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 OpenSSL CHANGES
 Changes between 0.9.6d and 0.9.7  [XX xxx 2002]
  *) Fix escaping of non-ASCII characters when using the -subj option
     of the "openssl req" command line tool. (Robert Joop <joop@fokus.gmd.de>)
     [Lutz Jaenicke]

  *) Make object definitions compliant to LDAP (RFC2256): SN is the short
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     form for "surname", serialNumber has no short form.
     Use "mail" as the short name for "rfc822Mailbox" according to RFC2798;
     therefore remove "mail" short name for "internet 7".
     Some more OID additions. (Michael Bell <michael.bell@rz.hu-berlin.de>)
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     [Lutz Jaenicke]
  *) Add an "init" command to the ENGINE config module and auto initialize
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     ENGINEs. Without any "init" command the ENGINE will be initialized 
     after all ctrl commands have been executed on it. If init=1 the 
     ENGINE is initailized at that point (ctrls before that point are run
     on the uninitialized ENGINE and after on the initialized one). If
     init=0 then the ENGINE will not be iniatialized at all.
     [Steve Henson]

  *) Fix the 'app_verify_callback' interface so that the user-defined
     argument is actually passed to the callback: In the
     SSL_CTX_set_cert_verify_callback() prototype, the callback
     declaration has been changed from
          int (*cb)()
     into
          int (*cb)(X509_STORE_CTX *,void *);
     in ssl_verify_cert_chain (ssl/ssl_cert.c), the call
          i=s->ctx->app_verify_callback(&ctx)
     has been changed into
          i=s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg).

     To update applications using SSL_CTX_set_cert_verify_callback(),
     a dummy argument can be added to their callback functions.
     [D. K. Smetters <smetters@parc.xerox.com>]

  *) Added the '4758cca' ENGINE to support IBM 4758 cards.
     [Maurice Gittens <maurice@gittens.nl>, touchups by Geoff Thorpe]

  *) Add and OPENSSL_LOAD_CONF define which will cause
     OpenSSL_add_all_algorithms() to load the openssl.cnf config file.
     This allows older applications to transparently support certain
     OpenSSL features: such as crypto acceleration and dynamic ENGINE loading.
     Two new functions OPENSSL_add_all_algorithms_noconf() which will never
     load the config file and OPENSSL_add_all_algorithms_conf() which will
     always load it have also been added.
     [Steve Henson]

  *) Add the OFB, CFB and CTR (all with 128 bit feedback) to AES.
     Adjust NIDs and EVP layer.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

  *) Config modules support in openssl utility.
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     Most commands now load modules from the config file,
     though in a few (such as version) this isn't done 
     because it couldn't be used for anything.

     In the case of ca and req the config file used is
     the same as the utility itself: that is the -config
     command line option can be used to specify an
     alternative file.
     [Steve Henson]

  *) Move default behaviour from OPENSSL_config(). If appname is NULL
     use "openssl_conf" if filename is NULL use default openssl config file.
     [Steve Henson]

  *) Add an argument to OPENSSL_config() to allow the use of an alternative
     config section name. Add a new flag to tolerate a missing config file
     and move code to CONF_modules_load_file().
     [Steve Henson]

  *) Support for crypto accelerator cards from Accelerated Encryption
     Processing, www.aep.ie.  (Use engine 'aep')
     The support was copied from 0.9.6c [engine] and adapted/corrected
     to work with the new engine framework.
     [AEP Inc. and Richard Levitte]

  *) Support for SureWare crypto accelerator cards from Baltimore
     Technologies.  (Use engine 'sureware')
     The support was copied from 0.9.6c [engine] and adapted
     to work with the new engine framework.
     [Richard Levitte]

  *) Have the CHIL engine fork-safe (as defined by nCipher) and actually
     make the newer ENGINE framework commands for the CHIL engine work.
     [Toomas Kiisk <vix@cyber.ee> and Richard Levitte]

  *) Make it possible to produce shared libraries on ReliantUNIX.
     [Robert Dahlem <Robert.Dahlem@ffm2.siemens.de> via Richard Levitte]

  *) Add the configuration target debug-linux-ppro.
     Make 'openssl rsa' use the general key loading routines
     implemented in apps.c, and make those routines able to
     handle the key format FORMAT_NETSCAPE and the variant
     FORMAT_IISSGC.
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

 *) Fix a crashbug and a logic bug in hwcrhk_load_pubkey().
     [Toomas Kiisk <vix@cyber.ee> via Richard Levitte]

  *) Add -keyform to rsautl, and document -engine.
     [Richard Levitte, inspired by Toomas Kiisk <vix@cyber.ee>]

  *) Change BIO_new_file (crypto/bio/bss_file.c) to use new
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     BIO_R_NO_SUCH_FILE error code rather than the generic
     ERR_R_SYS_LIB error code if fopen() fails with ENOENT.
     [Ben Laurie]

  *) Add new functions
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          ERR_peek_last_error
          ERR_peek_last_error_line
          ERR_peek_last_error_line_data.
     These are similar to
          ERR_peek_error
          ERR_peek_error_line
          ERR_peek_error_line_data,
     but report on the latest error recorded rather than the first one
     still in the error queue.
     [Ben Laurie, Bodo Moeller]
        
  *) default_algorithms option in ENGINE config module. This allows things
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     like:
     default_algorithms = ALL
     default_algorithms = RSA, DSA, RAND, CIPHERS, DIGESTS
     [Steve Henson]

  *) Prelminary ENGINE config module.
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     [Steve Henson]

  *) New experimental application configuration code.
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     [Steve Henson]

  *) Change the AES code to follow the same name structure as all other
     symmetric ciphers, and behave the same way.  Move everything to
     the directory crypto/aes, thereby obsoleting crypto/rijndael.
     [Stephen Sprunk <stephen@sprunk.org> and Richard Levitte]

  *) SECURITY: remove unsafe setjmp/signal interaction from ui_openssl.c.
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     [Ben Laurie and Theo de Raadt]

  *) Add option to output public keys in req command.
     [Massimiliano Pala madwolf@openca.org]

  *) Use wNAFs in EC_POINTs_mul() for improved efficiency
     (up to about 10% better than before for P-192 and P-224).
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     [Bodo Moeller]

  *) New functions/macros

          SSL_CTX_set_msg_callback(ctx, cb)
          SSL_CTX_set_msg_callback_arg(ctx, arg)
          SSL_set_msg_callback(ssl, cb)
          SSL_set_msg_callback_arg(ssl, arg)

     to request calling a callback function

          void cb(int write_p, int version, int content_type,
                  const void *buf, size_t len, SSL *ssl, void *arg)

     whenever a protocol message has been completely received
     (write_p == 0) or sent (write_p == 1).  Here 'version' is the
     protocol version  according to which the SSL library interprets
     the current protocol message (SSL2_VERSION, SSL3_VERSION, or
     TLS1_VERSION).  'content_type' is 0 in the case of SSL 2.0, or
     the content type as defined in the SSL 3.0/TLS 1.0 protocol
     specification (change_cipher_spec(20), alert(21), handshake(22)).
     'buf' and 'len' point to the actual message, 'ssl' to the
     SSL object, and 'arg' is the application-defined value set by
     SSL[_CTX]_set_msg_callback_arg().

     'openssl s_client' and 'openssl s_server' have new '-msg' options
     to enable a callback that displays all protocol messages.
     [Bodo Moeller]

  *) Change the shared library support so shared libraries are built as
     soon as the corresponding static library is finished, and thereby get
     openssl and the test programs linked against the shared library.
     This still only happens when the keyword "shard" has been given to
     the configuration scripts.

     NOTE: shared library support is still an experimental thing, and
     backward binary compatibility is still not guaranteed.
     ["Maciej W. Rozycki" <macro@ds2.pg.gda.pl> and Richard Levitte]

  *) Add support for Subject Information Access extension.
     [Peter Sylvester <Peter.Sylvester@EdelWeb.fr>]

  *) Make BUF_MEM_grow() behaviour more consistent: Initialise to zero
     additional bytes when new memory had to be allocated, not just
     when reusing an existing buffer.
     [Bodo Moeller]

  *) New command line and configuration option 'utf8' for the req command.
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