СПИСОК патентов США - подгруппа МПК16 H04L9/18
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| № п/п | Номер патента | Название патента | |||
2017 | |||||
| 1 | 9594920 | Managing keys used for encrypting data | |||
| 2 | 9584313 | Streaming one time pad cipher using rotating ports for data encryption | |||
| 3 | 9577822 | Secure bitstream authentication | |||
2016 | |||||
| 4 | 9509414 | Encryption and decryption method and device | |||
| 5 | 9490972 | Method and apparatus for providing conditional access based on channel characteristics | |||
| 6 | 9467285 | Security of a multimedia stream | |||
| 7 | 9350533 | Method and apparatus for delivering encrypted content to web browsers based on entropy of the content | |||
| 8 | 9344278 | Secure data transfer using random ordering and random block sizing | |||
| 9 | 9313023 | Format-preserving cipher | |||
| 10 | 9294277 | Audio encryption systems and methods | |||
| 11 | 9281943 | Defending against factoring by collision | |||
| 12 | 9270461 | System and method for efficient support for short cryptoperiods in template mode | |||
2015 | |||||
| 13 | 9172528 | Method and apparatus for allowing software access to navigational data in a decrypted media stream while protecting stream payloads | |||
| 14 | 9154295 | Method of generating a correspondence table for a cryptographic white box | |||
| 15 | 9094733 | Methods and systems for cryptographic access control of video | |||
| 16 | 9094191 | Master key encryption functions for transmitter-receiver pairing as a countermeasure to thwart key recovery attacks | |||
| 17 | 9083531 | Performing client authentication using certificate store on mobile device | |||
| 18 | 9047482 | Token-based security for links to media streams | |||
| 19 | 9043881 | Entitled data cache management | |||
2014 | |||||
| 20 | 8913745 | Security within integrated circuits | |||
| 21 | 8856551 | BIOS lock encode/decode driver | |||
| 22 | 8767959 | Block encryption | |||
| 23 | 8739307 | Method and apparatus for allowing software access to navigational data in a decrypted media stream while protecting stream payloads | |||
| 24 | 8718278 | Method and system for encryption of a datastream | |||
| 25 | 8631234 | Apparatus and method for establishing encryption information common to a plurality of communication paths coupling two apparatuses | |||
2013 | |||||
| 26 | 8589695 | Methods and systems for entropy collection for server-side key generation | |||
| 27 | 8577038 | Method and device for generating pseudorandom number, and method and device for encryption using pseudorandom number | |||
| 28 | 8532297 | Techniques for transmitting control channel information | |||
| 29 | 8510810 | Secure credential store | |||
2012 | |||||
| 30 | 8321925 | Distributed encryption key management | |||
| 31 | 8300824 | System and method for encrypting data using a cipher text in a communications environment | |||
| 32 | 8265269 | Receiving apparatus and method for controlling the same | |||
2011 | |||||
| 33 | 8055902 | Method, system, and computer program product for data upload in a computing system | |||
| 34 | 8041031 | Cryptographic primitives, error coding, and pseudo-random number improvement methods using quasigroups | |||
| 35 | 7979713 | Methods and arrangments for realising betting with off-line terminals | |||
| 36 | 7970137 | Content reproduction apparatus, content recording apparatus, network system, and content recording/reproduction method | |||
| 37 | 7912218 | Method of broadcasting multimedia content via distribution network | |||
| 38 | 7894599 | Enhanced data security with redundant inclusive data encryption segments | |||
| 39 | 7864950 | Block encryption device using auxiliary conversion | |||
2010 | |||||
| 40 | 7822196 | Block cipher apparatus using auxiliary transformation | |||
| 41 | 7769171 | Method for transmitting digital data in a local network | |||
| 42 | 7764789 | Key bit stream generation | |||
| 43 | 7764788 | Methods and apparatus for performing authentication and decryption | |||
| 44 | 7760876 | Content security layer providing long-term renewable security | |||
| 45 | 7760871 | Block cipher using auxiliary transformation | |||
| 46 | 7760870 | Block cipher apparatus using auxiliary transformation | |||
| 47 | 7751559 | Secure transmission of cryptographic key | |||
| 48 | 7734044 | Method and apparatus for synchronous stream cipher encryption with reserved codes | |||
| 49 | 7707427 | Multi-level file digests | |||
| 50 | 7689822 | Communication device for providing security in a group communication network | |||
| 51 | 7676040 | Changing encryption key of encrypted data | |||
| 52 | 7673140 | Dedicated encrypted virtual channel in a multi-channel serial communications interface | |||
| 53 | 7646870 | Triple churning | |||
| 54 | 7644445 | Secure key management for scalable codestreams | |||
2009 | |||||
| 55 | 7640595 | Computing system with decryption functions and secure data product | |||
| 56 | 7606364 | Disk drive with flexible data stream encryption | |||
| 57 | 7602908 | System and method for using a streaming protocol | |||
| 58 | 7591012 | Dynamic negotiation of encryption protocols | |||
| 59 | 7590882 | System, method and storage medium for bus calibration in a memory subsystem | |||
| 60 | 7584502 | Policy engine and methods and systems for protecting data | |||
| 61 | 7584150 | Recording method, recording medium, and recording system | |||
| 62 | 7558970 | Privacy-enhanced searches using encryption | |||
| 63 | 7558967 | Encryption for a stream file in an FPGA integrated circuit | |||
| 64 | 7526087 | Random number generator | |||
| 65 | 7522725 | Method and apparatus for composable block re-encryption of publicly distributed content | |||
| 66 | 7502472 | Encryption system and method for encrypting/decrypting sensitive data | |||
| 67 | 7502463 | Methods and apparatus for implementing a cryptography engine | |||
2008 | |||||
| 68 | 7389420 | Content authentication and recovery using digital watermarks | |||
| 69 | 7333613 | Cyphering of the content of a memory external to a processor | |||
2007 | |||||
| 70 | 7304757 | System and method for secure printing | |||
| 71 | 7302709 | Key-based secure storage | |||
| 72 | 7299357 | Opaque message archives | |||
| 73 | 7298849 | Method and apparatus for simultaneous encryption and decryption of publicly distributed media | |||
| 74 | 7283628 | Programmable data encryption engine | |||
| 75 | 7277542 | Stream cipher encryption application accelerator and methods thereof | |||
| 76 | 7266683 | Selective encryption of application session packets | |||
| 77 | 7242770 | Secure encryption/decryption for elevators | |||
| 78 | 7236593 | Apparatus for encryption and decryption, capable of use in encryption and decryption of advanced encryption standard | |||
| 79 | 7197142 | System and methods for a vernam stream cipher | |||
| 80 | 7184550 | Method and apparatus for simultaneous decryption and re-encryption of publicly distributed content via stream ciphers | |||
| 81 | 7178033 | Method and apparatus for securing digital assets | |||
| 82 | 7174015 | Methods and apparatus for variable radix scalable modular multiplication | |||
| 83 | 7158637 | Security communication packet processing apparatus and the method thereof | |||
2006 | |||||
| 84 | 7142673 | Method for the cryptographic conversion of L-bit input blocks of digital data into L-bit output blocks | |||
| 85 | 7117357 | Method, system, and product for pre-encrypting static information transmitted by secure web sites | |||
| 86 | 7106862 | Digital information hiding techniques for use with data streams carried over a data communication network | |||
| 87 | 6996712 | Data authentication system employing encrypted integrity blocks | |||
2005 | |||||
| 88 | 6965995 | Signal processing circuit | |||
| 89 | 6963860 | Information recording and reproducing system and method and distribution medium | |||
| 90 | 6961426 | Cascaded stream cipher | |||
| 91 | 6952477 | Fault intolerant cipher chaining | |||
| 92 | 6944295 | Data-processing device and method of operating said device | |||
| 93 | 6944253 | Circuit and software for generating a stream cipher | |||
| 94 | 6912284 | Self-Authenticating cryptographic apparatus | |||
| 95 | 6895090 | Pseudo-noise sequence with insertion having variant length and position | |||
| 96 | 6891952 | Dynamic key generation and confidential synchronization of encryption components | |||
| 97 | 6888941 | Method and apparatus for generating encryption stream ciphers | |||
| 98 | 6882727 | Method of ciphering data transmission in a radio system | |||
| 99 | 6879689 | Stream-cipher method and apparatus | |||
| 100 | 6870930 | Methods and systems for TMDS encryption | |||
| 101 | 6862354 | Stream cipher encryption method and apparatus that can efficiently seek to arbitrary locations in a key stream | |||
2004 | |||||
| 102 | 6813710 | Invisible electronic signature | |||
| 103 | 6813625 | Method and device for self-clock controlled pseudo random noise (PN) sequence generation | |||
| 104 | 6810407 | Optical boolean logic devices for data encryption | |||
| 105 | 6804354 | Cryptographic isolator using multiplication | |||
| 106 | 6802003 | Method and apparatus for authenticating content | |||
| 107 | 6801999 | Passive and active software objects containing bore resistant watermarking | |||
| 108 | 6792109 | Bit generator for determining a secret encryption key and corresponding process | |||
| 109 | 6792108 | Aperiodic encryption for digital data | |||
| 110 | 6788787 | Pseudorandom number generator, stream encryption method, and stream encrypting communication method | |||
| 111 | 6778670 | Method and apparatus for encryption and decryption | |||
| 112 | 6763363 | Computer efficient linear feedback shift register | |||
| 113 | 6760440 | One's complement cryptographic combiner | |||
| 114 | 6760438 | System and method for Viterbi decoding on encrypted data | |||
| 115 | 6738413 | Code generator, communication unit using the code generator, communication system, and code generation method | |||
| 116 | 6735264 | Compensation for non-linear distortion in a modem receiver | |||
| 117 | 6714614 | Subscriber unit for generating a stream cipher | |||
2003 | |||||
| 118 | 6667665 | Random number generator | |||
| 119 | 6643374 | Duty cycle corrector for a random number generator | |||
| 120 | 6636549 | Method for calculating phase shift coefficients of an M sequence | |||
| 121 | 6628786 | Distributed state random number generator and method for utilizing same | |||
| 122 | 6587562 | Synchronous stream cipher | |||
| 123 | 6560338 | Limiting delays associated with the generation of encryption stream ciphers | |||
| 124 | 6549622 | System and method for a fast hardware implementation of RC4 | |||
| 125 | 6526145 | Data encryptor/decryptor using variable in-place I/O | |||
| 126 | 6519702 | Method and apparatus for limiting security attacks via data copied into computer memory | |||
| 127 | 6516065 | Method for implementing ciphered communication for single-hop terminal-to-terminal calls in a mobile satellite system | |||
| 128 | 6510228 | Method and apparatus for generating encryption stream ciphers | |||
2002 | |||||
| 129 | 6490357 | Method and apparatus for generating encryption stream ciphers | |||
| 130 | 6490354 | Lightweight word-oriented technique for generating a pseudo-random sequence for use in a keystream of a stream cipher | |||
| 131 | 6430246 | Method and apparatus for generating a stream cipher | |||
| 132 | 6421780 | System for creating high and low speed non-algorithmic random numbers for encryption/decryption | |||
| 133 | 6415032 | Encryption technique using stream cipher and block cipher | |||
| 134 | 6408077 | Descrambling device of a security element and security element comprising such a device | |||
| 135 | 6404888 | Confusion data generator | |||
| 136 | 6393125 | Initializer for a confusion data generator | |||
| 137 | 6339645 | Pseudo-random sequence generator and associated method | |||
2001 | |||||
| 138 | 6330333 | Cryptographic system for wireless communications | |||
| 139 | 6324287 | Pad encryption method and software | |||
| 140 | 6317499 | Storage device random bit generator | |||
| 141 | 6314187 | Method for encryption or decryption using finite group operations | |||
| 142 | 6307940 | Communication network for encrypting/deciphering communication text while updating encryption key, a communication terminal thereof, and a communication method thereof | |||
| 143 | 6278780 | Method of and an apparatus for generating internal crypto-keys | |||
| 144 | 6252961 | Method and apparatus for performing data encryption and error code correction | |||
| 145 | 6252958 | Method and apparatus for generating encryption stream ciphers | |||
| 146 | 6201870 | Pseudorandom noise sequence generator | |||
2000 | |||||
| 147 | 6167553 | Spiral scrambling | |||
| 148 | 6148053 | Method and apparatus for generating a stream cipher | |||
| 149 | 6141668 | Pseudo-random number generating method and apparatus therefor | |||
| 150 | 6128387 | Method and system for using a non-inversible transform and dynamic keys to protect firmware | |||
| 151 | 6128386 | Multiple number base encoder/decoder using a corresponding exclusive or function | |||
| 152 | 6122379 | Method and apparatus for performing simultaneous data compression and encryption | |||
| 153 | 6122376 | State synchronized cipher text scrambler | |||
| 154 | 6118869 | System and method for PLD bitstream encryption | |||
| 155 | 6112187 | Encryption communication system for generating passwords on the basis of start information on both parties of communication | |||
| 156 | 6104811 | Cryptographically secure pseudo-random bit generator for fast and secure encryption | |||
| 157 | 6104810 | Pseudorandom number generator with backup and restoration capability | |||
| 158 | 6097815 | Method of and an apparatus for generating pseudo-random numbers | |||
| 159 | 6088456 | Data encryption technique | |||
| 160 | 6084966 | Communicating encrypted signals in which random bits and random bit position data are inserted | |||
| 161 | 6070178 | Generating random numbers from random signals without being affected by any interfering signals | |||
| 162 | 6061703 | Pseudorandom number generator with normal and test modes of operation | |||
| 163 | 6058479 | Redundant path data switch and media translator | |||
| 164 | 6052786 | Secrecy communication system | |||
| 165 | 6052466 | Encryption of data packets using a sequence of private keys generated from a public key exchange | |||
| 166 | 6049608 | Variable length nonlinear feedback shift registers with dynamically allocated taps | |||
| 167 | 6047069 | Method and apparatus for preserving error correction capabilities during data encryption/decryption | |||
| 168 | 6047068 | Method for determining an encryption key associated with an integrated circuit | |||
| 169 | 6044388 | Pseudorandom number generator | |||
| 170 | 6014446 | Apparatus for providing improved encryption protection in a communication system | |||
| 171 | 6014445 | Enciphering/deciphering apparatus and method incorporating random variable and keystream generation | |||
| 172 | 6011849 | Encryption-based selection system for steganography | |||
1999 | |||||
| 173 | 6009135 | Method and apparatus for generating a stream cipher | |||
| 174 | 5995629 | Encoding device | |||
| 175 | 5987139 | Method for encryption of information | |||
| 176 | 5987137 | Method for the encryption of data transfer | |||
| 177 | 5983252 | Pseudo-random number generator capable of efficiently exploiting processors having instruction-level parallelism and the use thereof for encryption | |||
| 178 | 5978483 | Securely encrypted remote keyless entry system | |||
| 179 | 5966450 | Variable mask for encryption generated independently at communications stations | |||
| 180 | 5946398 | State synchronized cipher text scrambler | |||
| 181 | 5943248 | w-bit non-linear combiner for pseudo-random number generation | |||
| 182 | 5912973 | Method for scrambling and/or descrambling FM subcarrier data | |||
| 183 | 5910907 | Shift register based pseudorandom number generator | |||
| 184 | 5881153 | Remote keyless entry encryption algorithm | |||
| 185 | 5878075 | Method of and apparatus for generating a pseudorandom noise sequence | |||
| 186 | 5864491 | Apparatus and associated method for generating a pseudo random number | |||
| 187 | 5862217 | Method and apparatus for in-camera encryption | |||
| 188 | 5859912 | Digital information privacy system | |||
1998 | |||||
| 189 | 5844925 | Spiral scrambling | |||
| 190 | 5841872 | Encryption enhancement system | |||
| 191 | 5835597 | Software-efficient pseudorandom function and the use thereof for decryption | |||
| 192 | 5828752 | Pseudo-random number generator and communication system employing the same | |||
| 193 | 5825889 | Use of duplex cipher algorithms for satellite channels with delay | |||
| 194 | 5825888 | Descrambling device | |||
| 195 | 5809148 | Decryption of retransmitted data in an encrypted communication system | |||
| 196 | 5809147 | Device for cryptographically processing data packets and method of generating cryptographic processing data | |||
| 197 | 5799090 | pad encryption method and software | |||
| 198 | 5799088 | Non-deterministic public key encrypton system | |||
| 199 | 5784427 | Feedback and shift unit | |||
| 200 | 5781458 | Method and apparatus for generating truly random numbers | |||
| 201 | 5778069 | Non-biased pseudo random number generator | |||
| 202 | 5751808 | Multi-purpose high speed cryptographically secure sequence generator based on zeta-one-way functions | |||
| 203 | 5737422 | Distributed data processing network | |||
| 204 | 5732138 | Method for seeding a pseudo-random number generator with a cryptographic hash of a digitization of a chaotic system | |||
| 205 | 5727064 | Cryptographic system for wireless communications | |||
| 206 | 5727063 | Pseudo-random generator | |||
| 207 | 5719913 | Pseudo-random number generating circuit and bidirectional shift register | |||
| 208 | 5717760 | Message protection system and method | |||
1997 | |||||
| 209 | 5703952 | Method and apparatus for generating a cipher stream | |||
| 210 | 5696826 | Method and apparatus for encrypting and decrypting information using a digital chaos signal | |||
| 211 | 5694473 | Decryption of retransmitted data in an encrypted communication system | |||
| 212 | 5677952 | Method to protect information on a computer storage device | |||
| 213 | 5675652 | Computer readable device implementing a software-efficient pseudorandom function encryption | |||
| 214 | 5649014 | Pseudorandom composition-based cryptographic authentication process | |||
| 215 | 5638512 | Ring network security system with encoding of data entering a subnetwork and decoding of data leaving the subnet work | |||
| 216 | 5627894 | Random number generator | |||
| 217 | 5621799 | Scrambled transmission system | |||
| 218 | 5619576 | Variable-key cryptography system | |||
| 219 | 5619575 | Pseudorandom composition-based cryptographic authentication process | |||
| 220 | 5613005 | Cipher communication method and device | |||
| 221 | 5608802 | Data ciphering device | |||
| 222 | 5600720 | Encryption apparatus, communication system using the same and method therefor | |||
| 223 | 5596516 | Code sequence generator | |||
| 224 | 5594795 | Method and apparatus for key transforms to discriminate between different networks | |||
1996 | |||||
| 225 | 5577124 | Multi-purpose high speed cryptographically secure sequence generator based on zeta-one-way functions | |||
| 226 | 5566099 | Pseudorandom number generator | |||
| 227 | 5541996 | Apparatus and method for a pseudo-random number generator for high precision numbers | |||
| 228 | 5515307 | Pseudo-random generator | |||
| 229 | 5500899 | Secure voice conferencing apparatus | |||
| 230 | 5495580 | Ring network security system with encoding of data entering a subnetwork and decoding of data leaving a subnetwork | |||
| 231 | 5488663 | Encoding methods for generating a digital signal containing modulated bit allocation information, and record carriers containing that signal | |||
| 232 | 5483598 | Message encryption using a hash function | |||
1995 | |||||
| 233 | 5473696 | Method and apparatus for combined encryption and scrambling of information on a shared medium network | |||
| 234 | 5454039 | Software-efficient pseudorandom function and the use thereof for encryption | |||
| 235 | 5444781 | Method and apparatus for decryption using cache storage | |||
| 236 | 5440640 | Multistream encryption system for secure communication | |||
| 237 | 5438622 | Method and apparatus for improving the security of an electronic codebook encryption scheme utilizing an offset in the pseudorandom sequence | |||
| 238 | 5432853 | Digital signal processing system | |||
| 239 | 5425103 | Variable-key cryptography system | |||
| 240 | 5420928 | Pseudo-random generator | |||
| 241 | 5414771 | System and method for the creation of random sequences and for the cryptographic protection of communications | |||
| 242 | 5398284 | Cryptographic encoding process | |||
1994 | |||||
| 243 | 5375171 | Transmission system, and transmitter and receiver used in the transmission system for transmitting and receiving digital signals containing modulated bit allocation information | |||
| 244 | 5365588 | High speed encryption system and method | |||
| 245 | 5365585 | Method and apparatus for encryption having a feedback register with selectable taps | |||
| 246 | 5355415 | Parallel distributed sample scrambling system | |||
| 247 | 5351301 | Authenticator circuit | |||
| 248 | 5345508 | Method and apparatus for variable-overhead cached encryption | |||
| 249 | 5345507 | Secure message authentication for binary additive stream cipher systems | |||
| 250 | 5319712 | Method and apparatus for providing cryptographic protection of a data stream in a communication system | |||
| 251 | 5307412 | Random coding cipher system and method | |||
| 252 | 5297207 | Machine generation of cryptographic keys by non-linear processes similar to processes normally associated with encryption of data | |||
1993 | |||||
| 253 | 5272754 | Secure computer interface | |||
| 254 | 5257282 | High speed code sequence generator | |||
| 255 | 5245661 | Distributed sample scrambling system | |||
| 256 | 5245659 | Constant ratio coding for multipath rejection and ECCM enhancement | |||
| 257 | 5241597 | Method for recovering from encryption key variable loss | |||
| 258 | 5241595 | Communication control section for facsimile equipment having a secure communication function | |||
| 259 | 5239581 | Secret communication apparatus | |||
| 260 | 5239494 | Random bit stream generator and method | |||
| 261 | 5237615 | Multiple independent binary bit stream generator | |||
| 262 | 5228054 | Power-of-two length pseudo-noise sequence generator with fast offset adjustment | |||
| 263 | 5226082 | Variable length decoder | |||
| 264 | 5222142 | Sequence generator | |||
| 265 | 5222141 | Apparatus and method for encoding data | |||
| 266 | 5218559 | Pseudo-random generator | |||
| 267 | 5204903 | Secure communication equipment and secure transmission system | |||
| 268 | 5195136 | Method and apparatus for data encryption or decryption | |||
| 269 | 5191614 | Secure communication system | |||
1992 | |||||
| 270 | 5148485 | Encrypton system for digital cellular communications | |||
| 271 | 5091941 | Secure voice data transmission system | |||
| 272 | 5086468 | Text modifier | |||
| 273 | 5079733 | Pseudo-random sequence generator arrangement | |||
1991 | |||||
| 274 | 5077793 | Residue number encryption and decryption system | |||
| 275 | 5067156 | Method for generating a random number for the encoded transmission of data upon employment of a variable starting value | |||
| 276 | 5060265 | Method of protecting a linear feedback shift register (LFSR) output signal | |||
| 277 | 5029210 | Cooperative communication system | |||
| 278 | 5016275 | Buffered encryption/decryption | |||
| 279 | 5014313 | Text modifier | |||
| 280 | 5008938 | Encryption apparatus | |||
| 281 | 5007087 | Method and apparatus for generating secure random numbers using chaos | |||
| 282 | 5003598 | Secure communication system | |||
| 283 | 5001754 | Encryption system and method | |||
| 284 | 4993070 | Ciphertext to plaintext communications system and method | |||
| 285 | 4989244 | Data encripting transfer | |||
1990 | |||||
| 286 | 4972481 | Ciphering and deciphering device | |||
| 287 | 4972474 | Integer encryptor | |||
| 288 | 4961221 | Communication method and system with encryption of information | |||
| 289 | 4951247 | Data exchange system comprising a plurality of user terminals each containing a chip card reading device | |||
| 290 | 4944009 | Pseudo-random sequence generator | |||
| 291 | 4928310 | Pseudorandom pulse code generators using electro-optical XOR gates | |||
| 292 | 4926478 | Method and apparatus for continuously acknowledged link encrypting | |||
| 293 | 4901264 | Pseudo random pattern generating device | |||
| 294 | 4897876 | Method of and an arrangement for digital signal encryption | |||
1989 | |||||
| 295 | 4890252 | Long period pseudo random number sequence generator | |||
| 296 | 4878246 | Method and apparatus for generating encryption/decryption key | |||
| 297 | 4870682 | Television scrambling system | |||
| 298 | 4864525 | Maximum length shift register sequence generator | |||
| 299 | 4860353 | Dynamic feedback arrangement scrambling technique keystream generator | |||
| 300 | 4845726 | Maximum length linearly recurring sequence generator control device | |||
| 301 | 4845654 | Pseudo random noise code generator | |||
| 302 | 4817145 | Generator for generating binary ciphering sequences | |||
| 303 | 4815130 | Stream cipher system with feedback | |||
| 304 | 4811394 | Variable starting state scrambling circuit | |||
| 305 | 4809295 | Code lengthening system | |||
| 306 | 4805216 | Method and apparatus for continuously acknowledged link encrypting | |||
| 307 | 4799259 | Monolithic random digital noise generator | |||
| 308 | 4797922 | Method of, and apparatus for, transforming a digital data sequence into an encoded form | |||
1988 | |||||
| 309 | 4791669 | Encryption/decryption system | |||
| 310 | 4785410 | Maximum length shift register sequences generator | |||
| 311 | 4780840 | Method of generating a pseudo-random sequence of signs of a large sequence length | |||
| 312 | 4771462 | Communication port encryption/decryption method and apparatus | |||
| 313 | 4724541 | Data-dependent binary encoder/decoder | |||
1987 | |||||
| 314 | 4710921 | Digital signal transmitting system | |||
| 315 | 4689606 | Data encoding/decoding circuit | |||
| 316 | 4685132 | Bent sequence code generator | |||
| 317 | 4663500 | Cryptographic system | |||
| 318 | 4661980 | Intercept resistant data transmission system | |||
| 319 | 4638120 | Method and system for transmission of confidential data | |||
1986 | |||||
| 320 | 4633037 | Generation of identification keys | |||
| 321 | 4596898 | Method and apparatus for protecting stored and transmitted data from compromise or interception | |||
| 322 | 4577059 | Decoding process and apparatus | |||
1985 | |||||
| 323 | 4549308 | Secure mobile radio telephony | |||
| 324 | 4543559 | Generator of encoding or decoding 8-bit bytes which can be used in a video system | |||
| 325 | 4503287 | Two-tiered communication security employing asymmetric session keys | |||
| 326 | 4498000 | Security method and device for communicating confidential data via an intermediate stage | |||
1984 | |||||
| 327 | 4488001 | Intellectual properties protection device | |||
| 328 | 4484025 | System for enciphering and deciphering data | |||
| 329 | 4465153 | Method of coding and decoding messages | |||
| 330 | 4447672 | Device for encrypting each input data bit by at least one keying bit decided by a code pattern and a bit pattern of a predetermined number of preceding encrypted bits | |||
| 331 | 4431865 | Digital signal enciphering and deciphering apparatus and system | |||
| 332 | 4429180 | Apparatus for simultaneous generation of key at two locations | |||
1983 | |||||
| 333 | 4417338 | Cryptographic key sharing circuit and method using code correction | |||
| 334 | 4386234 | Cryptographic communication and file security using terminals | |||
| 335 | 4370519 | Autokey generator for secret communication system | |||
| 336 | 4369333 | Method and apparatus for enciphering and deciphering of information | |||
| 337 | 4369332 | Key variable generator for an encryption/decryption device | |||
1982 | |||||
| 338 | 4350844 | Encipering- and deciphering apparatus in the form of a typewriter | |||
| 339 | 4343967 | Autokey code generator | |||
| 340 | 4341925 | Random digital encryption secure communication system | |||
| 341 | 4332977 | Teletypewriter privacy system | |||
| 342 | 4316055 | Stream/block cipher crytographic system | |||
| 343 | 4313031 | Encipher-decipher device having semi-automatic generation of the code key during data entry | |||
1981 | |||||
| 344 | 4302810 | Method and apparatus for secure message transmission for use in electronic funds transfer systems | |||
| 345 | 4283599 | Method and apparatus for securing data transmissions | |||
| 346 | 4281216 | Key management for encryption/decryption systems | |||
| 347 | 4281215 | Method and apparatus for securing data transmissions | |||
| 348 | 4268715 | Method and apparatus for securing data transmissions | |||
| 349 | 4264781 | Apparatus for encoding and decoding data signals | |||
1980 | |||||
| 350 | 4238854 | Cryptographic file security for single domain networks | |||
| 351 | 4238853 | Cryptographic communication security for single domain networks | |||
| 352 | 4232186 | Method of and means for generating complex electrical coding waves for secret communications | |||
| 353 | 4227253 | Cryptographic communication security for multiple domain networks | |||
| 354 | 4225962 | Mosaic printer | |||
| 355 | 4225935 | Coding method and system with enhanced security | |||
| 356 | 4215421 | Data-processing system which protects the secrecy of confidential data | |||
| 357 | 4203166 | Cryptographic file security for multiple domain networks | |||
| 358 | 4202051 | Digital data enciphering and deciphering circuit and method | |||
| 359 | 4195196 | Variant key matrix cipher system | |||
| 360 | 4193131 | Cryptographic verification of operational keys used in communication networks | |||
| 361 | 4192967 | Teletype mixer apparatus for coding and decoding | |||
| 362 | 4187392 | Synchronous universal binary scrambler | |||
| 363 | 4185166 | Multi-mode digital enciphering system | |||
| 364 | 4181816 | Devices for combining random sequences, using one or more switching operations | |||
1979 | |||||
| 365 | 4179663 | Devices for generating pseudo-random sequences | |||
| 366 | 4178474 | Signaling system | |||
| 367 | 4176399 | Analog noise generator | |||
| 368 | 4176246 | Apparatus for the transmission end-enciphering and reception end-deciphering of information | |||
| 369 | 4172213 | Byte stream selective encryption/decryption device | |||
| 370 | 4170714 | Digital cryptographic system and testing thereof | |||
| 371 | 4169212 | Multi-mode digital enciphering system | |||
| 372 | 4168395 | Start/stop teleprinter scrambler | |||
| 373 | 4166922 | Multi-mode digital enciphering system with repeated priming sequences | |||
| 374 | 4165444 | Apparatus for electronic encypherment of digital data | |||
| 375 | 4163870 | Circuit for producing a pulse succession | |||
| 376 | 4162762 | Data processing machine, especially ciphering equipment | |||
| 377 | 4160120 | Link encryption device | |||
| 378 | 4156108 | Pulse producing system for secrecy transmissions | |||
| 379 | 4145569 | Method and apparatus for synchronizing the ciphering and deciphering of binary-coded messages | |||
| 380 | 4145568 | Method and apparatus for ciphering and deciphering messages | |||
| 381 | 4140873 | Multi-mode digital enciphering system | |||
| 382 | 4133974 | System for locally enciphering prime data | |||
| 383 | 4133973 | Digital cryptographic system having synchronous and asynchronous capabilities | |||
1978 | |||||
| 384 | 4115657 | Random digital code generator | |||
| 385 | 4107458 | Cipher computer and cryptographic system | |||
| 386 | 4079188 | Multi-mode digital enciphering system | |||
| 387 | 4068089 | Data indicator unit | |||
1977 | |||||
| 388 | 4058673 | Arrangement for ciphering and deciphering of information | |||
| 389 | 4047008 | Pseudo-random number sequence generator | |||
| 390 | 4032763 | Production of pseudo-random binary signal sequences | |||
| 391 | 4004089 | Programmable cryptic device for enciphering and deciphering data | |||
1976 | |||||
| 392 | 3984668 | Method for generating pseudo-random bit sequence words and a device for carrying out the method | |||
| 393 | 3983326 | Key pulse generator for secrecy signalling circuit | |||
| 394 | 3968454 | Signaling circuit | |||
| 395 | 3965297 | Secret communication signal generating system | |||
| 396 | 3949296 | Code and generating means for avionics communciations synthesizer | |||
| 397 | 3934078 | Key generating system | |||
| © 2017, ПАТ-Инфо, В.И. Карнышев
Дата формирования списка: 03.04.2017 | |||||