Binary package “libcommons-codec-java” in ubuntu precise

encoder and decoders such as Base64 and hexadecimal codec

 The codec package contains simple encoder and decoders for various
 formats such as Base64 and Hexadecimal. In addition to these widely
 used encoders and decoders, the codec package also maintains a
 collection of phonetic encoding utilities.
 This is a part of the Apache Commons Project.