Computer System and Method for Storing Data
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Accused Products
Abstract
A method is provided for generating a first key to encode and/or decode data and a first pointer, with said data stored and/or storable on a first data processing system in a memory area identified by said first pointer, comprising the following steps: recursive generating of said first key from a second key, recursive generating of said first pointer from a second pointer, with the number of recursions for implementing the recursive generating of said first key and said first pointer determined by an index value.
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Citations
46 Claims
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1-29. -29. (canceled)
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30. A method for generating a first key to encode and/or decode data and a first pointer, with said data stored in an encoded form and/or storable in an encoded form on a first data processing system in a memory area identified by said first pointer, comprising the following steps:
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recursive generating of said first key from a second key, recursive generating of said first pointer from a second pointer, with the number of recursions for implementing the recursive generating of said first key and said first pointer determined by an index value, with generating said first key and generating said first pointer carried out by a processor of a portable data carrier, with the index value increased by one for data to be newly stored, and with said new index value stored on said portable data carrier, with storing said data in the first data processing system comprising the following steps; encoding or decoding said data with the recursively generated first key by means of a second data processing system, and storing or querying said encoded data in or by the memory area of the first data processing system by means of said second data processing system, said memory area identified by the recursively generated first pointer. - View Dependent Claims (31, 32)
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33. A portable data carrier, comprising:
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a processor for generating a first key to encode and/or decode data and a first pointer, a first data processing system including a memory area in which said encoded data is stored and/or is storable identified by the first pointer, means for recursively generating said first key from a second key, means for recursively generating said first pointer from a second pointer, wherein the number of recursions for implementing the recursive generating of said first key and said first pointer determined by the index value, said index value is increased by one for data to be newly stored, and said new index value is stored on the portable data carrier. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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44. A computer readable storage medium containing computer program instructions executable by means of a computer processor and causing the processor to generating a first key to encode and/or decode data and a first pointer, with said data stored in an encoded form and/or storable in an encoded form on a first data processing system in a memory area identified by said first pointer, the action of generating the first key being carried out by the following steps:
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recursive generating of said first key from a second key, recursive generating of said first pointer from a second pointer, with the number of recursions for implementing the recursive generating of said first key and said first pointer determined by an index value, with generating said first key and generating said first pointer carried out by a processor of a portable data carrier, with the index value increased by one for data to be newly stored, and with said new index value stored on said portable data carrier, with storing said data in the first data processing system comprising the following steps; encoding or decoding said data with the recursively generated first key by means of a second data processing system, and storing or querying said encoded data in or by the memory area of the first data processing system by means of said second data processing system, said memory area identified by the recursively generated first pointer. - View Dependent Claims (45, 46)
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Specification