The term immigration and naturalization service is identified in base64 scheme by the sequence aW1taWdyYXRpb24gYW5kIG5hdHVyYWxpemF0aW9uIHNlcnZpY2U=, while the MD5 signature is equal to 4b7f0967e794e6b7f030230f0def4bd2. The ASCII encoding of immigration and naturalization service in hexadecimal notation is 696d6d6967726174696f6e20616e64206e61747572616c697a6174696f6e2073657276696365.