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1. US20170344580 - Method and system for transferring trust across block chain segments

Office United States of America
Application Number 15166411
Application Date 27.05.2016
Publication Number 20170344580
Publication Date 30.11.2017
Grant Number 10417188
Grant Date 17.09.2019
Publication Kind B2
IPC
G06F 16/174
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
17Details of further file system functions
174Redundancy elimination performed by the file system
G06F 16/13
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
13File access structures, e.g. distributed indices
H04L 9/32
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system
CPC
G06F 16/137
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
13File access structures, e.g. distributed indices
137Hash-based
G06F 16/1752
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
16Information retrieval; Database structures therefor; File system structures therefor
10File systems; File servers
17Details of further file system functions
174Redundancy elimination performed by the file system
1748De-duplication implemented within the file system, e.g. based on file segments
1752based on file chunks
H04L 9/3239
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3236using cryptographic hash functions
3239involving non-keyed hash functions, e.g. modification detection codes [MDCs], MD5, SHA or RIPEMD
H04L 9/3247
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
9Cryptographic mechanisms or cryptographic; arrangements for secret or secure communication
32including means for verifying the identity or authority of a user of the system ; or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
3247involving digital signatures
H04L 2209/38
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
2209Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
38Chaining, e.g. hash chain or certificate chain
Applicants MasterCard International Incorporated
Inventors David J. King
Agents Buchanan Ingersoll & Rooney PC
Title
(EN) Method and system for transferring trust across block chain segments
Abstract
(EN)

A method for generating a segmented blockchain includes: storing a first blockchain, the blockchain being comprised of blocks including a recent block, the recent block including a corresponding block header and transaction values; generating a recent hash value via hashing the corresponding block header; writing a terminal block to the first blockchain, the terminal block including a terminal block header comprised of the recent hash value, an activated terminal flag, and a forward reference identifier; generating a terminal hash value via hashing the terminal block header; generating a second blockchain, the second blockchain being comprised of a starting block, the starting blocking including a starting block header comprised of the terminal hash value and an activated starting flag; and transmitting the terminal block and the second blockchain to one or more computing devices associated with the first blockchain.

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