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Method, system and securing means for data archiving with automatic encryption and decryption by fragmentation of keys

A security device and data archiving technology, applied in computer security devices, digital data protection, electronic digital data processing and other directions, can solve the problem of lack of security protection

Inactive Publication Date: 2007-08-29
TECNOSTORE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There is no third key and no security to prevent the first key from being read from location

Method used

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  • Method, system and securing means for data archiving with automatic encryption and decryption by fragmentation of keys
  • Method, system and securing means for data archiving with automatic encryption and decryption by fragmentation of keys
  • Method, system and securing means for data archiving with automatic encryption and decryption by fragmentation of keys

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Embodiment Construction

[0022] FIG. 1 shows a block diagram of a preferred embodiment of a system for archiving data 9 , 10 based on the method according to the invention. A plurality (two as an example here) of client stations 1 is provided. Cleartext (ie unencrypted) data 9 is stored thereon. Furthermore, for each client station 1 a security device 2 is provided. The security device 2 is used for encryption and decryption of the data 9 , 10 . To this end, it comprises at least a first key 6 and a temporary second key 7 or fragments 6,7. The security device 2 communicates with the archive station 4 via the network 3 . In the archive station 4 the encrypted data 10 are stored in a data memory 11 . Also stored in the key memory 12 is a second key 7 which in each case belongs to the encrypted data 10 .

[0023] The data 9 , 10 can be present, in particular stored and / or transmitted, in the form of plaintext data 9 as well as encrypted data 10 . If the term "data" is used in this document without ...

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Abstract

A data archiving method uses automatic encoding and decoding in which during filing of data (9,10) data is transferred from a customer station (1) to a security device (2) for encoding and transfer to an archive station (4). During requesting of data the data is transferred from the archive station to the security device (20 where it is decoded and transferred to the customer station (1). At least a first and a second key are used for encoding and decoding the data in which the second key (7) at least at times between encoding and decoding is swapped and locally erased in the security device.In the method for data archiving with automatic en- and decryption data (9, 10) are exchanged between a client station (1) and an archive station (4). A securing means (2) connected between the stations (1, 4) encrypts the plain data (9) which are transmitted towards the archive station (4) and decrypts the encrypted data (10) which are transmitted towards the client station (1). The encryption is carried out with at least two keys (6, 7). One of the two keys (6, 7) is swapped out by transmitting it to the archive station (4) and deleting it locally, i.e. in the securing means (2), after the encryption. If the securing station (2) is stolen, the encrypted data (10) on the archive station (4) can be accessed, however their decryption can be prevented in a simple, reliably and comprehensible manner by deleting the swapped out key (7) in the archive station (4).

Description

[0001] Cross References to Related Applications [0002] This application claims priority from European Patent Application No. 04015475.9 filed 1 July 2004, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The invention relates to a method for data archiving with automatic encryption and decryption according to the preamble of claim 1 . The invention also relates to a system and a security device for data archiving with automatic encryption and decryption according to the preamble of claim 29 . [0004] The term "archive" in this document is to be understood as covering storage in an archive as well as retrieval from an archive. Background technique [0005] The method and system are used to archive data from one or more client stations on an archive station. Archiving data on a central archive site has better security against data loss and data theft. The archive station can be installed in a room with special securit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/00G06F21/62G06F21/72
CPCG06F21/72G06F21/6218G06F2221/2143G06F2221/2153G06F2221/0711G06F2221/2115G06F2221/2107G06F21/1014
Inventor B·R·克兹曼
Owner TECNOSTORE