Gemalto news

Google Go

Varun Mittal — Sat, 29 May 2010 10:26:56 +0000

Google recently announced their new programming language, Go. It is designed to bring some of the advances of modern programming languages back down to the systems arena where C still dominates today. However, the language is still experimental and evolving.

The Go authors set out to design a language that would be simple, fast, safe and concurrent. The language is simple enough that it does not even require a symbol table to parse. It compiles very quickly; sub-second compile times for entire projects are normal. It is garbage-collected, so it is safe with regards to memory. It is statically type-checked and does not allow type coercion, so is safe with regards to types. It also offers a powerful mechanism for implementing concurrency that is built right into the language

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http://www.infoq.com/articles/google-go-primer

Filed under: General Technical Tagged: Google

The Most Common Java Keytool Keystore Commands

Varun Mittal — Sat, 29 May 2010 10:24:33 +0000

Java Keytool is a key and certificate management utility. It allows users to manage their own public/private key pairs and certificates. It also allows users to cache certificates. Java Keytool stores the keys and certificates in what is called a keystore. By default the Java keystore is implemented as a file. It protects private keys with a password. A Keytool keystore contains the private key and any certificatesnecessary to complete a chain of trust and establish the trustworthiness of the primary certificate.

Each certificate in a Java keystore is associated with a unique alias. When creating a Java keystore you will first create the .jks file that will initially only contain the private key. You will then generate a CSR and have a certificate generated from it. Then you will import the certificate to the keystore including any root certificates. Java Keytool also several other functions that allow you to view the details of a certificate or list the certificates contained in a keystore or export a certificate.

http://www.sslshopper.com/article-most-common-java-keytool-keystore-commands.html

Filed under: Security Tagged: JAVA

Certification path validation algorithm

Varun Mittal — Sat, 29 May 2010 10:22:40 +0000

The certification path validation algorithm is the algorithm which verifies that a given certificate path is valid under a given public key infrastructure (PKI). A path starts with the Subject certificate and proceeds through a number of intermediate certificates up to a trusted root certificate, typically issued by a trusted Certification Authority (CA).

Path validation is necessary for a relying party to make an informed trust decision when presented with any certificate that is not already explicitly trusted. For example, in a hierarchical PKI, a certificate chain starting with a web server certificate might lead to a small CA, then to an intermediate CA, then to a large CA whose trust anchor is present in the relying party’s web browser. In a bridged PKI, a certificate chain starting with a user at Company A might lead to Company A’s CA certificate, then to a bridge CA, then to company B’s CA certificate, then to company B’s trust anchor, which a relying party at company B could trust.

http://en.wikipedia.org/wiki/Certification_path_validation_algorithm

Filed under: Security Tagged: Certificate, PKI

Creating a Project with a Visual C++ Application Wizard

Varun Mittal — Sat, 29 May 2010 10:11:08 +0000

Every type of Visual C++ project has an application wizard that helps you generate new projects quickly and easily, modeled from the project template. For details, see Visual C++ Projects.

To open an application wizard, use the New Project dialog box to specify your project properties like the name, or the directory and solution where your project will reside.

To open a Visual C++ application wizard

On the File menu, click New, and then click Project.The New Project dialog box appears.
In the Project Types pane, select the Visual C++ Projects folder. An icon for every type of C++ project appears in the Templates pane.
In the Templates pane, select an icon to choose a project type. A message appears under both panes indicating the type of project you are going to create.
Specify your project properties, or skip this step to use Visual Studio default project properties. See Projects as Containers for details.
Click OK, and the wizard for your project type opens.

When you create a project you can either create a new solution or you can add the project to an existing solution. For more information, see Solutions as Containers.

http://msdn.microsoft.com/en-us/library/92bz82zh(VS.71).aspx

Filed under: Visual C++

CObject Class

Varun Mittal — Sat, 29 May 2010 10:10:04 +0000

It serves as the root not only for library classes such as CFile and CObList, but also for the classes that you write. CObject provides basic services, including

Serialization support
Run-time class information
Object diagnostic output
Compatibility with collection classes

Note that CObject does not support multiple inheritance. Your derived classes can have only one CObject base class, and that CObject must be leftmost in the hierarchy. It is permissible, however, to have structures and non-CObject-derived classes in right-hand multiple-inheritance branches.

You will realize major benefits from CObject derivation if you use some of the optional macros in your class implementation and declarations.

The first-level macros, DECLARE_DYNAMIC and IMPLEMENT_DYNAMIC, permit run-time access to the class name and its position in the hierarchy. This, in turn, allows meaningful diagnostic dumping.

The second-level macros, DECLARE_SERIAL and IMPLEMENT_SERIAL, include all the functionality of the first-level macros, and they enable an object to be “serialized” to and from an “archive.”

For information about deriving Microsoft Foundation classes and C++ classes in general and using CObject, see Using CObject and Serialization.

http://msdn.microsoft.com/en-us/library/7k3448yy(VS.80).aspx

Filed under: Visual C++