Apparatus and method for storing data
First Claim
1. An apparatus for storing data comprising an original identity (OID) and associated descriptive information (DI), characterised bya first encrypting means (50) which is arranged, by means of a first algorithm (ALG1), to encrypt the original identity (OID) to an update identity (UID),a second encrypting means (50) which is arranged, by means of a reversible algorithm (ALG2), to encrypt the update identity (UID) to a storage identity (SID), which is to be stored along with associated descriptive information (DI) as a record (P) on a storage medium (30, 40), anda decrypting means (50) which is arranged, at times when the storage identities (SID) of selected stored records (P) are to be replaced with new storage identities (SID'"'"'), to decrypt these storage identities (SID) in order to recreate the corresponding update identities (UID),the second encrypting means (50) being arranged, at said times and by means of an altered reversible algorithm (ALG2'"'"'), to encrypt the recreated update identities (UID) to new storage identities (SID'"'"'), which are to replace the previous storage identities (SID).
7 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for storing data comprising an original identity(OID) and associated descriptive information(DI) are disclosed. By means of a first algorithm(ALG1), the original identity(OID) is encrypted to an update identity(UID) which, by means of a reversible algorithm(ALG2), is encrypted to a storage identity(SID) which is stored as a record(P) on a storage medium along with associated descriptive information(DI). At the times when storage identities(SID) of selected records(P) are to be replaced with new storage identities(SID'"'"'), the storage identities(SID) are decrypted in order to recreate the corresponding update identities(UID), which then are encrypted, by means of a new altered reversible algorithm(ALG2'"'"'), to new storage identities(SID'"'"') intended to replace the previous storage identities (SID).
-
Citations
21 Claims
-
1. An apparatus for storing data comprising an original identity (OID) and associated descriptive information (DI), characterised by
a first encrypting means (50) which is arranged, by means of a first algorithm (ALG1), to encrypt the original identity (OID) to an update identity (UID), a second encrypting means (50) which is arranged, by means of a reversible algorithm (ALG2), to encrypt the update identity (UID) to a storage identity (SID), which is to be stored along with associated descriptive information (DI) as a record (P) on a storage medium (30, 40), and a decrypting means (50) which is arranged, at times when the storage identities (SID) of selected stored records (P) are to be replaced with new storage identities (SID'"'"'), to decrypt these storage identities (SID) in order to recreate the corresponding update identities (UID), the second encrypting means (50) being arranged, at said times and by means of an altered reversible algorithm (ALG2'"'"'), to encrypt the recreated update identities (UID) to new storage identities (SID'"'"'), which are to replace the previous storage identities (SID).
-
11. A method for storing data comprising an original identity (OID) and associated descriptive information (DI), characterised by the steps of
encrypting the original identity (OID) to an update identity (UID) by means of a first algorithm (ALG1), encrypting the update identity (UID) to a storage identity (SID) by means of a reversible algorithm (ALG2), storing the storage identity (SID) and the descriptive information (DI) as a record (P) on a storage medium (30, 40), and performing the following substeps at times when the storage identities (SID) of selected stored records (P) are to be replaced with new storage identities (SID'"'"'): -
decrypting the storage identities (SID) of the selected records (P) in order to recreate the corresponding update identities (UID), altering the reversible algorithm (ALG2) and encrypting, by means of the altered reversible algorithm (ALG2'"'"'), the recreated update identities (UID) to new storage identities (SID'"'"'), and replacing the storage identities (SID) of the selected records (P) with the new storage identities (SID'"'"'). - View Dependent Claims (12, 13, 14, 15)
-
Specification