Adrian M Walker

US Patent:

6691132, Feb 10, 2004

Filed:

Dec 11, 2001

Appl. No.:

10/014970

Inventors:

Adrian D. Walker - Bristol CT
D. Paul Benjamin - Berkeley Heights NJ

Assignee:

Reengineering LLC - Bristol CT

International Classification:

G06F 1730

US Classification:

707102, 707 10

Abstract:

A method and system are described to allow the encoding and compression of one or more tables of data by splitting each table into two or more sub-tables and allowing the splitting to be followed by permutation of the sub-tables. The method may also include the construction of an interconnection table using a collection of permutations and keys or key numbers, and to optionally allow the permuted tables to be padded with additional data, such that the original tables cannot be queried or reconstructed from the sub-tables without knowledge of the permutations and keys. The method and system also allows efficient querying of the sub-tables to retrieve information that was in the original tables, optionally over a network, and efficient reconstruction of the original tables, given knowledge of the permutations and key numbers. The method and system also supports billing for authorized access to tables of data, management of the permutations via index numbers, and rapid changes in encoding to guard against key theft.

US Patent:

20030165242, Sep 4, 2003

Filed:

Nov 19, 2001

Appl. No.:

09/988300

Inventors:

Adrian Walker - Bristol CT, US

International Classification:

H04K001/00

US Classification:

380/277000

Abstract:

A method and system are described to allow the encryption and decryption of a plaintext string of symbols, e.g. a paragraph of English text, using a key consisting in part of an executable computer program. The method and system is such that an attacker who seeks to recover the plaintext from the ciphertext, without knowing the key, can produce a very large number of decrypt attempts that are plausible, but unrelated in meaning to the original plaintext. However the attacker cannot know whether any one of the attempted decrypts is the correct original plaintext. A property of the method and system is that, if the same plaintext is encrypted twice using the same key, the respective ciphertexts are normally different, and normally have different lengths.

US Patent:

20030176998, Sep 18, 2003

Filed:

Dec 31, 2001

Appl. No.:

10/039534

Inventors:

Adrian Walker - Bristol CT, US

International Classification:

G06F017/27

US Classification:

704/009000

Abstract:

A method and system are described for highly declarative specification of master-detail applications of relational databases, by end users who need not be trained in programming or in database administration. The method and system includes a notation in which end users can specify applications using their own English words and phrases, and by using place holders that are set out on indented lines to specify a master-detail hierarchy. The invention improves on the prior art by allowing a wider range of applications to be specified without programming, and without work by database administrators. The invention also improves on the prior art by automatically generating explanations showing what parts of the specification, and what supporting facts from the database, have been used in obtaining an answer to a question.