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test_hmac.lua
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test_hmac.lua
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require 'hmac.sha2'
require 'mime' --from luasocket, for b64() and unb64()
require 'hmac.md5'
local function bintohex(s)
return (s:gsub('(.)', function(c)
return string.format('%02x', string.byte(c))
end))
end
local function hextobin(s)
return (s:gsub('(%x%x)', function(hex)
return string.char(tonumber(hex, 16))
end))
end
local function test()
--per http://tools.ietf.org/html/rfc4231
tests = {
[1] = { key = (hextobin'0b'):rep(20),
data = 'Hi There',
hmac256 = hextobin'b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7',
hmac384 = hextobin'afd03944d84895626b0825f4ab46907f15f9dadbe4101ec682aa034c7cebc59cfaea9ea9076ede7f4af152e8b2fa9cb6',
hmac512 = hextobin'87aa7cdea5ef619d4ff0b4241a1d6cb02379f4e2ce4ec2787ad0b30545e17cdedaa833b7d6b8a702038b274eaea3f4e4be9d914eeb61f1702e696c203a126854',
},
[2] = { key = 'Jefe',
data = 'what do ya want for nothing?',
hmac256 = hextobin'5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843',
hmac384 = hextobin'af45d2e376484031617f78d2b58a6b1b9c7ef464f5a01b47e42ec3736322445e8e2240ca5e69e2c78b3239ecfab21649',
hmac512 = hextobin'164b7a7bfcf819e2e395fbe73b56e0a387bd64222e831fd610270cd7ea2505549758bf75c05a994a6d034f65f8f0e6fdcaeab1a34d4a6b4b636e070a38bce737',
},
[3] = { key = (hextobin'aa'):rep(20),
data = (hextobin'dd'):rep(50),
hmac256 = hextobin'773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe',
hmac384 = hextobin'88062608d3e6ad8a0aa2ace014c8a86f0aa635d947ac9febe83ef4e55966144b2a5ab39dc13814b94e3ab6e101a34f27',
hmac512 = hextobin'fa73b0089d56a284efb0f0756c890be9b1b5dbdd8ee81a3655f83e33b2279d39bf3e848279a722c806b485a47e67c807b946a337bee8942674278859e13292fb',
},
[4] = { key = hextobin'0102030405060708090a0b0c0d0e0f10111213141516171819',
data = (hextobin'cd'):rep(50),
hmac256 = hextobin'82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b',
hmac384 = hextobin'3e8a69b7783c25851933ab6290af6ca77a9981480850009cc5577c6e1f573b4e6801dd23c4a7d679ccf8a386c674cffb',
hmac512 = hextobin'b0ba465637458c6990e5a8c5f61d4af7e576d97ff94b872de76f8050361ee3dba91ca5c11aa25eb4d679275cc5788063a5f19741120c4f2de2adebeb10a298dd',
},
[6] = { key = (hextobin'aa'):rep(131),
data = 'Test Using Larger Than Block-Size Key - Hash Key First',
hmac256 = hextobin'60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54',
hmac384 = hextobin'4ece084485813e9088d2c63a041bc5b44f9ef1012a2b588f3cd11f05033ac4c60c2ef6ab4030fe8296248df163f44952',
hmac512 = hextobin'80b24263c7c1a3ebb71493c1dd7be8b49b46d1f41b4aeec1121b013783f8f3526b56d037e05f2598bd0fd2215d6a1e5295e64f73f63f0aec8b915a985d786598',
},
[7] = { key = (hextobin'aa'):rep(131),
data = 'This is a test using a larger than block-size key and a larger than block-size data. The key needs to be hashed before being used by the HMAC algorithm.',
hmac256 = hextobin'9b09ffa71b942fcb27635fbcd5b0e944bfdc63644f0713938a7f51535c3a35e2',
hmac384 = hextobin'6617178e941f020d351e2f254e8fd32c602420feb0b8fb9adccebb82461e99c5a678cc31e799176d3860e6110c46523e',
hmac512 = hextobin'e37b6a775dc87dbaa4dfa9f96e5e3ffddebd71f8867289865df5a32d20cdc944b6022cac3c4982b10d5eeb55c3e4de15134676fb6de0446065c97440fa8c6a58',
},
}
local function asserteq(test, a,b)
print(test, a == b and 'ok' or bintohex(a) .. ' ~= ' .. bintohex(b))
end
for k,test in pairs(tests) do
print('test '..k)
assert(#test.hmac256 == 32)
asserteq(256, hmac.sha256(test.data, test.key), test.hmac256)
assert(#test.hmac384 == 48)
asserteq(384, hmac.sha384(test.data, test.key), test.hmac384)
assert(#test.hmac512 == 64)
asserteq(512, hmac.sha512(test.data, test.key), test.hmac512)
end
end
local function test_amazon()
--per amazon aws example
local message = 'GET\nwebservices.amazon.com\n/onca/xml\nAWSAccessKeyId=00000000000000000000&ItemId=0679722769&Operation=ItemLookup&ResponseGroup=ItemAttributes%2COffers%2CImages%2CReviews&Service=AWSECommerceService&Timestamp=2009-01-01T12%3A00%3A00Z&Version=2009-01-06'
local sha = hextobin'b9a1069ad38ebb31d7a6a91b542c511301a082b6f445484c3be1aa8514e1bfef' --per HashCalc
local mac = hextobin'35a71ef94dc0cf83a137bb484aa82cd6f74b0470448a359c05e0aa2f9c4df718' --per HashCalc
local key = '1234567890' --per amazon (their dummy key)
local b64_mac = 'Nace+U3Az4OhN7tISqgs1vdLBHBEijWcBeCqL5xN9xg=' --per amazon
assert(mime.b64(mac) == b64_mac) --so our b64, and HashCalc's hmac (and sha) are good
assert(mime.unb64(b64_mac) == mac) --so our unb64, and HashCalc's hmac (and sha) are good
assert(sha2.sha256(message) == sha) --so our sha256 is good
assert(hmac.sha256(message, key) == mac) --so our hmac is good
assert(mime.b64(hmac.sha256(message, key)) == b64_mac) --so our hmac is good
end
local function test_hmac_md5()
local mac = hextobin'750c783e6ab0b503eaa86e310a5db738'
assert(hmac.md5("what do ya want for nothing?", "Jefe") == mac)
end
test()
test_amazon()
test_hmac_md5()