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Cryptography

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Data Stream/substitution Enciphering



No:7421076
Advanced encryption standard (aes) engine with real time s-box generation
No:7366302
Apparatus and method for an iterative cryptographic block
No:5684876
Apparatus and method for cipher stealing when encrypting mpeg transport packets
No:5351299
Apparatus and method for data encryption with block selection keys and data encryption keys
No:6175627
Apparatus and method for embedding and extracting information in analog signals using distributed signal features
No:5233653
Apparatus and method for enciphered facsimile transmission and reception
No:7346165
Apparatus and method for generating scrambling code in mobile communication system
No:6229897
Apparatus and method of secured analog voice communication
No:7236593
Apparatus for encryption and decryption, capable of use in encryption and decryption of advanced encryption standard
No:7263187
Batch mode session-based encryption of video on demand content
No:6751319
Block cipher method
No:7386124
Block encoding method and block encoding/decoding circuit
No:6961426
Cascaded stream cipher
No:7240195
Certified shuffle-decrypting system, certified shuffle-decrypting method and certified shuffle-decryption verifying method
No:5623549
Cipher mechanisms with fencing and balanced block mixing
No:4972481
Ciphering and deciphering device
No:7424112
Ciphertext switching for syntax compliant encryption
No:6937727
Circuit and method for implementing the advanced encryption standard block cipher algorithm in a system having a plurality of channels
No:7142669
Circuit for generating hash values
No:3925611
Combined scrambler-encoder for multilevel digital data
No:4827513
Communications system
No:6075817
Compressive communication and storage system
No:5802063
Conditional access filter as for a packet video signal inverse transport system
No:7085378
Countermeasure method in an electronic component using a secret key cryptographic algorithm
No:5606616
Cryptographic apparatus with double feedforward hash function
No:6724894
Cryptographic device having reduced vulnerability to side-channel attack and method of operating same
No:6347143
Cryptographic device with encryption blocks connected parallel
No:6125182
Cryptographic engine using logic and base conversions
No:7277548
Cryptographic method and computer program product for use in wireless local area networks
No:6570989
Cryptographic processing apparatus, cryptographic processing method, and storage medium storing cryptographic processing program for realizing high-speed cryptographic processing without impairing security
No:5768390
Cryptographic system with masking
No:5159634
Cryptosystem for cellular telephony
No:5001753
Crytographic system and process and its application
No:6996234
Data decryption methodology
No:7212634
Data distribution
No:7454016
Data encryption system and method
No:6246768
Data encryption system for encrypting plaintext data
No:7023992
Data multiplexing device, program distribution system, program transmission system, pay broadcast system, program transmission method, conditional access system, and data reception device
No:5881154
Data scramble transmission system
No:4304962
Data scrambler
No:5809148
Decryption of retransmitted data in an encrypted communication system
No:5694473
Decryption of retransmitted data in an encrypted communication system
No:6278783
Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems
No:7308099
Device and method for producing an encoded audio and/or video data stream
No:6542607
Device and method for the cryptographic processing of a digital data stream presenting any number of data
No:7092524
Device for and method of cryptographically wrapping information
No:5412728
Device for security protection of digital data using elementary instructions data processing
No:5214703
Device for the conversion of a digital block and use of same
No:3988538
Digital data scrambler and descrambler
No:7106862
Digital information hiding techniques for use with data streams carried over a data communication network

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