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Cryptography > Particular Algorithmic Function Encoding > > Nbs/des Algorithm

Nbs/des Algorithm

Nbs/des Algorithm patent applications listed are from June 2005 to current and include Date, Patent Application Number, Patent Title, Patent Abstract summary and are linked to the corresponding patent application page.

11/15/07 - 20070263859 - Protection of the execution of a des algorithm
A method for protecting an execution, by an integrated circuit, of a ciphering and/or deciphering algorithm taking into account data and at least one valid key and performing several iterations of the same calculation, including at least one execution of an iteration with the valid key between several executions of ...

11/08/07 - 20070258582 - Hardware key encryption for data scrambling
Apparatus and method to scramble data prior to placing it on a bus or in memory uses embedded hardware keys for encryption/decryption. The hardware keys may be used in addition to software encryption. Different hardware keys may be used to process most significant bits and least significant bits of a ...

04/05/07 - 20070076864 - Cryptographic system and method for encrypting input data
A cryptographic system for encrypting input data in accordance with an encryption algorithm having a repeated-round structure may include an encryption unit updating and storing encrypted data in accordance with the encryption algorithm in each given round, and outputting the encrypted data after executing the encryption for a given number ...

03/29/07 - 20070071236 - High speed configurable cryptographic architecture
Method and system to encrypt and decrypt data is provided. The method comprising, providing input data to be encrypted, said input data made up of a plurality of sub-data, each said sub-data comprising sequence of bits of data; dynamically selecting a plurality of invertible encryption parameters; and performing one or ...

08/10/06 - 20060177052 - S-box encryption in block cipher implementations
A method of performing encryption or decryption in a cryptographic engine that implements a cryptographic algorithm reduces the risk of differential power analysis revealing key information from inputs and output from S-boxes. The data and address locations used to access the data in S-boxes are encrypted. Retrieval of data from ...

07/20/06 - 20060159258 - Processor for encrypting and/or decrypting data and method of encrypting and/or decrypting data using such a processor
In order to provide a processor for encrypting and/or decrypting data and a method of encrypting and/or decrypting data using such a processor, which are characterized by a lower storage requirement and greater safety against attacks on the rounding key generation than previously known and which are preferably embodied as, ...

07/13/06 - 20060153363 - Plasma display apparatus
This document relates to a plasma display apparatus, and more particularly, to a plasma display apparatus that drives electrodes. A plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel comprising a scan electrode and a sustain electrode, a driver for driving the scan ...

07/06/06 - 20060147041 - Des algorithm-based encryption method
Applicable in communications systems in the sending of data among user equipment of nodes connected to a network. It is characterised in that it comprises generating random keys (6) that are different for each packet, which are used for enciphering each packet by means of the DES enciphering algorithm, and ...

05/04/06 - 20060093136 - Implementation of a switch-box using a subfield method
Methods and systems for implementing a switch box (S-box) in a cryptographic application are described. An input to the S-box is converted from a Galois field representation GF(N2) to a Galois subfield representation GF(N)2. The input is converted using a generating polynomial of the form x2+Ax+B, where A and B ...

02/23/06 - 20060039554 - High security media encryption
A method for encrypting a block-based removable media includes identifying a file system for the media, and receiving a selection of data to be written to the media. The identified file system designates specific logical block addresses for file system structures and files which enable the media to mount and ...

01/12/06 - 20060008084 - Ciphering by blocks of the content of a memory external to a processor
A method and an element for ciphering with an integrated processor data to be stored in a memory, including applying to each data block to be ciphered a ciphering algorithm which is a function of at least one key specific to the integrated circuit, and before applying the ciphering algorithm ...

12/08/05 - 20050271202 - Cryptographic architecture with random instruction masking to thwart differential power analysis
An apparatus and method for preventing information leakage attacks that utilize timeline alignment. The apparatus and method inserts a random number of instructions into an encryption algorithm such that the leaked information can not be aligned in time to allow an attacker to break the encryption. ...

09/22/05 - 20050207572 - Method and device for automatic validation of computer program using cryptography functions
A method for automatic validation of a computer program can access a secure memory and a non-secure memory, the program using at least one coding function and at least one de-coding function. The method includes a verification step (E340) during which verification occurs to ensure that each function which is ...

09/08/05 - 20050195974 - Method and apparatus for data encryption
A block cipher device for a cryptographically secured digital communication system includes a pair of first stages connected in parallel for receiving an input data block and a control data block. Each first stage defines a respective first data path and includes a sum modulo-two unit for receiving the control ...

08/11/05 - 20050175175 - Parallelizable integrity-aware encryption technique
The present invention provides a parallelizable integrity-aware encryption technique. In at least one embodiment of the invention, a parallelizable integrity-aware encryption method comprises whitening at least one message block with a first mask value, encrypting the whitened at least one message block using a block cipher and a first key, ...

07/07/05 - 20050147244 - Method for cryptographic transformation of binary data blocks
A method for cryptographic transformation of a binary data block comprising the steps splitting said data block into N≧2 sub-blocks, alternately converting said sub-blocks by the operations implemented with a controlled substitution-permutation network (CSPN), and performing a controlled CSPN-based involution on at least the i-th sub-block, where i=1, 2, . ...



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