openssl/tools/primes.py
Felix Laurie von Massenbach 982c42cb20 Try skipping over the adding and just picking a new random number.
Generates a number coprime to 2, 3, 5, 7, 11.

Speed:
Trial div (add) : trial div (retry) : coprime
1 : 0.42 : 0.84
2014-06-01 15:31:26 +01:00

22 lines
444 B
Python

primes = [2, 3, 5, 7, 11]
safe = False # Not sure if the period's right on safe primes.
muliplier = 1 if not safe else 2
for p in primes:
muliplier *= p
offsets = []
for x in range(3, muliplier + 3, 2):
prime = True
for p in primes:
if not x % p or (safe and not ((x - 1) / 2) % p):
prime = False
break
if prime:
offsets.append(x)
print(offsets)
print(len(offsets))
print(muliplier)