公开(公告)号：US11640480B2

公开(公告)日：2023-05-02

申请号：US15733777

申请日：2019-03-19

申请人： BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY

发明人： Fabio Giubilo ,  Fadi El-Moussa ,  Mark Shackleton

IPC分类号： G06F21/00 ,  G06F21/62 ,  G06F21/60 ,  G06F21/64

摘要： A computer implemented method of sharing a data message containing multiple data fields between a provider computer system and a consumer computer system, wherein the provider and consumer computer systems have mutual mistrust, is disclosed.

公开(公告)号：US20200220714A1

公开(公告)日：2020-07-09

申请号：US16738140

申请日：2020-01-09

申请人： British Telecommunications Public Limited Company

发明人： Fadi El-Moussa ,  Fabio Giubilo

IPC分类号： H04L9/08 ,  H04L29/06 ,  H04L9/06 ,  H04W12/00

摘要： A computer implemented method of protecting data in a message for communication from a sender to a receiver, the sender and receiver sharing a secret, the method including splitting the message into a plurality of ordered message blocks, the order being a proper order such that an aggregation of the blocks in the proper order constitutes the message; generating a hash value for each message block, each hash value being generated on the basis of at least a content of the block and the secret; generating, for each block, an encoded indication of a position of the block in the proper order of blocks, the encoding being reversible and based on at least the hash value for the block and a position of the block in the proper order; communicating the blocks to the receiver in an order different to the proper order so as to obfuscate the message; and communicating the encoded indications to the receiver such that the blocks can be reassembled by the receiver in the proper order on the basis of the shared secret.