diff options
Diffstat (limited to 'libjava/classpath/gnu/javax/net/ssl/provider/ClientKeyExchange.java')
| -rw-r--r-- | libjava/classpath/gnu/javax/net/ssl/provider/ClientKeyExchange.java | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/net/ssl/provider/ClientKeyExchange.java b/libjava/classpath/gnu/javax/net/ssl/provider/ClientKeyExchange.java new file mode 100644 index 00000000000..828aa8d5e93 --- /dev/null +++ b/libjava/classpath/gnu/javax/net/ssl/provider/ClientKeyExchange.java @@ -0,0 +1,181 @@ +/* ClientKeyExchange.java -- SSL ClientKeyExchange message. + Copyright (C) 2006 Free Software Foundation, Inc. + +This file is a part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or (at +your option) any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; if not, write to the Free Software +Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 +USA + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package gnu.javax.net.ssl.provider; + +import java.io.BufferedReader; +import java.io.DataInputStream; +import java.io.InputStream; +import java.io.IOException; +import java.io.OutputStream; +import java.io.PrintWriter; +import java.io.StringReader; +import java.io.StringWriter; + +import java.math.BigInteger; + +import java.security.PublicKey; +import java.security.interfaces.RSAKey; +import javax.crypto.interfaces.DHPublicKey; + +final class ClientKeyExchange implements Handshake.Body +{ + + // Fields. + // ------------------------------------------------------------------------- + + private final Object exObject; + + // Constructors. + // ------------------------------------------------------------------------- + + ClientKeyExchange(byte[] encryptedSecret) + { + exObject = encryptedSecret; + } + + ClientKeyExchange(BigInteger bigint) + { + exObject = bigint; + } + + // Class method. + // ------------------------------------------------------------------------- + + static ClientKeyExchange read(InputStream in, CipherSuite suite, + PublicKey key) + throws IOException + { + DataInputStream din = new DataInputStream(in); + if (suite.getKeyExchange().equals("RSA")) + { + int len = 0; + if (suite.getVersion() == ProtocolVersion.SSL_3) + { + len = (((RSAKey) key).getModulus().bitLength()+7) / 8; + } + else + { + len = din.readUnsignedShort(); + } + byte[] buf = new byte[len]; + din.readFully(buf); + return new ClientKeyExchange(buf); + } + else if (suite.getKeyExchange().equals("SRP")) + { + byte[] buf = new byte[din.readUnsignedShort()]; + din.readFully(buf); + return new ClientKeyExchange(new BigInteger(1, buf)); + } + else if (key == null || !(key instanceof DHPublicKey)) // explicit. + { + byte[] buf = new byte[din.readUnsignedShort()]; + din.readFully(buf); + return new ClientKeyExchange(new BigInteger(1, buf)); + } + else + { + return new ClientKeyExchange(new byte[0]); + } + } + + // Instance methods. + // ------------------------------------------------------------------------- + + public void write(OutputStream out) throws IOException + { + throw new UnsupportedOperationException("use write(java.io.OutputStream,ProtocolVersion) instead"); + } + + public void write(OutputStream out, ProtocolVersion version) throws IOException + { + if (exObject instanceof byte[]) + { + byte[] b = (byte[]) exObject; + if (b.length > 0) + { + if (version != ProtocolVersion.SSL_3) + { + out.write(b.length >>> 8 & 0xFF); + out.write(b.length & 0xFF); + } + out.write(b); + } + } + else + { + byte[] bigint = ((BigInteger) exObject).toByteArray(); + if (bigint[0] == 0x00) + { + out.write(bigint.length - 1 >>> 8 & 0xFF); + out.write(bigint.length - 1 & 0xFF); + out.write(bigint, 1, bigint.length - 1); + } + else + { + out.write(bigint.length >>> 8 & 0xFF); + out.write(bigint.length & 0xFF); + out.write(bigint); + } + } + } + + Object getExchangeObject() + { + return exObject; + } + + public String toString() + { + StringWriter str = new StringWriter(); + PrintWriter out = new PrintWriter(str); + out.println("struct {"); + if (exObject instanceof byte[] && ((byte[]) exObject).length > 0) + { + out.println(" encryptedPreMasterSecret ="); + out.print(Util.hexDump((byte[]) exObject, " ")); + } + else if (exObject instanceof BigInteger) + { + out.println(" clientPublic = " + ((BigInteger) exObject).toString(16) + ";"); + } + out.println("} ClientKeyExchange;"); + return str.toString(); + } +} |

