Title:
高遅延、低帯域幅環境におけるＮＥＴＢＡＣＫＵＰデータ復号のためのシステムおよび方法
Document Type and Number:
Japanese Patent JP5922931
Kind Code:
B2
Abstract:
A system and method for efficient transfer of encrypted data over a low-bandwidth network. A backup server and a client computer are coupled to one another via a first network. The backup server is coupled to a remote data storage via another network, such as the Internet, also referred to as a cloud. The backup server encrypts received data for backup from the client computer. Cryptography segment and sub-segment sizes may be chosen that are aligned on a byte boundary with one another and with selected backup segment and sub-segment sizes used by backup software on the remote data storage. A selected cryptography algorithm has a property of allowing a given protected sub-segment with the cryptography sub-segment size to be decrypted by initially decrypting an immediate prior protected sub-segment that has the same cryptography sub-segment size. Therefore, the size of data transmitted via the cloud may be smaller than the cryptography segment size.
Inventors:
Thomas G Clifford
Jeremy Dee Swift
Jeremy Dee Swift
Application Number:
JP2012007553A
Publication Date:
May 24, 2016
Filing Date:
January 17, 2012
Export Citation:
Assignee:
Symantec Corporation
International Classes:
G09C1/00
Domestic Patent References:
| JP2009218751A | ||||
| JP2004318154A | ||||
| JP2002042424A | ||||
| JP2007183514A |
Foreign References:
| US20030115447 |
Attorney, Agent or Firm:
Kenji Sugimura