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Data encryption interface for reducing encrypt latency impact on standard trafficData encryption interface for reducing encrypt latency impact on standard traffic description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20090144564, Data encryption interface for reducing encrypt latency impact on standard traffic. Brief Patent Description - Full Patent Description - Patent Application Claims
This application is a continuation of co-pending U.S. patent application Ser. No. 10/932,943, filed Sep. 2, 2004, which is herein incorporated by reference in its entirety. This application is related to commonly assigned co-pending application entitled “Low-Latency Data Decryption Interface” (Atty. Docket No. ROC920040013), filed herewith and hereby incorporated by reference in its entirety. 1. Field of the Invention The present invention generally relates to data encryption and, more particularly, to methods and apparatus for reducing latency associated with selectively encrypting portions of data. 2. Description of the Related Art A system on a chip (SOC) generally includes one or more integrated processor cores, some type of embedded memory, such as a cache memory, and peripheral interfaces, such as memory control components and external bus interfaces, on a single chip to form a complete (or nearly complete) system. As part of an enhanced security feature, some SOCs encrypt some portions of data prior to storing it in external memory. Adding such encryption to an SOC may add valuable benefits, such as preventing a hacker from obtaining instructions of a copyrighted program, such as a video game, or data that may be used to determine such instructions through reverse engineering. However, adding encryption typically impacts system performance, as conventional encryption schemes typically stream both data that is to be encrypted and data that is not to be encrypted (non-encrypted data) through a common sequential data path. As a result, non-encrypted data is typically suffers the same latency as encrypted data. This latency may add significant delay to the storing of non-encrypted data. In addition, this latency may prevent the subsequent storage of non-encrypted data while previous data is being encrypted. Accordingly, what is needed is a mechanism to minimize performance impacts on non-encrypted data caused by encryption latency. The present invention generally provides a method and apparatus that can improve the performance of systems with encrypted memory regions while ensuring that encrypted and non-encrypted data are correctly written to their respective memory locations. So that the manner in which the above recited features, advantages and objects of the present invention are attained and can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It is to be noted, however, that the appended drawings illustrate only typical embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments. Continue reading about Data encryption interface for reducing encrypt latency impact on standard traffic... Full patent description for Data encryption interface for reducing encrypt latency impact on standard traffic Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Data encryption interface for reducing encrypt latency impact on standard traffic patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. Each week you receive an email with patent applications related to your keywords. Start now! - Receive info on patent apps like Data encryption interface for reducing encrypt latency impact on standard traffic or other areas of interest. ### Previous Patent Application: Method and system for software protection using binary encoding Next Patent Application: Method and system for asymmetrically encrypting .zip files Industry Class: Electrical computers and digital processing systems: support ### FreshPatents.com Support Thank you for viewing the Data encryption interface for reducing encrypt latency impact on standard traffic patent info. IP-related news and info Results in 2.05113 seconds Other interesting Feshpatents.com categories: Qualcomm , Schering-Plough , Schlumberger , Seagate , Siemens , Texas Instruments , paws |
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