🛠️ Invention or technique

Quadratic sieve

Criba cuadrática

Date
1981 · confidence high
Place
Athens, Georgia, United States
Credited to
Carl Pomerance
Field
Knowledge & symbols

What it is

Integer factorization algorithm using sieved square congruences, faster than classical methods for numbers up to about 100 digits; an improvement on Schroeppel's linear sieve.

What it led to

  • cryptanalysis of RSA with moderate key sizes
  • general number field sieve algorithm
  • applied computational number theory
  • modern factorization libraries
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