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
$93.74
Apple Inc.
-1.09
GOOG
$693.01
Alphabet Inc.
+1.99
MSFT
$49.87
Microsoft Corporation
-0.03
MacNews Search:
Community Search:
view counter

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

The beginner's guide to Warbits
Warbits is a turn-based strategy that's clearly inspired by Nintendo's Advance Wars series. Since turn-based strategy games can be kind of tricky to dive into, see below for a few tips to help you in the beginning. Positioning is crucial [Read more] | Read more »
How to upgrade your character in Spellsp...
So you’ve mastered the basics of Spellspire. By which I mean you’ve realised it’s all about spelling things in a spire. What next? Well you’re going to need to figure out how to toughen up your character. It’s all well and good being able to spell really, really long words, but it’s not going to mean a thing if your gear isn’t up to scratch. [Read... | Read more »
5 slither.io mash-ups we'd love to...
If there's one thing that slither.io has proved, it's that the addictive gameplay of Agar.io can be transplanted onto basically anything and it will still be good fun. It wouldn't be surprising if we saw other developers jumping on the bandwagon, and we've come up with five major games that we think could benefit from taking a leaf out of slither.... | Read more »
How to navigate the terrain in Sky Charm...
Sky Charms is a whimsical match-'em up adventure that uses creative level design to really ramp up the difficulty. [Read more] | Read more »
Victorious Knight (Games)
Victorious Knight 1.3 Device: iOS Universal Category: Games Price: $1.99, Version: 1.3 (iTunes) Description: New challenges awaits you! Experience fresh RPG experience with a unique combat mechanic, packed with high quality 3D visual content, set in fantasy medieval theme. | Read more »
Agent Gumball - Roguelike Spy Game (Gam...
Agent Gumball - Roguelike Spy Game 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: Someone’s been spying on Gumball. What the what?! Two can play at that game! GO UNDERCOVERSneak past enemy patrols to collect secrets, plant bugs, take down targets, and rescue missing agents. Which spy will... | Read more »
Runaway Toad (Games)
Runaway Toad 1.0 Device: iOS Universal Category: Games Price: $2.99, Version: 1.0 (iTunes) Description: It ain’t easy bein’ green! Tap, hold, and swipe to help Toad hop to safety in this gorgeous new action game from the creators of Super Splatters! and illustrator Nina Limarev.Story | Read more »
PsyCard (Games)
PsyCard 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: From the makers och Card City Nights, Progress To 100 and Ittle DewPSYCARD is a minesweeper-like game set in a cozy cyberpunk dystopia.Use your psychic powers, and some risky luck, to determine the position of the hidden cards and... | Read more »
Sago Mini Robot Party (Education)
Sago Mini Robot Party 1.0 Device: iOS Universal Category: Education Price: $2.99, Version: 1.0 (iTunes) Description: -- Children's Technology Review Editor's Choice -- | Read more »
Egz – The Origin of the Universe (Games...
Egz – The Origin of the Universe 1.0.2 Device: iOS Universal Category: Games Price: $3.99, Version: 1.0.2 (iTunes) Description: ►►► Special offer until 2nd may : get the game at 2.99€ instead of 3.99€ ! ◄◄◄Egz is a mesmerizing mix between an addictive action puzzle game and an animated movie! Don’t let your Egz die! | Read more »
All contents are Copyright 1984-2010 by Xplain Corporation. All rights reserved. Theme designed by Icreon.