[특허]System and method of verifying cryptographic postage evidencing using a fixed key set

System and method of verifying cryptographic postage evidencing using a fixed key set 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H04L-009/00
출원번호	US-0340592 (1999-06-28)
발명자 / 주소	Cordery Robert A. Lee David K. Pauly Steven J. Pintsov Leon A. Ryan Jr. Frederick W. Weiant Jr. Monroe A.
출원인 / 주소	Pitney Bowes Inc.
대리인 / 주소	Malandra, Jr.
인용정보	피인용 횟수 : 35 인용 특허 : 25

초록 ▼

A method for controlling keys used in the verification of encoded information generated by a transaction evidencing device and printed on a document comprises the steps of generating a plurality of random verifier master keys to obtain a set of verifier master keys consisting of a fixed number of keys; generating at least one pointer by applying a psuedorandom algorithm to data unique to the transaction evidencing device; calculating a plurality of verifier token keys to obtain a verifier token key set corresponding to the set of verifier master keys; encrypting the verifier token key set with a privacy key; and distributing the set verifier token keys and the privacy key to verifiers. The token keys are a function of the verifier master keys and a code valid for a limited time. The pointer algorithm is an appropriate symmetric key cryptographic algorithm and the code is function of a date dependent parameter. The master keys are distributed to postal and vendor data centers.

대표청구항 ▼

[ What is claimed is:] [1.] A method for providing keys used in the verification of encoded information generated by a transaction evidencing device and printed on a document, the method comprising the steps of:generating a plurality of random verifier master keys to obtain a set of verifier master keys consisting of a fixed number of keys;generating at least one pointer by applying a psuedorandom algorithm to data unique to the transaction evidencing device;calculating a plurality of verifier token keys to obtain a verifier token key set corresponding to the set of verifier master keys; anddistributing the verifier token key set to verifiers.

이 특허에 인용된 특허 (25)

Hardy Douglas A. (Mesa AZ) Lewis Leslie K. (Scottsdale AZ) Altschuler Barry N. (Scottsdale AZ), Algorithm independent cryptographic key management.
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Sansone Ronald P. (Weston CT) Schumacher Karl H. (Westport CT) Keating Raymond (Purdys NY) Wall Joseph W. (Monroe CT) Joshi Uday W. (Wilton CT), Central postage data communication network.
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Matyas ; Jr. Stephen M. (Manassas VA) Meyer Carl H. W. (Kingston NY) Brachtl Bruno O. (Boeblingen DEX), Controlled use of cryptographic keys via generating station established control values.
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Ehrsam William F. (Kingston NY) Elander Robert C. (Saugerties NY) Hollis Lloyd L. (Cary NC) Lennon Richard E. (Woodstock NY) Matyas Stephen M. (Poughkeepsie NY) Meyer Carl H. W. (Kingston NY) Oseas J, Cryptographic communication security for multiple domain networks.
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Ehrsam William F. (Kingston NY) Elander Robert C. (Saugerties NY) Matyas Stephen M. (Poughkeepsie NY) Meyer Carl H. W. (Kingston NY) Powers Robert L. (West Hurley NY) Prentice Paul N. (Hyde Park NY) , Cryptographic communication security for single domain networks.
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Baker Walter J. ; Bator Feliks ; Cordery Robert A. ; Hunter Kevin D. ; Lawton Kathryn V. ; Loglisci Louis J. ; Pauly Steven J. ; Pintsov Leon A. ; Ryan ; Jr. Frederick W. ; Weiant ; Jr. Monroe A. ; H, Cryptographic key management and validation system.
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Matyas Stephen M. (Manassas VA), Cryptographic method for updating financial records.
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Cordery Robert A. (Danbury CT) Pauly Steven J. (New Milford CT) Pintsov Leon A. (West Hartford CT), Electronic data interchange postage evidencing system.
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Kim Hyung-Kun Paul ; Cordery Robert A. ; Pintsov Leon A., Encryption key control system for mail processing system having data center verification.
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Zeidler Howard M. (Palo Alto CA), End-to-end encryption system and method of operation.
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Pastor Jose (Stamford CT), Error tolerant 3x3 bit-map coding of binary data and method of decoding.
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Pollard Alan J. (Winnipeg CAX) Lemire James R. (Winnipeg CAX), Key management system for open communication environments.
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Pastor Jose (Medinaceli CT ESX) Brookner George M. (Norwalk CT) Cordery Robert A. (Danbury CT) Kim Hyung-Kun P. (Wilton CT), Mail processing system including data center verification for mailpieces.
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Pastor Jose (191 Wilton Rd. Westport CT 06880), Method and apparatus for authenticating messages.
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Abraham Dennis G. ; Hite Richard K., Method and apparatus for initialization of cryptographic terminal.
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Eckert Alton B. (Norwalk CT), Method and apparatus for verifying postage.
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Baker Walter J. (Stratford CT) Bator Feliks (Easton CT) Cordery Robert A. (Danbury CT) D\Ippolito Frank M. (Derby CT) Hunter Kevin D. (Stratford CT) Lawton Kathryn V. (Branford CT) Lee David K. (Monr, Method of manufacturing generic meters in a key management system.
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Cordery Robert A. (Danbury CT) Braun John F. (Weston CT) D\Ippolito Frank M. (Derby CT) Lawton Kathyrn V. (Branford CT) Pauly Steven J. (New Milford CT) Pintsov Leon A. (West Hartford CT) Ryan ; Jr. , Method of token verification in a key management system.
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Fougere Guy L. (Easton CT) Hunter Kevin D. (Redbank NJ) Sansone Ronald P. (Weston CT) Schmidt ; Jr. Alfred C. (Wilton CT), Postage and mailing information applying system.
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Sansone Ronald P. (Weston CT) Fougere Guy L. (Easton CT), Postage and mailing information applying system.
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Pastor Jose (Westport CT), Reliable document authentication system.
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Marshall Alan D. (Merchants Landing GB2) Mitchell Christopher J. (Codford GB2) Proudler Graeme J. (Meade Park GB2), Secure messaging systems.
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Fox Barbara L. ; Waters Lester L. ; Spelman Jeffrey F. ; Seidensticker Robert B. ; Thomlinson Matthew W., System and method for secure electronic commerce transactions.
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Edelmann George B. (Wilton CT) Hunter Kevin D. (Redbank NJ) Muller Arno (Westport CT) Schmidt ; Jr. Alfred C. (Wilton CT), System for detecting unaccounted for printing in a value printing system.
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Edelmann George B. (Wilton CT) Muller Arno (Westport CT), System for detecting unaccounted for printing in a value printing system.
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이 특허를 인용한 특허 (35)

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System and method of verifying cryptographic postage evidencing using a fixed key set 원문보기