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Dana Jacobsen

Changes for version 0.30

  • API Changes
    • Primality proofs now use the new "MPU Certificate" format, which is text rather than a nested Perl data structure. This is much better for external interaction, especially with non-Perl tools. It is not quite as convenient for all-Perl manipulation.
  • Functions Added
    • is_frobenius_underwood_pseudoprime
    • is_almost_extra_strong_lucas_pseudoprime
    • lucas_sequence
    • pplus1_factor
  • Enhancements
    • Documentation and PP is_prime changed to use extra strong Lucas test from the strong test. This matches what the newest MPU::GMP does. This has no effect at all for numbers < 2^64. No counter-example is known for the standard, strong, extra strong, or almost extra strong (increment 1 or 2) tests. The extra strong test is faster than the strong test and produces fewer pseudoprimes. It retains the residue class properties of the strong Lucas test (where the SPSP-2 pseudoprimes favor residue class 1 and the Lucas pseudoprimes favor residue class -1), hence should retain the BPSW test strength.
    • XS code for all 4 Lucas tests.
    • Clean up is_prob_prime, also ~10% faster for n >= 885594169.
    • Small mulmod speedup for non-gcc/x86_64 platforms, and for any platform with gcc 4.4 or newer.
  • Bug Fixes
    • Fixed a rare refcount / bignum / callback issue in next_prime.
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