author | msheppar |
Sat, 19 Jan 2013 08:39:20 +0000 | |
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parent 9035 | 1255eb81cc2f |
child 23010 | 6dadb192ad81 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.net.www.protocol.http.ntlm; |
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import com.sun.security.ntlm.Client; |
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import com.sun.security.ntlm.NTLMException; |
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import java.io.IOException; |
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import java.net.InetAddress; |
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import java.net.PasswordAuthentication; |
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import java.net.UnknownHostException; |
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import java.net.URL; |
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import java.security.GeneralSecurityException; |
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import java.util.Base64; |
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import sun.net.www.HeaderParser; |
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import sun.net.www.protocol.http.AuthenticationInfo; |
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import sun.net.www.protocol.http.AuthScheme; |
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import sun.net.www.protocol.http.HttpURLConnection; |
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/** |
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* NTLMAuthentication: |
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* |
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* @author Michael McMahon |
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*/ |
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/* |
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* NTLM authentication is nominally based on the framework defined in RFC2617, |
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* but differs from the standard (Basic & Digest) schemes as follows: |
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* |
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* 1. A complete authentication requires three request/response transactions |
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* as shown below: |
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* REQ -------------------------------> |
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* <---- 401 (signalling NTLM) -------- |
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* |
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* REQ (with type1 NTLM msg) ---------> |
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* <---- 401 (with type 2 NTLM msg) --- |
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* |
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* REQ (with type3 NTLM msg) ---------> |
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* <---- OK --------------------------- |
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* |
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* 2. The scope of the authentication is the TCP connection (which must be kept-alive) |
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* after the type2 response is received. This means that NTLM does not work end-to-end |
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* through a proxy, rather between client and proxy, or between client and server (with no proxy) |
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*/ |
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public class NTLMAuthentication extends AuthenticationInfo { |
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private static final long serialVersionUID = 170L; |
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private static final NTLMAuthenticationCallback NTLMAuthCallback = |
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NTLMAuthenticationCallback.getNTLMAuthenticationCallback(); |
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private String hostname; |
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private static String defaultDomain; /* Domain to use if not specified by user */ |
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static { |
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defaultDomain = java.security.AccessController.doPrivileged( |
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new sun.security.action.GetPropertyAction("http.auth.ntlm.domain", |
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"domain")); |
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}; |
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public static boolean supportsTransparentAuth () { |
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return false; |
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} |
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/** |
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* Returns true if the given site is trusted, i.e. we can try |
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* transparent Authentication. |
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*/ |
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public static boolean isTrustedSite(URL url) { |
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return NTLMAuthCallback.isTrustedSite(url); |
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} |
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private void init0() { |
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hostname = java.security.AccessController.doPrivileged( |
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new java.security.PrivilegedAction<String>() { |
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public String run() { |
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String localhost; |
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try { |
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localhost = InetAddress.getLocalHost().getHostName().toUpperCase(); |
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} catch (UnknownHostException e) { |
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localhost = "localhost"; |
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} |
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return localhost; |
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} |
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}); |
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int x = hostname.indexOf ('.'); |
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if (x != -1) { |
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hostname = hostname.substring (0, x); |
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} |
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}; |
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PasswordAuthentication pw; |
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Client client; |
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/** |
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* Create a NTLMAuthentication: |
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* Username may be specified as domain<BACKSLASH>username in the application Authenticator. |
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* If this notation is not used, then the domain will be taken |
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* from a system property: "http.auth.ntlm.domain". |
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*/ |
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public NTLMAuthentication(boolean isProxy, URL url, PasswordAuthentication pw) { |
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super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, |
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AuthScheme.NTLM, |
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url, |
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""); |
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init (pw); |
131 |
} |
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private void init (PasswordAuthentication pw) { |
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String username; |
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String ntdomain; |
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char[] password; |
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this.pw = pw; |
138 |
String s = pw.getUserName(); |
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int i = s.indexOf ('\\'); |
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if (i == -1) { |
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username = s; |
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ntdomain = defaultDomain; |
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} else { |
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ntdomain = s.substring (0, i).toUpperCase(); |
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username = s.substring (i+1); |
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} |
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password = pw.getPassword(); |
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init0(); |
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try { |
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client = new Client(System.getProperty("ntlm.version"), hostname, |
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username, ntdomain, password); |
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} catch (NTLMException ne) { |
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try { |
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client = new Client(null, hostname, username, ntdomain, password); |
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} catch (NTLMException ne2) { |
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// Will never happen |
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throw new AssertionError("Really?"); |
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} |
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} |
2 | 160 |
} |
161 |
||
162 |
/** |
|
163 |
* Constructor used for proxy entries |
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164 |
*/ |
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165 |
public NTLMAuthentication(boolean isProxy, String host, int port, |
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166 |
PasswordAuthentication pw) { |
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super(isProxy ? PROXY_AUTHENTICATION : SERVER_AUTHENTICATION, |
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AuthScheme.NTLM, |
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host, |
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port, |
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""); |
2 | 172 |
init (pw); |
173 |
} |
|
174 |
||
175 |
/** |
|
176 |
* @return true if this authentication supports preemptive authorization |
|
177 |
*/ |
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@Override |
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179 |
public boolean supportsPreemptiveAuthorization() { |
2 | 180 |
return false; |
181 |
} |
|
182 |
||
183 |
/** |
|
184 |
* Not supported. Must use the setHeaders() method |
|
185 |
*/ |
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@Override |
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187 |
public String getHeaderValue(URL url, String method) { |
2 | 188 |
throw new RuntimeException ("getHeaderValue not supported"); |
189 |
} |
|
190 |
||
191 |
/** |
|
192 |
* Check if the header indicates that the current auth. parameters are stale. |
|
193 |
* If so, then replace the relevant field with the new value |
|
194 |
* and return true. Otherwise return false. |
|
195 |
* returning true means the request can be retried with the same userid/password |
|
196 |
* returning false means we have to go back to the user to ask for a new |
|
197 |
* username password. |
|
198 |
*/ |
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@Override |
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200 |
public boolean isAuthorizationStale (String header) { |
2 | 201 |
return false; /* should not be called for ntlm */ |
202 |
} |
|
203 |
||
204 |
/** |
|
205 |
* Set header(s) on the given connection. |
|
206 |
* @param conn The connection to apply the header(s) to |
|
207 |
* @param p A source of header values for this connection, not used because |
|
208 |
* HeaderParser converts the fields to lower case, use raw instead |
|
209 |
* @param raw The raw header field. |
|
210 |
* @return true if all goes well, false if no headers were set. |
|
211 |
*/ |
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@Override |
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|
213 |
public synchronized boolean setHeaders(HttpURLConnection conn, HeaderParser p, String raw) { |
2 | 214 |
|
215 |
try { |
|
216 |
String response; |
|
217 |
if (raw.length() < 6) { /* NTLM<sp> */ |
|
218 |
response = buildType1Msg (); |
|
219 |
} else { |
|
220 |
String msg = raw.substring (5); /* skip NTLM<sp> */ |
|
221 |
response = buildType3Msg (msg); |
|
222 |
} |
|
223 |
conn.setAuthenticationProperty(getHeaderName(), response); |
|
224 |
return true; |
|
225 |
} catch (IOException e) { |
|
226 |
return false; |
|
227 |
} catch (GeneralSecurityException e) { |
|
228 |
return false; |
|
229 |
} |
|
230 |
} |
|
231 |
||
232 |
private String buildType1Msg () { |
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byte[] msg = client.type1(); |
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String result = "NTLM " + Base64.getEncoder().encodeToString(msg); |
2 | 235 |
return result; |
236 |
} |
|
237 |
||
238 |
private String buildType3Msg (String challenge) throws GeneralSecurityException, |
|
239 |
IOException { |
|
240 |
/* First decode the type2 message to get the server nonce */ |
|
241 |
/* nonce is located at type2[24] for 8 bytes */ |
|
242 |
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byte[] type2 = Base64.getDecoder().decode(challenge); |
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byte[] nonce = new byte[8]; |
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new java.util.Random().nextBytes(nonce); |
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byte[] msg = client.type3(type2, nonce); |
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String result = "NTLM " + Base64.getEncoder().encodeToString(msg); |
2 | 248 |
return result; |
249 |
} |
|
250 |
} |
|
251 |