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package org.bouncycastle.crypto.tls;
import java.io.IOException;
public abstract class PSKTlsClient
extends AbstractTlsClient
{
protected TlsPSKIdentity pskIdentity;
public PSKTlsClient(TlsPSKIdentity pskIdentity)
{
super();
this.pskIdentity = pskIdentity;
}
public PSKTlsClient(TlsCipherFactory cipherFactory, TlsPSKIdentity pskIdentity)
{
super(cipherFactory);
this.pskIdentity = pskIdentity;
}
public int[] getCipherSuites()
{
return new int[]{CipherSuite.TLS_DHE_PSK_WITH_AES_256_CBC_SHA, CipherSuite.TLS_DHE_PSK_WITH_AES_128_CBC_SHA,
CipherSuite.TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA, CipherSuite.TLS_DHE_PSK_WITH_RC4_128_SHA,
CipherSuite.TLS_RSA_PSK_WITH_AES_256_CBC_SHA, CipherSuite.TLS_RSA_PSK_WITH_AES_128_CBC_SHA,
CipherSuite.TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA, CipherSuite.TLS_RSA_PSK_WITH_RC4_128_SHA,
CipherSuite.TLS_PSK_WITH_AES_256_CBC_SHA, CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA,
CipherSuite.TLS_PSK_WITH_3DES_EDE_CBC_SHA, CipherSuite.TLS_PSK_WITH_RC4_128_SHA,};
}
public TlsKeyExchange getKeyExchange()
throws IOException
{
switch (selectedCipherSuite)
{
case CipherSuite.TLS_PSK_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA:
case CipherSuite.TLS_PSK_WITH_AES_256_CBC_SHA:
case CipherSuite.TLS_PSK_WITH_NULL_SHA:
case CipherSuite.TLS_PSK_WITH_RC4_128_SHA:
return createPSKKeyExchange(KeyExchangeAlgorithm.PSK);
case CipherSuite.TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_AES_128_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_AES_256_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_NULL_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_RC4_128_SHA:
return createPSKKeyExchange(KeyExchangeAlgorithm.RSA_PSK);
case CipherSuite.TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_AES_128_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_AES_256_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_NULL_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_RC4_128_SHA:
return createPSKKeyExchange(KeyExchangeAlgorithm.DHE_PSK);
default:
/*
* Note: internal error here; the TlsProtocol implementation verifies that the
* server-selected cipher suite was in the list of client-offered cipher suites, so if
* we now can't produce an implementation, we shouldn't have offered it!
*/
throw new TlsFatalAlert(AlertDescription.internal_error);
}
}
public TlsCipher getCipher()
throws IOException
{
switch (selectedCipherSuite)
{
case CipherSuite.TLS_PSK_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA:
return cipherFactory.createCipher(context, EncryptionAlgorithm._3DES_EDE_CBC, MACAlgorithm.hmac_sha1);
case CipherSuite.TLS_PSK_WITH_AES_128_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_AES_128_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_AES_128_CBC_SHA:
return cipherFactory.createCipher(context, EncryptionAlgorithm.AES_128_CBC, MACAlgorithm.hmac_sha1);
case CipherSuite.TLS_PSK_WITH_AES_256_CBC_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_AES_256_CBC_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_AES_256_CBC_SHA:
return cipherFactory.createCipher(context, EncryptionAlgorithm.AES_256_CBC, MACAlgorithm.hmac_sha1);
case CipherSuite.TLS_PSK_WITH_NULL_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_NULL_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_NULL_SHA:
return cipherFactory.createCipher(context, EncryptionAlgorithm.NULL, MACAlgorithm.hmac_sha1);
case CipherSuite.TLS_PSK_WITH_RC4_128_SHA:
case CipherSuite.TLS_RSA_PSK_WITH_RC4_128_SHA:
case CipherSuite.TLS_DHE_PSK_WITH_RC4_128_SHA:
return cipherFactory.createCipher(context, EncryptionAlgorithm.RC4_128, MACAlgorithm.hmac_sha1);
default:
/*
* Note: internal error here; the TlsProtocol implementation verifies that the
* server-selected cipher suite was in the list of client-offered cipher suites, so if
* we now can't produce an implementation, we shouldn't have offered it!
*/
throw new TlsFatalAlert(AlertDescription.internal_error);
}
}
protected TlsKeyExchange createPSKKeyExchange(int keyExchange)
{
return new TlsPSKKeyExchange(keyExchange, supportedSignatureAlgorithms, pskIdentity);
}
}
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