Crypt::OpenSSL::RSA is an XS perl module designed to provide basic RSA
functionality.  It does this by providing a glue to the RSA functions
in the OpenSSL library.  In particular, it provides the following functions:

      new_public_key, new_private_key - create a key from a string
      generate_key - make a new key
      get_private_key_string - save key to a string
      get_public_key_string - save public portion of key to a string
      get_public_key_x509_string - save public portion of key to a string,
                                   using format compatibe with OpenSSL's
                                   command-line rsa tool
      encrypt, decrypt, sign, verify,
      use_pkcs1_oaep_padding, use_pkcs1_padding,
      use_sslv23_padding, use_no_padding
      use_md5_hash, use_sha1_hash, use_ripemd160_hash
      size - Returns the size, in bytes, of the key.
      check_key - checks the validity of a key.

Bugs:
 There is a small memory leak when generating new keys of more than 512 bits.

 The openssl functions RSA_public_decrypt, RSA_private_decrypt are
 not yet implemented.

 There is no Crypt::CBC support.

 (Reported by Max Baker <[email protected]>) For making under Redhat 8
 or 9 you may need to supply the include path to the kerberos header
 files when running make

   make C_INCLUDE_PATH=/usr/kerberos/include


NOTE: as of version 0.17, the following methods are DEPRECATED:
 - the no-arg new constructor - use new_from_public_key,
   new_from_private_key or Crypt::OpenSSL::RSA->generate_key instead
 - load_public_key - use new_from_public_key
 - load_private_key - use new_from_private_key
 - generate_key as an instance method - use it as a class constructor
   method instead.
 - set_padding_mode - use use_no_padding, use_pkcs1_padding,
   use_pkcs1_oaep_padding, or use_sslv23_padding instead.
 - get_padding_mode

While I plan a grace period of several months at least before removing
these methods, they will go away, so you should start migrating your
code now.  Of course, I am open to arguments why some or all of these
methods should be kept around longer/permanently; feel free to send
email to me at [email protected], or visit
http://perl-openssl.sourceforge.net/.

Copyright (c) 2001-2004 Ian Robertson.  Crypt::OpenSSL::RSA is free
software; you may redistribute it and/or modify it under the same
terms as Perl itself.

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