The term trigonometric function is identified in base64 scheme by the sequence dHJpZ29ub21ldHJpYyBmdW5jdGlvbg==, while the MD5 signature is equal to d66f4f19f8d31f2ed2136b31edab3fb3. The ASCII encoding of trigonometric function in hexadecimal notation is 747269676f6e6f6d65747269632066756e6374696f6e.