Where All Roads Meet: Modular Exponentiation

  • Michael Welschenbach

Abstract

In addition to the calculational rules for addition, subtraction, and multiplication in residue classes we can also define an operation of exponentiation, where the exponent specifies how many times the base is to be multiplied by itself. Exponentiation is carried out, as usual, by means of recursive calls to multiplication: For a in ℤ m we have a0:= ī and ae+1 := a · a e .

Keywords

Expense 

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Copyright information

© Michael Welschenbach 2013

Authors and Affiliations

  • Michael Welschenbach
    • 1
  1. 1.SRC Security Research & Consulting GmbHBonnGermany

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