Symantec Corporation

Symphony Communication Services Holdings LLC

Apple Inc.

Verayo, Inc.

Pure Storage, Inc.

Verisign, Inc.

Symantec Software Corporation

Symantec International

David M'Raihi

Nicolas Popp

Jon McLachlan

Gary Krall

Barry Ferg

Joseph Adler

Michael Harmon

Siddharth Bajaj

Serkan Mulayin

Tim Casey

Jeffrey Burstein

Augustin J Farrugia

Loren L Hart

Christian Tschudin

Roxana Alina Bradescu

Mathieu Ciet

Gianpaolo Fasoli

Nicholas Thomas Sullivan

Thomas Icart

Jean-Pierre Ciudad

Srinivas Devadas

Bruce Ong

Bertrand Mollinier Toublet

Jonathan McLachlan

Yu Tan

Eric Duprat

Meng-Day Yu

Li Zhao

Paul Teyssier

Sitaraman Suthamali Lakshminarayanan

Daniel Nathanson

Christopher Holtz

Kerry E Loftus

Alin M Mutu

Yueqin Lin

Aaron Scales

David Gurle

Ivan Rylach

Bruce Skingle

Sergey Stelmakh

Glenn Anderson

Benjamin Liu

Meng-Day (Mandel) Yu

Loren Hart

Siddarth Bajaj

A communication server, interacting with an organization system having users that wish to communicate securely, provides secure communication capability to the users, without the communication server itself having access to unencrypted content of the user communications or to cryptographic keys that would allow the communication server to derive the unencrypted content. Thus, the communication server that provides the secure communication capability need not itself be trusted by the users with access to communicated content. To achieve this, the various entities communicate to exchange cryptographic keys in such a manner that the communication server never obtains usable copies of the cryptographic keys. Secure search capability is also provided by the client devices supplying a set of message tokens obtained by transformations that the communication server cannot replicate, and the communication server maintaining a search index storing the message tokens in association with the (encrypted) messages from which they were obtained.

Secure message search

Disclosed herein are systems, methods, and non-transitory computer-readable media for enforcing application usage policies. As part of an application purchase transaction, the application distributor creates a unique proof of purchase receipt. This receipt can be bundled with the application and delivered to the purchaser. Each machine can maintain an authorization file that lists the users authorized to use applications on that machine. A system configured to practice the method verifies that a user is authorized to use an application on a machine based on an application proof of purchase receipt and the authorization file. If the application proof of purchase receipt and the authorization file are both valid, the system checks if the user account identifier in the receipt is contained in the authorization file. If so, the user can be considered authorized to use the application on the machine.

Application usage policy enforcement

A secure storage module of a client device interacts with a set of secure storage servers to securely store data items of the client on the servers, such that no individual server has the data in readable (non-obfuscated) form. Additionally, the client secure storage module and the servers interact to allow the client device to read a given portion of the original data items from the servers, such that none of the servers can determine which portion of the original data is being requested. Similarly, the interactions of the client secure storage module and the servers allows the client device to update a given portion of the original data on the servers to a new value, such that none of the servers can determine which portion is being updated and that none of the servers can determine either the prior value or new value or the difference between the new value and the prior value.

Secure information retrieval and update

An exemplary access control system controls access to a computing system such as a data storage system. For example, the exemplary access control system includes a remote management system that receives a request to operate on an element of the computing system and generates a message based on the request and a first token for the remote management system that is associated with the request. The message includes data representative of a second token for the remote management system. The remote management system signs the message and transmits the signed message to the computing system, which is configured to verify and use the signed message, including the second token included in the signed message, to obtain and use a local access token to access and operate on the element in accordance with the request.

Access control for a computing system

An organization that wishes its messages to be secure (the 'communicating organization') uses services of a secure communications infrastructure to securely exchange communications among its users. The secure communications infrastructure allows granting to third-party applications the permission to act on behalf of the users when using the secure communications infrastructure. This delegation may be accomplished at a very granular level, specifying the particular applications that are authorized to act on behalf of a user, the particular operations that those applications are authorized to perform, and/or in which contexts the applications may perform the operations. An agent component acts as an intermediary between third-party applications and the core of the secure communications infrastructure. This permits the third-party application to take actions on behalf of the user, while also preventing the third-party applications from obtaining the security-specific data that could lead to a breach of security.

Authorizing delegated capabilities to applications in a secure end-to-end communications system

Secure end-to-end communications

A random number generator uses a looped circuit that produces pulses dependent on manufacturing variations and noise, and fed into a counting circuit. In certain embodiments, the technology can be merged with a Physical Unclonable Function (PUF) such that a single circuit provides both 1) bits that are unique to each chip that remain fairly similar each time they are queried on the same chip; as well as 2) bits that are random, i.e., different each time the randomness is queried, even on the same device.

Random number generator using an incrementing function

A method of providing web site verification information to a user can include receiving a DNS query including a host name and a seal verification site name, parsing the DNS query, and extracting the host name from the DNS query. The method also can include accessing a DNS zone file including a list of Trust Services customers and determining if the host name is associated with a Trust Services customer in the list of Trust Services customers. The method further can include transmitting a positive identifier to the requester if the host name is associated with a Trust Services customer and transmitting a negative identifier to the requester if the host name is not associated with a Trust Services customer. In a specific embodiment, the Trust Services include issuance of digital certificates.

Optimizing security seals on web pages

In the field of computer and data security, the identifier (ID) of a computing device is protected by providing a secure signature used to verify the ID. The signature is computed from the ID using a 'White Box' cryptographic process and a hash function. This provides a signature that is computationally easy to verify but difficult or impossible to generate by a hacker (unauthorized user). This method of first creating the signature and later verifying the identifier using the signature and the associated computing apparatus are thereby useful for protection against hacking of such identifiers of computing devices.

Secure authentication of identification for computing devices

A system and method for generating a One Time Password (OTP) based upon a value TEC that can change based both upon the occurrence of an event and the passage of time. The OTP can be computed at a token and sent to a verifier. The verifier stores exact or estimated parameters necessary to compute one or more expected OTPs from the token, including TEC. The value TEC can be synchronized between the token and the verifier.

Time and event based one time password

A scalable system and method for authenticating entities such as consumers to entities with a diverse set of authentication requirements, such as merchants, banks, vendors, other consumers, and so on. An authentication credential such as a token can be shared among several resources as a way to authenticate the credential owner.

Token sharing system and method

Growing community of inventors

San Carlos, CA, United States of America

David M'Raihi