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8175276 |
Encryption apparatus with diverse key retention schemes
An encryption apparatus (14) includes a secure processing system (12) in the form of an integrated circuit. The secure processing system (12) includes an on-chip secure memory system (30). The...
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8170216 |
Techniques for validating and sharing secrets
Techniques for validating and sharing secrets are presented. A secret is divided into a plurality of parts. Each part is represented by a unique value. Each value is distributed to a unique user...
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8171525 |
Enabling users to select between secure service providers using a central trusted service manager
Systems and methods are described herein for enabling users to select from available secure service providers (each having a Trusted Service Manager (“TSM”)) for provisioning applications and ser...
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8166086 |
Method and circuit for generating random numbers, and computer program product therefor
A random number generator uses the output of a true random generator to alter the behavior of a pseudo-random number generator. The alteration is performed by a mixing logic that builds a random...
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8160244 |
Stateless hardware security module
Stateless hardware security modules facilitate securing data transfers between devices in a data communication system. The stateless hardware security module may communicate with other devices via...
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8155322 |
Systems and methods for distributing and securing data
A robust computational secret sharing scheme that provides for the efficient distribution and subsequent recovery of a private data is disclosed. A cryptographic key may be randomly generated and...
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8151112 |
Deliver-upon-request secure electronic message system
A method of delivering electronic mail messages upon requests and managing public-secret key pairs of public key cryptography in an electronic message system. A sending party sends an...
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8144866 |
Method and system for securing data utilizing redundant secure key storage
A system and method which protects a data processing system against encryption key errors by providing redundant encryption keys stored in different locations, and providing the software with the...
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8144876 |
Validating encrypted archive keys with MAC value
An apparatus and a method for validating encrypted archive keys is described. In one embodiment, a passphrase is received. An archive key is recovered with the passphrase. A Message Authentication...
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8139770 |
Cryptographic key backup and escrow system
A system for securely storing application keys is comprised of a database system, a peripheral hardware security module and cryptographic keys, wherein cryptographic keys comprise application keys,...
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8135954 |
Distributed digital signature generation
A server, e.g., a client (105, 107, 109), receives a request for a digital signature to be applied to digital information, obtains a representation of the information, determines a designation of...
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8135135 |
Secure data protection during disasters
In situations, such as disasters, where the physical protection of data may be compromised, algorithmic protection of such data can be increased in anticipation of the disaster. An off-site...
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8135132 |
Method and system for secure storage, transmission and control of cryptographic keys
A system and method are described supporting secure implementations of 3DES and other strong cryptographic algorithms. A secure key block having control, key, and hash fields safely stores or...
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8130965 |
Retrieval and transfer of encrypted hard drive content from DVR set-top boxes to a content transcription device
A system and method for the retrieval and transfer of encrypted content from a failed set-top box by a content transcription device. When content is recorded to the storage device of a set-top box,...
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8130959 |
Rekeying encryption for removable storage media
Provided are a method, system, and article of manufacture for rekeying encryption keys for removable storage media. A rekey request is received for a coupled removable storage media, wherein...
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8121296 |
Method and apparatus for security in a data processing system
Method and apparatus for secure transmissions. Each user is provided a registration key. A long-time updated broadcast key is encrypted using the registration key and provided periodically to a...
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8116243 |
Wireless sensor network and adaptive method for monitoring the security thereof
The present invention relates to a sensor network having node architecture for performing trust management of neighboring sensor nodes, and to an adaptive method for performing trust management of...
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8112638 |
Secure backup system and method in a mobile telecommunication network
The secure backup system is in a mobile telecommunication network and has at least one mobile station with data, a backup entity for storing a backup file of the data, and cryptographic means for...
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8112790 |
Methods and apparatus for authenticating a remote service to another service on behalf of a user
Methods and apparatus are provided for authenticating a remote service to another service on behalf of a user. A user client authorizes a remote application client to perform one or more actions...
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8107623 |
Method for verifying a first identity and a second identity of an entity
A method for verifying a first identity and a second identity of an entity, said method comprising: receiving first identity information at a checking entity; sending second identity information...
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8099607 |
Asymmetric crypto-graphy with rolling key security
A system for securing information, includes a processor and storage device. The storage device stores information encrypted with one of a first private rolling key and a first public rolling key of...
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8098828 |
Key distribution
Methods and systems are provided for trusted key distribution. A key distribution or an identity service acts as an intermediary between participants to a secure network. The service provisions and...
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8098825 |
Method and system for enhancing data encryption using multiple-key lists
A method for enhancing data encryption using multiple-key lists is disclosed. A first multiple-key list and a second multiple-key list for a decryption key are created, wherein each multiple-key...
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8098829 |
Methods and systems for secure key delivery
An embodiment pertains generally to a method of delivering keys in a server. The method includes generating a subject key pair, where the subject key pair includes a subject public key and a...
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8099609 |
Information processing apparatus and key recovery method
According to one embodiment, an information processing apparatus includes a receiving device including a tuner unit which receives broadcast program data, a first nonvolatile memory which stores an...
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8085938 |
Secret information management scheme based on secret sharing scheme
In a secret information management system for managing a secret information of a user, the secret information is divided into a plurality of divided data by using a secret sharing scheme, such that...
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8074069 |
Reading a locked windows NFTS EFS encrypted computer file
Embodiments of the invention relate to reading at least one locked, encrypted computer file encrypted by an encryption filter driver running on an operating system of a computer system, with an...
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8074067 |
Member certificate acquiring device, member certificate issuing device, group signing device, and group signature verifying device
It is an object of the present invention to enhance the security and reduce the data amount of data to be handled in a group signing system, in which when the group public key which includes: a...
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8074076 |
Method to protect a cryptographic assembly by homographic masking
This invention relates to a method to protect an assembly implementing a cryptographic calculation process which uses a homographic function f of type: f(z)=(az+b)/(cz+d) when (cz+d) is not equal...
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8074073 |
Certificate-based encryption and public key infrastructure
A digital message is sent from a sender to a recipient in a public-key based cryptosystem comprising an authorizer. The authorizer can be a single entity or comprise a hierarchical or distributed...
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8064898 |
Call management in a telecommunications system
A system and method of covertly monitoring a communications device, the method that includes using a separate monitoring device to monitor a monitored communications device, without any indication...
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8060918 |
Method and system for verifying identity
Verification facilitating company or companies X and verifying company or companies (e.g., credit service company or companies) Y may respectively manage member ID(s) and password(s) of user(s) 1...
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8059814 |
Techniques for carrying out seed or key derivation
A technique carries out seed (or key) derivation within an electronic apparatus (e.g., a hand holdable electronic apparatus such as a token, an authentication server, etc.). The technique involves...
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8059821 |
Method and system for disaster recovery in network systems
A method and apparatus for managing and backing-up a set of security keys are disclosed. The keys are generated first at a backup site and then are transmitted from the backup site to the primary...
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8060902 |
System for receiving broadcast digital data comprising a master digital terminal, and at least one slave digital terminal
The system for receiving broadcast digital data (in particular pay television services) comprises a master digital terminal (1), and at least one slave digital terminal (2) connected to the master...
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8055911 |
Method for backing up and restoring an encryption key
The present invention allows creation of a backup key for backing up an encryption key inside a source trusted chip, encrypting the encryption key with the backup key, exporting the encrypted...
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8054978 |
Key management for content protection
A method for content access control operative to enable authorized devices to access protected content and to prevent unauthorized devices from accessing protected content, the method comprising:...
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8050409 |
Threshold and identity-based key management and authentication for wireless ad hoc networks
As various applications of wireless ad hoc network have been proposed, security has become one of the big research challenges and is receiving increasing attention. The present invention provides...
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8041944 |
Group signature system and information processing method
In a group signature system of the present invention, user device 400 registered in the group, when receiving an issuing device public key of a set that includes order N of a cyclic group and its...
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8041943 |
Revocation list improvement
A method for enforcing use of certificate revocation lists in validating certificates, the lists being associated with a series of list generation indices such that each list is assigned one index...
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8032744 |
Method and apparatus for self-authenticating digital records
A method for proving the validity of a digital document digitally signed using a digital key that corresponds to a digital certificate in a chain of digital certificates issued by certification...
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8024572 |
Data storage and removal
A system and method for data storage and removal includes providing databases and providing encryption keys. Each database is associated with a database time period and each encryption key is...
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8024582 |
Encryption of data to be stored in an information processing system
The aim of the invention is to provide a means of encrypting company-related data which also ensures that the data can be reproduced if the key is lost. To this end, the invention provides a method...
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8014530 |
Method and apparatus for authenticated, recoverable key distribution with no database secrets
A method and apparatus for authenticated recoverable key distribution are described. In one embodiment, an application key is provided to an integrated chip platform. In one embodiment, the...
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7986785 |
Data management
Embodiments of methods, apparatuses, devices, and/or systems for data copyright management are described.
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7970141 |
Method and apparatus for tracing the source of decryption keys used by a decoder
The present invention relates to a method for traitor tracing. One embodiment of a method for determining at least one traced private key used by a decoder to decrypt an encrypted message includes...
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7957532 |
Data protection for a mobile device
A network-based data protection scheme for a mobile device utilizes encryption techniques and a remote key server that stores encryption keys on behalf of the mobile device. The mobile device...
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7958351 |
Method and apparatus for multi-level security implementation
A method of operating a multi-level security system including the steps of providing a plurality of processors. At least some of said processors are equipped with a data card which permits...
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7949138 |
Secure instant messaging
Secure instant messaging is described. In an embodiment, a messaging device encrypts a challenge identifier to generate an encrypted challenge message, and communicates the encrypted challenge...
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7945605 |
Method for accelerating the computational speed of a computer algorithm
A new technique for accelerating the computational speed of a computer algorithm is provided. The inventive technique can be applied to video compression/decompression algorithms, optical character...
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