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Enhancing entropy in pseudo-random number generators using remote sources

a technology of pseudo-random numbers and entropy, applied in the field of enhancing entropy, can solve the problems of only ensuring secrecy and making the system even more cumbersom

Inactive Publication Date: 2006-04-06
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the secrecy was only guaranteed to the extent the two users kept the key secret.
Additionally, the method of prior exchange of the key made the system even more cumbersome.

Method used

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  • Enhancing entropy in pseudo-random number generators using remote sources
  • Enhancing entropy in pseudo-random number generators using remote sources
  • Enhancing entropy in pseudo-random number generators using remote sources

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Embodiment Construction

[0014] A method and apparatus are described for enhancing entropy in a pseudo-random number generator using a remote source. Broadly stated, embodiments of the present invention allows the stirring of a pseudo-random number generator using both the local seeding information and, for additional security, remote seeding information generated by remote entropy servers.

[0015] According to one embodiment, one or more remote entropy servers generate seeding information, which is securely gathered along with the local seeding information. An attacker can easily break into a system using only the local seeding information, and predict the state of a PRNG. The use of the remote seeding information adds to the randomness of the PRNG making a system much more secure from cryptographic attacks. Protecting systems from cryptographic attacks by enhancing entropy using remote sources can secure all types of transactions, such as emailing, baking transactions, and communication between application...

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Abstract

A system, apparatus, and method are provided for enhancing entropy in a pseudo-random number generator (PRNG) using remote sources. According to one embodiment of the present invention, first, the PRNG's internal state is initialized. Local seeding information is then obtained from a local host. For added security, additional seeding information is obtained from one or more remote entropy servers operating independently to each maintain a constantly updated state pool. Finally, the PRNG is stirred based upon the local seeding information, and the additional seeding information.

Description

COPYRIGHT NOTICE [0001] Contained herein is material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction of the patent disclosure by any person as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all rights to the copyright whatsoever. FIELD OF THE INVENTION [0002] This invention relates to enhancing entropy, in general, and more specifically to entropy amplification in pseudo-random numbers using remote sources. BACKGROUND OF THE INVENTION [0003] Securing data through encryption / decryption methods, especially, when transmitting it over insecure channels, from cryptographic attacks is widely known. Traditionally, a method of symmetric encryption was used to secure the information between two users. The method of symmetric encryption required creating a single secret key known only to the two users. However, the secrecy was only guaranteed to the extent the two users kept the key secr...

Claims

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Application Information

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IPC IPC(8): H04L9/00
CPCG06F7/58H04L9/30H04L63/06H04L63/166H04L9/0662
Inventor WOOD, MATTHEW D.GRAUNKE, GARY L.
Owner INTEL CORP
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