Robert R Frank

6377687, Apr 23, 2002

Jul 29, 1998

09/124300

Mark H. Etzel - Harvard MA
Robert John Frank - Silver Spring MD
Daniel Nelson Heer - Newton NH
Robert Joseph McNelis - Columbia MD
Semyon B. Mizikovsky - Morganville NJ
Robert John Rance - Andover MA
R. Dale Shipp - Columbia MD

Lucent Technologies Inc. - Murray Hill NJ

H04L 928

380 28, 380 42

Methods and apparatus for enhanced CMEA, or ECMEA, processing. A forward ECMEA and a reverse ECMEA process are provided. The forward ECMEA process decrypts text encrypted by the reverse ECMEA process and the reverse ECMEA process decrypts text encrypted by the forward ECMEA process. The forward ECMEA process employs a transformation, an iteration of the CMEA process, and an inverse transformation. The reverse ECMEA process employs a reverse transformation, an iteration of the CMEA process, and a reverse inverse transformation. The transformations and inverse transformations, and the iteration of the CMEA process, employ secret offsets to improve security. The transformations and the iteration of the CMEA process also employ an enhanced tbox function using an involutary lookup table.

6418224, Jul 9, 2002

May 5, 1998

09/073131

Mark H. Etzel - Harvard MA
Robert John Frank - Silver Spring MD
Daniel Nelson Heer - Newton NH
Robert Joseph McNelis - Columbia MD
Semyon B. Mizikovsky - Morganville NJ
Robert John Rance - Andover MA
R. Dale Shipp - Columbia MD

Lucent Technologies Inc. - Murray Hill NJ

H04M 166

380247, 380255, 380270, 380274, 380284, 380281, 455410

A self-inverting enhanced CMEA encryption system suitable for use in wireless telephony. An unprocessed text message is introduced into the system and subjected to a first iteration of a CMEA process, using a first CMEA key to produce a first intermediate message, a first intermediate processed text message, a first intermediate ciphertext message or the like. The first intermediate processed text message is subjected to a further iteration of the CMEA process, using a second CMEA key, to produce a second intermediate processed text message. The second intermediate processed text message is subjected to a final iteration of the CMEA process, using the first CMEA key, to produce the final processed text message. Security may be additionally enhanced by subjecting each message to an input/output transformation before and after each iteration of the CMEA process. In a three-iteration process, a total of four input/output transformations are used with the first and fourth input/output transformations being identical, and with the second and third input/output transformations being identical.

6876744, Apr 5, 2005

Jul 22, 1998

09/120763

Mark H. Etzel - Harvard MA, US
Robert John Frank - Silver Spring MD, US
Daniel Nelson Heer - Newton NH, US
Robert Joseph McNelis - Columbia MD, US
Semyon B. Mizikovsky - Morganville NJ, US
Robert John Rance - Andover MA, US
R. Dale Shipp - Columbia MD, US

Lucent Technologies Inc. - Murray Hill NJ

H04L009/32

380 28, 380247, 380281

Methods and apparatus for enhanced CMEA, or ECMEA, processing. A forward ECMEA and a reverse ECMEA process are provided. The forward ECMEA process decrypts text encrypted by the reverse ECMEA process and the reverse ECMEA process decrypts text encrypted by the forward ECMEA process. The forward ECMEA process employs a first transformation, an iteration of the CMEA process, and a second transformation. The reverse ECMEA process employs a first inverse transformation, an iteration of the CMEA process, and a second inverse transformation. The transformations and inverse transformations, and the iterations of the CMEA process, employ secret offsets to improve security. The transformations and the iteration of the CMEA process also employ an enhanced tbox function using an involutary lookup table.

62664115, Jul 24, 2001

Apr 13, 1998

9/059107

Mark H. Etzel - Harvard MA
Robert John Frank - Silver Spring MD
Daniel Nelson Heer - Newton NH
Robert Joseph McNelis - Columbia MD
Semyon B. Mizikovsky - Morganville NJ
Robert John Rance - Andover MA
R. Dale Shipp - Columbia MD

Lucent Technologies Inc. - Murray Hill NJ

H04K 100

380 28

An enhanced CMEA encryption system suitable for use in wireless telephony. A plaintext message is introduced into the system and subjected to a first iteration of a CMEA process, using a first CMEA key to produce an intermediate ciphertext. The intermediate ciphertext is then subjected to a second iteration of the CMEA process using a second CMEA key to produce a final ciphertext. Additional security is achieved by subjecting the plaintext and intermediate ciphertext to input and output transformations before and after each iteration of the CMEA process. The CMEA iterations may be performed using an improved use of a tbox function which adds permutations to a message or intermediate crypto-processed data. Decryption is achieved by subjecting a ciphertext message to the reverse order of the steps used for encryption, replacing the input and output transformations by inverse output and inverse input transformations, respectively, as appropriate.

62333372, May 15, 2001

Apr 13, 1998

9/059116

Mark H. Etzel - Harvard MA
Robert John Frank - Silver Spring MD
Daniel Nelson Heer - Newton NH
Robert Joseph McNelis - Columbia MD
Semyon B. Mizikovsky - Morganville NJ
Robert John Rance - Andover MA
R. Dale Shipp - Columbia MD

Lucent Technologies Inc. - Murray Hill NJ

H04K 100

380 28

An enhancement to the use of a tbox function for CMEA encryption. Offsets are generated for application of the tbox function to a message, using secret values and previously encrypted message octets. The offsets are used to permute the message for application of the tbox function. For the first message of a call, the previously encrypted message octets are replaced by an initialization value. In a system employing a single iteration of CMEA encryption, first and second offsets are generated. In a system employing two iterations of CMEA encryption, first, second, third and fourth offsets are generated, with the first and second offsets being used in the first iteration of CMEA encryption and the third and fourth offsets being used in the second iteration of CMEA encryption.

46433430, Feb 17, 1987

Sep 13, 1985

6/776000

Mark Goldman - Weston MA
Robert Frank - Andover MA
Craig Roberts - Amesbury MA
Norman Jacobs - Andover MA

Eastern Canvas Products, Inc. - Ward Hill MA

B62J 700

224275

A cantilevered article carrier assembly for attachment to the underside of the seat of a cycle, particularly a bicycle. A fabric bag is secured to one end of a support arm. A bracket is mounted to the underside of the bicycle seat, and the support arm projects through a slot in the bracket so that the other, free end thereof rests in engagement with the underside of the bicycle seat. A Velcro strap is provided on the bag to secure the bag to the bicycle seat support to tension the support arm about the bracket and to prevent the support arm from sliding out of the bracket. The bag includes a plastic insert which is folded about a perforated hinge into the desired shape to maintain the shape of the bag. The bag may be quickly removed from the bicycle by release of the Velcro strap.