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310-110 exam Dumps Source : Sun Certified Mobile Application Developer for the Java 2 Platform, Micro Edition, Version 1.0

Test Code : 310-110
Test denomination : Sun Certified Mobile Application Developer for the Java 2 Platform, Micro Edition, Version 1.0
Vendor denomination : SUN
: 340 real Questions

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SUN SUN Sun Certified Mobile

sun Belt convention champion will play in unusual Orleans Bowl | killexams.com real Questions and Pass4sure dumps

The sun Belt convention champion will play within the R+L Carriers unusual Orleans Bowl, the league workplace introduced Friday.

In years past, the brand unusual Orleans Bowl had first pick from among bowl-eligible sun Belt groups, however was no longer required to ensnare the champion. With the establishment this yr of a conference championship game, the bowl will now automatically ensnare the winner.

“The R+L Carriers unusual Orleans Bowl and solar Belt football hold been linked together from the inception of both in 2001 and they are excited to preserve on their longstanding relationship with the game in this unusual and pleasing method,” talked about sun Belt convention Commissioner Karl Benson. “Our pupil-athletes, coaches, administrators and fanatics hold every bit of the time loved their visits to unusual Orleans and hold at every bit of times had a first-class bowl experience.

“The sun Belt champion could be greeted with the metropolis’s widespread hospitality and may play in the iconic Mercedes-Benz Superdome. it is an exciting time for each the solar Belt and the R+L Carriers unusual Orleans Bowl.”

The sun Belt championship online game takes vicinity Dec. 1 on the domestic web site of the highest ranked division champion, with ESPN featuring live coverage at 11 a.m.. With two weeks left within the ordinary season, Troy (8-2, 6-0) and Louisiana-Monroe (6-four, four-2) are in first region in the East and West Divisions.

The solar Belt champion will countenance a team from convention united states within the unusual Orleans Bowl, which takes Place Dec. 15 on the Mercedes Benz Superdome. The online game kicks off at 8 p.m. and may be televised via ESPN.’

The sun Belt has 4 different postseason tie-ins, the dollar universal (mobile), Camellia (Sir Bernard Law), heal (Orlando) and Arizona (Tucson) Bowls. Troy, Appalachian State, Georgia Southern, Louisiana-Monroe and Arkansas status hold already earned bowl-eligibility, with Louisiana-Lafayette and Coastal Carolina desiring one other victory each.


Cisco to tender Wi-sun certified IoT items for snug Utility and smart city Deployments | killexams.com real Questions and Pass4sure dumps

At Cisco, we’ve been supplying networking infrastructure to utilities and smart Cities around the world.  Their valued clientele hold informed us that they need snug interoperability across their gadgets and sensors linked over at ease multi-intention networks.

As a Sponsor member of the Wi-sun Alliance – a global ecosystem of corporations seeking to hasten up the implementation of open requirements-primarily based province enviornment Networks (FAN) and web of things (IoT) conclusion gadget interoperability – Cisco has been actively working with member groups to define, verify, and bring a typical open-requisites primarily based profile for this interoperability.

within the identical approach that diverse smartphones, capsules, computer systems and other gadgets can link by the utilize of Wi-Fi, the Wi-sun FAN specifications support gain positive that diverse utility, sane metropolis and industrial instruments can securely hook up with business-grade smart utility and sensible city networks.

nowadays we're completely tickled to promulgate Cisco’s aid for the unusual Wi-solar container enviornment community (FAN) Certification program. Cisco has already begun the manner to certify the CGR1240, IR509, IR510, IR529, and the IR530 industrial routers under these unusual Wi-sun requirements – and they are expecting to tender their first Wi-sun licensed IoT items by means of the conclusion of this yr.

Wi-solar = instant smart Ubiquitous Networks.take a watch at this video for a brief overview.

in keeping with open industry requirements posted via the IEEE and IETF, the Wi-sun FAN Certification defines a relaxed, resilient, multi-carrier IEEE 802.15.4 mesh community that can aid IPv6 Industrial IoT province purposes at a million-node scale. The Wi-sun FAN Certification will supply consumers self assurance that certified items in the program are interoperable with one one other and sourced from diverse companies.

This unusual certification software is the culmination of a long time of great travail by Cisco – in collaboration with different like-minded vendors – to implement and validate a at ease, multi-supplier, multi-service FAN infrastructure, giving consumers a attainable altenative to closed and proprietary service offerings.

extra particulars in regards to the Wi-solar Alliance can also be organize here.

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Renesas is a component of 1st wave of testing for Wi-solar FAN 1.0 certification | killexams.com real Questions and Pass4sure dumps

07 November 2018

Wi-sun Alliance has adopted Renesas Electronics' sub-gigahertz (Sub-G) instant answer as a candidate of the interoperability check bed devices (TBUs) for the Wi-sun FAN (container enviornment community) Certification program.

Renesas is section of the primary wave of groups taking section in the Wi-sun FAN 1.0 certification process with its RAA604S00/RX651 wireless answer. Certifications are deliberate by course of the conclusion of 2018.

The Sub-G instant solution elements Tessera technology’s contrast platform, which contains an assessment board established with Renesas’ RAA604S00 instant communications equipment-on-chip (SoC) and RX651 microcontroller (MCU), in addition to communique manage software provided by Renesas.

“The Wi-solar neighborhood has been making colossal strides within the progress and deployment of instant communications in the energy management systems business, and they are pleased to extend their dedication to the sensible energy markets and enhance the latest Wi-solar requisites with their Wi-solar FAN-certified solution and test mattress units,” talked about Akihiro Kuroda, vice president, power Infrastructure traffic Division, Renesas Electronics organization.

clients who extend sensible meters, sane illumination, infrastructure device, and equivalent products using the Renesas Sub-G instant answer could be capable of comfortably assure interoperability between device that makes utilize of the Wi-sun FAN specification. due to this fact, they should be capable of carve back their structure length for Wi-solar FAN-compliant software materiel by using about three hundred and sixty five days compared with altenative options.

The Sub-G party presents points which are resilient to actual limitations and can transmit facts even extra than supported through prior requirements, even in urban environments. considering the fact that vast areas can be coated with decent steadiness via mesh networks, it is applicable for purposes such smart meter communique, power utilization visualisation, monitoring device utilisation, and managing a variety of sensors inside a utility, factories and buildings.

creator Bethan Grylls




Killexams.com 310-110 Dumps and real Questions

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310-110 exam Dumps Source : Sun Certified Mobile Application Developer for the Java 2 Platform, Micro Edition, Version 1.0

Test Code : 310-110
Test denomination : Sun Certified Mobile Application Developer for the Java 2 Platform, Micro Edition, Version 1.0
Vendor denomination : SUN
: 340 real Questions

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Java 2 Platform Security | killexams.com real questions and Pass4sure dumps

This chapter explains the Java 2 platform architecture and its security features as they apply to structure Java applications. In particular, it describes the various Java platforms and the core security features that contribute to the end-to-end security of Java-based applications running on various systems—from servers to stand-alone computers, computers to devices, and devices to smart cards.

This chapter is from the book 

Topics in This Chapter

  • Java Security Architecture
  • Java Applet Security
  • Java Web Start Security
  • Java Security Management Tools
  • J2ME Security Architecture
  • Java Card Security Architecture
  • Securing the Java Code
  • Sun's Java philosophy of "Write Once, flee Anywhere" has been an evolving success Story since its inception, and it has revolutionized the computing industry by delivering to us the most capable platform for structure and running a wide orbit of applications and services. In general, the Java platform provides a general-purpose object-oriented programming language and a benchmark runtime environment for developing and delivering secure, cross-platform application solutions that can be accessed and dynamically loaded over the network or flee locally.

    With the release of the Java 2 Platform, Sun categorized the Java technologies under three key major editions in order to simplify software progress and deployment. The Java 2 benchmark Edition (J2SE) provides the runtime environment and API technologies for developing and executing basic Java applications, and it also serves as the secure foundation for running Java enterprise applications. The Java 2 Enterprise Edition (J2EE), or the J2EE Platform, is a set of standards and API technologies for developing and deploying multi-tier traffic applications. To support Java on microdevices and embedded systems, Java 2 Micro Edition (J2ME) provides the runtime environment and API technologies for addressing the needs of consumer electronics and devices. With its widespread adoption, today Java technology is enabled and executed from smart cards to microdevices, handhelds to desktops, workstations to enterprise servers, mainframes to supercomputers, and so on.

    To facilitate end-to-end security of the Java platform-based application solutions, the Java runtime environment (JRE) and the Java language provide a solid security foundation from the ground up by imposing tough format and structural constraints on the code and its execution environment. This distinguishes the Java platform from other application programming languages—it has a well-defined security architectural model for programming Java-based solutions and their secure execution.

    In this chapter, they will explore the various Java platforms and the intricate details of their security architecture that contribute to the end-to-end security of Java-based application solutions. In particular, they will study Java security and the inherent features of the following technologies:

  • J2SE security
  • Java applet security
  • Java Web start security
  • Java security management tools
  • J2ME security
  • Java Card security
  • Java Code obfuscation
  • Security has been an integral section of Java technology from day one. Security is also an evolving design goal of the Java community—building and running secure and robust Java-based network applications. The primary intuition for Java's success today as a secure execution environment is the intrinsic security of its architectural foundation—the Java Virtual Machine (JVM) and the Java language. This foundation achieves the basic Java security goal and its definitive ways for extending security capabilities to ensure features such as confidentiality, integrity, trust, and so forth. A second intuition for its success is its aptitude to deliver an interoperable and platform-neutral security infrastructure that can be integrated with the security of the underlying operating system and services.

    The Java Virtual Machine (JVM)

    The JVM is an abstract computing engine that resides on a host computer. It is the execution environment for the Java programming language and has the primary responsibility for executing the compiled code by interpreting it in a machine-independent and cross-platform fashion. The JVM is often referred to as the Java runtime environment. While executing a Java program running on top of the JVM, the JVM insulates the application from the underlying differences of the operating systems, networks, and system hardware, thus ensuring cross-platform compatibility among every bit of of the implementations of the Java platform.

    The Java language allows creation of general-purpose programs called Java classes that picture a Java program or an application. The Java classes compile into a format called Java's executable bytecodes, which are quite similar to the machine language that can flee on top of a JVM. The JVM also allows users to download and execute untrusted programs and applications from remote resources or over a network. To support delivery of Java components over the network, the JVM controls the primary security layer by protecting users and the environment from malicious programs. To enable security, the JVM enforces stringent measures ensuring systems security on the host client machine and its target server environments.

    Distributing the executable Java bytecode over a network or running automatically inside a Web browser or a client's machine leads to different security risks and attacks, such as disclosure of the target environment to the untrusted applications and damage or modification of the client's private information and data. For example, Java applets downloaded from a network are not allowed to hold access to, read from, or write to a local file system. They are also not allowed to create network connections to any host system except the one where they are deployed. On the other hand, stand-alone Java applications that reside and flee locally as trusted applications are not subjected to these security features. The key issue is that allowing untrusted applications such as Java applets to be downloaded from a network via a Web browser and letting them access unavoidable resources on the host computer paves the course for security breaches and becomes a potential avenue for the spread of viruses. To forestall known security breaches and threats, the JVM provides a built-in Java security architecture model, configurable security policies, access control mechanisms, and security extensions. Because of the built-in JVM safety features, Java programs can flee safely and are more securely protected from known vulnerabilities.

    The Java Language

    Java is a general-purpose object-oriented programming language similar to C++. It delivers platform-neutral compiled code that can be executed using a JVM and is intended for utilize in distributed application environments, heterogeneous systems, and diverse network environments. The Java language is also designed to provide for the security and integrity of the application and its underlying systems at every bit of levels—from the Java language constructs to the JVM runtime and from the class library to the complete application.

    The several inherent features of the Java language that provide for the secure Java platform are as follows:

  • The language defines every bit of primitives with a specific size and every bit of operations are defined to be in a specific order of execution. Thus, the code executed in different JVMs will not disagree from the specified order of execution.
  • The language provides access-control functionality on variables and methods in the object by defining denomination space management for ilk and procedure names. This secures the program by restricting access to its critical objects from untrusted code. For example, access is restricted by qualifying the ilk members as public, protected, private, package, etc.
  • The Java language does not allow defining or dereferencing pointers, which means that programmers cannot forge a pointer to the memory or create code defining offset points to memory. every bit of references to methods and instance variables in the class file are done via symbolic names. The elimination of pointers helps to forestall malicious programs fancy computer viruses and misuse of pointers such as accessing private methods directly by using a pointer starting from the object's pointer, or running off the finish of an array.
  • The Java object encapsulation supports "programming by contract," which allows the reuse of code that has already been tested.
  • The Java language is a strongly typed language. During compile time, the Java compiler does extensive ilk checking for ilk mismatches. This mechanism guarantees that the runtime data ilk variables are compatible and consistent with the compile time information.
  • The language allows declaring classes or methods as final. Any classes or methods that are declared as final cannot be overridden. This helps to protect the code from malicious attacks such as creating a subclass and substituting it for the original class and override methods.
  • The Java Garbage Collection mechanism contributes to secure Java programs by providing a transparent storage allocation and recovering unused memory instead of deallocating the memory using manual intervention. This ensures program integrity during execution and prevents programmatic access to incidental and incorrect freeing of memory resulting in a JVM crash.
  • With these features, Java fulfills the vow of providing a secure programming language that gives the programmer the liberty to write and execute code locally or ration it over a network.

    Java Built-in Security Model

    In the previous two sections, they briefly looked at the basic security features provided by the JVM and the Java language. As section of its security architecture, Java has a built-in policy-driven, domain-based security model. This allows implementing security policies, protecting/controlling access to resources, rule-based class loading, signing code and assigning levels of capability, and maintaining content privacy.

    In the first release of the Sun Java Platform, the Java progress Kit 1.0.x (JDK) introduced the notion of a sandbox-based security model. This primarily supports downloading and running Java applets securely and avoids any potential risks to the user's resources. With the JDK 1.0 sandbox security model, every bit of Java applications (excluding Java applets) executed locally can hold plenary access to the resources available to the JVM. Application code downloaded from remote resources, such as Java applets, will hold access only to the restricted resources provided within its sandbox. This sandbox security protects the Java applet user from potential risks because the downloaded applet cannot access or alter the user's resources beyond the sandbox.

    The release of JDK 1.1.x introduced the notion of signed applets, which allowed downloading and executing applets as trusted code after verifying the applet signer's information. To facilitate signed applets, JDK 1.1.x added support for cryptographic algorithms that provide digital signature capabilities. With this support, a Java applet class could be signed with digital signatures in the Java archive format (JAR file). The JDK runtime will utilize the trusted public keys to verify the signers of the downloaded applet and then handle it as a trusted local application, granting access to its resources. pattern 3-1 shows the representation of a sandbox in the JDK 1.1 security model.

    Java 2 Security Model

    The release of J2SE [J2SE] introduced a number of significant enhancements to JDK 1.1 and added such features as security extensions providing cryptographic services, digital certificate management, PKI management, and related tools. Some of the major changes in the Java 2 security architecture are as follows:

  • Policy-driven restricted access control to JVM resources.
  • Rules-based class loading and verification of byte code.
  • System for signing code and assigning levels of capability.
  • Policy-driven access to Java applets downloaded by a Web browser.
  • In the Java 2 security architecture, every bit of code—regardless of whether it is flee locally or downloaded remotely—can be subjected to a security policy configured by a JVM user or administrator. every bit of code is configured to utilize a particular domain (equivalent to a sandbox) and a security policy that dictates whether the code can be flee on a particular domain or not. pattern 3-2 illustrates the J2SE security architecture and its basic elements.

    03fig02.gif

    Figure 3-2 Java 2 Security architecture and basic elements

    Let's ensnare a more circumstantial watch at those core elements of the Java 2 security architecture.

    Protection Domains ( java.security.ProtectionDomain ): In J2SE, every bit of local Java applications flee unrestricted as trusted applications by default, but they can also be configured with access-control policies similar to what is defined in applets and remote applications. This is done by configuring a ProtectionDomain, which allows grouping of classes and instances and then associating them with a set of permissions between the resources. Protection domains are generally categorized as two domains: "system domain" and "application domain." every bit of protected external resources, such as the file systems, networks, and so forth, are accessible only via system domains. The resources that are section of the sole execution thread are considered an application domain. So in reality, an application that requires access to an external resource may hold an application domain as well as a system domain. While executing code, the Java runtime maintains a mapping from code to protection domain and then to its permissions.

    Protection domains are determined by the current security policy defined for a Java runtime environment. The domains are characterized using a set of permissions associated with a code source and location. The java.security.ProtectionDomain class encapsulates the characteristics of a protected domain, which encloses a set of classes and its granted set of permissions when being executed on behalf of a user.

    Permissions ( java.security.Permission ): In essence, permissions determine whether access to a resource of the JVM is granted or denied. To be more precise, they give specified resources or classes running in that instance of the JVM the aptitude to permit or disaffirm unavoidable runtime operations. An applet or an application using a security manager can obtain access to a system resource only if it has permission. The Java Security API defines a hierarchy for leave classes that can be used to configure a security policy. At the root, java.security.Permission is the abstract class, which represents access to a target resource; it can also involve a set of operations to construct access on a particular resource. The leave class contains several subclasses that picture access to different types of resources. The subclasses belong to their own packages that picture the APIs for the particular resource. Some of the commonly used leave classes are as follows:

    For wildcard permissions

    -java.security.AllPermission

    For named permissions

    -java.security.BasicPermission

    For file system

    -java.io.FilePermission

    For network

    -java.net.SocketPermission

    For properties

    -java.lang.PropertyPermission

    For runtime resources

    -java.lang.RuntimePermission

    For authentication

    -java.security.NetPermission

    For graphical resources

    -java.awt.AWTPermission

    Example 3-1 shows how to protect access to an object using permissions. The code shows the caller application with the required leave to access an object.

    Example 3-1. Using Java permissions to protect access to an object // Create the object that requires protection String protectedObj = "For trusted eyes only"; // create the required leave that will // protect the object. // Guard, represents an object that is used to protect // access to another object. Guard myGuard = unusual PropertyPermission ("java.home", "read"); // Create the guard GuardedObject gobj = unusual GuardedObject(protectedObj, myGuard); // come by the guarded object try { object o = gobj.getObject(); } ensnare (AccessControlException e) { // Cannot access the object }

    Permissions can also be defined using security policy configuration files (java.policy). For example, to award access to read a file in "c:\temp\" (on Windows), the FilePermission can be defined in a security policy file (see instance 3-2).

    Example 3-2. Setting Java permissions in policy configuration file grant{ leave java.io.FilePermission "c:\\temp\\testFile", "read"; };

    Policy: The Java 2 security policy defines the protection domains for every bit of running Java code with access privileges and a set of permissions such as read and write access or making a connection to a host. The policy for a Java application is represented by a Policy object, which provides a course to declare permissions for granting access to its required resources. In general, every bit of JVMs hold security mechanisms built in that allow you to define permissions through a Java security policy file. A JVM makes utilize of a policy-driven access-control mechanism by dynamically mapping a static set of permissions defined in one or more policy configuration files. These entries are often referred to as award entries. A user or an administrator externally configures the policy file for a J2SE runtime environment using an ASCII text file or a serialized binary file representing a Policy class. In a J2SE environment, the default system-wide security policy file java.policy is located at <JRE_HOME>/lib/security/ directory. The policy file location is defined in the security properties file with a java.security setting, which is located at <JRE_HOME>/lib/security/java.security.

    Example 3-3 is a policy configuration file that specifies the leave for a signed JAR file loaded from "http://coresecuritypatterns.com/*" and signed by "javaguy," and then grants read/write access to every bit of files in /export/home/test.

    Example 3-3. Setting codebase and permissions in policy configuration file award signedBy "javaguy", codebase "http://coresecuritypatterns.com/*" { leave java.io.FilePermission "/export/home/test/*", "read,write"; };

    The J2SE environment also provides a GUI-based utensil called "policytool" for editing a security policy file, which is located at "<JAVA_HOME>/bin/policytool."

    By default, the Java runtime uses the policy files located in:

    ${java.home}/jre/lib/security/java.policy ${user.home}/.java.policy

    These policy files are specified in the default security file:

    ${java.home}/jre/lib/security/java.security

    The effectual policy of the JVM runtime environment will be the union of every bit of permissions in every bit of policy files. To specify an additional policy file, you can set the java.security.policy system property at the command line:

    java -Djava.security.manager -Djava.security.policy=myURL MyClass

    To ignore the policies in the java.security file and only utilize the custom policy, utilize '==' instead of '=':

    java -Djava.security.manager -Djava.security.policy==Mylocation/My.policy MyClass

    SecurityManager ( java.lang.SecurityManager ): Each Java application can hold its own security manager that acts as its primary security guard against malicious attacks. The security manager enforces the required security policy of an application by performing runtime checks and authorizing access, thereby protecting resources from malicious operations. Under the hood, it uses the Java security policy file to settle which set of permissions are granted to the classes. However, when untrusted classes and third-party applications utilize the JVM, the Java security manager applies the security policy associated with the JVM to identify malicious operations. In many cases, where the threat model does not involve malicious code being flee in the JVM, the Java security manager is unnecessary. In cases where the SecurityManager detects a security policy violation, the JVM will fling an AccessControlException or a SecurityException.

    In a Java application, the security manager is set by the setSecurityManager mode in class System. And the current security manager is obtained via the getSecurityManager mode (see instance 3-4).

    Example 3-4. Using SecurityManager SecurityManager mySecurityMgr = System.getSecurityManager(); if (mySecurityMgr != null) { mySecurityMgr.checkWrite(name); }

    The class java.lang.SecurityManager consists of a number of checkXXXX methods fancy checkRead (String file) to determine access privileges to a file. The check methods convoke the SecurityManager.checkPermission mode to find whether the calling application has permissions to accomplish the requested operation, based on the security policy file. If not, it throws a SecurityException.

    If you wish to hold your applications utilize a SecurityManager and security policy, start up the JVM with the -Djava.security.manager option and you can also specify a security policy file using the policies in the -Djava.security.policy option as JVM arguments. If you enable the Java Security Manager in your application but accomplish not specify a security policy file, then the Java Security Manager uses the default security policies defined in the java.policy file in the $JAVA_HOME/jre/lib/security directory. instance 3-5 programmatically enables the security manager.

    Example 3-5. Using SecurityManager for restricting access control // Before the security manager is enabled, // this convoke is possible System.setProperty("java.version","Malicious: Delete"); try { // Enable the security manager SecurityManager sm = unusual SecurityManager(); System.setSecurityManager(sm); } ensnare (SecurityException se) { // SecurityManager already set } // After the security manager is enabled: // This convoke is no longer possible; // an AccessControlException is thrown System.setProperty ("java.version", "Malicious: Delete");

    The security manager can also be installed from the command-line interface:

    java -Djava.security.manager <ClassName>

    AccessController ( java.security.AccessController ): The access controller mechanism performs a dynamic inspection and decides whether the access to a particular resource can be allowed or denied. From a programmer's standpoint, the Java access controller encapsulates the location, code source, and permissions to accomplish the particular operation. In a typical process, when a program executes an operation, it calls through the security manager, which delegates the request to the access controller, and then finally it gets access or denial to the resources. In the java.security.AccessController class, the checkPermission mode is used to determine whether the access to the required resource is granted or denied. If a requested access is granted, the checkPermission mode returns true; otherwise, the mode throws an AccessControlException.

    For example, to check read and write leave for a directory in the file system, you would utilize the code shown in instance 3-6.

    Example 3-6. Using AccessController try { AccessController.checkPermission (new FilePermission("/var/temp/*", "read,write")); } ensnare (SecurityException e) { // Does not hold leave to access the directory }

    Codebase: A URL location of class or JAR files are specified using codebase. The URL may refer to a location of a directory in the local file system or on the Internet. instance 3-7 retrieves every bit of the permissions granted to a particular class that's been loaded from a code base. The permissions are effectual only if the security manager is installed. The loaded class uses those permissions by executing Class.getProtectionDomain() and Policy.getPermissions().

    Example 3-7. Using codebase class URL codebase = null; try { // come by permissions for a URL codebase = unusual URL("http://coresecuritypatterns.com/"); } ensnare (MalformedURLException e) { } ensnare (IOException e) { } // Construct a code source with the code base CodeSource cs = unusual CodeSource(codebase, null); // come by every bit of granted permissions PermissionCollection pcoll = Policy.getPolicy().getPermissions(cs); // View each leave in the leave collection Enumeration enum = pcoll.elements(); for (; enum.hasMoreElements(); ) { leave p = (Permission)enum.nextElement(); System.out.println("Permission " + p); }

    To test instance 3-7, instance 3-8 is the policy file (test.policy), which provides leave to read every bit of system properties.

    Example 3-8. Policy file for testing permissions to a codebase award codebase "http://coresecuritypatterns.com/-" { // Give leave to read every bit of system properties leave java.util.PropertyPermission "*", "read"; };

    To ignore the default policies in the java.security file, and only utilize the specified policy, utilize '==' instead of '='. With the policy just presented, you may flee the following:

    java -Djava.security.policy==test.policy TestClass

    CodeSource: The CodeSource allows representation of a URL from which a class was loaded and the certificate keys that were used to sign that class. It provides the very notion as codebase, but it encapsulates the codebase (URL) of the code where it is loaded and also the certificate keys that were used to verify the signed code. The CodeSource class and its two arguments to specify the code location and its associated certificate keys are as follows:

    CodeSource(URL url, java.security.cert.Certificate certs[]);

    To construct a code source with the code ground and without using certificates, you would utilize the following:

    CodeSource cs = unusual CodeSource(codebase, null);

    Bytecode verifier: The Java bytecode verifier is an integral section of the JVM that plays the necessary role of verifying the code prior to execution. It ensures that the code was produced consistent with specifications by a trustworthy compiler, confirms the format of the class file, and proves that the series of Java byte codes are legal. With bytecode verification, the code is proved to be internally consistent following many of the rules and constraints defined by the Java language compiler. The bytecode verifier may also detect inconsistencies related to unavoidable cases of array bound-checking and object-casting through runtime enforcement.

    To manually control the even of bytecode verification, the options to the Java command with the V1.2 JRE are as follows:

  • -Xverify:remote runs verification process on classes loaded over network (default)
  • -Xverify:all verifies every bit of classes loaded
  • -Xverify:none does no verification
  • ClassLoader: The ClassLoader plays a divide role in Java security, because it is primarily answerable for loading the Java classes into the JVM and then converting the raw data of a class into an internal data structure representing the class. From a security standpoint, class loaders can be used to establish security policies before executing untrusted code, to verify digital signatures, and so on. To implement security, the class loader coordinates with the security manager and access controller of the JVM to determine the security policies of a Java application. The class loader further enforces security by defining the namespace separation between classes that are loaded from different locations, including networks. This ensures that classes loaded from multiple hosts will not communicate within the very JVM space, thus making it impossible for untrusted code to come by information from trusted code. The class loader finds out the Java application's access privileges using the security manager, which applies the required security policy based on the requesting context of the caller application.

    With the Java 2 platform, every bit of Java applications hold the capability of loading bootstrap classes, system classes, and application classes initially using an internal class loader (also referred to as primordial class loader). The primordial class loader uses a special class loader SecureClassLoader to protect the JVM from loading malicious classes. This java.security.SecureClassLoader class has a protected constructor that associates a loaded class to a protection domain. The SecureClassLoader also makes utilize of permissions set for the codebase. For instance, URLClassLoader is a subclass of the SecureClassLoader. URLClassLoader allows loading a class or location specified with a URL.

    Refer to instance 3-9, which shows how a URLClassLoader can be used to load classes from a directory.

    Example 3-9. Using URLClassLoader // Create a File object on the root of the // directory containing the class file File file = unusual File("c:\\myclasses\\"); try { // transmogrify File to a URL URL url = file.toURL(); URL[] urls = unusual URL[]{url}; // Create a unusual class loader with the directory ClassLoader myclassloader = unusual URLClassLoader(urls); // Load in the class; // MyClass.class should be located in // the directory file:/c:/myclasses/com/security Class myclass = myclassloader.loadClass("com.security.MySecureClass"); } ensnare (MalformedURLException e) { } ensnare (ClassNotFoundException e) { }

    Keystore and Keytool: The Java 2 platform provides a password-protected database facility for storing trusted certificate entries and key entries. The keytool allows the users to create, manage, and administer their own public/private key pairs and associated certificates that are intended for utilize in authentication services and in representing digital signatures.

    We will ensnare a watch in greater detail at the usage of the Java keystore and keytool and how these tools encourage Java security in the section entitled "Java Security Management Tools," later in this chapter.


    Sun and Laszlo Bring OpenLaszlo Applications to Java(TM) Platform, Micro Edition Technology | killexams.com real questions and Pass4sure dumps

    Collaboration Adds Laszlo Systems' wealthy Internet progress Platform to Java Technology-enabled Devices

    SANTA CLARA, Calif. and SAN MATEO, Calif., Oct. 10 / -- Sun Microsystems Inc. (NASDAQ:SUNW), the creator and leading advocate of Java and Solaris(TM) technology, and Laszlo Systems, Inc., the original developer of OpenLaszlo, a leading open source wealthy Internet progress platform, today announced a collaboration to enable OpenLaszlo applications to flee on devices supporting the Java Platform, Micro Edition (Java ME) application environment. With this move, Sun and Laszlo are actively contributing resources to a unusual project for the OpenLaszlo community, code-named Orbit.

    With more than 3.8 billion Java-technology devices including 1.2 billion Java technology-powered phones in the world today, Sun has one of the most widely distributed client run-time environments. OpenLaszlo is a widely adopted open source application progress platform that uses Ajax-style programming techniques, integrating XML and JavaScript(TM), to create wealthy and robust online experiences. With this endeavor, Sun and Laszlo will travail together to bridge OpenLaszlo's meaningful markup language, LZX, with the ubiquity and power of the Java ME platform.

    OpenLaszlo, currently in version 3.3, was designed from its inception to support the instantaneous, no-download deployment of web applications on a diverse set of client runtime environments. Now with further extension to support the Java ME platform, OpenLaszlo will tender an unprecedented even of progress portability and flexibility across a wide variety of Java technology-based phones, television set-top boxes, and other connected devices. support for OpenLaszlo applications further enhances one of the key strengths of the Java platform -- the aptitude to support progress environments and authoring tools targeting a broad spectrum of developer skills and preferences.

    "The integration of OpenLaszlo and the Java ME platform is another necessary step in the evolution of mobile computing," said Robert Brewin, CTO of Sun Microsystems' software group. "This collaboration will bring the richness of the modern web, the power of Java technology and the unique capabilities of OpenLaszlo together for the capitalize of their respective developer communities."

    "We're pleased to be working with Sun, which is a tall step forward in furthering their collective vision of enabling seamless application support for every bit of connected devices," said David Temkin, founder and CTO of Laszlo Systems. "With both companies' tough commitment to open source and open standards, today's announcement marks a significant milestone towards those efforts."

    Sun and Laszlo hope to release the first demonstrable Project Orbit application running under the Java ME platform later this year. For more information on Project Orbit and its goals, gladden visit www.java.net or www.openlaszlo.org/orbit . To become a contributor to the Project, registration is available at www.openlaszlo.org/orbit .

    About Sun Microsystems, Inc.

    A singular vision -- "The Network Is The Computer" -- guides Sun in the progress of technologies that power the world's most necessary markets. Sun's philosophy of sharing innovation and structure communities is at the forefront of the next wave of computing: the Participation Age. Sun can be organize in more than 100 countries and on the Web at http://sun.com/.

    About Laszlo Systems

    Laszlo Systems is the original developer of OpenLaszlo, the leading open source platform for structure and deploying Web 2.0 applications. OpenLaszlo technology has been widely adopted by application and service providers in the consumer, enterprise, education and government markets. Laszlo Systems provides updates, training and support for OpenLaszlo and offers rich-experience web-based digital life applications such as Laszlo Mail, built on OpenLaszlo.

    For more information about San Mateo, Calif.-based Laszlo Systems, visit www.laszlosystems.com .

    Source: Sun Microsystems, Inc.

    CONTACT: Asa Fenton of gnaw Communications, +1-415-365-0482, or Asa.fenton@bitepr.com, for Sun; or Helena Kimball of Laszlo Systems,+1-650-358-2717, or hkimball@laszlosystems.com

    Web site: www.laszlosystems.com/

    Web site: http://sun.com/

    Related Thomas Industry Update Thomas For Industry

    Product ReviewA Small-Device Power ToolCodeWarrior PersonalJava Platform Edition 1.0 | killexams.com real questions and Pass4sure dumps

    Product ReviewA Small-Device Power ToolCodeWarrior PersonalJava Platform Edition 1.0
  • By L. J. Cohen
  • 10/13/2000
  • There's no doubt about it: The world is going wireless. Providing applications for a fast-emerging generation of mobile computing devices is the challenge of the day. Beyond the sexier wireless applications, embedded devices of every bit of kinds are pushing programmers into smaller and smaller spaces. Small-device programmers everywhere are charged with the stint of providing high-performance, robust apps that won't hold much legroom. They need every bit of the encourage they can come by as they strive to squeeze an ever-swelling package of features and functions into a stampeding herd of the limited-footprint, resource-constrained devices.

    For Java programmers, Sun's PersonalJava benchmark is making it easier to come by this particular job done. Already licensed by more than 1,300 companies (Motorola, Sony, and TCI among them), this subset of the Java 2 Micro Edition (J2ME) is quickly becoming a key technology for mobile computing developers.

    New tools specifically designed to exploit the PersonalJava benchmark are beginning to appear. Products such as Wind River Systems' Personal JWorks and Insignia Solutions' Jeode are creating a unusual category of Internet-appliance and embedded-device applications. Among this unusual crop of progress tools, the newly released Metrowerks CodeWarrior PersonalJava Platform Edition Version 1.0 caught their eye. They asked freelance programmer L. J. Cohen to ensnare the product for a test-drive.

    —John K. Waters Product Review Editor

    Vendor InfoMetrowerks Corp.9801 Metric Blvd.Austin, TX 78758800.377.5416http://www.metrowerks.com

    THE METROWERKS CODEWARRIOR IDE has been around for a number of years, and because it's easy-to-use, Mac compatible, and so many junior colleges and universities recommend it to their programming students (there's a student version of the product), it has grown a fairly substantial fan base.

    As one of those fans, I was delighted to learn the company had released a version of the product this past summer for small-device programmers. CodeWarrior PersonalJava Platform Edition 1.0 offers excellent support for Sun's PersonalJava technology.

    PersonalJava is a subset of the J2ME, which is used to develop applications for devices such as set-top boxes, Internet-connected cell phones, PDAs, and automotive navigation systems. The unusual CodeWarrior IDE accelerates the progress of PersonalJava applets and applications that target these kinds of networkable consumer devices.

    The unusual CodeWarrior IDE supports the PersonalJava 3.1 platform and combines most if not every bit of of the features developers hope in a satisfactory IDE. The product is touted by the vendor as "a complete utensil suite for PersonalJava development," and I'd hold to affirm they're not exaggerating. The product offers: a Java compiler; Rapid Application progress (RAD) for the Abstract Windowing Toolkit (AWT) GUI library; JavaCheck (see pattern 1), which provides validation of an application's API requirements with the PersonalJava API; and a Project Template that provides developers with a quick start to creating PersonalJava applications.

    Figure 1Figure 1. PersonalJava Platform Edition 1.0 validates code using the JavaCheck testing tool.

    The product includes every bit of the tools and functionality of the traditional CodeWarrior IDE. It also comes with the Truffle Graphical Toolkit, with which developers can create customized interfaces. It supports version control through third-party products such as Microsoft SourceSafe and Merant PVCS. And if you want to disassemble your compiled source code and view the machine code, it'll let you accomplish that too.

    I installed the CodeWarrior PersonalJava Edition from a CD onto a Pentium III-based desktop PC running Windows 98. Not much to affirm here, except that the wizard-managed installation came off without a hitch.

    The utensil comes with an emulation environment for analyzing, verifying, and debugging code, which you choose to install at the beginning of the installation routine. (I can't contemplate of a intuition not to install it.) According to both Metrowerks and Sun, any code that operates in CodeWarrior's emulation environment will flee on any PersonalJava certified device.

    Working with the product was—no surprise—easy and intuitive. I particularly liked the project templates and wizards, which tender quick starting of Java and PersonalJava applets and applications (which is why you bought the product), but also Beans, Java Stationary, and Project Makefiles. The product also allows users to set markers at specific locations inside the code for simple navigation. Also, you can right-click on any mode to find the definition and every bit of the implementations—very chilly and a real time-saver.

    To create a simple PersonalJava app (for this review, a stock-ticker-like text display), I chose a template (although the product gave me the option of structure it from scratch). I was then able to travail with a project preconfigured with every bit of the necessary libraries and source files. The unifying "entity" here is the project, which is a gathering of source files, resource files, compiler and linker switches, and parameters.

    The speed, integration, and flexibility of the product are truly impressive. CodeWarrior manages projects visually. Adding a source file to a project is simply a matter of dragging its icon from the desktop and dropping it into the project window. For every bit of intents and purposes, you can create, compile, link, and debug a project with a couple of mouse clicks. I was particularly pleased with the built-in debuggers for the Sun VM, the Apple MRJ, and PersonalJava emulation environment (PJEE).

    The product's File menu contains an updated unusual command, with which users create files, projects, RAD designs, and objects. The unusual command also lets users access CodeWarrior's Makefile Importer and RAD wizards.

    Developers of large, complicated object models will fondness the straightforward navigability of the class hierarchy in this product. The class browser is a powerful and simple-to-use feature that lets you maneuver to precise locations in your source code, quickly and easily.

    I was probably most impressed with the product's debugging capabilities. You spin on the debugger from within the Project pull-down menu (not the Debug pull-down menu—go figure), and you set conditional breakpoints from within the editor with a right-click of the mouse. The product also provides menu options that allow you to single-step through the code and even change program counters. A syntax error at compilation opens a fully functioning editor window, with the insertion point set automatically to the offending statement.

    As I mentioned earlier, the JavaCheck testing utensil is integrated with CodeWarrior. To validate my code—to gain positive that it conformed to the PersonalJava spec—I simply set the post-link compiler to execute JavaCheck.

    Running the application within the PJEE is the final step, if you want to gain positive it's going to flee in a PersonalJava environment. This involved a command-line convoke with the denomination of the class file, but having the emulator successfully panoply my text gave me a real sense of confidence that the application would travail later on.



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    Operations & Process Management: Principles & Practice for Strategic ImpactOperations & Process Management: Principles & Practice for Strategic Impact
    By Nigel Slack, Alistair Jones
    Publisher : Pearson (Feb 2018)
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    ISBN13 : 9781292176130
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    Computer Security: Principles and PracticeComputer Security: Principles and Practice
    By William Stallings, Lawrie Brown
    Publisher : Pearson (Aug 2017)
    ISBN10 : 0134794109
    ISBN13 : 9780134794105
    Our ISBN10 : 1292220619
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    Subject : Computer Science & Technology
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    Urban EconomicsUrban Economics
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    Publisher : McGraw-Hill (Jan 2018)
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    Urban EconomicsUrban Economics
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    Publisher : McGraw-Hill (Feb 2018)
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