| 7039946 |
Piggy-backed key exchange protocol for providing secure, low-overhead browser connections when a client requests a server to propose a message encoding scheme |
| May-2-2006 |
A method, system, and computer program product for establishing security parameters that are used to exchange data on a secure connection. A piggy-backed key exchange protocol is defined, with which these... |
| 7032112 |
Account authority digital signature (AADS) system using transactional account information |
| Apr-18-2006 |
In a system for performing an action regarding an account in response to an electronic communication received from a sender by a receiver, wherein the electronic communication includes sender identity... |
| 7031469 |
Optimized enveloping via key reuse |
| Apr-18-2006 |
The present invention provides optimized enveloping for a public key cryptography system. A sender may reuse a secret key in multiple communications to a recipient without the need to recompute or re-encrypt... |
| 7020282 |
Simplified secure, swift cryptographic key exchange |
| Mar-28-2006 |
One aspect of the present invention establishes a session key by a receiving unit R transmitting a plurality of quantities for storage in a public repository. A sending unit S: |
| 7010691 |
ABDS system utilizing security information in authenticating entity access |
| Mar-7-2006 |
AA system in which a requesting entity seeking access to a controlled resource is authenticated by an access authentication component includes the requesting entity initially opening a security account... |
| 7007170 |
System, method, and apparatus for securely providing content viewable on a secure device |
| Feb-28-2006 |
A system, apparatus, and method are directed to providing and securely viewing secure content. In one embodiment, a secure player provides secure screening/previewing of secure content, such as a motion... |
| 7007164 |
Method and array for authenticating a first instance and a second instance |
| Feb-28-2006 |
In order to authenticate a first entity at a second entity, a first number is generated by way of an asymmetric cryptographic method. This first number is symmetrically encoded and transmitted to the second... |
| 6993134 |
Key exchange via a portable remote control device |
| Jan-31-2006 |
The communications means that are commonly provided for the remote control of electronic components are utilized to effect an exchange of parameters to facilitate a cryptographic key exchange. The bidirectional... |
| 6983368 |
Linking public key of device to information during manufacture |
| Jan-3-2006 |
A method in which information pertaining to a device (104) generating digital signatures (122) is reliably identified includes manufacturing (102) devices in a secure environment (114)... |
| 6981154 |
Account authority digital signature (AADS) accounts |
| Dec-27-2005 |
A method of managing accounts by an account authority for the same account holder includes associating identity information for each account with the same public key. A method for establishing a new account... |
| 6978369 |
Person-centric account-based digital signature system |
| Dec-20-2005 |
In a method of managing a database of existing accounts (214) for account holders (202), each account holder (202) has multiple accounts with one or more account authorities (212)... |
| 6978025 |
Method and apparatus for managing public keys through a server |
| Dec-20-2005 |
One embodiment of the present invention provides a system for managing public keys through a server that stores associations between public keys and email addresses. This system operates by receiving a... |
| 6971007 |
Assured printing of documents of value |
| Nov-29-2005 |
The transmission and reproduction of an original document transferred via a data network can be assured when the printing mechanism generates a unique serial number for the document being printed. The... |
| 6970562 |
System and method for crypto-key generation and use in cryptosystem |
| Nov-29-2005 |
A first processor generates a private crypto-key and a public crypto-key. The first processor divides the private crypto-key into two portions, a first private key portion, based upon a user's password,... |
| 6959390 |
Data processing system and method for maintaining secure user private keys in non-secure storage |
| Oct-25-2005 |
A data processing system and method are disclosed for maintaining secure user private keys in a non-secure storage device. A master key pair is established for the system. The master key pair includes... |
| 6959381 |
Central key authority (CKA) database for user accounts in ABDS system |
| Oct-25-2005 |
A Central Key Authority (CKA) database includes PuK-linked account information of users, wherein the PuK-linked account information maintained in the database for each user includes, (a) a public key of... |
| 6957336 |
Establishing initial PuK-linked account database |
| Oct-18-2005 |
An initial Puk-linked account database is established by (a) maintaining the database in a secure environment, (b) recording in the database for each one of a plurality of devices manufactured in the secure... |
| 6934392 |
Split-key key-agreement protocol |
| Aug-23-2005 |
This invention relates to a method for generating a shared secret value between entities in a data communication system, one or more of the entities having a plurality of members for participation in the... |
| 6931379 |
IC card system and IC card |
| Aug-16-2005 |
An IC card that allows a service provider doing a business of loading an application into the IC card to dynamically load the application into the IC card safely after the issuance of the IC card without... |
| 6931128 |
Methods and systems for generating encryption keys using random bit generators |
| Aug-16-2005 |
A security key, such as an encryption key, is generated so as to make it more difficult for eavesdroppers to identify the key. Specifically, a cryptographically secure random number generator generates... |
| 6928167 |
Method for managing public key |
| Aug-9-2005 |
In a network having hierarchical domain names and a DNS server for managing the correspondence between the domain name and the address located at each hierarchy, each DNS server provides a module for managing... |
| 6912657 |
Method and arrangement in a communication network |
| Jun-28-2005 |
The present invention relates to the problem of establishing of security that arises within an ad hoc network The problem is solved by using an optical device at a first device to read a public key that... |
| 6891953 |
Method and system for binding enhanced software features to a persona |
| May-10-2005 |
A server architecture for a digital rights management system that distributes and protects rights in content. The server architecture includes a retail site which sells content items to consumers, a fulfillment... |
| 6891958 |
Asymmetric spread-spectrum watermarking systems and methods of use |
| May-10-2005 |
Described herein is an audio watermarking technology for detecting watermarks in audio signals, such as a music clip. The watermark identifies the content producer, providing a signature that is embedded... |
| 6868160 |
System and method for providing secure sharing of electronic data |
| Mar-15-2005 |
A system and method for secure sharing of electronic information uses public key encryption in which a key generator algorithmically generates public-private key pairs without requiring storage, maintenance,... |
| 6820124 |
Cryptographic authentication using a network management protocol |
| Nov-16-2004 |
A computer is provided that is able to participate in a challenge-response authentication routine by using a network management protocol. In one embodiment, a first computer issues a challenge to a second... |
| 6813358 |
Method and system for timed-release cryptosystems |
| Nov-2-2004 |
A method and system are provided for timed-release cryptography. A sender encrypts data in a timed-release fashion such that a receiver based on information exchanged with a server decrypts the encrypted... |
| 6810122 |
Secret sharing system and storage medium |
| Oct-26-2004 |
A secret sharing system and a storage medium where each of the n shareholders P1 to Pn holds a (n, n) share di (0.ltoreq.i.ltoreq.n), turns the share di into t(r+1) partial random numbers Sj of the (t,... |
| 6789189 |
Managing account database in ABDS system |
| Sep-7-2004 |
A method of managing accounts in a database in an ABDS system includes recording information pertaining to each of the accounts in the database, (b) assigning a respective unique identifier to each account... |
| 6782100 |
Accelerated finite field operations on an elliptic curve |
| Aug-24-2004 |
A method for multiplication of a point P on elliptic curve E by a value k in order to derive a point kP comprises the steps of representing the number k as vector of binary digits stored in a register... |
| 6775382 |
Method and apparatus for recovering encryption session keys |
| Aug-10-2004 |
A method and apparatus allows a session key for a encrypted message to be recovered even if the recipient loses or forgets his private key. A session key encrypted using the public key of a party other... |
| 6772339 |
Mix and match: a new approach to secure multiparty computation |
| Aug-3-2004 |
A method for secure multiparty computation is disclosed. In one embodiment, participants to a secure computation agree upon a function to be computed and a representation of the function as a circuit with... |
| 6757825 |
Secure mutual network authentication protocol |
| Jun-29-2004 |
A password-only mutual network authentication protocol and key exchange protocol using a public key encryption scheme in which a server generates a public key/secret key pair and transmits the public key... |
| 6745166 |
Contents information recording method, contents information processing unit, contents information deciphering method, contents information deciphering unit and media thereof |
| Jun-1-2004 |
When enciphered contents information is transferred from media A to media B, enciphered key information and ID(A) of the media A are recorded as a control number of data link ID in a memory of a media... |
| 6728379 |
Information processor and information processing method |
| Apr-27-2004 |
An information processor receives at a communication section thereof an encrypted content decryption key generated by encrypting, by a distribution encryption key, a content decryption key for decryption... |
| 6715074 |
Virus resistant and hardware independent method of flashing system bios |
| Mar-30-2004 |
A system and method for making sure that before the ROM BIOS of a personal computer is reprogrammed, the BIOS image is compatible with the computer whose BIOS are being reprogrammed. This is done by requiring... |
| 6704870 |
Digital signatures on a Smartcard |
| Mar-9-2004 |
A digital signature scheme for a "smart" card utilizes a set of prestored signing elements and combines pairs of the elements to produce a new session pair. The combination of the elements is performed... |
| 6697947 |
Biometric based multi-party authentication |
| Feb-24-2004 |
Methods, systems and computer program products are provided which allow for multi-party authentication by receiving a plurality of biometric authentication messages from a corresponding plurality of users.... |
| 6697942 |
Method for remotely managing a remote device using an electronic mail message |
| Feb-24-2004 |
A data formatting method for embedding diverse data types in an electronic mail message includes the step of forming a network compliant electronic mail message header. Command blocks representing diverse... |
| 6651166 |
Sender driven certification enrollment system |
| Nov-18-2003 |
A sender driven certificate enrollment system and methods of its use are provided, in which a sender controls the generation of a digital certificate that is used to encrypt and send a document to a recipient... |
| 6584563 |
User support system for cryptographic communication in network systems |
| Jun-24-2003 |
A user support system for cryptographic communication includes a key storage unit for storing keys used for deciphering, a deciphering unit for deciphering an enciphered communication text into a deciphered... |
| 6567913 |
Selective security level certificate meter |
| May-20-2003 |
A system includes a device for generating a message; structure for selecting one of a plurality of different private keys stored within the system, each of the plurality of different private keys,providing... |
| 6563928 |
Strengthened public key protocol |
| May-13-2003 |
A cryptosystem utilizes the properties of discrete logs in finite groups, either in a public key message exchange or in a key exchange and generation protocol. If the group selected has subgroups of relatively... |
| 6539479 |
System and method for securely logging onto a remotely located computer |
| Mar-25-2003 |
Prior to a login session, a server computer stores a password verification value v for each of a plurality of authorized users. Each user generates a password verification value v from a secret value x... |
| 6526508 |
Source authentication of download information in a conditional access system |
| Feb-25-2003 |
A cable television system provides conditional access to services. The cable television system includes a headend from which service "instances", or programs, are broadcast and a plurality of set top units... |
| 6493449 |
Method and apparatus for cryptographically secure algebraic key establishment protocols based on monoids |
| Dec-10-2002 |
The present invention is a method and apparatus for providing cryptographically secure algebraic key establishment protocols that use monoids and groups possessing certain algorithmic properties. Special... |
| 6487661 |
Key agreement and transport protocol |
| Nov-26-2002 |
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 correspondents together... |
| 6480605 |
Encryption and decryption devices for public-key cryptosystems and recording medium with their processing programs recorded thereon |
| Nov-12-2002 |
In a public-key cryptosystem based on a multiplicative group, n=p.sup.2 q, where p and q are odd primes, and g, selected from (Z/nZ)* such that g.sub.p =g.sup.r-1 mod p.sup.2 has an order of p in (Z/ p.sup.2... |
| 6445797 |
Method and system for performing secure electronic digital streaming |
| Sep-3-2002 |
A secure electronic digital streaming system provides absolute system security and user-defined message security for electronic digital streaming between two public entities. These digital streams can... |
| 6438235 |
Media content protection utilizing public key cryptography |
| Aug-20-2002 |
A system and method for providing protection of content stored on a bulk storage media is disclosed. The technique for providing protection from unauthorized utilization of the content so stored is provided... |
