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JRE 8 rt.jar - java.* Package Source Code
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime environment included in JDK 8. JRE 8 rt.jar libraries are divided into 6 packages:
com.* - Internal Oracle and Sun Microsystems libraries java.* - Standard Java API libraries. javax.* - Extended Java API libraries. jdk.* - JDK supporting libraries. org.* - Third party libraries. sun.* - Old libraries developed by Sun Microsystems.
JAR File Information:
Directory of C:\fyicenter\jdk-1.8.0_191\jre\lib 63,596,151 rt.jar
Here is the list of Java classes of the java.* package in JRE 1.8.0_191 rt.jar. Java source codes are also provided.
✍: FYIcenter
⏎ java/security/AlgorithmParameterGenerator.java
/* * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms. * * * * * * * * * * * * * * * * * * * * */ package java.security; import java.security.spec.AlgorithmParameterSpec; /** * The {@code AlgorithmParameterGenerator} class is used to generate a * set of * parameters to be used with a certain algorithm. Parameter generators * are constructed using the {@code getInstance} factory methods * (static methods that return instances of a given class). * * <P>The object that will generate the parameters can be initialized * in two different ways: in an algorithm-independent manner, or in an * algorithm-specific manner: * * <ul> * <li>The algorithm-independent approach uses the fact that all parameter * generators share the concept of a "size" and a * source of randomness. The measure of size is universally shared * by all algorithm parameters, though it is interpreted differently * for different algorithms. For example, in the case of parameters for * the <i>DSA</i> algorithm, "size" corresponds to the size * of the prime modulus (in bits). * When using this approach, algorithm-specific parameter generation * values - if any - default to some standard values, unless they can be * derived from the specified size. * * <li>The other approach initializes a parameter generator object * using algorithm-specific semantics, which are represented by a set of * algorithm-specific parameter generation values. To generate * Diffie-Hellman system parameters, for example, the parameter generation * values usually * consist of the size of the prime modulus and the size of the * random exponent, both specified in number of bits. * </ul> * * <P>In case the client does not explicitly initialize the * AlgorithmParameterGenerator * (via a call to an {@code init} method), each provider must supply (and * document) a default initialization. For example, the Sun provider uses a * default modulus prime size of 1024 bits for the generation of DSA * parameters. * * <p> Every implementation of the Java platform is required to support the * following standard {@code AlgorithmParameterGenerator} algorithms and * keysizes in parentheses: * <ul> * <li>{@code DiffieHellman} (1024)</li> * <li>{@code DSA} (1024)</li> * </ul> * These algorithms are described in the <a href= * "{@docRoot}/../technotes/guides/security/StandardNames.html#AlgorithmParameterGenerator"> * AlgorithmParameterGenerator section</a> of the * Java Cryptography Architecture Standard Algorithm Name Documentation. * Consult the release documentation for your implementation to see if any * other algorithms are supported. * * @author Jan Luehe * * * @see AlgorithmParameters * @see java.security.spec.AlgorithmParameterSpec * * @since 1.2 */ public class AlgorithmParameterGenerator { // The provider private Provider provider; // The provider implementation (delegate) private AlgorithmParameterGeneratorSpi paramGenSpi; // The algorithm private String algorithm; /** * Creates an AlgorithmParameterGenerator object. * * @param paramGenSpi the delegate * @param provider the provider * @param algorithm the algorithm */ protected AlgorithmParameterGenerator (AlgorithmParameterGeneratorSpi paramGenSpi, Provider provider, String algorithm) { this.paramGenSpi = paramGenSpi; this.provider = provider; this.algorithm = algorithm; } /** * Returns the standard name of the algorithm this parameter * generator is associated with. * * @return the string name of the algorithm. */ public final String getAlgorithm() { return this.algorithm; } /** * Returns an AlgorithmParameterGenerator object for generating * a set of parameters to be used with the specified algorithm. * * <p> This method traverses the list of registered security Providers, * starting with the most preferred Provider. * A new AlgorithmParameterGenerator object encapsulating the * AlgorithmParameterGeneratorSpi implementation from the first * Provider that supports the specified algorithm is returned. * * <p> Note that the list of registered providers may be retrieved via * the {@link Security#getProviders() Security.getProviders()} method. * * @param algorithm the name of the algorithm this * parameter generator is associated with. * See the AlgorithmParameterGenerator section in the <a href= * "{@docRoot}/../technotes/guides/security/StandardNames.html#AlgorithmParameterGenerator"> * Java Cryptography Architecture Standard Algorithm Name Documentation</a> * for information about standard algorithm names. * * @return the new AlgorithmParameterGenerator object. * * @exception NoSuchAlgorithmException if no Provider supports an * AlgorithmParameterGeneratorSpi implementation for the * specified algorithm. * * @see Provider */ public static AlgorithmParameterGenerator getInstance(String algorithm) throws NoSuchAlgorithmException { try { Object[] objs = Security.getImpl(algorithm, "AlgorithmParameterGenerator", (String)null); return new AlgorithmParameterGenerator ((AlgorithmParameterGeneratorSpi)objs[0], (Provider)objs[1], algorithm); } catch(NoSuchProviderException e) { throw new NoSuchAlgorithmException(algorithm + " not found"); } } /** * Returns an AlgorithmParameterGenerator object for generating * a set of parameters to be used with the specified algorithm. * * <p> A new AlgorithmParameterGenerator object encapsulating the * AlgorithmParameterGeneratorSpi implementation from the specified provider * is returned. The specified provider must be registered * in the security provider list. * * <p> Note that the list of registered providers may be retrieved via * the {@link Security#getProviders() Security.getProviders()} method. * * @param algorithm the name of the algorithm this * parameter generator is associated with. * See the AlgorithmParameterGenerator section in the <a href= * "{@docRoot}/../technotes/guides/security/StandardNames.html#AlgorithmParameterGenerator"> * Java Cryptography Architecture Standard Algorithm Name Documentation</a> * for information about standard algorithm names. * * @param provider the string name of the Provider. * * @return the new AlgorithmParameterGenerator object. * * @exception NoSuchAlgorithmException if an AlgorithmParameterGeneratorSpi * implementation for the specified algorithm is not * available from the specified provider. * * @exception NoSuchProviderException if the specified provider is not * registered in the security provider list. * * @exception IllegalArgumentException if the provider name is null * or empty. * * @see Provider */ public static AlgorithmParameterGenerator getInstance(String algorithm, String provider) throws NoSuchAlgorithmException, NoSuchProviderException { if (provider == null || provider.length() == 0) throw new IllegalArgumentException("missing provider"); Object[] objs = Security.getImpl(algorithm, "AlgorithmParameterGenerator", provider); return new AlgorithmParameterGenerator ((AlgorithmParameterGeneratorSpi)objs[0], (Provider)objs[1], algorithm); } /** * Returns an AlgorithmParameterGenerator object for generating * a set of parameters to be used with the specified algorithm. * * <p> A new AlgorithmParameterGenerator object encapsulating the * AlgorithmParameterGeneratorSpi implementation from the specified Provider * object is returned. Note that the specified Provider object * does not have to be registered in the provider list. * * @param algorithm the string name of the algorithm this * parameter generator is associated with. * See the AlgorithmParameterGenerator section in the <a href= * "{@docRoot}/../technotes/guides/security/StandardNames.html#AlgorithmParameterGenerator"> * Java Cryptography Architecture Standard Algorithm Name Documentation</a> * for information about standard algorithm names. * * @param provider the Provider object. * * @return the new AlgorithmParameterGenerator object. * * @exception NoSuchAlgorithmException if an AlgorithmParameterGeneratorSpi * implementation for the specified algorithm is not available * from the specified Provider object. * * @exception IllegalArgumentException if the specified provider is null. * * @see Provider * * @since 1.4 */ public static AlgorithmParameterGenerator getInstance(String algorithm, Provider provider) throws NoSuchAlgorithmException { if (provider == null) throw new IllegalArgumentException("missing provider"); Object[] objs = Security.getImpl(algorithm, "AlgorithmParameterGenerator", provider); return new AlgorithmParameterGenerator ((AlgorithmParameterGeneratorSpi)objs[0], (Provider)objs[1], algorithm); } /** * Returns the provider of this algorithm parameter generator object. * * @return the provider of this algorithm parameter generator object */ public final Provider getProvider() { return this.provider; } /** * Initializes this parameter generator for a certain size. * To create the parameters, the {@code SecureRandom} * implementation of the highest-priority installed provider is used as * the source of randomness. * (If none of the installed providers supply an implementation of * {@code SecureRandom}, a system-provided source of randomness is * used.) * * @param size the size (number of bits). */ public final void init(int size) { paramGenSpi.engineInit(size, new SecureRandom()); } /** * Initializes this parameter generator for a certain size and source * of randomness. * * @param size the size (number of bits). * @param random the source of randomness. */ public final void init(int size, SecureRandom random) { paramGenSpi.engineInit(size, random); } /** * Initializes this parameter generator with a set of algorithm-specific * parameter generation values. * To generate the parameters, the {@code SecureRandom} * implementation of the highest-priority installed provider is used as * the source of randomness. * (If none of the installed providers supply an implementation of * {@code SecureRandom}, a system-provided source of randomness is * used.) * * @param genParamSpec the set of algorithm-specific parameter generation values. * * @exception InvalidAlgorithmParameterException if the given parameter * generation values are inappropriate for this parameter generator. */ public final void init(AlgorithmParameterSpec genParamSpec) throws InvalidAlgorithmParameterException { paramGenSpi.engineInit(genParamSpec, new SecureRandom()); } /** * Initializes this parameter generator with a set of algorithm-specific * parameter generation values. * * @param genParamSpec the set of algorithm-specific parameter generation values. * @param random the source of randomness. * * @exception InvalidAlgorithmParameterException if the given parameter * generation values are inappropriate for this parameter generator. */ public final void init(AlgorithmParameterSpec genParamSpec, SecureRandom random) throws InvalidAlgorithmParameterException { paramGenSpi.engineInit(genParamSpec, random); } /** * Generates the parameters. * * @return the new AlgorithmParameters object. */ public final AlgorithmParameters generateParameters() { return paramGenSpi.engineGenerateParameters(); } }
⏎ java/security/AlgorithmParameterGenerator.java
Or download all of them as a single archive file:
File name: jre-rt-java-1.8.0_191-src.zip File size: 6664831 bytes Release date: 2018-10-28 Download
⇒ JRE 8 rt.jar - javax.* Package Source Code
2023-08-23, 249145👍, 4💬
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