Strong primes are easy to find

  • Authors:
  • J A Gordon

  • Affiliations:
  • -

  • Venue:
  • Proc. of the EUROCRYPT 84 workshop on Advances in cryptology: theory and application of cryptographic techniques
  • Year:
  • 1985

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Abstract

A simple method is given for finding strong, random, large primes of a given number of bits, for use in conjunction with the RSA Public Key Cryptosystem. A strong prime p is a prime satisfying: * p = 1 mod r * p = s-1 mod s * r = 1 mod t, where r,s and t are all large, random primes of a given number of bits. It is shown that the problem of finding strong, random, large primes is only 19% harder than finding random, large primes.