Invention Grant
- Patent Title: Changing encryption key of encrypted data
- Patent Title (中): 更改加密数据的加密密钥
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Application No.: US11289067Application Date: 2005-11-29
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Publication No.: US07676040B2Publication Date: 2010-03-09
- Inventor: Oliver Augenstein , Jan Camenisch
- Applicant: Oliver Augenstein , Jan Camenisch
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Garg Law Firm, PLLC
- Agent Rakesh Garg; Jeffrey S LaBaw
- Priority: EP04106881 20041222
- Main IPC: H04L9/16
- IPC: H04L9/16 ; H04L9/28 ; H04L29/06 ; H04L9/18
Abstract:
A method, a system and a computer program for changing an encryption key of data encrypted by a first key and stored on an archive server (40), wherein a conversion is applied to the data, generating recrypted data decryptable by means of a second key, the conversion being generated on a second server (30) and associated with the first key and the second key via a functional operation and transferred from the second server (30) to the archive server (40) via a transfer channel (38).
Public/Granted literature
- US20060215839A1 Method for handling data Public/Granted day:2006-09-28
Information query
