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Computational method, system, and apparatus

  • US 7,233,970 B2
  • Filed: 02/16/2002
  • Issued: 06/19/2007
  • Est. Priority Date: 05/02/2001
  • Status: Active Grant
First Claim
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1. An apparatus for performing exponentiations, comprising:

  • a set of computational devices containing first and second subsets, wherein the first subset has a plurality of members which are chained together such that the devices of the first subset can operate both independently and as members of a first computational chain, and wherein the second subset has a plurality of members which are chained together such that the devices of the second subset can operate both independently and as members of a second computational chain distinct from said first computational chain; and

    a chaining controller adapted to instruct the first subset of devices to act as a first computational chain when the apparatus is required to perform an exponentiation of a first size, and being further adapted to instruct the second subset of devices to act as a second computational chain when the apparatus is required to perform an exponentiation of a second size distinct from said first size;

    wherein each computational device is adapted to perform 1024-bit exponentiation, wherein said chaining controller is adapted to instruct the first subset of devices to act as a first computational chain when the apparatus is required to perform 2048-bit exponentiation, and wherein said chaining controller is adapted to instruct the second subset of devices to act as a second computational chain when the apparatus is required to perform 4096-bit exponentiation.

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