Apple Inc.

Peter Kiehtreiber

Christopher S Linn

Michael J Smith

Simon P Cooper

Bruce Bartholomew Gaya

Jacques Anthony Vidrine

Jussi-Pekka Mantere

Braden Jacob Thomas

John William Scalo

Randy D Saldinger

Alexander Tony Maluta

Eugene Ray Tyacke

Ivan Krstic

Michael Brouwer

Pierre-Olivier J Martel

Adele C Peterson

Samuel M Weinig

Ian J Baird

Yongjun Zhang

Olivier Gutknecht

Gregory I Kerr

Love Hornquist Astrand

A novel security framework that is part of an operating system of a device is provided. The framework includes a security assessor that performs security policy assessments for different operations that need to be performed with respect to an application executing on the device. Examples of such operations include the installation of the application, execution of the application, and the opening of content files (e.g., opening of documents) by the application.

Centralized operation management

According to one embodiment, in response to an inquiry received from a first application for an extension service associated with a first of a plurality of extension points of an operating system, a list of one or more extensions is identified that have been registered for the first extension point with the operating system, where the first application is executed within a first sandboxed environment. The identified list of extensions is displayed to prompt a user to select one of the extensions to be associated with the first application. In response to a selection of one of the extensions, the selected extension is launched in a second sandboxed environment. The selected extension and the second application were packaged in an application bundle, and when the application bundle was installed, the selected extension and the second application appeared in a registry of the operating system as separate applications.

Consistent extension points to allow an extension to extend functionality of an application to another application

Resource restrictions are associated with a user identifier. A resource restriction agent receives operating system calls related for resources and provides resource request data to a resource agent. The resource agent determines whether the resource is restricted based on the resource request data and resource restriction data and generates access data based on the determination. The resource restriction agent grants or denies the system call based on the access data.

Resource restriction systems and methods

According to one embodiment, in response to a request received from an application by a launch module hosted by an operating system and executed by a processor to dynamically load a library, a library validation module hosted by the operating system extracts a first team identifier (ID) from the application, where the first team ID identifies an application provider that provides the application. The library validation module extracts a second team ID from the library, where the second team ID identifies a library provider that provides the library. The first team ID and the second team ID are compared to determine whether the first team ID matches the second team ID. In response to determining that the first team ID matches the second team ID, the launch module launches the library to allow the application communicate with the library; otherwise, the request is denied.

Method for validating dynamically loaded libraries using team identifiers

The present invention discloses a method for quickly and easily authenticating large computer program. The system operates by first sealing the computer program with digital signature in an incremental manner. Specifically, the computer program is divided into a set of pages and a hash value is calculated for each page. The set of hash values is formed into a hash value array and then the hash value array is then sealed with a digital signature. The computer program is then distributed along with the hash value array and the digital signature. To authenticate the computer program, a recipient first verifies the authenticity of the hash value array with the digital signature and a public key. Once the hash value array has been authenticated, the recipient can then verify the authenticity of each page of the computer program by calculating a hash of a page to be loaded and then comparing with an associated hash value in the authenticated hash value array. If the hash values do not match, then execution may be halted.

Method and apparatus for incremental code signing

A code authentication architecture is used to sign code by adding one or more digital signatures to it. The digital signatures identify what authority signed the code, what the code contains, what type of program the code is, or other identifying information. When the signed code is later executed on a computer system, its identity is obtained by accessing encrypted information of the code stored on disk. The architecture then determines whether the identity satisfies at least one requirement imposed on the code for some purpose. If the code has been altered from when it was signed or it fails to satisfy a requirement imposed, the code will not have a valid identity. In addition to verifying the identity of the code, the architecture also validates executing code immediately responsible for managing the code and additional executing code in a chain of hosts responsible for managing one another.

System and method for authenticating code executing on computer system

Growing community of inventors

Campbell, CA, United States of America

Peter Kiehtreiber