JDK 11 java.security.sasl.jmod - Security SASL Module

JDK 11 java.security.sasl.jmod is the JMOD file for JDK 11 Security SASL (Simple Authentication and Security Layer) module.

JDK 11 Security SASL module compiled class files are stored in \fyicenter\jdk-11.0.1\jmods\java.security.sasl.jmod.

JDK 11 Security SASL module compiled class files are also linked and stored in the \fyicenter\jdk-11.0.1\lib\modules JImage file.

JDK 11 Security SASL module source code files are stored in \fyicenter\jdk-11.0.1\lib\src.zip\java.security.sasl.

You can click and view the content of each source code file in the list below.

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javax/security/sasl/SaslClient.java

/*
 * Copyright (c) 1999, 2013, Oracle and/or its affiliates. All rights reserved.
 * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 *
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package javax.security.sasl;

/**
 * Performs SASL authentication as a client.
 *<p>
 * A protocol library such as one for LDAP gets an instance of this
 * class in order to perform authentication defined by a specific SASL
 * mechanism. Invoking methods on the {@code SaslClient} instance
 * process challenges and create responses according to the SASL
 * mechanism implemented by the {@code SaslClient}.
 * As the authentication proceeds, the instance
 * encapsulates the state of a SASL client's authentication exchange.
 *<p>
 * Here's an example of how an LDAP library might use a {@code SaslClient}.
 * It first gets an instance of a {@code SaslClient}:
 *<blockquote><pre>{@code
 * SaslClient sc = Sasl.createSaslClient(mechanisms,
 *     authorizationId, protocol, serverName, props, callbackHandler);
 *}</pre></blockquote>
 * It can then proceed to use the client for authentication.
 * For example, an LDAP library might use the client as follows:
 *<blockquote><pre>{@code
 * // Get initial response and send to server
 * byte[] response = (sc.hasInitialResponse() ? sc.evaluateChallenge(new byte[0]) :
 *     null);
 * LdapResult res = ldap.sendBindRequest(dn, sc.getName(), response);
 * while (!sc.isComplete() &&
 *     (res.status == SASL_BIND_IN_PROGRESS || res.status == SUCCESS)) {
 *     response = sc.evaluateChallenge(res.getBytes());
 *     if (res.status == SUCCESS) {
 *         // we're done; don't expect to send another BIND
 *         if (response != null) {
 *             throw new SaslException(
 *                 "Protocol error: attempting to send response after completion");
 *         }
 *         break;
 *     }
 *     res = ldap.sendBindRequest(dn, sc.getName(), response);
 * }
 * if (sc.isComplete() && res.status == SUCCESS) {
 *    String qop = (String) sc.getNegotiatedProperty(Sasl.QOP);
 *    if (qop != null
 *        && (qop.equalsIgnoreCase("auth-int")
 *            || qop.equalsIgnoreCase("auth-conf"))) {
 *
 *      // Use SaslClient.wrap() and SaslClient.unwrap() for future
 *      // communication with server
 *      ldap.in = new SecureInputStream(sc, ldap.in);
 *      ldap.out = new SecureOutputStream(sc, ldap.out);
 *    }
 * }
 *}</pre></blockquote>
 *
 * If the mechanism has an initial response, the library invokes
 * {@code evaluateChallenge()} with an empty
 * challenge and to get initial response.
 * Protocols such as IMAP4, which do not include an initial response with
 * their first authentication command to the server, initiates the
 * authentication without first calling {@code hasInitialResponse()}
 * or {@code evaluateChallenge()}.
 * When the server responds to the command, it sends an initial challenge.
 * For a SASL mechanism in which the client sends data first, the server should
 * have issued a challenge with no data. This will then result in a call
 * (on the client) to {@code evaluateChallenge()} with an empty challenge.
 *
 * @since 1.5
 *
 * @see Sasl
 * @see SaslClientFactory
 *
 * @author Rosanna Lee
 * @author Rob Weltman
 */
public abstract interface SaslClient {

    /**
     * Returns the IANA-registered mechanism name of this SASL client.
     * (e.g. "CRAM-MD5", "GSSAPI").
     * @return A non-null string representing the IANA-registered mechanism name.
     */
    public abstract String getMechanismName();

    /**
     * Determines whether this mechanism has an optional initial response.
     * If true, caller should call {@code evaluateChallenge()} with an
     * empty array to get the initial response.
     *
     * @return true if this mechanism has an initial response.
     */
    public abstract boolean hasInitialResponse();

    /**
     * Evaluates the challenge data and generates a response.
     * If a challenge is received from the server during the authentication
     * process, this method is called to prepare an appropriate next
     * response to submit to the server.
     *
     * @param challenge The non-null challenge sent from the server.
     * The challenge array may have zero length.
     *
     * @return The possibly null response to send to the server.
     * It is null if the challenge accompanied a "SUCCESS" status and the challenge
     * only contains data for the client to update its state and no response
     * needs to be sent to the server. The response is a zero-length byte
     * array if the client is to send a response with no data.
     * @exception SaslException If an error occurred while processing
     * the challenge or generating a response.
     */
    public abstract byte[] evaluateChallenge(byte[] challenge)
        throws SaslException;

    /**
      * Determines whether the authentication exchange has completed.
      * This method may be called at any time, but typically, it
      * will not be called until the caller has received indication
      * from the server
      * (in a protocol-specific manner) that the exchange has completed.
      *
      * @return true if the authentication exchange has completed; false otherwise.
      */
    public abstract boolean isComplete();

    /**
     * Unwraps a byte array received from the server.
     * This method can be called only after the authentication exchange has
     * completed (i.e., when {@code isComplete()} returns true) and only if
     * the authentication exchange has negotiated integrity and/or privacy
     * as the quality of protection; otherwise, an
     * {@code IllegalStateException} is thrown.
     *<p>
     * {@code incoming} is the contents of the SASL buffer as defined in RFC 2222
     * without the leading four octet field that represents the length.
     * {@code offset} and {@code len} specify the portion of {@code incoming}
     * to use.
     *
     * @param incoming A non-null byte array containing the encoded bytes
     *                from the server.
     * @param offset The starting position at {@code incoming} of the bytes to use.
     * @param len The number of bytes from {@code incoming} to use.
     * @return A non-null byte array containing the decoded bytes.
     * @exception SaslException if {@code incoming} cannot be successfully
     * unwrapped.
     * @exception IllegalStateException if the authentication exchange has
     * not completed, or  if the negotiated quality of protection
     * has neither integrity nor privacy.
     */
    public abstract byte[] unwrap(byte[] incoming, int offset, int len)
        throws SaslException;

    /**
     * Wraps a byte array to be sent to the server.
     * This method can be called only after the authentication exchange has
     * completed (i.e., when {@code isComplete()} returns true) and only if
     * the authentication exchange has negotiated integrity and/or privacy
     * as the quality of protection; otherwise, an
     * {@code IllegalStateException} is thrown.
     *<p>
     * The result of this method will make up the contents of the SASL buffer
     * as defined in RFC 2222 without the leading four octet field that
     * represents the length.
     * {@code offset} and {@code len} specify the portion of {@code outgoing}
     * to use.
     *
     * @param outgoing A non-null byte array containing the bytes to encode.
     * @param offset The starting position at {@code outgoing} of the bytes to use.
     * @param len The number of bytes from {@code outgoing} to use.
     * @return A non-null byte array containing the encoded bytes.
     * @exception SaslException if {@code outgoing} cannot be successfully
     * wrapped.
     * @exception IllegalStateException if the authentication exchange has
     * not completed, or if the negotiated quality of protection
     * has neither integrity nor privacy.
     */
    public abstract byte[] wrap(byte[] outgoing, int offset, int len)
        throws SaslException;

    /**
     * Retrieves the negotiated property.
     * This method can be called only after the authentication exchange has
     * completed (i.e., when {@code isComplete()} returns true); otherwise, an
     * {@code IllegalStateException} is thrown.
     * <p>
     * The {@link Sasl} class includes several well-known property names
     * (For example, {@link Sasl#QOP}). A SASL provider can support other
     * properties which are specific to the vendor and/or a mechanism.
     *
     * @param propName The non-null property name.
     * @return The value of the negotiated property. If null, the property was
     * not negotiated or is not applicable to this mechanism.
     * @exception IllegalStateException if this authentication exchange
     * has not completed
     */

    public abstract Object getNegotiatedProperty(String propName);

     /**
      * Disposes of any system resources or security-sensitive information
      * the SaslClient might be using. Invoking this method invalidates
      * the SaslClient instance. This method is idempotent.
      * @throws SaslException If a problem was encountered while disposing
      * the resources.
      */
    public abstract void dispose() throws SaslException;
}

javax/security/sasl/SaslClient.java

 

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