aboutsummaryrefslogtreecommitdiff
path: root/paramiko/primes.py
diff options
context:
space:
mode:
authorJeremy T. Bouse <jbouse@debian.org>2011-05-29 08:16:54 -0400
committerJeremy T. Bouse <jbouse@debian.org>2011-05-29 10:15:03 -0400
commitbe5542c05e46b500e47b94bc8a6254cae8335a8b (patch)
tree1d13e6d43698839fb5fedc9a685cc5f634b4bacf /paramiko/primes.py
parent5952c8ac9aff9f0bf1fe295d9ed5c6ec1656d819 (diff)
downloadpython-paramiko-be5542c05e46b500e47b94bc8a6254cae8335a8b.tar
python-paramiko-be5542c05e46b500e47b94bc8a6254cae8335a8b.tar.gz
Imported Upstream version 1.7.7.1
Diffstat (limited to 'paramiko/primes.py')
-rw-r--r--paramiko/primes.py12
1 files changed, 6 insertions, 6 deletions
diff --git a/paramiko/primes.py b/paramiko/primes.py
index 1cf7905..9ebfec1 100644
--- a/paramiko/primes.py
+++ b/paramiko/primes.py
@@ -26,12 +26,12 @@ from paramiko import util
from paramiko.ssh_exception import SSHException
-def _generate_prime(bits, randpool):
+def _generate_prime(bits, rng):
"primtive attempt at prime generation"
hbyte_mask = pow(2, bits % 8) - 1
while True:
# loop catches the case where we increment n into a higher bit-range
- x = randpool.get_bytes((bits+7) // 8)
+ x = rng.read((bits+7) // 8)
if hbyte_mask > 0:
x = chr(ord(x[0]) & hbyte_mask) + x[1:]
n = util.inflate_long(x, 1)
@@ -43,7 +43,7 @@ def _generate_prime(bits, randpool):
break
return n
-def _roll_random(rpool, n):
+def _roll_random(rng, n):
"returns a random # from 0 to N-1"
bits = util.bit_length(n-1)
bytes = (bits + 7) // 8
@@ -56,7 +56,7 @@ def _roll_random(rpool, n):
# fits, so i can't guarantee that this loop will ever finish, but the odds
# of it looping forever should be infinitesimal.
while True:
- x = rpool.get_bytes(bytes)
+ x = rng.read(bytes)
if hbyte_mask > 0:
x = chr(ord(x[0]) & hbyte_mask) + x[1:]
num = util.inflate_long(x, 1)
@@ -75,7 +75,7 @@ class ModulusPack (object):
# pack is a hash of: bits -> [ (generator, modulus) ... ]
self.pack = {}
self.discarded = []
- self.randpool = rpool
+ self.rng = rpool
def _parse_modulus(self, line):
timestamp, mod_type, tests, tries, size, generator, modulus = line.split()
@@ -147,5 +147,5 @@ class ModulusPack (object):
if min > good:
good = bitsizes[-1]
# now pick a random modulus of this bitsize
- n = _roll_random(self.randpool, len(self.pack[good]))
+ n = _roll_random(self.rng, len(self.pack[good]))
return self.pack[good][n]