Oracle Old Java Download Mac

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• Class

Class Mac

• • javax.crypto.Mac

• All Implemented Interfaces:

  Cloneable

  
  
  This class provides the functionality of a 'Message Authentication Code' (MAC) algorithm.

  A MAC provides a way to check the integrity of information transmitted over or stored in an unreliable medium, based on a secret key. Typically, message authentication codes are used between two parties that share a secret key in order to validate information transmitted between these parties.

  A MAC mechanism that is based on cryptographic hash functions is referred to as HMAC. HMAC can be used with any cryptographic hash function, e.g., SHA256 or SHA384, in combination with a secret shared key. HMAC is specified in RFC 2104.

  Every implementation of the Java platform is required to support the following standard Mac algorithms:

  • HmacMD5
  • HmacSHA1
  • HmacSHA256

  These algorithms are described in the Mac section of the Java Cryptography Architecture Standard Algorithm Name Documentation. Consult the release documentation for your implementation to see if any other algorithms are supported.

  Since:

  1.4

• • Constructor Summary

    Constructors

    Modifier	Constructor and Description
    protected	Mac(MacSpi macSpi, Provider provider, String algorithm)

  • Method Summary

    Methods

    Modifier and Type	Method and Description
    Object	clone() Returns a clone if the provider implementation is cloneable.
    byte[]	doFinal()
    byte[]	doFinal(byte[] input) Processes the given array of bytes and finishes the MAC operation.
    void	doFinal(byte[] output, int outOffset)
    String	getAlgorithm() Returns the algorithm name of this Mac object.
    static Mac	getInstance(String algorithm) Returns a Mac object that implements the specified MAC algorithm.
    static Mac	getInstance(String algorithm, Provider provider) Returns a Mac object that implements the specified MAC algorithm.
    static Mac	getInstance(String algorithm, String provider) Returns a Mac object that implements the specified MAC algorithm.
    int	getMacLength()
    Provider	getProvider() Returns the provider of this Mac object.
    void	init(Key key)
    void	init(Key key, AlgorithmParameterSpec params) Initializes this Mac object with the given key and algorithm parameters.
    void	reset()
    void	update(byte input) Processes the given byte.
    void	update(byte[] input)
    void	update(byte[] input, int offset, int len) Processes the first len bytes in input, starting at offset inclusive.
    void	update(ByteBuffer input) Processes input.remaining() bytes in the ByteBuffer input, starting at input.position().

    • Methods inherited from class java.lang.Object

      equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

• • Constructor Detail

    • Mac

      Parameters:

      macSpi - the delegate

      provider - the provider

      algorithm - the algorithm

  • Method Detail

    • getAlgorithm

      Returns the algorithm name of this Mac object.

      This is the same name that was specified in one of the getInstance calls that created this Mac object.

      Returns:

      the algorithm name of this Mac object.

    • getInstance

      Returns a Mac object that implements the specified MAC algorithm.

      This method traverses the list of registered security Providers, starting with the most preferred Provider. A new Mac object encapsulating the MacSpi implementation from the first Provider that supports the specified algorithm is returned.

      Note that the list of registered providers may be retrieved via the Security.getProviders() method.

      Parameters:

      algorithm - the standard name of the requested MAC algorithm. See the Mac section in the Java Cryptography Architecture Standard Algorithm Name Documentation for information about standard algorithm names.

      Returns:

      the new Mac object.

      Throws:

      NoSuchAlgorithmException - if no Provider supports a MacSpi implementation for the specified algorithm.

      See Also:

      Provider

    • getInstance

      Returns a Mac object that implements the specified MAC algorithm.

      A new Mac object encapsulating the MacSpi implementation from the specified provider is returned. The specified provider must be registered in the security provider list.

      Note that the list of registered providers may be retrieved via the Security.getProviders() method.

      Parameters:

      algorithm - the standard name of the requested MAC algorithm. See the Mac section in the Java Cryptography Architecture Standard Algorithm Name Documentation for information about standard algorithm names.

      provider - the name of the provider.

      Returns:

      the new Mac object.

      Throws:

      NoSuchAlgorithmException - if a MacSpi implementation for the specified algorithm is not available from the specified provider.

      NoSuchProviderException - if the specified provider is not registered in the security provider list.

      IllegalArgumentException - if the provider is null or empty.

      See Also:

      Provider

    • getInstance

      Returns a Mac object that implements the specified MAC algorithm.

      A new Mac object encapsulating the MacSpi implementation from the specified Provider object is returned. Note that the specified Provider object does not have to be registered in the provider list.

      Parameters:

      algorithm - the standard name of the requested MAC algorithm. See the Mac section in the Java Cryptography Architecture Standard Algorithm Name Documentation for information about standard algorithm names.

      provider - the provider.

      Returns:

      the new Mac object.

      Throws:

      NoSuchAlgorithmException - if a MacSpi implementation for the specified algorithm is not available from the specified Provider object.

      IllegalArgumentException - if the provider is null.

      See Also:

      Provider

    • getProvider

      Returns:

      the provider of this Mac object.

    • getMacLength

      Returns the length of the MAC in bytes.

      Returns:

      the MAC length in bytes.

    • init

      Parameters:

      key - the key.

      Throws:

      InvalidKeyException - if the given key is inappropriate for initializing this MAC.

    • init

      Initializes this Mac object with the given key and algorithm parameters.

      Parameters:

      key - the key.

      params - the algorithm parameters.

      Throws:

      InvalidKeyException - if the given key is inappropriate for initializing this MAC.

      InvalidAlgorithmParameterException - if the given algorithm parameters are inappropriate for this MAC.

    • update

      Parameters:

      input - the input byte to be processed.

      Throws:

      IllegalStateException - if this Mac has not been initialized.

    • update

      Processes the given array of bytes.

      Parameters:

      input - the array of bytes to be processed.

      Throws:

      IllegalStateException - if this Mac has not been initialized.

    • update

      Processes the first len bytes in input, starting at offset inclusive.

      Parameters:

      input - the input buffer.

      offset - the offset in input where the input starts.

      len - the number of bytes to process.

      Throws:

      IllegalStateException - if this Mac has not been initialized.

    • update

      Processes input.remaining() bytes in the ByteBuffer input, starting at input.position(). Upon return, the buffer's position will be equal to its limit; its limit will not have changed.

      Parameters:

      input - the ByteBuffer

      Throws:

      IllegalStateException - if this Mac has not been initialized.

      Since:

      1.5

    • doFinal

      Finishes the MAC operation.

      A call to this method resets this Mac object to the state it was in when previously initialized via a call to init(Key) or init(Key, AlgorithmParameterSpec). That is, the object is reset and available to generate another MAC from the same key, if desired, via new calls to update and doFinal. (In order to reuse this Mac object with a different key, it must be reinitialized via a call to init(Key) or init(Key, AlgorithmParameterSpec).

      Returns:

      the MAC result.

      Throws:

      IllegalStateException - if this Mac has not been initialized.

    • doFinal

      Finishes the MAC operation.

      A call to this method resets this Mac object to the state it was in when previously initialized via a call to init(Key) or init(Key, AlgorithmParameterSpec). That is, the object is reset and available to generate another MAC from the same key, if desired, via new calls to update and doFinal. (In order to reuse this Mac object with a different key, it must be reinitialized via a call to init(Key) or init(Key, AlgorithmParameterSpec).

      The MAC result is stored in output, starting at outOffset inclusive.

      Parameters:

      output - the buffer where the MAC result is stored

      outOffset - the offset in output where the MAC is stored

      Throws:

      ShortBufferException - if the given output buffer is too small to hold the result

      IllegalStateException - if this Mac has not been initialized.

    • doFinal

      Processes the given array of bytes and finishes the MAC operation.

      A call to this method resets this Mac object to the state it was in when previously initialized via a call to init(Key) or init(Key, AlgorithmParameterSpec). That is, the object is reset and available to generate another MAC from the same key, if desired, via new calls to update and doFinal. (In order to reuse this Mac object with a different key, it must be reinitialized via a call to init(Key) or init(Key, AlgorithmParameterSpec).

      Parameters:

      input - data in bytes

      Returns:

      the MAC result.

      Throws:

      IllegalStateException - if this Mac has not been initialized.

    • reset

      Resets this Mac object.

      A call to this method resets this Mac object to the state it was in when previously initialized via a call to init(Key) or init(Key, AlgorithmParameterSpec). That is, the object is reset and available to generate another MAC from the same key, if desired, via new calls to update and doFinal. (In order to reuse this Mac object with a different key, it must be reinitialized via a call to init(Key) or init(Key, AlgorithmParameterSpec).

    • clone

      Returns a clone if the provider implementation is cloneable.

      Overrides:

      clone in class Object

      Returns:

      a clone if the provider implementation is cloneable.

      Throws:

      CloneNotSupportedException - if this is called on a delegate that does not support Cloneable.

      See Also:

      Cloneable

• Class

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For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2020, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

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This page describes how to install and uninstall JDK 8 for OS X computers.

This page has these topics:

See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.

See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X.

System Requirements

Observe the following requirements:

• Any Intel-based computer running OS X 10.8 (Mountain Lion) or later.

Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user.

Installing the JDK also installs the JRE. The one exception is that the system will not replace the current JRE with a lower version. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'.

JDK Installation Instructions

When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. The JavaFX SDK and Runtime are also installed and integrated into the standard JDK directory structure.

Depending on your processor, the downloaded file has one of the following names:

• jdk-8uversion-macosx-amd64.dmg

• jdk-8uversion-macosx-x64.dmg

Oracle Download Java

Where version is 6 or later.

Oracle Sql Developer Download Mac

1. Download the file.

   Before the file can be downloaded, you must accept the license agreement.

2. From either the Downloads window of the browser, or from the file browser, double click the .dmg file to launch it.

   A Finder window appears containing an icon of an open box and the name of the .pkg file.

3. Double click the package icon to launch the Install app.

   The Install app displays the Introduction window.

   
   

   Note: In some cases, a Destination Select window appears. This is a bug, as there is only one option available. If you see this window, select Install for all users of this computer to enable the Continue button.

   
   

4. Click Continue. Java plugin for mac download.

   The Installation Type window appears.

5. Click Install.

   A window appears that says 'Installer is trying to install new software. Type your password to allow this.'

6. Enter the Administrator login and password and click Install Software.

   The software is installed and a confirmation window appears.

7. Refer to http://www.oracle.com/technetwork/java/javase/downloads/jdk-for-mac-readme-1564562.html for more information about the installation.

8. After the software is installed, delete the .dmg file if you want to save disk space.

Determining the Default Version of the JDK

If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences app. See 'Note for Users of OS X that Include Apple Java 6 Plug-in'.

There can be multiple JDKs installed on a system, as many as you wish.

When launching a Java application through the command line, the system uses the default JDK. It is possible for the version of the JRE to be different than the version of the JDK.

You can determine which version of the JDK is the default by typing java -version in a Terminal window. If the installed version is 8u6, you will see a string that includes the text 1.8.0_06. For example:

• Summary:
• Nested |
• Field |
• Constr |

• Detail:
• Field |
• Constr |

Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
Copyright © 1993, 2020, Oracle and/or its affiliates. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.

Scripting on this page tracks web page traffic, but does not change the content in any way.

This page describes how to install and uninstall JDK 8 for OS X computers.

This page has these topics:

See 'JDK 8 and JRE 8 Installation Start Here' for general information about installing JDK 8 and JRE 8.

See 'OS X Platform Install FAQ' for general information about installing JDK 8 on OS X.

System Requirements

Observe the following requirements:

• Any Intel-based computer running OS X 10.8 (Mountain Lion) or later.

• Administrator privileges.

Note that installing the JDK on OS X is performed on a system wide basis, for all users, and administrator privileges are required. You cannot install Java for a single user.

Installing the JDK also installs the JRE. The one exception is that the system will not replace the current JRE with a lower version. To install a lower version of the JRE, first uninstall the current version as described in 'Uninstalling the JRE'.

JDK Installation Instructions

When you install the Java Development Kit (JDK), the associated Java Runtime Environment (JRE) is installed at the same time. The JavaFX SDK and Runtime are also installed and integrated into the standard JDK directory structure.

Depending on your processor, the downloaded file has one of the following names:

• jdk-8uversion-macosx-amd64.dmg

• jdk-8uversion-macosx-x64.dmg

Oracle Download Java

Where version is 6 or later.

Oracle Sql Developer Download Mac

1. Download the file.

   Before the file can be downloaded, you must accept the license agreement.

2. From either the Downloads window of the browser, or from the file browser, double click the .dmg file to launch it.

   A Finder window appears containing an icon of an open box and the name of the .pkg file.

3. Double click the package icon to launch the Install app.

   The Install app displays the Introduction window.

   
   

   Note: In some cases, a Destination Select window appears. This is a bug, as there is only one option available. If you see this window, select Install for all users of this computer to enable the Continue button.

   
   

4. Click Continue. Java plugin for mac download.

   The Installation Type window appears.

5. Click Install.

   A window appears that says 'Installer is trying to install new software. Type your password to allow this.'

6. Enter the Administrator login and password and click Install Software.

   The software is installed and a confirmation window appears.

7. Refer to http://www.oracle.com/technetwork/java/javase/downloads/jdk-for-mac-readme-1564562.html for more information about the installation.

8. After the software is installed, delete the .dmg file if you want to save disk space.

Determining the Default Version of the JDK

If you have not yet installed Apple's Java OS X 2012-006 update, then you are still using a version of Apple Java 6 that includes the plug-in and the Java Preferences app. See 'Note for Users of OS X that Include Apple Java 6 Plug-in'.

There can be multiple JDKs installed on a system, as many as you wish.

When launching a Java application through the command line, the system uses the default JDK. It is possible for the version of the JRE to be different than the version of the JDK.

You can determine which version of the JDK is the default by typing java -version in a Terminal window. If the installed version is 8u6, you will see a string that includes the text 1.8.0_06. For example:

To run a different version of Java, either specify the full path, or use the java_home tool:

For more information, see the java_home(1) man page.

Uninstalling the JDK

To uninstall the JDK, you must have Administrator privileges and execute the remove command either as root or by using the sudo(8) tool.

For example, to uninstall 8u6:

Do not attempt to uninstall Java by removing the Java tools from /usr/bin. This directory is part of the system software and any changes will be reset by Apple the next time you perform an update of the OS.