summaryrefslogtreecommitdiff
path: root/lib/srp/client.rb
diff options
context:
space:
mode:
authorAzul <azul@riseup.net>2012-10-04 10:32:39 +0200
committerAzul <azul@riseup.net>2012-10-04 10:32:39 +0200
commitc73f7c1b4c1270d4d0ca47650a12893a6d13e796 (patch)
tree91f3ff3bfddc1abb62c3628833faf0f64d0c55e8 /lib/srp/client.rb
parentb889ef34d4fff0d156901ae2aebfcee02339ce77 (diff)
simplifying modpow to default to BIG_PRIME_N
Diffstat (limited to 'lib/srp/client.rb')
-rw-r--r--lib/srp/client.rb8
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/srp/client.rb b/lib/srp/client.rb
index 65052f5..22ed9f7 100644
--- a/lib/srp/client.rb
+++ b/lib/srp/client.rb
@@ -18,7 +18,7 @@ module SRP
def authenticate(server, username, password)
x = calculate_x(username, password)
a = bigrand(32).hex
- aa = modpow(GENERATOR, a, BIG_PRIME_N) # A = g^a (mod N)
+ aa = modpow(GENERATOR, a) # A = g^a (mod N)
bb = server.handshake(username, aa)
u = calculate_u(aa, bb)
client_s = calculate_client_s(x, a, bb, u)
@@ -28,7 +28,7 @@ module SRP
protected
def calculate_verifier
x = calculate_x
- @verifier = modpow(GENERATOR, x, BIG_PRIME_N)
+ @verifier = modpow(GENERATOR, x)
@verifier
end
@@ -41,9 +41,9 @@ module SRP
def calculate_client_s(x, a, bb, u)
base = bb
base += BIG_PRIME_N * @multiplier
- base -= modpow(GENERATOR, x, BIG_PRIME_N) * @multiplier
+ base -= modpow(GENERATOR, x) * @multiplier
base = base % BIG_PRIME_N
- modpow(base, x * u + a, BIG_PRIME_N)
+ modpow(base, x * u + a)
end
end
end