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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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