247</a> Key middleKey = createDESKey(keyBytes, 7); |
| <a name="248" href="#248">248</a> Key highKey = createDESKey(keyBytes, 14); |
| <a name="249" href="#249">249</a> Cipher des = Cipher.getInstance(<span class="jxr_string">"DES/ECB/NoPadding"</span>); |
| <a name="250" href="#250">250</a> des.init(Cipher.ENCRYPT_MODE, lowKey); |
| <a name="251" href="#251">251</a> byte[] lowResponse = des.doFinal(challenge); |
| <a name="252" href="#252">252</a> des.init(Cipher.ENCRYPT_MODE, middleKey); |
| <a name="253" href="#253">253</a> byte[] middleResponse = des.doFinal(challenge); |
| <a name="254" href="#254">254</a> des.init(Cipher.ENCRYPT_MODE, highKey); |
| <a name="255" href="#255">255</a> byte[] highResponse = des.doFinal(challenge); |
| <a name="256" href="#256">256</a> byte[] lmResponse = <strong class="jxr_keyword">new</strong> byte[24]; |
| <a name="257" href="#257">257</a> System.arraycopy(lowResponse, 0, lmResponse, 0, 8); |
| <a name="258" href="#258">258</a> System.arraycopy(middleResponse, 0, lmResponse, 8, 8); |
| <a name="259" href="#259">259</a> System.arraycopy(highResponse, 0, lmResponse, 16, 8); |
| <a name="260" href="#260">260</a> <strong class="jxr_keyword">return</strong> lmResponse; |
| <a name="261" href="#261">261</a> } |
| <a name="262" href="#262">262</a> |
| <a name="263" href="#263">263</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="264" href="#264">264</a> <em class="jxr_javadoccomment"> * Creates the LMv2 Response from the given hash, client data, and</em> |
| <a name="265" href="#265">265</a> <em class="jxr_javadoccomment"> * Type 2 challenge.</em> |
| <a name="266" href="#266">266</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="267" href="#267">267</a> <em class="jxr_javadoccomment"> * @param hash The NTLMv2 Hash.</em> |
| <a name="268" href="#268">268</a> <em class="jxr_javadoccomment"> * @param clientData The client data (blob or client nonce).</em> |
| <a name="269" href="#269">269</a> <em class="jxr_javadoccomment"> * @param challenge The server challenge from the Type 2 message.</em> |
| <a name="270" href="#270">270</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="271" href="#271">271</a> <em class="jxr_javadoccomment"> * @return The response (either NTLMv2 or LMv2, depending on the</em> |
| <a name="272" href="#272">272</a> <em class="jxr_javadoccomment"> * client data).</em> |
| <a name="273" href="#273">273</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="274" href="#274">274</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] lmv2Response(byte[] hash, byte[] clientData, |
| <a name="275" href="#275">275</a> byte[] challenge) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="276" href="#276">276</a> byte[] data = <strong class="jxr_keyword">new</strong> byte[challenge.length + clientData.length]; |
| <a name="277" href="#277">277</a> System.arraycopy(challenge, 0, data, 0, challenge.length); |
| <a name="278" href="#278">278</a> System.arraycopy(clientData, 0, data, challenge.length, |
| <a name="279" href="#279">279</a> clientData.length); |
| <a name="280" href="#280">280</a> byte[] mac = hmacMD5(data, hash); |
| <a name="281" href="#281">281</a> byte[] lmv2Response = <strong class="jxr_keyword">new</strong> byte[mac.length + clientData.length]; |
| <a name="282" href="#282">282</a> System.arraycopy(mac, 0, lmv2Response, 0, mac.length); |
| <a name="283" href="#283">283</a> System.arraycopy(clientData, 0, lmv2Response, mac.length, |
| <a name="284" href="#284">284</a> clientData.length); |
| <a name="285" href="#285">285</a> <strong class="jxr_keyword">return</strong> lmv2Response; |
| <a name="286" href="#286">286</a> } |
| <a name="287" href="#287">287</a> |
| <a name="288" href="#288">288</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="289" href="#289">289</a> <em class="jxr_javadoccomment"> * Creates the NTLMv2 blob from the given target information block and</em> |
| <a name="290" href="#290">290</a> <em class="jxr_javadoccomment"> * client nonce.</em> |
| <a name="291" href="#291">291</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="292" href="#292">292</a> <em class="jxr_javadoccomment"> * @param targetInformation The target information block from the Type 2</em> |
| <a name="293" href="#293">293</a> <em class="jxr_javadoccomment"> * message.</em> |
| <a name="294" href="#294">294</a> <em class="jxr_javadoccomment"> * @param clientNonce The random 8-byte client nonce.</em> |
| <a name="295" href="#295">295</a> <em class="jxr_javadoccomment"> * @param time the time stamp.</em> |
| <a name="296" href="#296">296</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="297" href="#297">297</a> <em class="jxr_javadoccomment"> * @return The blob, used in the calculation of the NTLMv2 Response.</em> |
| <a name="298" href="#298">298</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="299" href="#299">299</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> byte[] createBlob(byte[] targetInformation, |
| <a name="300" href="#300">300</a> byte[] clientNonce, <strong class="jxr_keyword">long</strong> time) { |
| <a name="301" href="#301">301</a> byte[] blobSignature = <strong class="jxr_keyword">new</strong> byte[] { (byte) 0x01, (byte) 0x01, |
| <a name="302" href="#302">302</a> (byte) 0x00, (byte) 0x00 }; |
| <a name="303" href="#303">303</a> byte[] reserved = <strong class="jxr_keyword">new</strong> byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, |
| <a name="304" href="#304">304</a> (byte) 0x00 }; |
| <a name="305" href="#305">305</a> byte[] unknown1 = <strong class="jxr_keyword">new</strong> byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, |
| <a name="306" href="#306">306</a> (byte) 0x00 }; |
| <a name="307" href="#307">307</a> byte[] unknown2 = <strong class="jxr_keyword">new</strong> byte[] { (byte) 0x00, (byte) 0x00, (byte) 0x00, |
| <a name="308" href="#308">308</a> (byte) 0x00 }; |
| <a name="309" href="#309">309</a> time += 11644473600000l; <em class="jxr_comment">// milliseconds from January 1, 1601 -> epoch.</em> |
| <a name="310" href="#310">310</a> time *= 10000; <em class="jxr_comment">// tenths of a microsecond.</em> |
| <a name="311" href="#311">311</a> <em class="jxr_comment">// convert to little-endian byte array.</em> |
| <a name="312" href="#312">312</a> byte[] timestamp = <strong class="jxr_keyword">new</strong> byte[8]; |
| <a name="313" href="#313">313</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < 8; i++) { |
| <a name="314" href="#314">314</a> timestamp[i] = (byte) time; |
| <a name="315" href="#315">315</a> time >>>= 8; |
| <a name="316" href="#316">316</a> } |
| <a name="317" href="#317">317</a> byte[] blob = <strong class="jxr_keyword">new</strong> byte[blobSignature.length + reserved.length |
| <a name="318" href="#318">318</a> + timestamp.length + clientNonce.length + unknown1.length |
| <a name="319" href="#319">319</a> + targetInformation.length + unknown2.length]; |
| <a name="320" href="#320">320</a> <strong class="jxr_keyword">int</strong> offset = 0; |
| <a name="321" href="#321">321</a> System.arraycopy(blobSignature, 0, blob, offset, blobSignature.length); |
| <a name="322" href="#322">322</a> offset += blobSignature.length; |
| <a name="323" href="#323">323</a> System.arraycopy(reserved, 0, blob, offset, reserved.length); |
| <a name="324" href="#324">324</a> offset += reserved.length; |
| <a name="325" href="#325">325</a> System.arraycopy(timestamp, 0, blob, offset, timestamp.length); |
| <a name="326" href="#326">326</a> offset += timestamp.length; |
| <a name="327" href="#327">327</a> System.arraycopy(clientNonce, 0, blob, offset, clientNonce.length); |
| <a name="328" href="#328">328</a> offset += clientNonce.length; |
| <a name="329" href="#329">329</a> System.arraycopy(unknown1, 0, blob, offset, unknown1.length); |
| <a name="330" href="#330">330</a> offset += unknown1.length; |
| <a name="331" href="#331">331</a> System.arraycopy(targetInformation, 0, blob, offset, |
| <a name="332" href="#332">332</a> targetInformation.length); |
| <a name="333" href="#333">333</a> offset += targetInformation.length; |
| <a name="334" href="#334">334</a> System.arraycopy(unknown2, 0, blob, offset, unknown2.length); |
| <a name="335" href="#335">335</a> <strong class="jxr_keyword">return</strong> blob; |
| <a name="336" href="#336">336</a> } |
| <a name="337" href="#337">337</a> |
| <a name="338" href="#338">338</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="339" href="#339">339</a> <em class="jxr_javadoccomment"> * Calculates the HMAC-MD5 hash of the given data using the specified</em> |
| <a name="340" href="#340">340</a> <em class="jxr_javadoccomment"> * hashing key.</em> |
| <a name="341" href="#341">341</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="342" href="#342">342</a> <em class="jxr_javadoccomment"> * @param data The data for which the hash will be calculated. </em> |
| <a name="343" href="#343">343</a> <em class="jxr_javadoccomment"> * @param key The hashing key.</em> |
| <a name="344" href="#344">344</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="345" href="#345">345</a> <em class="jxr_javadoccomment"> * @return The HMAC-MD5 hash of the given data.</em> |
| <a name="346" href="#346">346</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="347" href="#347">347</a> <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> byte[] hmacMD5(byte[] data, byte[] key) <strong class="jxr_keyword">throws</strong> Exception { |
| <a name="348" href="#348">348</a> byte[] ipad = <strong class="jxr_keyword">new</strong> byte[64]; |
| <a name="349" href="#349">349</a> byte[] opad = <strong class="jxr_keyword">new</strong> byte[64]; |
| <a name="350" href="#350">350</a> |
| <a name="351" href="#351">351</a> <em class="jxr_comment">// Stores key in pads and XOR it with ipad and opad values</em> |
| <a name="352" href="#352">352</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < 64; i++) { |
| <a name="353" href="#353">353</a> <strong class="jxr_keyword">if</strong> (i < key.length) { |
| <a name="354" href="#354">354</a> ipad[i] = (byte) (key[i] ^ 0x36); |
| <a name="355" href="#355">355</a> opad[i] = (byte) (key[i] ^ 0x5c); |
| <a name="356" href="#356">356</a> } <strong class="jxr_keyword">else</strong> { |
| <a name="357" href="#357">357</a> ipad[i] = 0x36; |
| <a name="358" href="#358">358</a> opad[i] = 0x5c; |
| <a name="359" href="#359">359</a> } |
| <a name="360" href="#360">360</a> } |
| <a name="361" href="#361">361</a> |
| <a name="362" href="#362">362</a> byte[] content = <strong class="jxr_keyword">new</strong> byte[data.length + 64]; |
| <a name="363" href="#363">363</a> System.arraycopy(ipad, 0, content, 0, 64); |
| <a name="364" href="#364">364</a> System.arraycopy(data, 0, content, 64, data.length); |
| <a name="365" href="#365">365</a> MessageDigest md5 = MessageDigest.getInstance(<span class="jxr_string">"MD5"</span>); |
| <a name="366" href="#366">366</a> data = md5.digest(content); |
| <a name="367" href="#367">367</a> content = <strong class="jxr_keyword">new</strong> byte[data.length + 64]; |
| <a name="368" href="#368">368</a> System.arraycopy(opad, 0, content, 0, 64); |
| <a name="369" href="#369">369</a> System.arraycopy(data, 0, content, 64, data.length); |
| <a name="370" href="#370">370</a> <strong class="jxr_keyword">return</strong> md5.digest(content); |
| <a name="371" href="#371">371</a> } |
| <a name="372" href="#372">372</a> |
| <a name="373" href="#373">373</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="374" href="#374">374</a> <em class="jxr_javadoccomment"> * Creates a DES encryption key from the given key material.</em> |
| <a name="375" href="#375">375</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="376" href="#376">376</a> <em class="jxr_javadoccomment"> * @param bytes A byte array containing the DES key material.</em> |
| <a name="377" href="#377">377</a> <em class="jxr_javadoccomment"> * @param offset The offset in the given byte array at which</em> |
| <a name="378" href="#378">378</a> <em class="jxr_javadoccomment"> * the 7-byte key material starts.</em> |
| <a name="379" href="#379">379</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="380" href="#380">380</a> <em class="jxr_javadoccomment"> * @return A DES encryption key created from the key material</em> |
| <a name="381" href="#381">381</a> <em class="jxr_javadoccomment"> * starting at the specified offset in the given byte array.</em> |
| <a name="382" href="#382">382</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="383" href="#383">383</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> Key createDESKey(byte[] bytes, <strong class="jxr_keyword">int</strong> offset) { |
| <a name="384" href="#384">384</a> byte[] keyBytes = <strong class="jxr_keyword">new</strong> byte[7]; |
| <a name="385" href="#385">385</a> System.arraycopy(bytes, offset, keyBytes, 0, 7); |
| <a name="386" href="#386">386</a> byte[] material = <strong class="jxr_keyword">new</strong> byte[8]; |
| <a name="387" href="#387">387</a> material[0] = keyBytes[0]; |
| <a name="388" href="#388">388</a> material[1] = (byte) (keyBytes[0] << 7 | (keyBytes[1] & 0xff) >>> 1); |
| <a name="389" href="#389">389</a> material[2] = (byte) (keyBytes[1] << 6 | (keyBytes[2] & 0xff) >>> 2); |
| <a name="390" href="#390">390</a> material[3] = (byte) (keyBytes[2] << 5 | (keyBytes[3] & 0xff) >>> 3); |
| <a name="391" href="#391">391</a> material[4] = (byte) (keyBytes[3] << 4 | (keyBytes[4] & 0xff) >>> 4); |
| <a name="392" href="#392">392</a> material[5] = (byte) (keyBytes[4] << 3 | (keyBytes[5] & 0xff) >>> 5); |
| <a name="393" href="#393">393</a> material[6] = (byte) (keyBytes[5] << 2 | (keyBytes[6] & 0xff) >>> 6); |
| <a name="394" href="#394">394</a> material[7] = (byte) (keyBytes[6] << 1); |
| <a name="395" href="#395">395</a> oddParity(material); |
| <a name="396" href="#396">396</a> <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> SecretKeySpec(material, <span class="jxr_string">"DES"</span>); |
| <a name="397" href="#397">397</a> } |
| <a name="398" href="#398">398</a> |
| <a name="399" href="#399">399</a> <em class="jxr_javadoccomment">/**</em> |
| <a name="400" href="#400">400</a> <em class="jxr_javadoccomment"> * Applies odd parity to the given byte array.</em> |
| <a name="401" href="#401">401</a> <em class="jxr_javadoccomment"> *</em> |
| <a name="402" href="#402">402</a> <em class="jxr_javadoccomment"> * @param bytes The data whose parity bits are to be adjusted for</em> |
| <a name="403" href="#403">403</a> <em class="jxr_javadoccomment"> * odd parity.</em> |
| <a name="404" href="#404">404</a> <em class="jxr_javadoccomment"> */</em> |
| <a name="405" href="#405">405</a> <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> oddParity(byte[] bytes) { |
| <a name="406" href="#406">406</a> <strong class="jxr_keyword">for</strong> (<strong class="jxr_keyword">int</strong> i = 0; i < bytes.length; i++) { |
| <a name="407" href="#407">407</a> byte b = bytes[i]; |
| <a name="408" href="#408">408</a> <strong class="jxr_keyword">boolean</strong> needsParity = (((b >>> 7) ^ (b >>> 6) ^ (b >>> 5) |
| <a name="409" href="#409">409</a> ^ (b >>> 4) ^ (b >>> 3) ^ (b >>> 2) ^ (b >>> 1)) & 0x01) == 0; |
| <a name="410" href="#410">410</a> <strong class="jxr_keyword">if</strong> (needsParity) { |
| <a name="411" href="#411">411</a> bytes[i] |= (byte) 0x01; |
| <a name="412" href="#412">412</a> } <strong class="jxr_keyword">else</strong> { |
| <a name="413" href="#413">413</a> bytes[i] &= (byte) 0xfe; |
| <a name="414" href="#414">414</a> } |
| <a name="415" href="#415">415</a> } |
| <a name="416" href="#416">416</a> } |
| <a name="417" href="#417">417</a> } |
| </pre> |
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