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7409543 |
Method and apparatus for using a third party authentication server
A method and apparatus for a third party authentication server is described. The method includes receiving a record ID for a user, and a one-time key generated by the server and encrypted with a...
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7409545 |
Ephemeral decryption utilizing binding functions
A method and system is disclosed for utilizing an ephemeral encryption or decryption agent so as to preclude access by the ephemeral encryption agent or decryption agent, respectively, to the...
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7406173 |
Quantum communication apparatus and quantum communication method
A quantum communication apparatus is used in operations to generate entanglement between the two physical system ensembles and operations to extend the distance between entangled ensembles by...
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7404089 |
Method and system for protecting against side channel attacks when performing cryptographic operations
A method and system for protecting against side channel attacks on cryptographic systems that attempt to recover information from externally detectable signals, such as electromagnetic fields or...
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7404077 |
Extension of X.509 certificates to simultaneously support multiple cryptographic algorithms
A technique permitting an X.509 certificate to simultaneously support more than one cryptographic algorithm. An alternative public key and alternative signature are provided as extensions in the...
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7403614 |
Encryption apparatus
An encryption apparatus for performing an encryption operation using a public key encryption technique includes a public key encryption processor for performing an encryption operation using a...
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7397917 |
Method and apparatus for generating a cryptographic key
A method and apparatus are provided for generating a cryptographic key from multiple data sets each related to a respective association of a trusted party and user identity. The cryptographic key...
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7398388 |
Increasing peer privacy
In a method for increasing peer privacy, a request for a data is received from a data requester and the data is stored at a data provider. A plurality of peers are selected to form a path, where...
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7394902 |
Encryption apparatus, decryption apparatus and encryption system
The present invention pertains to a transmission apparatus for generating an encrypted text by encrypting a plaintext, which includes a parameter storage unit for storing a random parameter (the...
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7391868 |
Implicit certificate scheme
A method of generating a public key in a secure digital communication system, having at least one trusted entity CA and subscriber entities A. For each entity A, the trusted entity selects a unique...
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7389419 |
Methods for supplying cryptographic algorithm constants to a storage-constrained target
The present invention provides for authenticating a message. A security function is performed upon the message. The message is sent to a target. The output of the security function is sent to the...
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7389428 |
Data processing system, data processing method, and program providing medium
The inventive data processing apparatus initially generates verifying values for verifying integrity of contents data stored in a memory device, then stores the verifying values in correspondence...
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7389416 |
Method of verifiably sharing a secret in potentially asynchronous networks
In accordance with the present invention, there is provided a method for sharing a secret value x among n participating network devices via an asynchronous network. The n participating network...
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7386122 |
Method for proving the authenticity or integrity of a message by means of a public exponent equal to the power of two
Proof is established by means of the following parameters: m pairs of private values Q 1 and public values G 1 m>1, a public module n made of the product of f first factors p j , f>2, a...
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7386123 |
Method of implementing in an electronic component a cryptographic algorithm for finding the public exponent
The invention concerns a method for implementing in an electronic component a cryptographic algorithm using calculating means. The invention is characterized in that it consists in carrying out the...
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7382877 |
RSA cryptographic method and system
An RSA cryptographic method and system is provided in which a sender encrypts a message (m) using a public modulus n, and an encryption exponent e that is a function of a sender-chosen string. This...
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7379550 |
Method for the computer-assisted production of public keys for encoding information and device for carrying out said method
A method for generating public keys for encrypting messages includes encrypting a message using a public key. The first message is capable of being decrypted using a private key associated with a...
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7380274 |
E-mail firewall
An e-mail firewall ( 105 ) applies policies to e-mail messages ( 204 ) between a first site and a plurality of second sites in accordance with a plurality of administrator selectable policies ( 216...
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7379546 |
Method for XZ-elliptic curve cryptography
Given a set of elliptic curve points defined over a field F(p) and represented in projective coordinate, a method is presented which allows the embedding of data bits in both the X-coordinate and...
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7376967 |
Method and system for performing asynchronous cryptographic operations
A system and method for performing asynchronous cryptographic operations. A cryptographic toolkit receives requests for cryptographic operations, and initiates the cryptographic operations within a...
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7372963 |
Device for compression and encryption, and device for decompression and decryption
To reduce processing load or processing time required for compression and encryption of data. Data to be compressed, such as image data, is divided into specified block sizes by am image divider (...
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7373521 |
Semiconductor IC, information processing method, information processing device, and program storage medium
A program supplied from a personal computer via an interface 31 is processed according to a program stored in a ROM 36 , developed in a RAM 33 , and executed by a CPU 32 . Data resulted from...
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7373657 |
Method and apparatus for controlling data and software access
A proximity based computer access system is provided. According to the invention, a local key associated with a workstation wirelessly communicates with a local key which is associated with a user....
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7370070 |
Data sharing method, request processing method, program, and apparatus
A data sharing apparatus shares first data with a communication partner. The data sharing apparatus obtains second data from third data by using server-aided computation, and generates fourth data...
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7370196 |
Controlled-content recoverable blinded certificates
In a cryptographic system, a certificate is used to provide information regarding a client device. The certificate is blindly signed by a certifying authority to preserve the anonymity of the...
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7366699 |
Electronic money system, electronic money terminal device, and information card
An electronic money system includes a plurality of electronic money terminals for withdrawing a sum of money which is spent by a user from money data which has been deposited into an information...
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7366299 |
Method for encrypting and decrypting data using derivative equations and factors
A data cryptographer encrypts and decrypts character data of any given length using derivative equations and factors. The use of factors and derivative equations introduces the randomness required...
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7366305 |
Platform and method for establishing trust without revealing identity
One aspect of an embodiment of the invention provides a method and platform to prove to a challenger that a responder device possesses cryptographic information from a certifying manufacturer. This...
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7366911 |
Methods and apparatus for computationally-efficient generation of secure digital signatures
Methods and apparatus are disclosed for generation of secure and efficient digital signatures in an information processing system. The system includes one or more user devices, a signing aid or...
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7362863 |
DES hardware throughput for short operations
A symmetric key cryptographic method is provided for short operations. The method includes batching a plurality of operation parameters ( 1503 ), and performing an operation according to a...
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7363500 |
Tunneled authentication protocol for preventing man-in-the-middle attacks
Systems and methods for preventing a Man-in-the-Middle attack on a communications network, without combining encryption keys of an inner authentication protocol and a tunneling protocol...
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7360079 |
System and method for processing digital documents utilizing secure communications over a network
A system and method for processing communications between a sender computing device and at least one recipient computing device are provided. A sender establishes a secure communication with a...
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7359508 |
Method of securely implementing a cryptography algorithm of the RSA type, and a corresponding component
A method for the secure application of a cryptographic algorithm of the RSA type in an electronic component obtains the value of a public exponent e from a given set of probable values, without a...
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7359507 |
Server-assisted regeneration of a strong secret from a weak secret
Methods for regenerating a strong secret for a user, based on input of a weak secret, such as a password, are assisted by communications exchanges with a set of independent servers. Each server...
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7356140 |
Encrypting device, decrypting device, cryptosystem including the same devices, encrypting method, and decrypting method
A cryptosystem includes an encrypting device, a communication path, and a decrypting arithmetic device. Key generation means in the encrypting device generate a public key {g 1 , g 2 } as random...
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7350071 |
Encrypted and non-encrypted communication of message data
A first datum of a message is communicated from a first computing device to a second computing device with encryption of the first datum. A second datum of the message is communicated from the...
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7346159 |
Generic modular multiplier using partial reduction
An apparatus multiplies a first and a second binary polynomial X(t) and Y(t) over GF(2), where an irreducible polynomial M m (t)=t m +a m−1 t m−1 +a m−2 t m−2 t m−2 + . . . +a 1 t+a 0 ,...
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7346834 |
Randomizer systems for producing multiple-symbol randomizing sequences
A system that produces one or more non-repeating randomizer sequences of up to 2 m −1 or more m-bit symbols includes a randomizer circuit that is set up in accordance with a polynomial with...
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7346162 |
Public key cryptography using matrices
The invention provides techniques for secure messages transmission using a public key system to exchange secret keys. A first entity creates public and private keys by generating a product n of two...
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7340606 |
Digital certificates
A method for producing a certificate, the certificate including data, the method including choosing a seed s, the seed s including a result of applying a function H to the data, generating a key...
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7340054 |
Information processing method, decrypting method, information processing apparatus, and computer program
An information processing method, decrypting method, information processing apparatus, and computer program are provided. An information processing method generates a hierarchical tree used to...
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7337315 |
Efficient certificate revocation
A method and system for overcoming the problems associated with certificate revocation lists (CRL's), for example, in a public key infrastructure. The invention uses a tree-based scheme to replace...
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7334127 |
Key agreement and transport protocol
A key establishment protocol includes the generation of a value of cryptographic function, typically a hash, of a session key and public information. This value is transferred between...
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7333632 |
Image authenticating methods
To authenticate images taken by image capturing elements ( 3 ) of offending vehicles, for example, when exceeding the authorized speed, provided elements are provided for allowing informative data...
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7330549 |
Method of producing a cryptographic unit for an asymmetric cryptography system using a discrete logarithm function
The invention relates to a group of public-key cryptography schemas that use the discrete logarithm problem with the purpose of reducing the cost of developing, producing and maintaining a...
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7328344 |
Authority-neutral certification for multiple-authority PKI environments
A method for facilitating electronic certification, and systems for use therewith, are presented in the context of public key encryption infrastructures. Some aspects of the invention provide...
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7321658 |
Padding application method ensuring security of cryptosystem and encryptor/decryptor
An encryptor/decryptor capable of achieving secure cryptographic communication by applying appropriate padding to a cryptosystem such as NTRU cryptosystems. When an n-bit plaintext M is received,...
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7317794 |
Enciphering and deciphering apparatus, and enciphering and deciphering method
The present invention aims at providing a novel enciphering and deciphering apparatus and an enciphering and deciphering method related thereto, which are respectively capable of contracting the...
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7313381 |
Sim based authentication as payment method in public ISP access networks
The invention is a method and system for obtaining connection to a packet data network ( 14 ). The invention includes inputting a user request to a first network ( 10 ) which requests that the user...
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7313697 |
Method for authentication
A method for authentication and identification uses different keys for the prover and the verifier, but on the other hand dispenses with the utilization of long number modulo arithmetic by the use...
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