50 lines
2.1 KiB
Plaintext
50 lines
2.1 KiB
Plaintext
This is the distribution tar file for the cryptography add-on to the
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GNU C library. For the version number, see the file "Banner".
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The add-on is not included in the main distribution of the GNU C
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library because some governments, most notably those of France,
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Russia, and the US, have very restrictive rules governing the
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distribution and use of encryption software. Please read the node
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"Legal Problems" in the manual for more details.
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In particular, the US does not allow export of this software without a
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licence, including via the Internet. So please do not download it
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from the main FSF FTP site at ftp.gnu.org if you are outside
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the US. This software was completely developed outside the US.
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To install the add-on, unpack the tar file in the top level of the GNU
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C library distribution. Then build GNU C library like this:
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configure --enable-add-ons
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make
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make install
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It is not presently possible to add the add-on to the GNU C library
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without recompiling the GNU C library.
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The additional functionality provided by the add-on consists of:
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* DES-based crypt(). This is only for backwards compatibility;
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for new installations the MD5-based crypt(), provided with the main
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GNU C library distribution, should be used instead.
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* The AUTH_DES RPC authentication method. In a given situation, this
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may be more or less secure than the AUTH_UNIX authentication method
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which is provided with the main GNU C library distribution.
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* User-visible DES encryption routines. Note that DES by itself is
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not now considered a very secure encryption method.
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The add-on also includes a manual, the file "crypt.texi". The manual
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will be integrated with the GNU C library manual when the GNU C
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library is installed.
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Report bugs in this library (or its manual) in the same way as for the
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GNU C library; that is, using the `glibcbug' shell script to send
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e-mail to <bugs@gnu.org>. Simply run this shell script and fill in
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the information. Nevertheless you can still send bug reports to
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<bug-glibc@gnu.org> as normal electronic mails.
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The add-on is free software. See the file COPYING.LIB for copying
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conditions.
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