OpenStego is a tool for steganography. It also
supports optional encryption of data before
embedding. It uses a plugin-based architecture,
and support for various steganographic algorithms
can be added using external plugins.
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The command-line syntax was fully revamped to make
it more conventional in nature. Support for
reading a message file from stdin was added.
Support for writing a stego file to stdout was
added. Support for masked password entry on the
command-line was added.