Apple files for code signing, almost-symmetric multiprocessor patents
TweetFollow Us on Twitter

Apple files for code signing, almost-symmetric multiprocessor patents

Patent number EP1695169 for a "method and apparatus for incremental code signing" is for a method for authenticating a large computer platform. The system operates by first sealing the computer program with a digital signature in an incremental manner. Specifically, the computer program is divided into a set of pages and a hash value is circulated for each page. The set of hash values is formed into a has value array, and then the hash value array is sealed with a digital signature. The computer program is then distributed along with the hash value array and the digital signature. To authenticate the 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 don't match, the execution may be halted. The inventors are listed as Perry Kiehtreibert and Michael Brouwer.

Patent number EP1695216 for almost-symmetric multiprocessor that supports high-performance and energy-efficient execution" is for a system for controlling the execution of tasks in a multiprocessor system, which contains both a high-performance processor and an energy-efficient processor. Upon receiving a task to be executed on the multiprocessor system, the system determines whether to execute the task on the high-performance processor or the energy-efficient processor based on performance requirements for the task and/or energy usage considerations for the multiprocessor system. Next, the system executes the task on either the high-performance processor or the energy-efficient processor based on the determination. The inventors are listed as William C. Athas, Robert L. Mansfield, Lynn R. Youngs and Michael F. Culbert.

 
AAPL
$118.93
Apple Inc.
-0.07
GOOG
$541.83
Google Inc.
+1.46
MSFT
$47.81
Microsoft Corpora
+0.06
MacNews Search:
Community Search:

Latest Forum Discussions

See All
view counter

view counter
view counter
view counter
view counter
view counter
view counter

Mystery Case Files: Dire Grove, Sacred G...
Mystery Case Files: Dire Grove, Sacred Grove HD Review By Jennifer Allen on November 28th, 2014 Our Rating: iPad Only App - Designed for the iPad A decent new installment for the popular Mystery Case Files series.   | Read more »
Castaway Paradise – Tips, Tricks, and St...
Ahoy there, castaways: Were you curious about our own thoughts regarding this pristine shipwreck? Check out our Castaway Paradise review! Castaway Paradise is out for iOS, finally giving mobile gamers the opportunity to enjoy the idyllic lifestyle of an Animal Crossing-like game. Though it may seem straightforward, these tips will go a long way... | Read more »
Castaway Paradise VIP Subs are on Sale f...
Castaway Paradise VIP Subs are on Sale for a Limited Time, and a Special Holiday Update is Coming Soon Posted by Rob Rich on November 28th, 2014 [ | Read more »
Primitive Review
Primitive Review By Jordan Minor on November 28th, 2014 Our Rating: :: FOLK ARTUniversal App - Designed for iPhone and iPad True to its name, Primitive is about as straightforward as runners get.   | Read more »
7 tips to get ahead of the competition i...
7 tips to get ahead of the competition in Dynasty of Dungeons Posted by Simon Reed on November 28th, 2014 [ permalink ] Playcrab has launched their action-packed new dungeon crawler, Dynasty of Dungeons, today. | Read more »
Master of Tea Kung Fu Review
Master of Tea Kung Fu Review By Jordan Minor on November 28th, 2014 Our Rating: :: ONE DROP RULESUniversal App - Designed for iPhone and iPad Master of Tea Kung Fu is a creative and complex caffeinated brawler.   | Read more »
Monster Strike Review
Monster Strike Review By Campbell Bird on November 28th, 2014 Our Rating: :: BILLIARD STRATEGYUniversal App - Designed for iPhone and iPad Collect monsters and battle by flinging them across the battlefield in this strangely compelling strategy game.   | Read more »
Proun+ Review
Proun+ Review By Jennifer Allen on November 28th, 2014 Our Rating: :: TWITCHY RACINGUniversal App - Designed for iPhone and iPad Twitchy racing aplenty in Proun+, an enjoyably tricky title.   | Read more »
Lucha Amigos (Games)
Lucha Amigos 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Forget Ninja Turtles, and meet Wrestlers Turtles! Crazier, Spicier and…Bouncier!Sling carapaces of 7 Luchadores to knock all your enemies out! | Read more »
Record of Agarest War Zero (Games)
Record of Agarest War Zero 1.0 Device: iOS Universal Category: Games Price: $7.99, Version: 1.0 (iTunes) Description: HyperDevbox Holiday Turkey Black Friday Special Pricing!To celebrate the opening of the holiday season HyperDevbox is announcing a special price on their newest title Record of Agarest Zero. Now, for a limited time... | Read more »
All contents are Copyright 1984-2010 by Xplain Corporation. All rights reserved. Theme designed by Icreon.