Class X509ExtendedTrustManager

java.lang.Object
javax.net.ssl.X509ExtendedTrustManager
All Implemented Interfaces:
TrustManager, X509TrustManager
public abstract class X509ExtendedTrustManager extends Object implements X509TrustManager
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.

Since:
1.7
See Also:

  • Constructor Summary

    Constructors
    Constructor
    Description
    X509ExtendedTrustManager()
    Constructor for subclasses to call.

  • Method Summary

    Modifier and Type
    Method
    Description
    abstract void
    checkClientTrusted(X509Certificate[] chain, String authType, Socket socket)
    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.
    abstract void
    checkClientTrusted(X509Certificate[] chain, String authType, SSLEngine engine)
    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.
    abstract void
    checkServerTrusted(X509Certificate[] chain, String authType, Socket socket)
    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.
    abstract void
    checkServerTrusted(X509Certificate[] chain, String authType, SSLEngine engine)
    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.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Answers a new instance of the same class as the receiver, whose slots have been filled in with the values in the slots of the receiver.
    boolean
    equals(Object o)
    Compares the argument to the receiver, and answers true if they represent the same object using a class specific comparison.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    May cause performance issues, deadlocks and hangs.
    final Class<? extends Object>
    getClass()
    Answers the unique instance of java.lang.Class which represents the class of the receiver.
    int
    hashCode()
    Answers an integer hash code for the receiver.
    final void
    notify()
    Causes one thread which is waiting on the receiver to be made ready to run.
    final void
    notifyAll()
    Causes all threads which are waiting on the receiver to be made ready to run.
    String
    toString()
    Answers a string containing a concise, human-readable description of the receiver.
    final void
    wait()
    Causes the thread which sent this message to be made not ready to run pending some change in the receiver (as indicated by notify or notifyAll).
    final void
    wait(long time)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.
    final void
    wait(long time, int frac)
    Causes the thread which sent this message to be made not ready to run either pending some change in the receiver (as indicated by notify or notifyAll) or the expiration of the timeout.

    Methods declared in interface X509TrustManager

    checkClientTrusted, checkServerTrusted, getAcceptedIssuers
    Modifier and Type
    Method
    Description
    void
    checkClientTrusted(X509Certificate[] chain, String authType)
    Given the partial or complete certificate chain provided by the peer, build a certificate path to a trusted root and return if it can be validated and is trusted for client SSL authentication based on the authentication type.
    void
    checkServerTrusted(X509Certificate[] chain, String authType)
    Given the partial or complete certificate chain provided by the peer, build a certificate path to a trusted root and return if it can be validated and is trusted for server SSL authentication based on the authentication type.
    X509Certificate[]
    getAcceptedIssuers()
    Return an array of certificate authority certificates which are trusted for authenticating peers.

  • Constructor Details

    • X509ExtendedTrustManager

      public X509ExtendedTrustManager()
      Constructor for subclasses to call.

  • Method Details

    • checkClientTrusted

      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 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.

      Parameters:
      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:

    • checkServerTrusted

      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 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.

      Parameters:
      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:

    • checkClientTrusted

      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 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.

      Parameters:
      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:

    • checkServerTrusted

      public abstract void checkServerTrusted(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.

      Parameters:
      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: