Abstract: A system to improve communication security in cluster machine processing may include interconnected computers that can jointly process data. The system may also include a shared secret key used by each of the interconnected computers to encrypt, decrypt, and/or authenticate data being sent, or received, from one of the interconnected computers to another of the interconnected computers. The system may further include a new shared secret key used by each of the interconnected computers to encrypt, decrypt, and/or authenticate data being sent, or received, from one of the interconnected computers to another of the interconnected computers. In addition, the new shared secret key may coexist with the shared secret key without adversely affecting the joint processing of data performed by the plurality of interconnected computers.

Abstract: A system to improve communication security in cluster machine processing may include interconnected computers that can jointly process data. The system may also include a shared secret key used by each of the interconnected computers to encrypt, decrypt, and/or authenticate data being sent, or received, from one of the interconnected computers to another of the interconnected computers. The system may further include a new shared secret key used by each of the interconnected computers to encrypt, decrypt, and/or authenticate data being sent, or received, from one of the interconnected computers to another of the interconnected computers. In addition, the new shared secret key may coexist with the shared secret key without adversely affecting the joint processing of data performed by the plurality of interconnected computers.

Abstract: The problem of providing and interacting with a number of different security mechanisms in a clustered data processing environment is solved by providing a Mechanism Abstract Layer which presents a consistent interface to applications running on the various nodes within the cluster. Mechanism Pluggable Modules are provided for each security mechanism that one wishes to employ. The Pluggable Modules provide a mechanism for mapping individualized security mechanism parameters through an interface with the Mechanism Abstract Layer. This provides a consistent interface for applications running on the nodes and it also avoids costly adaptations that would otherwise be necessary to accommodate new security mechanisms or variations in prior security mechanisms.

Abstract: A functional testing and evaluation technique is provided employing an abstraction matrix that describes a complex software component to be tested. The abstraction matrix includes at least one test case scenario and mapped expected results therefore. Test cases are derived from the at least one test case scenario and used to test the software component, thereby generating test results. The test results are automatically evaluated using the abstraction matrix. The evaluating includes comparing a test case to the at least one test case scenario of the abstraction matrix and if a match is found, comparing the test result for that test case with the mapped expected result therefore in the abstraction matrix.

Abstract: A functional testing technique is provided employing an abstraction matrix that describes a complex software component to be tested. The abstraction matrix includes state and event information. The technique is an automated process which parses the abstraction matrix to generate test cases and mapped expected results therefore. The test cases are separated based on layers of the software component and data structures are associated with the separated test cases of the layers. The data structures allow the test cases of the various layers to be uncorrelated. The software component executable is employed to generate test case execution threads from the test cases and mapped expected results for a particular layer. These execution threads can then be executed in parallel, thereby testing the software component.

Abstract: The problem of providing and interacting with a number of different security mechanisms in a clustered data processing environment is solved by providing a Mechanism Abstract Layer which presents a consistent interface to applications running on the various nodes within the cluster. Mechanism Pluggable Modules are provided for each security mechanism that one wishes to employ. The Pluggable Modules provide a mechanism for mapping individualized security mechanism parameters through an interface with the Mechanism Abstract Layer. This provides a consistent interface for applications running on the nodes and it also avoids costly adaptations that would otherwise be necessary to accommodate new security mechanisms or variations in prior security mechanisms.

Abstract: A functional testing and evaluation technique is provided employing an abstraction matrix that describes a complex software component to be tested. The abstraction matrix includes at least one test case scenario and mapped expected results therefore. Test cases are derived from the at least one test case scenario and used to test the software component, thereby generating test results. The test results are automatically evaluated using the abstraction matrix. The evaluating includes comparing a test case to the at least one test case scenario of the abstraction matrix and if a match is found, comparing the test result for that test case with the mapped expected result therefore in the abstraction matrix.

Abstract: A functional testing technique is provided employing an abstraction matrix that describes a complex software component to be tested. The abstraction matrix includes state and event information. The technique is an automated process which parses the abstraction matrix to generate test cases and mapped expected results therefore. The test cases are separated based on layers of the software component and data structures are associated with the separated test cases of the layers. The data structures allow the test cases of the various layers to be uncorrelated. The software component executable is employed to generate test case execution threads from the test cases and mapped expected results for a particular layer. These execution threads can then be executed in parallel, thereby testing the software component.