Modular multiplication without trial division
Peter L. Montgomery
Abstract
Peter L. Montgomery
Abstract
Let N > 1 N > 1 . We present a method for multiplying two integers (called N-residues ) modulo N while avoiding division by N . N -residues are represented in a nonstandard way, so this method is useful only if several computations are done modulo one N . The addition and subtraction algorithms are unchanged.
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Let N > 1 N > 1 . We present a method for multiplying two integers (called N-residues ) modulo N while avoiding division by N . N -residues are represented in a nonstandard way, so this method is useful only if several computations are done modulo one N . The addition and subtraction algorithms are unchanged.
Key concepts: Mathematics, Modulo, Algorithm, Arithmetic, Combinatorics