java/11 : java.base/javax/net/ssl/X509ExtendedTrustManager.java

X509ExtendedTrustManager
https://openjdk.java.net/
GPLv2 + Classpath Exception
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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package javax.net.ssl;

import java.net.Socket;
import javax.net.ssl.X509TrustManager;

import java.security.cert.X509Certificate;
import java.security.cert.CertificateException;

Extensions to the X509TrustManager interface to support SSL/TLS/DTLS connection sensitive trust management. 
To prevent man-in-the-middle attacks, hostname checks can be done
to verify that the hostname in an end-entity certificate matches the
targeted hostname.  TLS/DTLS does not require such checks, but some
protocols over TLS/DTLS (such as HTTPS) do.  In earlier versions of the
JDK, the certificate chain checks were done at the SSL/TLS/DTLS layer,
and the hostname verification checks were done at the layer over TLS/DTLS.
This class allows for the checking to be done during a single call to
this class.

RFC 2830 defines the server identification specification for the "LDAPS"
algorithm. RFC 2818 defines both the server identification and the
client identification specification for the "HTTPS" algorithm.
See Also: X509TrustManager
HostnameVerifier
Since: 1.7/**
 * Extensions to the {@code X509TrustManager} interface to support
 * SSL/TLS/DTLS connection sensitive trust management.
 * <p>
 * To prevent man-in-the-middle attacks, hostname checks can be done
 * to verify that the hostname in an end-entity certificate matches the
 * targeted hostname.  TLS/DTLS does not require such checks, but some
 * protocols over TLS/DTLS (such as HTTPS) do.  In earlier versions of the
 * JDK, the certificate chain checks were done at the SSL/TLS/DTLS layer,
 * and the hostname verification checks were done at the layer over TLS/DTLS.
 * This class allows for the checking to be done during a single call to
 * this class.
 * <p>
 * RFC 2830 defines the server identification specification for the "LDAPS"
 * algorithm. RFC 2818 defines both the server identification and the
 * client identification specification for the "HTTPS" algorithm.
 *
 * @see X509TrustManager
 * @see HostnameVerifier
 *
 * @since 1.7
 */
public abstract class X509ExtendedTrustManager implements X509TrustManager {
    Given the partial or complete certificate chain provided by the
peer, build and validate the certificate path based on the
authentication type and ssl parameters.

The authentication type is determined by the actual certificate
used. For instance, if RSAPublicKey is used, the authType
should be "RSA". Checking is case-sensitive.
 If the socket parameter is an instance of SSLSocket, and the endpoint identification algorithm of the SSLParameters is non-empty, to prevent man-in-the-middle attacks, the address that the socket connected to should be checked against the peer's identity presented in the end-entity X509 certificate, as specified in the endpoint identification algorithm. 
 If the socket parameter is an instance of SSLSocket, and the algorithm constraints of the SSLParameters is non-null, for every certificate in the certification path, fields such as subject public key, the signature algorithm, key usage, extended key usage, etc. need to conform to the algorithm constraints in place on this socket. 
Params: chain – the peer certificate chain
authType – the key exchange algorithm used
socket – the socket used for this connection. This parameter
       can be null, which indicates that implementations need not check
       the ssl parameters
Throws: IllegalArgumentException – if null or zero-length array is passed in for the chain parameter or if null or zero-length string is passed in for the authType parameter
CertificateException – if the certificate chain is not trusted
       by this TrustManager
See Also: SSLParameters.getEndpointIdentificationAlgorithm
SSLParameters.setEndpointIdentificationAlgorithm(String)
SSLParameters.getAlgorithmConstraints
SSLParameters.setAlgorithmConstraints(AlgorithmConstraints)/**
     * Given the partial or complete certificate chain provided by the
     * peer, build and validate the certificate path based on the
     * authentication type and ssl parameters.
     * <p>
     * The authentication type is determined by the actual certificate
     * used. For instance, if RSAPublicKey is used, the authType
     * should be "RSA". Checking is case-sensitive.
     * <p>
     * If the {@code socket} parameter is an instance of
     * {@link javax.net.ssl.SSLSocket}, and the endpoint identification
     * algorithm of the {@code SSLParameters} is non-empty, to prevent
     * man-in-the-middle attacks, the address that the {@code socket}
     * connected to should be checked against the peer's identity presented
     * in the end-entity X509 certificate, as specified in the endpoint
     * identification algorithm.
     * <p>
     * If the {@code socket} parameter is an instance of
     * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the
     * {@code SSLParameters} is non-null, for every certificate in the
     * certification path, fields such as subject public key, the signature
     * algorithm, key usage, extended key usage, etc. need to conform to the
     * algorithm constraints in place on this socket.
     *
     * @param chain the peer certificate chain
     * @param authType the key exchange algorithm used
     * @param socket the socket used for this connection. This parameter
     *        can be null, which indicates that implementations need not check
     *        the ssl parameters
     * @throws IllegalArgumentException if null or zero-length array is passed
     *        in for the {@code chain} parameter or if null or zero-length
     *        string is passed in for the {@code authType} parameter
     * @throws CertificateException if the certificate chain is not trusted
     *        by this TrustManager
     *
     * @see SSLParameters#getEndpointIdentificationAlgorithm
     * @see SSLParameters#setEndpointIdentificationAlgorithm(String)
     * @see SSLParameters#getAlgorithmConstraints
     * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints)
     */
    public abstract void checkClientTrusted(X509Certificate[] chain,
            String authType, Socket socket) throws CertificateException;

    Given the partial or complete certificate chain provided by the
peer, build and validate the certificate path based on the
authentication type and ssl parameters.

The authentication type is the key exchange algorithm portion
of the cipher suites represented as a String, such as "RSA",
"DHE_DSS". Note: for some exportable cipher suites, the key
exchange algorithm is determined at run time during the
handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
the authType should be RSA_EXPORT when an ephemeral RSA key is
used for the key exchange, and RSA when the key from the server
certificate is used. Checking is case-sensitive.
 If the socket parameter is an instance of SSLSocket, and the endpoint identification algorithm of the SSLParameters is non-empty, to prevent man-in-the-middle attacks, the address that the socket connected to should be checked against the peer's identity presented in the end-entity X509 certificate, as specified in the endpoint identification algorithm. 
 If the socket parameter is an instance of SSLSocket, and the algorithm constraints of the SSLParameters is non-null, for every certificate in the certification path, fields such as subject public key, the signature algorithm, key usage, extended key usage, etc. need to conform to the algorithm constraints in place on this socket. 
Params: chain – the peer certificate chain
authType – the key exchange algorithm used
socket – the socket used for this connection. This parameter
       can be null, which indicates that implementations need not check
       the ssl parameters
Throws: IllegalArgumentException – if null or zero-length array is passed in for the chain parameter or if null or zero-length string is passed in for the authType parameter
CertificateException – if the certificate chain is not trusted
       by this TrustManager
See Also: SSLParameters.getEndpointIdentificationAlgorithm
SSLParameters.setEndpointIdentificationAlgorithm(String)
SSLParameters.getAlgorithmConstraints
SSLParameters.setAlgorithmConstraints(AlgorithmConstraints)/**
     * Given the partial or complete certificate chain provided by the
     * peer, build and validate the certificate path based on the
     * authentication type and ssl parameters.
     * <p>
     * The authentication type is the key exchange algorithm portion
     * of the cipher suites represented as a String, such as "RSA",
     * "DHE_DSS". Note: for some exportable cipher suites, the key
     * exchange algorithm is determined at run time during the
     * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
     * the authType should be RSA_EXPORT when an ephemeral RSA key is
     * used for the key exchange, and RSA when the key from the server
     * certificate is used. Checking is case-sensitive.
     * <p>
     * If the {@code socket} parameter is an instance of
     * {@link javax.net.ssl.SSLSocket}, and the endpoint identification
     * algorithm of the {@code SSLParameters} is non-empty, to prevent
     * man-in-the-middle attacks, the address that the {@code socket}
     * connected to should be checked against the peer's identity presented
     * in the end-entity X509 certificate, as specified in the endpoint
     * identification algorithm.
     * <p>
     * If the {@code socket} parameter is an instance of
     * {@link javax.net.ssl.SSLSocket}, and the algorithm constraints of the
     *  {@code SSLParameters} is non-null, for every certificate in the
     * certification path, fields such as subject public key, the signature
     * algorithm, key usage, extended key usage, etc. need to conform to the
     * algorithm constraints in place on this socket.
     *
     * @param chain the peer certificate chain
     * @param authType the key exchange algorithm used
     * @param socket the socket used for this connection. This parameter
     *        can be null, which indicates that implementations need not check
     *        the ssl parameters
     * @throws IllegalArgumentException if null or zero-length array is passed
     *        in for the {@code chain} parameter or if null or zero-length
     *        string is passed in for the {@code authType} parameter
     * @throws CertificateException if the certificate chain is not trusted
     *        by this TrustManager
     *
     * @see SSLParameters#getEndpointIdentificationAlgorithm
     * @see SSLParameters#setEndpointIdentificationAlgorithm(String)
     * @see SSLParameters#getAlgorithmConstraints
     * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints)
     */
    public abstract void checkServerTrusted(X509Certificate[] chain,
        String authType, Socket socket) throws CertificateException;

    Given the partial or complete certificate chain provided by the
peer, build and validate the certificate path based on the
authentication type and ssl parameters.

The authentication type is determined by the actual certificate
used. For instance, if RSAPublicKey is used, the authType
should be "RSA". Checking is case-sensitive.
 If the engine parameter is available, and the endpoint identification algorithm of the SSLParameters is non-empty, to prevent man-in-the-middle attacks, the address that the engine connected to should be checked against the peer's identity presented in the end-entity X509 certificate, as specified in the endpoint identification algorithm. 
 If the engine parameter is available, and the algorithm constraints of the SSLParameters is non-null, for every certificate in the certification path, fields such as subject public key, the signature algorithm, key usage, extended key usage, etc. need to conform to the algorithm constraints in place on this engine. 
Params: chain – the peer certificate chain
authType – the key exchange algorithm used
engine – the engine used for this connection. This parameter
       can be null, which indicates that implementations need not check
       the ssl parameters
Throws: IllegalArgumentException – if null or zero-length array is passed in for the chain parameter or if null or zero-length string is passed in for the authType parameter
CertificateException – if the certificate chain is not trusted
       by this TrustManager
See Also: SSLParameters.getEndpointIdentificationAlgorithm
SSLParameters.setEndpointIdentificationAlgorithm(String)
SSLParameters.getAlgorithmConstraints
SSLParameters.setAlgorithmConstraints(AlgorithmConstraints)/**
     * Given the partial or complete certificate chain provided by the
     * peer, build and validate the certificate path based on the
     * authentication type and ssl parameters.
     * <p>
     * The authentication type is determined by the actual certificate
     * used. For instance, if RSAPublicKey is used, the authType
     * should be "RSA". Checking is case-sensitive.
     * <p>
     * If the {@code engine} parameter is available, and the endpoint
     * identification algorithm of the {@code SSLParameters} is
     * non-empty, to prevent man-in-the-middle attacks, the address that
     * the {@code engine} connected to should be checked against
     * the peer's identity presented in the end-entity X509 certificate,
     * as specified in the endpoint identification algorithm.
     * <p>
     * If the {@code engine} parameter is available, and the algorithm
     * constraints of the {@code SSLParameters} is non-null, for every
     * certificate in the certification path, fields such as subject public
     * key, the signature algorithm, key usage, extended key usage, etc.
     * need to conform to the algorithm constraints in place on this engine.
     *
     * @param chain the peer certificate chain
     * @param authType the key exchange algorithm used
     * @param engine the engine used for this connection. This parameter
     *        can be null, which indicates that implementations need not check
     *        the ssl parameters
     * @throws IllegalArgumentException if null or zero-length array is passed
     *        in for the {@code chain} parameter or if null or zero-length
     *        string is passed in for the {@code authType} parameter
     * @throws CertificateException if the certificate chain is not trusted
     *        by this TrustManager
     *
     * @see SSLParameters#getEndpointIdentificationAlgorithm
     * @see SSLParameters#setEndpointIdentificationAlgorithm(String)
     * @see SSLParameters#getAlgorithmConstraints
     * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints)
     */
    public abstract void checkClientTrusted(X509Certificate[] chain,
        String authType, SSLEngine engine) throws CertificateException;

    Given the partial or complete certificate chain provided by the
peer, build and validate the certificate path based on the
authentication type and ssl parameters.

The authentication type is the key exchange algorithm portion
of the cipher suites represented as a String, such as "RSA",
"DHE_DSS". Note: for some exportable cipher suites, the key
exchange algorithm is determined at run time during the
handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
the authType should be RSA_EXPORT when an ephemeral RSA key is
used for the key exchange, and RSA when the key from the server
certificate is used. Checking is case-sensitive.
 If the engine parameter is available, and the endpoint identification algorithm of the SSLParameters is non-empty, to prevent man-in-the-middle attacks, the address that the engine connected to should be checked against the peer's identity presented in the end-entity X509 certificate, as specified in the endpoint identification algorithm. 
 If the engine parameter is available, and the algorithm constraints of the SSLParameters is non-null, for every certificate in the certification path, fields such as subject public key, the signature algorithm, key usage, extended key usage, etc. need to conform to the algorithm constraints in place on this engine. 
Params: chain – the peer certificate chain
authType – the key exchange algorithm used
engine – the engine used for this connection. This parameter
       can be null, which indicates that implementations need not check
       the ssl parameters
Throws: IllegalArgumentException – if null or zero-length array is passed in for the chain parameter or if null or zero-length string is passed in for the authType parameter
CertificateException – if the certificate chain is not trusted
       by this TrustManager
See Also: SSLParameters.getEndpointIdentificationAlgorithm
SSLParameters.setEndpointIdentificationAlgorithm(String)
SSLParameters.getAlgorithmConstraints
SSLParameters.setAlgorithmConstraints(AlgorithmConstraints)/**
     * Given the partial or complete certificate chain provided by the
     * peer, build and validate the certificate path based on the
     * authentication type and ssl parameters.
     * <p>
     * The authentication type is the key exchange algorithm portion
     * of the cipher suites represented as a String, such as "RSA",
     * "DHE_DSS". Note: for some exportable cipher suites, the key
     * exchange algorithm is determined at run time during the
     * handshake. For instance, for TLS_RSA_EXPORT_WITH_RC4_40_MD5,
     * the authType should be RSA_EXPORT when an ephemeral RSA key is
     * used for the key exchange, and RSA when the key from the server
     * certificate is used. Checking is case-sensitive.
     * <p>
     * If the {@code engine} parameter is available, and the endpoint
     * identification algorithm of the {@code SSLParameters} is
     * non-empty, to prevent man-in-the-middle attacks, the address that
     * the {@code engine} connected to should be checked against
     * the peer's identity presented in the end-entity X509 certificate,
     * as specified in the endpoint identification algorithm.
     * <p>
     * If the {@code engine} parameter is available, and the algorithm
     * constraints of the {@code SSLParameters} is non-null, for every
     * certificate in the certification path, fields such as subject public
     * key, the signature algorithm, key usage, extended key usage, etc.
     * need to conform to the algorithm constraints in place on this engine.
     *
     * @param chain the peer certificate chain
     * @param authType the key exchange algorithm used
     * @param engine the engine used for this connection. This parameter
     *        can be null, which indicates that implementations need not check
     *        the ssl parameters
     * @throws IllegalArgumentException if null or zero-length array is passed
     *        in for the {@code chain} parameter or if null or zero-length
     *        string is passed in for the {@code authType} parameter
     * @throws CertificateException if the certificate chain is not trusted
     *        by this TrustManager
     *
     * @see SSLParameters#getEndpointIdentificationAlgorithm
     * @see SSLParameters#setEndpointIdentificationAlgorithm(String)
     * @see SSLParameters#getAlgorithmConstraints
     * @see SSLParameters#setAlgorithmConstraints(AlgorithmConstraints)
     */
    public abstract void checkServerTrusted(X509Certificate[] chain,
        String authType, SSLEngine engine) throws CertificateException;

}
Params:	chain – the peer certificate chain authType – the key exchange algorithm used socket – the socket used for this connection. This parameter can be null, which indicates that implementations need not check the ssl parameters
Throws:	IllegalArgumentException – if null or zero-length array is passed in for the `chain` parameter or if null or zero-length string is passed in for the `authType` parameter CertificateException – if the certificate chain is not trusted by this TrustManager
See Also:	SSLParameters.getEndpointIdentificationAlgorithm SSLParameters.setEndpointIdentificationAlgorithm(String) SSLParameters.getAlgorithmConstraints SSLParameters.setAlgorithmConstraints(AlgorithmConstraints)
/

java/ 11/ java.base/javax/net/ssl/X509ExtendedTrustManager.java
