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<TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Guard.html#java.lang.reflect"><B>Guard</B></A></B><BR> This interface represents a guard, which is an object that is used to protect access to another object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Permission.html#java.lang.reflect"><B>Permission</B></A></B><BR> Abstract class for representing access to a system resource.</TD></TR></FONT></TD></TR></TABLE> <P><A NAME="java.net"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Classes in <A HREF="../../java/security/package-summary.html">java.security</A> used by <A HREF="../../java/net/package-summary.html">java.net</A><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/BasicPermission.html#java.net"><B>BasicPermission</B></A></B><BR> The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/CodeSource.html#java.net"><B>CodeSource</B></A></B><BR> This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate(s) that were used to verify signed code originating from that location.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Guard.html#java.net"><B>Guard</B></A></B><BR> This interface represents a guard, which is an object that is used to protect access to another object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Permission.html#java.net"><B>Permission</B></A></B><BR> Abstract class for representing access to a system resource.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/PermissionCollection.html#java.net"><B>PermissionCollection</B></A></B><BR> Abstract class representing a collection of Permission objects.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/SecureClassLoader.html#java.net"><B>SecureClassLoader</B></A></B><BR> This class extends ClassLoader with additional support for defining classes with an associated code source and permissions which are retrieved by the system policy by default.</TD></TR></FONT></TD></TR></TABLE> <P><A NAME="java.security"><!-- --></A><TABLE BORDER="1" CELLPADDING="3" CELLSPACING="0" WIDTH="100%"><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TD COLSPAN=2><FONT SIZE="+2">Classes in <A HREF="../../java/security/package-summary.html">java.security</A> used by <A HREF="../../java/security/package-summary.html">java.security</A><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AccessControlContext.html#java.security"><B>AccessControlContext</B></A></B><BR> An AccessControlContext is used to make system resource access decisions based on the context it encapsulates.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AccessControlException.html#java.security"><B>AccessControlException</B></A></B><BR> This exception is thrown by the AccessController to indicate that a requested access (to a critical system resource such as the file system or the network) is denied.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AlgorithmParameterGenerator.html#java.security"><B>AlgorithmParameterGenerator</B></A></B><BR> The <code>AlgorithmParameterGenerator</code> class is used to generate a set of parameters to be used with a certain algorithm.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AlgorithmParameterGeneratorSpi.html#java.security"><B>AlgorithmParameterGeneratorSpi</B></A></B><BR> This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) for the <code>AlgorithmParameterGenerator</code> class, which is used to generate a set of parameters to be used with a certain algorithm.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AlgorithmParameters.html#java.security"><B>AlgorithmParameters</B></A></B><BR> This class is used as an opaque representation of cryptographic parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/AlgorithmParametersSpi.html#java.security"><B>AlgorithmParametersSpi</B></A></B><BR> This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) for the <code>AlgorithmParameters</code> class, which is used to manage algorithm parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/BasicPermission.html#java.security"><B>BasicPermission</B></A></B><BR> The BasicPermission class extends the Permission class, and can be used as the base class for permissions that want to follow the same naming convention as BasicPermission.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Certificate.html#java.security"><B>Certificate</B></A></B><BR> <B>Deprecated.</B> <I>A new certificate handling package is created in the Java 2 platform. This Certificate interface is entirely deprecated and is here to allow for a smooth transition to the new package.</I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/CodeSource.html#java.security"><B>CodeSource</B></A></B><BR> This class extends the concept of a codebase to encapsulate not only the location (URL) but also the certificate(s) that were used to verify signed code originating from that location.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/DigestException.html#java.security"><B>DigestException</B></A></B><BR> This is the generic Message Digest exception.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/DomainCombiner.html#java.security"><B>DomainCombiner</B></A></B><BR> A <code>DomainCombiner</code> provides a means to dynamically update the ProtectionDomains associated with the current <code>AccessControlContext</code>.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/GeneralSecurityException.html#java.security"><B>GeneralSecurityException</B></A></B><BR> This is the general security exception class, which serves to group all the exception classes of the <code>java.security</code> package that extend from it.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Guard.html#java.security"><B>Guard</B></A></B><BR> This interface represents a guard, which is an object that is used to protect access to another object.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Identity.html#java.security"><B>Identity</B></A></B><BR> <B>Deprecated.</B> <I>This class is no longer used. Its functionality has been replaced by <code>java.security.KeyStore</code>, the <code>java.security.cert</code> package, and <code>java.security.Principal</code>.</I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/IdentityScope.html#java.security"><B>IdentityScope</B></A></B><BR> <B>Deprecated.</B> <I>This class is no longer used. Its functionality has been replaced by <code>java.security.KeyStore</code>, the <code>java.security.cert</code> package, and <code>java.security.Principal</code>.</I></TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/InvalidAlgorithmParameterException.html#java.security"><B>InvalidAlgorithmParameterException</B></A></B><BR> This is the exception for invalid or inappropriate algorithm parameters.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/InvalidKeyException.html#java.security"><B>InvalidKeyException</B></A></B><BR> This is the exception for invalid Keys (invalid encoding, wrong length, uninitialized, etc).</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/InvalidParameterException.html#java.security"><B>InvalidParameterException</B></A></B><BR> This exception is thrown when an invalid parameter is passed to a method.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/Key.html#java.security"><B>Key</B></A></B><BR> The Key interface is the top-level interface for all keys.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/KeyException.html#java.security"><B>KeyException</B></A></B><BR> This is the basic key exception.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/KeyFactory.html#java.security"><B>KeyFactory</B></A></B><BR> Key factories are used to convert <I>keys</I> (opaque cryptographic keys of type <code>Key</code>) into <I>key specifications</I> (transparent representations of the underlying key material), and vice versa.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/KeyFactorySpi.html#java.security"><B>KeyFactorySpi</B></A></B><BR> This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) for the <code>KeyFactory</code> class.</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><B><A HREF="../../java/security/class-use/KeyManagementException.html#java.security"><B>KeyManagementException</B></A></B>
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