From 4f57d8010a90fe1221c351f695d15d29a9cdc37f Mon Sep 17 00:00:00 2001
From: Azul <azul@riseup.net>
Date: Wed, 3 Oct 2012 16:59:46 +0200
Subject: calculate verifiers and multiplier just like in py srp

Some other parts are still missing. Main issue was using hashes of hex representation rather that hashes of byte arrays
---
 test/client_test.rb | 29 +++++++++++++++++++++++++++++
 test/util_test.rb   | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 test/client_test.rb
 create mode 100644 test/util_test.rb

(limited to 'test')

diff --git a/test/client_test.rb b/test/client_test.rb
new file mode 100644
index 0000000..8ef53aa
--- /dev/null
+++ b/test/client_test.rb
@@ -0,0 +1,29 @@
+require File.expand_path(File.dirname(__FILE__) + '/test_helper')
+
+class ClientTest < Test::Unit::TestCase
+
+  def setup
+    @login = "testuser"
+    @password = "password"
+    @salt = "7686acb8"
+    @client = SRP::Client.new("testuser", "password", "7686acb8")
+  end
+
+  def test_calculation_of_x
+    assert_equal "84d6bb567ddf584b1d8c8728289644d45dbfbb02deedd05c0f64db96740f0398",
+      "%x" % @client.send(:calculate_x)
+  end
+
+  # using python srp:
+  # s,V = pysrp.create_salted_verification_key("testuser", "password", pysrp.SHA256, pysrp.NG_1024)
+
+  def test_verifier
+    s = '4c78c3f8'
+    v = '474c26aa42d11f20544a00f7bf9711c4b5cf7aab95ed448df82b95521b96668e7480b16efce81c861870302560ddf6604c67df54f1d04b99d5bb9d0f02c6051ada5dc9d594f0d4314e12f876cfca3dcd99fc9c98c2e6a5e04298b11061fb8549a22cde0564e91514080df79bca1c38c682214d65d590f66b3719f954b078b83c'
+    @client = SRP::Client.new(@login, @password, s)
+    assert_equal v, "%x" % @client.verifier
+  end
+end
+
+
+
diff --git a/test/util_test.rb b/test/util_test.rb
new file mode 100644
index 0000000..9b1d09b
--- /dev/null
+++ b/test/util_test.rb
@@ -0,0 +1,33 @@
+require File.expand_path(File.dirname(__FILE__) + '/test_helper')
+
+class UtilTest < Test::Unit::TestCase
+
+  include SRP::Util
+
+  # comparing to the hash created with python srp lib to make sure
+  # we use the same constants and hash the same way.
+  def test_sha256_of_prime
+    n = BIG_PRIME_N
+    nhex = '%x' % [n]
+    assert_equal "494b6a801b379f37c9ee25d5db7cd70ffcfe53d01b7c9e4470eaca46bda24b39",
+      sha256_hex(nhex)
+  end
+
+  def test_hashing
+    x = sha256_str("testuser:password")
+    assert_equal 'a5376a27a385bcd791d76cbd6484e1bde130129210e4647a4583e49f45de107f',
+      x
+  end
+
+  def test_packing_hex_to_byte_string
+    shex = "7686acb8"
+    assert_equal [118, 134, 172, 184].pack('C*'), [shex].pack('H*')
+  end
+
+  def test_multiplier
+    # >>> "%x" % pysrp.H(sha, N, g)
+    assert_equal 'bf66c44a428916cad64aa7c679f3fd897ad4c375e9bbb4cbf2f5de241d618ef0',
+      "%x" % multiplier
+  end
+
+end
-- 
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