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| 1 |
6,088,452 |
Encoding technique for software and hardware
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| 2 |
5,923,759 |
System for securely exchanging data with smart cards
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| 3 |
5,917,910 |
Encrypting method and apparatus, recording method, decrypting method and
apparatus, and recording medium
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| 4 |
5,915,017 |
Method and apparatus for securing programming data of programmable logic
device
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| 5 |
5,912,969 |
Information receiving and recording/reproducing apparatus/method having
function for limiting/delimiting for protecting copyright of recording
information
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| 6 |
5,907,621 |
System and method for session management
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| 7 |
5,907,617 |
Try before you buy software distribution and marketing system
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| 8 |
5,903,652 |
System and apparatus for monitoring secure information in a computer
network
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| 9 |
5,903,647 |
Self-launching encrypted digital information distribution system
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| 10 |
5,901,224 |
Quasi-reprographics with variable embedded data with applications to
copyright management, and distribution control
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| 11 |
5,900,927 |
Variable target autofocusing and range finder for measuring distance to
a subject
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| 12 |
5,892,827 |
Method and apparatus for generating personal identification numbers for
use in consumer transactions
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| 13 |
5,892,826 |
Data processor with flexible data encryption
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| 14 |
5,889,860 |
Encryption system with transaction coded decryption key
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| 15 |
5,887,060 |
Central database system for automatic software program sales
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| 16 |
5,884,026 |
Personal computer having a security function, a method of implementing
the security function, and methods of installing and detaching a
security device to/from a computer
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| 17 |
5,883,955 |
On-line try before you buy software distribution system
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| 18 |
5,883,954 |
Self-launching encrypted try before you buy software distribution system
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| 19 |
5,881,154 |
Data scramble transmission system
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| 20 |
5,878,137 |
Method for obtaining authenticity identification devices for using
services in general, and device obtained thereby
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| 21 |
5,878,134 |
Secure access systems utilizing more than one IC card
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| 22 |
5,872,848 |
Method and apparatus for witnessed authentication of electronic documents
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| 23 |
5,857,025 |
Electronic encryption device and method
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| 24 |
5,857,023 |
Space efficient method of redeeming electronic payments
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| 25 |
5,841,873 |
Methods of detecting decryption errors
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| 26 |
5,841,871 |
Method for authenticating a user working in a distributed environment in
the client/server mode
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| 27 |
5,838,796 |
Statistically optimized bit permutations in interated block substitution
systems
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| 28 |
5,838,795 |
Method and apparatus for statistical diffusion in iterated block
substitution
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| 29 |
5,838,794 |
Method and apparatus for inter-round mixing in iterated block
substitution systems
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| 30 |
5,835,601 |
File editing system and shared file editing system with file content
secrecy, file version management, and asynchronous editing
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| 31 |
5,835,600 |
Block encryption algorithm with data-dependent rotations
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| 32 |
5,825,892 |
Protecting images with an image watermark
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| 33 |
5,825,887 |
Transmitting and receiving apparatus for full code correlation operation
under encryption for satellite positioning system
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| 34 |
5,825,879 |
System and method for copy-protecting distributed video content
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| 35 |
5,825,875 |
Process for loading a protected storage zone of an information
processing device, and associated device
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| 36 |
5,822,434 |
Scheme to allow two computers on a network to upgrade from a non-secured
to a secured session
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| 37 |
5,815,577 |
Methods and apparatus for securely encrypting data in conjunction with a
personal computer
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| 38 |
5,815,571 |
Computer system with secured data paths and method of protection
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| 39 |
5,802,177 |
Apparatus for radio local loop system
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| 40 |
5,796,836 |
Scalable key agile cryptography
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| 41 |
5,794,207 |
Method and apparatus for a cryptographically assisted commercial network
system designed to facilitate buyer-driven conditional purchase offers
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| 42 |
5,790,667 |
Personal authentication method
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| 43 |
5,784,459 |
Method and apparatus for secure, remote swapping of memory resident
active entities
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| 44 |
5,774,554 |
Postage meter system and verification of postage charges
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| 45 |
5,774,550 |
Vehicle security device with electronic use authorization coding
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| 46 |
5,774,546 |
Secure access system utilizing an access card having more than one
embedded integrated circuit and/or plurality of security levels
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| 47 |
5,771,289 |
Method and apparatus for transmitting electronic data using attached
electronic credits to pay for the transmission
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| 48 |
5,770,846 |
Method and apparatus for securing and authenticating encoded data and
documents containing such data
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| 49 |
5,768,372 |
Method and apparatus for securing programming data of a programmable
logic device
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| 50 |
5,761,306 |
Key replacement in a public key cryptosystem
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