International Business Machines Corporation

Walter Barlett Farrell

Richard Henry Guski

John C Dayka

Mark A Nelson

Birgit Monika Pfitzmann

Guenter Karjoth

Matthias Schunter

James W Sweeny

Linda Nancy Betz

Michael P Waidner

Thomas J Szczygielski

Eric Rosenfeld

Deborah F Mapes

John M Thompson

Alan P Dooley

Arthur L Fitzpatrick, Iii

Russell D Hardgrove

Christine A Marusek

A method, apparatus and program storage device for program verification in an information handling system in which an application program runs on an operating system having a signature verification function for verifying a digital signature of the application program. Upon loading of the application program, the signature verification function of the operating system verifies the digital signature of the application program and, if the digital signature is verified, initiates execution of the application program. Upon initiation of execution of the application program, a verification testing function associated with the application program tests the signature verification function of the operating system by presenting to it a sequence of test digital signatures in a specified pattern of true and false signatures. If its test of the signature verification function of the operating system is successful, the application program initiates normal execution. Otherwise, the application program terminates without initiating normal execution.

Method and apparatus for transitive program verification

Processing within a computing environment is facilitated by: determining by a local security manager of a first system in a first security domain whether a local security context of a user is acceptable to a second system in a second security domain; responsive to the user's security context being unacceptable to the second system, creating by a local security manager of the second system a runtime security context for the user in the second system; and providing the first system with a reference to the runtime security context for the user in the second system which is resolvable within the computing environment or a portable representation of the runtime security context for the user in the second system, the reference or the portable representation being subsequently returned to the second system with a request from the first system to process work at the second system.

Cross security-domain identity context projection within a computing environment

A data access control facility is implemented by assigning personally identifying information (PII) classification labels to PII data objects, with each PII data object having one PII classification label assigned thereto. The control facility further includes at least one PII purpose serving function set (PSFS) comprising a list of application functions that read or write PII data objects. Each PII PSFS is also assigned a PII classification label. A PII data object is accessible via an application function of a PII PSFS having a PII classification label that is identical to or dominant of the PII classification label of the PII object. A user of the control facility is assigned a PII clearance set which contains a list of at least one PII classification label, which is employed in determining whether the user is entitled to access a particular function.

Implementation and use of PII data access control facility employing personally identifying information labels and purpose serving function sets

Implementation and use of a PII data access control facility employing personally identifying information labels and purpose serving functions sets

An identity vectoring method is accomplished by matching a distinguished name or partial distinguished name from a digital certificate with a distinguished name mapping record. A data field in the distinguished name mapping record includes either a variable name or a user ID. The variable name corresponds to any environmental factor. The next mapping record to be considered, the criteria mapping record, is determined by substituting the environmental factor for the variable name in the data field. A data field in the criteria mapping record includes either a variable name or a user ID. The process completes when a mapping record containing only a user ID is encountered or when no matching criteria mapping records are found.

Identity vectoring via chained mapping records

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Woodstock, NY, United States of America

Walter Barlett Farrell