Leif Svalgaard Career Summary

of University of Nagoya, Toyokawa, Aichi, Japan.

Developer of security-related software for the IBM AS/400 using highly

efficient MI (Machine Interface) code.

Developed the PentaSafe Password Manager product that checks encrypted

passwords for users against encrypted words from a large dictionary to

detect users with weak (i.e. "guessable") passwords.

Expert on AS/400 internals at the MI-level.
1994-1998: T.O.S.C. International, Inc. (Houston, TX)
Director of Development.

Responsible for development and maintenance of the ETK (Easy ToolKit)

Product. ETK is a large (1,000,000 lines) application written in Cobol. ETK

is an Application generator that generates Cobol code that will run on any

platform that has a Cobol compiler.
I have written more than half of ETK itself. As ETK's primary goal is to

generate business applications. I'm very familiar with business

applications, having served several times as a consultant for clients

producing such large-scale applications (e.g. at Sysco Foods, County of Los

Angeles, and others).
I have produced versions of ETK for most Cobol compilers on most platforms,

including the Micro Focus compiler on Unix (RS/6000, Sun, HP, ...) and on

PC, the IBM compilers on IBM/MVS/TSO/CICS, IBM/VM/CMS, IBM AS/400, and

others. Because of the nature of ETK, extensive knowledge of how to best

utilize the compiler on a given platform is required, and thus I have that.
Because the lower layers of ETK are written in 'system-oriented' languages

I have extensive experience with several assemblers, C, C++, and even MI

on the As/400.
Since ETK interfaces to any database, I'm knowledgeable in ISAM, VSAM,

RDBS's(such as DB/2) and others. Specifically, what ETK does is to generate

the database DDL and DML (such as SQL), thus requiring intimate knowledge

of the database particulars.

applications, including generating HTML-based webpages directly in your

Cobol programs. All of the above is now technically obsolete.
1992-1993: Quixx (now SPS) Corporation (Amarillo, TX)
Served as Chief Programmer for the Implementation of a major business

application to track engineering parts and assemblies for an electric

utility company (Southwestern Public Service Company, SPS). This project

was done with ETK on IBM/MVS/CICS with DL/I.

platforms, including many now defunct). SEMA Group is the largest software

company in Europe. I was also responsible for 'Methods and Tools'. I also

served as consultant for SEMA on several military projects.

Chief Programmer for development and installation of the largest Telephone

Directory Assistance System in the world - for New York Telephone Company.
1972-1978: Senior Research Physicist at Stanford University, CA,

With special responsibility for computing facilities at the Institute for

Plasma Physics.
1968-1971: System Programmer at computer manufacturer Regnecentralen A/S,

Copenhagen, Denmark.

located at 78 degrees North, 40 degrees West.

teaching assistant at Institute for Numerical Analysis Univ. of Copenhagen.

------ Specific experience ------
1963 Programmed Geodetic Survey problems in Algol.
1964 Assistant at the Institute for Numerical Analysis Univ. of Copenhagen

- programming numerical/graphics problems mostly in assembler.

Meteorological synoptic observations (detailed 'weather maps').

(GIER)for the purpose of system evaluation and early testing of system

software. The simulator was later used to debug the new Algol compiler for

RC4000 in advance of the machine being available.

of the multiprogramming operating system - with supplementary file

system and Command Interpreter - for the Danish-built RC4000

medium-scale computer.

special purpose real-time operating system for the Danish Meteorological

Service.
1971 Developed a multiprogramming system for the Data General NOVA

mini-computer to facilitate its use as a general purpose multi-peripheral

controller.
1972 Was invited to join the Institute for Plasma Physics at Stanford with

special responsibility for the computing facilities at the Institute.

Solar Observatory, patterned after the RC4000 monitor.

for Atmospheric Research (NCAR) in Boulder, Colorado.

Nixon-Breshnev Agreement on the Protection of the Environment. Had the

opportunity to familiarize myself with computing 'Eastern style'. Wrote

plotting software for several Soviet computers, including BESM-6.

atmosphere and interplanetary space. Altogether more than 50 published

research papers spanning the decade 1968-78 (including journals such as

Nature and Science).

computerized retrieval system for telephone directory assistance.

The first customer was to be Michigan Bell in Detroit.
1980-81 With Bo Tveden, redesigned the Directory Assistance System and

re-implemented it for the New York Telephone company. The system consists

of 20 networked midi-computers serving 2000 terminals, handling more than

2 million transactions per day. This system is still in operation and has

never gone down. Only one bug was found during more than 25 years of

operation.

at the Defense Telephone Service in the Pentagon, Washington DC.

itself takes over the voice response to the caller once the (human)

operator has completed the retrieval process.
1984 Joined SOBEMAP (Now SEMA Group), Brussels, Belgium, initially for work

on military communication projects.

develop 100% portable programs (in COBOL). Implementation of ETK on Wang VS

and DEC VAX computers.
1986 Preparation of proposal for UK-Air (a large scale project for

coordination of the air defense of the United Kingdom). This project

included writing programs to simulate real-time systems such as disk

controllers and communications networks to evaluate response time and

loading characteristics.

Implementation (with Pieter Hintjens) of ETK on S/36, IBM PC, and

Data General MV.
1987 Consultant for SHAPE (den Haag, the Netherlands) on communications

systems for the Alternate War Headquarters for Allied Forces Europe.

Oversaw implementation of ETK for IBM 370/CMS with CICS.
1988 Implementation (with J-M Sacre) of ETK for IBM 370/MVS/TSO with

CICS and DB/2.

MI-assembler expertise for AS/400 (data compression).

Gave courses on MI-programming for AS/400.

DPS7.
1992 Implementation (with Marino Stramare) of ETK on HP-3000.

product, although the ideas and techniques behind ETK are universally

valid.
1999 Wrote PentaSafe Password Manager for AS/400 to detect weak passwords.

This involved detection of the password encryption algorithm as well as

finding out the internal structures for storing passwords and user IDs.

I was a "white hat" hacker in the finest classical meaning of the word.

http://www.leif.org/as400. Gave classes in MI for the AS/400 at COMMON.

Palm-Pilot databases to AS/400 databases with the necessary format

conversions. Also wrote the FAST400 program that gives users access

to superior interactive performance on their AS/400s, over and above

that provided by IBM.
2002 Returned to Space Physics. Collaborating with Ed Cliver at

Air Force Research Laboratory. Recent work can be found at

http://www.leif.org/research
2004 Visiting professor at the Solar Terrestrial Environment Laboratory

of University of Nagoya, Toyokawa, Aichi, Japan.