iaik.pkcs.pkcs11.parameters.SSL3RandomDataParameters Maven / Gradle / Ivy
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package iaik.pkcs.pkcs11.parameters;
import iaik.pkcs.pkcs11.TokenRuntimeException;
import iaik.pkcs.pkcs11.Util;
import iaik.pkcs.pkcs11.wrapper.Constants;
import iaik.pkcs.pkcs11.wrapper.Functions;
import sun.security.pkcs11.wrapper.CK_SSL3_RANDOM_DATA;
/**
* This class encapsulates parameters for the Mechanism.SSL3_MASTER_KEY_DERIVE
* and Mechanism.SSL3_KEY_AND_MAC_DERIVE mechanisms.
*
* @author Karl Scheibelhofer
* @version 1.0
* @invariants (clientRandom_ <> null)
* and (serverRandom_ <> null)
*/
@SuppressWarnings("restriction")
public class SSL3RandomDataParameters implements Parameters {
/**
* The client's random data.
*/
protected byte[] clientRandom_;
/**
* The server's random data.
*/
protected byte[] serverRandom_;
/**
* Create a new SSL3RandomDataParameters object with the given client and
* server random.
*
* @param clientRandom
* The client's random data.
* @param serverRandom
* The server's random data.
* @preconditions (clientRandom <> null)
* and (serverRandom <> null)
* @postconditions
*/
public SSL3RandomDataParameters(byte[] clientRandom, byte[] serverRandom) {
clientRandom_ = Util.requireNonNull("clientRandom", clientRandom);
serverRandom_ = Util.requireNonNull("serverRandom", serverRandom);
}
/**
* Create a (deep) clone of this object.
*
* @return A clone of this object.
* @preconditions
* @postconditions (result <> null)
* and (result instanceof SSL3RandomDataParameters)
* and (result.equals(this))
*/
@Override
public java.lang.Object clone() {
SSL3RandomDataParameters clone;
try {
clone = (SSL3RandomDataParameters) super.clone();
clone.clientRandom_ = (byte[]) this.clientRandom_.clone();
clone.serverRandom_ = (byte[]) this.serverRandom_.clone();
} catch (CloneNotSupportedException ex) {
// this must not happen, because this class is cloneable
throw new TokenRuntimeException(
"An unexpected clone exception occurred.", ex);
}
return clone;
}
/**
* Get this parameters object as a CK_SSL3_RANDOM_DATA object.
*
* @return This object as a CK_SSL3_RANDOM_DATA object.
* @preconditions
* @postconditions (result <> null)
*/
@Override
public Object getPKCS11ParamsObject() {
return new CK_SSL3_RANDOM_DATA(clientRandom_, serverRandom_);
}
/**
* Get the client's random data.
*
* @return The client's random data.
* @preconditions
* @postconditions (result <> null)
*/
public byte[] getClientRandom() {
return clientRandom_;
}
/**
* Get the server's random data.
*
* @return The server's random data.
* @preconditions
* @postconditions (result <> null)
*/
public byte[] getServerRandom() {
return serverRandom_;
}
/**
* Set the client's random data.
*
* @param clientRandom
* The client's random data.
* @preconditions (clientRandom <> null)
* @postconditions
*/
public void setClientRandom(byte[] clientRandom) {
clientRandom_ = Util.requireNonNull("clientRandom", clientRandom);
}
/**
* Set the server's random data.
*
* @param serverRandom
* The server's random data.
* @preconditions (serverRandom <> null)
* @postconditions
*/
public void setServerRandom(byte[] serverRandom) {
serverRandom_ = Util.requireNonNull("serverRandom", serverRandom);
}
/**
* Returns the string representation of this object. Do not parse data from
* this string, it is for debugging only.
*
* @return A string representation of this object.
*/
@Override
public String toString() {
StringBuilder buffer = new StringBuilder();
buffer.append(Constants.INDENT);
buffer.append("Client Random (hex): ");
buffer.append(Functions.toHexString(clientRandom_));
buffer.append(Constants.NEWLINE_INDENT);
buffer.append("Server Random (hex): ");
buffer.append(Functions.toHexString(serverRandom_));
return buffer.toString();
}
/**
* Compares all member variables of this object with the other object.
* Returns only true, if all are equal in both objects.
*
* @param otherObject
* The other object to compare to.
* @return True, if other is an instance of this class and all member
* variables of both objects are equal. False, otherwise.
* @preconditions
* @postconditions
*/
@Override
public boolean equals(java.lang.Object otherObject) {
if (this == otherObject) {
return true;
}
if (!(otherObject instanceof SSL3RandomDataParameters)) {
return false;
}
SSL3RandomDataParameters other = (SSL3RandomDataParameters) otherObject;
return Functions.equals(this.clientRandom_, other.clientRandom_)
&& Functions.equals(this.serverRandom_, other.serverRandom_);
}
/**
* The overriding of this method should ensure that the objects of this
* class work correctly in a hashtable.
*
* @return The hash code of this object.
* @preconditions
* @postconditions
*/
@Override
public int hashCode() {
return Functions.hashCode(clientRandom_)
^ Functions.hashCode(serverRandom_);
}
}
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