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yokolet/HMAC_test.rb

Last active August 29, 2015 14:07
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HMAC_test.rb
KS = Java::JavaxCryptoSpec::SecretKeySpec
MAC = Java::JavaxCrypto::Mac
ENCODER = Java::SunMisc::BASE64Encoder
seed = "66fbcbf2-74b8-46bf-bf8a-fe925efaaa18-Tue Oct 07 09:04:49 EDT 2014"
secret_key = SKS.new(seed.to_java_bytes, "HmacSHA256")
msg = "[12345]".to_java_bytes
buf = Java::JavaIo::ByteArrayOutputStream.new
buf.write(msg, 0, msg.length)
mac = MAC.getInstance("HmacSHA256")
mac.init(secret_key)
bbuf = Java::JavaNio::ByteBuffer.wrap(buf.toByteArray)
result = bbuf.duplicate
mac.update(result)
hmac = mac.doFinal
encoder = ENCODER.new
puts encoder.encode(hmac)
## 8110nQFYfylC27BjDRZbq5S06+/s4ewnFoJKbmK5D44=
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