diff options
Diffstat (limited to 'rsa/prime.py')
| -rw-r--r-- | rsa/prime.py | 16 |
1 files changed, 2 insertions, 14 deletions
diff --git a/rsa/prime.py b/rsa/prime.py index 340ab94..2157647 100644 --- a/rsa/prime.py +++ b/rsa/prime.py @@ -23,19 +23,8 @@ Roberto Tamassia, 2002. __all__ = [ 'getprime', 'are_relatively_prime'] import rsa.randnum +import rsa.common -def gcd(p, q): - """Returns the greatest common divisor of p and q - - >>> gcd(48, 180) - 12 - """ - - while q != 0: - if p < q: (p,q) = (q,p) - (p,q) = (q, p % q) - return p - def jacobi(a, b): """Calculates the value of the Jacobi symbol (a/b) where both a and b are @@ -137,7 +126,6 @@ def getprime(nbits): # Retry if not prime - def are_relatively_prime(a, b): """Returns True if a and b are relatively prime, and False if they are not. @@ -148,7 +136,7 @@ def are_relatively_prime(a, b): 0 """ - d = gcd(a, b) + d = rsa.common.gcd(a, b) return (d == 1) if __name__ == '__main__': |