| 发明名称 |
METHODS FOR VERIFYING DATA INTEGRITY |
| 摘要 |
A method for verifying the integrity of data in a message by a data processing device, the message comprising a plurality of packets, the method comprising: receiving, at the device from a first resource, a manifest associated with the message, the manifest comprising a plurality of group check values for the plurality of packets; receiving, at the device, from the first or a different resource, the message; generating a first progression of rolling hashes for the plurality of packets; deriving group check values from the first progression of rolling hashes for groups of the plurality of packets along one or more paths; verifying the integrity of the data in the message based on or in response to a determination that the derived group check values correspond to the plurality of group check values in the manifest. |
| 申请公布号 |
US2017070890(A1) |
申请公布日期 |
2017.03.09 |
| 申请号 |
US201615258117 |
申请日期 |
2016.09.07 |
| 申请人 |
ARM IP Limited ;ARM Ltd |
发明人 |
Luff Geraint;Moran Brendan;Meriac Milosch;Pegourie-Gonnard Manuel |
| 分类号 |
H04W12/12;H04L9/06;H04L29/06;H04L9/32 |
主分类号 |
H04W12/12 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for verifying the integrity of data in a message received by a data processing device, the message comprising a plurality of packets, the method comprising:
receiving, at the device from a first resource, a manifest associated with the message, the manifest comprising a plurality of group check values for the plurality of packets; receiving, at the device, from the first or a different resource, the message; generating a first progression of rolling hashes for the plurality of packets; deriving group check values from the first progression of rolling hashes for groups of the plurality of packets along one or more paths; verifying the integrity of the data in the message based on or in response to a determination that the derived group check values correspond to the plurality of group check values in the manifest. |
| 地址 |
Cambridge GB |
