Luis Espinal

Luis Espinal

Fort Lauderdale, Florida, United States
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Vertiv Co (formerly Emerson Network Power.)

About

SCJP cert -…

Activity

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Experience

  • Vertiv Co (formerly Emerson Network Power.)

    Sunrise, FL

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    Ft. Lauderdale

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    Sunrise, FL

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    Sunrise, FL

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    Sunrise, FL

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    Miami/Fort Lauderdale Area

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    Doral, FL

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    Plantation, FL

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    Miami/Fort Lauderdale Area

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    Ft. Lauderdale, FL

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    Miami/Fort Lauderdale Area

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    Miami/Fort Lauderdale Area

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    Miami/Fort Lauderdale Area

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    Miami/Fort Lauderdale Area

Education

  • Florida International University Graphic

    Florida International University

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    Completed all course work required for a MS degree (including Compiler Theory, Algorithms, Network Protocols, Soft. Architecture, Adv. OS.)

    NOTE: Worked but not defended thesis. Therefore, did not graduate.

    Thesis and research work based on role-based/relationship-based distributed authorization mechanisms for CORBA-based distributed systems.

    Tools: GNU C/ C++, CORBA (Visibroker,Tao), Java, UML (Rational Rose), Windows MFC, Perforce, CVS., JLex, Cup, Flex, Yacc, x-kernel…

    Completed all course work required for a MS degree (including Compiler Theory, Algorithms, Network Protocols, Soft. Architecture, Adv. OS.)

    NOTE: Worked but not defended thesis. Therefore, did not graduate.

    Thesis and research work based on role-based/relationship-based distributed authorization mechanisms for CORBA-based distributed systems.

    Tools: GNU C/ C++, CORBA (Visibroker,Tao), Java, UML (Rational Rose), Windows MFC, Perforce, CVS., JLex, Cup, Flex, Yacc, x-kernel (for network protocols.)

    Publications:

    - K. Beznosov, L. Espinal, and Y. Deng, “Performance Considerations for a CORBA-Based Application Authorization Service,” accepted at SEA 2000.

    http://lersse-dl.ece.ubc.ca/record/70


    - L. Espinal, K. Beznosov, and Y. Deng, “Design and Implementation of Resource Access Decision Server,” Center for Advanced Distributed Systems Engineering (CADSE) – Florida International University, Miami, technical report 2000-01, January 2000.

    http://lersse-dl.ece.ubc.ca/record/37

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    While at GD, I enrolled in a grad Comp/EE Eng. program sponsored by General Dynamics. Great course material.


    Courses completed:
    ECE 579S, Computer & Network Security
    ECE 502, Analysis of Probabilistic Signals and Systems
    ECE 578, Cryptography and Data Security
    SYS 511, Systems Integration and Test

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    While on school, I worked as a a full-time Systems Analyst for John Alden Insurance company. During my senior year, at worked at the IT department of the Computer Science Department.

    Technologies used during studies: Ada, GNU C/C++, pthreads, Turbo Pascal (for Numerical Analysis), Linux, Perl, PowerBuilder, Prolog, Emacs Lisp.

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    Activities and Societies: Phi Theta Kappa Honor Society

    First two years involved completing full time course curriculum for English as a Second Language for academic and professional purposes.

    Technologies utilized during studies: Quick Basic, Turbo Pascal, C, C++, x86 Assembly, Delphi, Mathematica, Expert systems (using Attar's XpertRule engine).

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Licenses & Certifications

Publications

  • Performance Considerations for a CORBA-Based Application Authorization Service

    IASTED International Conference Software Engineering and Applications

    Resource Access Decision (RAD) Service allows separation of authorization from application functionality in distributed application systems by providing a logically centralized authorization control mechanism. RAD has attractive features such as decoupling of authorization logic from application logic, simplicity, generality, flexibility, support for complex application level access control, and ease of policy administration in heterogeneous, distributed systems. However, there is a concern of…

    Resource Access Decision (RAD) Service allows separation of authorization from application functionality in distributed application systems by providing a logically centralized authorization control mechanism. RAD has attractive features such as decoupling of authorization logic from application logic, simplicity, generality, flexibility, support for complex application level access control, and ease of policy administration in heterogeneous, distributed systems. However, there is a concern of performance penalty for obtaining authorization decisions from a possibly remote server on each application request. We describe our work in measuring run-time performance of a CORBA-based Application Authorization Service (CAAS), which is compliant with the OMG specification of Resource Access Decision Facility, and draw conclusions about performance considerations in implementation of RAD compliant authorization services. We identify factors, which affect overall run-time performance of the approach and suggest possible solutions.

    Other authors
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  • Design and Implementation of Resource Access Decision Server

    Technical Report - Florida International University

    Decoupling authorization decision logic enables implementation of complex and consistent access control policies across heterogeneous systems. However, this is difficult, if not impossible to implement by exclusively using general-purpose infrastructures such as CORBA Security Service. In response to this limitation of CORBA Security service the Object Management Group (OMG) has adopted a Resource Access Decision (RAD) Facility, an authorization service for distributed systems, as a pre-final…

    Decoupling authorization decision logic enables implementation of complex and consistent access control policies across heterogeneous systems. However, this is difficult, if not impossible to implement by exclusively using general-purpose infrastructures such as CORBA Security Service. In response to this limitation of CORBA Security service the Object Management Group (OMG) has adopted a Resource Access Decision (RAD) Facility, an authorization service for distributed systems, as a pre-final standard. By using RAD facility, developers can implement systems with authorization logic decoupled from application-specific logic and decentralized evaluation and administration of the access policies. This report documents the design and implementation of a Resource Access Decision (RAD) facility. The report covers the different components that comprise a RAD system, their designs, functions and interdependencies. The RAD prototype allows studying the validity of the frame-work and conduction of experiments in the research of distributed access control. Since the design of the prototype is heavily influenced by design patterns, the prototype can easily be maintained and augmented with more complex access control mechanisms.

    Other authors
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Languages

  • English

    Full professional proficiency

  • Spanish

    Native or bilingual proficiency

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