CHANGES

   1
   2  OpenSSL CHANGES
   3  _______________
   4
   5
   6  Changes between 0.9.2b and 0.9.3
   7
   8   *) Add code to allow r2i extensions to access the configuration database,
   9      add an LHASH database driver and add several ctx helper functions.
  10      [Steve Henson]
  11
  12   *) Fix an evil bug in bn_expand2() which caused various BN functions to
  13      fail when they extended the size of a BIGNUM.
  14      [Steve Henson]
  15
  16   *) Various utility functions to handle SXNet extension. Modify mkdef.pl to
  17      support typesafe stack.
  18      [Steve Henson]
  19
  20   *) Fix typo in SSL_[gs]et_options().
  21      [Nils Frostberg <nils@medcom.se>]
  22
  23   *) Delete various functions and files that belonged to the (now obsolete)
  24      old X509V3 handling code.
  25      [Steve Henson]
  26
  27   *) New Configure option "rsaref".
  28      [Ulf Möller]
  29
  30   *) Don't auto-generate pem.h.
  31      [Bodo Moeller]
  32
  33   *) Introduce type-safe ASN.1 SETs.
  34      [Ben Laurie]
  35
  36   *) Introduce type-safe STACKs. This will almost certainly break lots of code
  37      that links with OpenSSL (well at least cause lots of warnings), but fear
  38      not: the conversion is trivial, and it eliminates loads of evil casts. A
  39      few STACKed things have been converted already. Feel free to convert more.
  40      In the fullness of time, I'll do away with the STACK type altogether.
  41      [Ben Laurie]
  42
  43   *) Add `openssl ca -revoke <certfile>' facility which revokes a certificate
  44      specified in <certfile> by updating the entry in the index.txt file.
  45      This way one no longer has to edit the index.txt file manually for
  46      revoking a certificate. The -revoke option does the gory details now.
  47      [Massimiliano Pala <madwolf@openca.org>, Ralf S. Engelschall]
  48
  49   *) Fix `openssl crl -noout -text' combination where `-noout' killed the
  50      `-text' option at all and this way the `-noout -text' combination was
  51      inconsistent in `openssl crl' with the friends in `openssl x509|rsa|dsa'.
  52      [Ralf S. Engelschall]
  53
  54   *) Make sure a corresponding plain text error message exists for the
  55      X509_V_ERR_CERT_REVOKED/23 error number which can occur when a
  56      verify callback function determined that a certificate was revoked.
  57      [Ralf S. Engelschall]
  58
  59   *) Bugfix: In test/testenc, don't test "openssl <cipher>" for
  60      ciphers that were excluded, e.g. by -DNO_IDEA.  Also, test
  61      all available cipers including rc5, which was forgotten until now.
  62      In order to let the testing shell script know which algorithms
  63      are available, a new (up to now undocumented) command
  64      "openssl list-cipher-commands" is used.
  65      [Bodo Moeller]
  66
  67   *) Bugfix: s_client occasionally would sleep in select() when
  68      it should have checked SSL_pending() first.
  69      [Bodo Moeller]
  70
  71   *) New functions DSA_do_sign and DSA_do_verify to provide access to
  72      the raw DSA values prior to ASN.1 encoding.
  73      [Ulf Möller]
  74
  75   *) Tweaks to Configure
  76      Niels Poppe <niels@netbox.org>
  77
  78   *) Add support for PKCS#5 v2.0 ASN1 PBES2 structures. No other support,
  79      yet...
  80      [Steve Henson]
  81
  82   *) New variables $(RANLIB) and $(PERL) in the Makefiles.
  83      [Ulf Möller]
  84
  85   *) New config option to avoid instructions that are illegal on the 80386.
  86      The default code is faster, but requires at least a 486.
  87      [Ulf Möller]
  88
  89   *) Got rid of old SSL2_CLIENT_VERSION (inconsistently used) and
  90      SSL2_SERVER_VERSION (not used at all) macros, which are now the
  91      same as SSL2_VERSION anyway.
  92      [Bodo Moeller]
  93
  94   *) New "-showcerts" option for s_client.
  95      [Bodo Moeller]
  96
  97   *) Still more PKCS#12 integration. Add pkcs12 application to openssl
  98      application. Various cleanups and fixes.
  99      [Steve Henson]
 100
 101   *) More PKCS#12 integration. Add new pkcs12 directory with Makefile.ssl and
 102      modify error routines to work internally. Add error codes and PBE init
 103      to library startup routines.
 104      [Steve Henson]
 105
 106   *) Further PKCS#12 integration. Added password based encryption, PKCS#8 and
 107      packing functions to asn1 and evp. Changed function names and error
 108      codes along the way.
 109      [Steve Henson]
 110
 111   *) PKCS12 integration: and so it begins... First of several patches to
 112      slowly integrate PKCS#12 functionality into OpenSSL. Add PKCS#12
 113      objects to objects.h
 114      [Steve Henson]
 115
 116   *) Add a new 'indent' option to some X509V3 extension code. Initial ASN1
 117      and display support for Thawte strong extranet extension.
 118      [Steve Henson]
 119
 120   *) Add LinuxPPC support.
 121      [Jeff Dubrule <igor@pobox.org>]
 122
 123   *) Get rid of redundant BN file bn_mulw.c, and rename bn_div64 to
 124      bn_div_words in alpha.s.
 125      [Hannes Reinecke <H.Reinecke@hw.ac.uk> and Ben Laurie]
 126
 127   *) Make sure the RSA OAEP test is skipped under -DRSAref because
 128      OAEP isn't supported when OpenSSL is built with RSAref.
 129      [Ulf Moeller <ulf@fitug.de>]
 130
 131   *) Move definitions of IS_SET/IS_SEQUENCE inside crypto/asn1/asn1.h
 132      so they no longer are missing under -DNOPROTO.
 133      [Soren S. Jorvang <soren@t.dk>]
 134
 135  Changes between 0.9.1c and 0.9.2b
 136
 137   *) Make SSL_get_peer_cert_chain() work in servers. Unfortunately, it still
 138      doesn't work when the session is reused. Coming soon!
 139      [Ben Laurie]
 140
 141   *) Fix a security hole, that allows sessions to be reused in the wrong
 142      context thus bypassing client cert protection! All software that uses
 143      client certs and session caches in multiple contexts NEEDS PATCHING to
 144      allow session reuse! A fuller solution is in the works.
 145      [Ben Laurie, problem pointed out by Holger Reif, Bodo Moeller (and ???)]
 146
 147   *) Some more source tree cleanups (removed obsolete files
 148      crypto/bf/asm/bf586.pl, test/test.txt and crypto/sha/asm/f.s; changed
 149      permission on "config" script to be executable) and a fix for the INSTALL
 150      document.
 151      [Ulf Moeller <ulf@fitug.de>]
 152
 153   *) Remove some legacy and erroneous uses of malloc, free instead of
 154      Malloc, Free.
 155      [Lennart Bang <lob@netstream.se>, with minor changes by Steve]
 156
 157   *) Make rsa_oaep_test return non-zero on error.
 158      [Ulf Moeller <ulf@fitug.de>]
 159
 160   *) Add support for native Solaris shared libraries. Configure
 161      solaris-sparc-sc4-pic, make, then run shlib/solaris-sc4.sh. It'd be nice
 162      if someone would make that last step automatic.
 163      [Matthias Loepfe <Matthias.Loepfe@AdNovum.CH>]
 164
 165   *) ctx_size was not built with the right compiler during "make links". Fixed.
 166      [Ben Laurie]
 167
 168   *) Change the meaning of 'ALL' in the cipher list. It now means "everything
 169      except NULL ciphers". This means the default cipher list will no longer
 170      enable NULL ciphers. They need to be specifically enabled e.g. with
 171      the string "DEFAULT:eNULL".
 172      [Steve Henson]
 173
 174   *) Fix to RSA private encryption routines: if p < q then it would
 175      occasionally produce an invalid result. This will only happen with
 176      externally generated keys because OpenSSL (and SSLeay) ensure p > q.
 177      [Steve Henson]
 178
 179   *) Be less restrictive and allow also `perl util/perlpath.pl
 180      /path/to/bin/perl' in addition to `perl util/perlpath.pl /path/to/bin',
 181      because this way one can also use an interpreter named `perl5' (which is
 182      usually the name of Perl 5.xxx on platforms where an Perl 4.x is still
 183      installed as `perl').
 184      [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
 185
 186   *) Let util/clean-depend.pl work also with older Perl 5.00x versions.
 187      [Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
 188
 189   *) Fix Makefile.org so CC,CFLAG etc are passed to 'make links' add
 190      advapi32.lib to Win32 build and change the pem test comparision
 191      to fc.exe (thanks to Ulrich Kroener <kroneru@yahoo.com> for the
 192      suggestion). Fix misplaced ASNI prototypes and declarations in evp.h
 193      and crypto/des/ede_cbcm_enc.c.
 194      [Steve Henson]
 195
 196   *) DES quad checksum was broken on big-endian architectures. Fixed.
 197      [Ben Laurie]
 198
 199   *) Comment out two functions in bio.h that aren't implemented. Fix up the
 200      Win32 test batch file so it (might) work again. The Win32 test batch file
 201      is horrible: I feel ill....
 202      [Steve Henson]
 203
 204   *) Move various #ifdefs around so NO_SYSLOG, NO_DIRENT etc are now selected
 205      in e_os.h. Audit of header files to check ANSI and non ANSI
 206      sections: 10 functions were absent from non ANSI section and not exported
 207      from Windows DLLs. Fixed up libeay.num for new functions.
 208      [Steve Henson]
 209
 210   *) Make `openssl version' output lines consistent.
 211      [Ralf S. Engelschall]
 212
 213   *) Fix Win32 symbol export lists for BIO functions: Added
 214      BIO_get_ex_new_index, BIO_get_ex_num, BIO_get_ex_data and BIO_set_ex_data
 215      to ms/libeay{16,32}.def.
 216      [Ralf S. Engelschall]
 217
 218   *) Second round of fixing the OpenSSL perl/ stuff. It now at least compiled
 219      fine under Unix and passes some trivial tests I've now added. But the
 220      whole stuff is horribly incomplete, so a README.1ST with a disclaimer was
 221      added to make sure no one expects that this stuff really works in the
 222      OpenSSL 0.9.2 release.  Additionally I've started to clean the XS sources
 223      up and fixed a few little bugs and inconsistencies in OpenSSL.{pm,xs} and
 224      openssl_bio.xs.
 225      [Ralf S. Engelschall]
 226
 227   *) Fix the generation of two part addresses in perl.
 228      [Kenji Miyake <kenji@miyake.org>, integrated by Ben Laurie]
 229
 230   *) Add config entry for Linux on MIPS.
 231      [John Tobey <jtobey@channel1.com>]
 232
 233   *) Make links whenever Configure is run, unless we are on Windoze.
 234      [Ben Laurie]
 235
 236   *) Permit extensions to be added to CRLs using crl_section in openssl.cnf.
 237      Currently only issuerAltName and AuthorityKeyIdentifier make any sense
 238      in CRLs.
 239      [Steve Henson]
 240
 241   *) Add a useful kludge to allow package maintainers to specify compiler and
 242      other platforms details on the command line without having to patch the
 243      Configure script everytime: One now can use ``perl Configure
 244      <id>:<details>'', i.e. platform ids are allowed to have details appended
 245      to them (seperated by colons). This is treated as there would be a static
 246      pre-configured entry in Configure's %table under key <id> with value
 247      <details> and ``perl Configure <id>'' is called.  So, when you want to
 248      perform a quick test-compile under FreeBSD 3.1 with pgcc and without
 249      assembler stuff you can use ``perl Configure "FreeBSD-elf:pgcc:-O6:::"''
 250      now, which overrides the FreeBSD-elf entry on-the-fly.
 251      [Ralf S. Engelschall]
 252
 253   *) Disable new TLS1 ciphersuites by default: they aren't official yet.
 254      [Ben Laurie]
 255
 256   *) Allow DSO flags like -fpic, -fPIC, -KPIC etc. to be specified
 257      on the `perl Configure ...' command line. This way one can compile
 258      OpenSSL libraries with Position Independent Code (PIC) which is needed
 259      for linking it into DSOs.
 260      [Ralf S. Engelschall]
 261
 262   *) Remarkably, export ciphers were totally broken and no-one had noticed!
 263      Fixed.
 264      [Ben Laurie]
 265
 266   *) Cleaned up the LICENSE document: The official contact for any license
 267      questions now is the OpenSSL core team under openssl-core@openssl.org.
 268      And add a paragraph about the dual-license situation to make sure people
 269      recognize that _BOTH_ the OpenSSL license _AND_ the SSLeay license apply
 270      to the OpenSSL toolkit.
 271      [Ralf S. Engelschall]
 272
 273   *) General source tree makefile cleanups: Made `making xxx in yyy...'
 274      display consistent in the source tree and replaced `/bin/rm' by `rm'.
 275      Additonally cleaned up the `make links' target: Remove unnecessary
 276      semicolons, subsequent redundant removes, inline point.sh into mklink.sh
 277      to speed processing and no longer clutter the display with confusing
 278      stuff. Instead only the actually done links are displayed.
 279      [Ralf S. Engelschall]
 280
 281   *) Permit null encryption ciphersuites, used for authentication only. It used
 282      to be necessary to set the preprocessor define SSL_ALLOW_ENULL to do this.
 283      It is now necessary to set SSL_FORBID_ENULL to prevent the use of null
 284      encryption.
 285      [Ben Laurie]
 286
 287   *) Add a bunch of fixes to the PKCS#7 stuff. It used to sometimes reorder
 288      signed attributes when verifying signatures (this would break them),
 289      the detached data encoding was wrong and public keys obtained using
 290      X509_get_pubkey() weren't freed.
 291      [Steve Henson]
 292
 293   *) Add text documentation for the BUFFER functions. Also added a work around
 294      to a Win95 console bug. This was triggered by the password read stuff: the
 295      last character typed gets carried over to the next fread(). If you were
 296      generating a new cert request using 'req' for example then the last
 297      character of the passphrase would be CR which would then enter the first
 298      field as blank.
 299      [Steve Henson]
 300
 301   *) Added the new `Includes OpenSSL Cryptography Software' button as
 302      doc/openssl_button.{gif,html} which is similar in style to the old SSLeay
 303      button and can be used by applications based on OpenSSL to show the
 304      relationship to the OpenSSL project.
 305      [Ralf S. Engelschall]
 306
 307   *) Remove confusing variables in function signatures in files
 308      ssl/ssl_lib.c and ssl/ssl.h.
 309      [Lennart Bong <lob@kulthea.stacken.kth.se>]
 310
 311   *) Don't install bss_file.c under PREFIX/include/
 312      [Lennart Bong <lob@kulthea.stacken.kth.se>]
 313
 314   *) Get the Win32 compile working again. Modify mkdef.pl so it can handle
 315      functions that return function pointers and has support for NT specific
 316      stuff. Fix mk1mf.pl and VC-32.pl to support NT differences also. Various
 317      #ifdef WIN32 and WINNTs sprinkled about the place and some changes from
 318      unsigned to signed types: this was killing the Win32 compile.
 319      [Steve Henson]
 320
 321   *) Add new certificate file to stack functions,
 322      SSL_add_dir_cert_subjects_to_stack() and
 323      SSL_add_file_cert_subjects_to_stack().  These largely supplant
 324      SSL_load_client_CA_file(), and can be used to add multiple certs easily
 325      to a stack (usually this is then handed to SSL_CTX_set_client_CA_list()).
 326      This means that Apache-SSL and similar packages don't have to mess around
 327      to add as many CAs as they want to the preferred list.
 328      [Ben Laurie]
 329
 330   *) Experiment with doxygen documentation. Currently only partially applied to
 331      ssl/ssl_lib.c.
 332      See http://www.stack.nl/~dimitri/doxygen/index.html, and run doxygen with
 333      openssl.doxy as the configuration file.
 334      [Ben Laurie]
 335
 336   *) Get rid of remaining C++-style comments which strict C compilers hate.
 337      [Ralf S. Engelschall, pointed out by Carlos Amengual]
 338
 339   *) Changed BN_RECURSION in bn_mont.c to BN_RECURSION_MONT so it is not
 340      compiled in by default: it has problems with large keys.
 341      [Steve Henson]
 342
 343   *) Add a bunch of SSL_xxx() functions for configuring the temporary RSA and
 344      DH private keys and/or callback functions which directly correspond to
 345      their SSL_CTX_xxx() counterparts but work on a per-connection basis. This
 346      is needed for applications which have to configure certificates on a
 347      per-connection basis (e.g. Apache+mod_ssl) instead of a per-context basis
 348      (e.g. s_server).
 349         For the RSA certificate situation is makes no difference, but
 350      for the DSA certificate situation this fixes the "no shared cipher"
 351      problem where the OpenSSL cipher selection procedure failed because the
 352      temporary keys were not overtaken from the context and the API provided
 353      no way to reconfigure them.
 354         The new functions now let applications reconfigure the stuff and they
 355      are in detail: SSL_need_tmp_RSA, SSL_set_tmp_rsa, SSL_set_tmp_dh,
 356      SSL_set_tmp_rsa_callback and SSL_set_tmp_dh_callback.  Additionally a new
 357      non-public-API function ssl_cert_instantiate() is used as a helper
 358      function and also to reduce code redundancy inside ssl_rsa.c.
 359      [Ralf S. Engelschall]
 360
 361   *) Move s_server -dcert and -dkey options out of the undocumented feature
 362      area because they are useful for the DSA situation and should be
 363      recognized by the users.
 364      [Ralf S. Engelschall]
 365
 366   *) Fix the cipher decision scheme for export ciphers: the export bits are
 367      *not* within SSL_MKEY_MASK or SSL_AUTH_MASK, they are within
 368      SSL_EXP_MASK.  So, the original variable has to be used instead of the
 369      already masked variable.
 370      [Richard Levitte <levitte@stacken.kth.se>]
 371
 372   *) Fix 'port' variable from `int' to `unsigned int' in crypto/bio/b_sock.c
 373      [Richard Levitte <levitte@stacken.kth.se>]
 374
 375   *) Change type of another md_len variable in pk7_doit.c:PKCS7_dataFinal()
 376      from `int' to `unsigned int' because it's a length and initialized by
 377      EVP_DigestFinal() which expects an `unsigned int *'.
 378      [Richard Levitte <levitte@stacken.kth.se>]
 379
 380   *) Don't hard-code path to Perl interpreter on shebang line of Configure
 381      script. Instead use the usual Shell->Perl transition trick.
 382      [Ralf S. Engelschall]
 383
 384   *) Make `openssl x509 -noout -modulus' functional also for DSA certificates
 385      (in addition to RSA certificates) to match the behaviour of `openssl dsa
 386      -noout -modulus' as it's already the case for `openssl rsa -noout
 387      -modulus'.  For RSA the -modulus is the real "modulus" while for DSA
 388      currently the public key is printed (a decision which was already done by
 389      `openssl dsa -modulus' in the past) which serves a similar purpose.
 390      Additionally the NO_RSA no longer completely removes the whole -modulus
 391      option; it now only avoids using the RSA stuff. Same applies to NO_DSA
 392      now, too.
 393      [Ralf S.  Engelschall]
 394
 395   *) Add Arne Ansper's reliable BIO - this is an encrypted, block-digested
 396      BIO. See the source (crypto/evp/bio_ok.c) for more info.
 397      [Arne Ansper <arne@ats.cyber.ee>]
 398
 399   *) Dump the old yucky req code that tried (and failed) to allow raw OIDs
 400      to be added. Now both 'req' and 'ca' can use new objects defined in the
 401      config file.
 402      [Steve Henson]
 403
 404   *) Add cool BIO that does syslog (or event log on NT).
 405      [Arne Ansper <arne@ats.cyber.ee>, integrated by Ben Laurie]
 406
 407   *) Add support for new TLS ciphersuites, TLS_RSA_EXPORT56_WITH_RC4_56_MD5,
 408      TLS_RSA_EXPORT56_WITH_RC2_CBC_56_MD5 and
 409      TLS_RSA_EXPORT56_WITH_DES_CBC_SHA, as specified in "56-bit Export Cipher
 410      Suites For TLS", draft-ietf-tls-56-bit-ciphersuites-00.txt.
 411      [Ben Laurie]
 412
 413   *) Add preliminary config info for new extension code.
 414      [Steve Henson]
 415
 416   *) Make RSA_NO_PADDING really use no padding.
 417      [Ulf Moeller <ulf@fitug.de>]
 418
 419   *) Generate errors when private/public key check is done.
 420      [Ben Laurie]
 421
 422   *) Overhaul for 'crl' utility. New function X509_CRL_print. Partial support
 423      for some CRL extensions and new objects added.
 424      [Steve Henson]
 425
 426   *) Really fix the ASN1 IMPLICIT bug this time... Partial support for private
 427      key usage extension and fuller support for authority key id.
 428      [Steve Henson]
 429
 430   *) Add OAEP encryption for the OpenSSL crypto library. OAEP is the improved
 431      padding method for RSA, which is recommended for new applications in PKCS
 432      #1 v2.0 (RFC 2437, October 1998).
 433      OAEP (Optimal Asymmetric Encryption Padding) has better theoretical
 434      foundations than the ad-hoc padding used in PKCS #1 v1.5. It is secure
 435      against Bleichbacher's attack on RSA.
 436      [Ulf Moeller <ulf@fitug.de>, reformatted, corrected and integrated by
 437       Ben Laurie]
 438
 439   *) Updates to the new SSL compression code
 440      [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
 441
 442   *) Fix so that the version number in the master secret, when passed
 443      via RSA, checks that if TLS was proposed, but we roll back to SSLv3
 444      (because the server will not accept higher), that the version number
 445      is 0x03,0x01, not 0x03,0x00
 446      [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
 447
 448   *) Run extensive memory leak checks on SSL apps. Fixed *lots* of memory
 449      leaks in ssl/ relating to new X509_get_pubkey() behaviour. Also fixes
 450      in apps/ and an unrelated leak in crypto/dsa/dsa_vrf.c
 451      [Steve Henson]
 452
 453   *) Support for RAW extensions where an arbitrary extension can be
 454      created by including its DER encoding. See apps/openssl.cnf for
 455      an example.
 456      [Steve Henson]
 457
 458   *) Make sure latest Perl versions don't interpret some generated C array
 459      code as Perl array code in the crypto/err/err_genc.pl script.
 460      [Lars Weber <3weber@informatik.uni-hamburg.de>]
 461
 462   *) Modify ms/do_ms.bat to not generate assembly language makefiles since
 463      not many people have the assembler. Various Win32 compilation fixes and
 464      update to the INSTALL.W32 file with (hopefully) more accurate Win32
 465      build instructions.
 466      [Steve Henson]
 467
 468   *) Modify configure script 'Configure' to automatically create crypto/date.h
 469      file under Win32 and also build pem.h from pem.org. New script
 470      util/mkfiles.pl to create the MINFO file on environments that can't do a
 471      'make files': perl util/mkfiles.pl >MINFO should work.
 472      [Steve Henson]
 473
 474   *) Major rework of DES function declarations, in the pursuit of correctness
 475      and purity. As a result, many evil casts evaporated, and some weirdness,
 476      too. You may find this causes warnings in your code. Zapping your evil
 477      casts will probably fix them. Mostly.
 478      [Ben Laurie]
 479
 480   *) Fix for a typo in asn1.h. Bug fix to object creation script
 481      obj_dat.pl. It considered a zero in an object definition to mean
 482      "end of object": none of the objects in objects.h have any zeros
 483      so it wasn't spotted.
 484      [Steve Henson, reported by Erwann ABALEA <eabalea@certplus.com>]
 485
 486   *) Add support for Triple DES Cipher Block Chaining with Output Feedback
 487      Masking (CBCM). In the absence of test vectors, the best I have been able
 488      to do is check that the decrypt undoes the encrypt, so far. Send me test
 489      vectors if you have them.
 490      [Ben Laurie]
 491
 492   *) Correct calculation of key length for export ciphers (too much space was
 493      allocated for null ciphers). This has not been tested!
 494      [Ben Laurie]
 495
 496   *) Modifications to the mkdef.pl for Win32 DEF file creation. The usage
 497      message is now correct (it understands "crypto" and "ssl" on its
 498      command line). There is also now an "update" option. This will update
 499      the util/ssleay.num and util/libeay.num files with any new functions.
 500      If you do a:
 501      perl util/mkdef.pl crypto ssl update
 502      it will update them.
 503      [Steve Henson]
 504
 505   *) Overhauled the Perl interface (perl/*):
 506      - ported BN stuff to OpenSSL's different BN library
 507      - made the perl/ source tree CVS-aware
 508      - renamed the package from SSLeay to OpenSSL (the files still contain
 509        their history because I've copied them in the repository)
 510      - removed obsolete files (the test scripts will be replaced
 511        by better Test::Harness variants in the future)
 512      [Ralf S. Engelschall]
 513
 514   *) First cut for a very conservative source tree cleanup:
 515      1. merge various obsolete readme texts into doc/ssleay.txt
 516      where we collect the old documents and readme texts.
 517      2. remove the first part of files where I'm already sure that we no
 518      longer need them because of three reasons: either they are just temporary
 519      files which were left by Eric or they are preserved original files where
 520      I've verified that the diff is also available in the CVS via "cvs diff
 521      -rSSLeay_0_8_1b" or they were renamed (as it was definitely the case for
 522      the crypto/md/ stuff).
 523      [Ralf S. Engelschall]
 524
 525   *) More extension code. Incomplete support for subject and issuer alt
 526      name, issuer and authority key id. Change the i2v function parameters
 527      and add an extra 'crl' parameter in the X509V3_CTX structure: guess
 528      what that's for :-) Fix to ASN1 macro which messed up
 529      IMPLICIT tag and add f_enum.c which adds a2i, i2a for ENUMERATED.
 530      [Steve Henson]
 531
 532   *) Preliminary support for ENUMERATED type. This is largely copied from the
 533      INTEGER code.
 534      [Steve Henson]
 535
 536   *) Add new function, EVP_MD_CTX_copy() to replace frequent use of memcpy.
 537      [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
 538
 539   *) Make sure `make rehash' target really finds the `openssl' program.
 540      [Ralf S. Engelschall, Matthias Loepfe <Matthias.Loepfe@adnovum.ch>]
 541
 542   *) Squeeze another 7% of speed out of MD5 assembler, at least on a P2. I'd
 543      like to hear about it if this slows down other processors.
 544      [Ben Laurie]
 545
 546   *) Add CygWin32 platform information to Configure script.
 547      [Alan Batie <batie@aahz.jf.intel.com>]
 548
 549   *) Fixed ms/32all.bat script: `no_asm' -> `no-asm'
 550      [Rainer W. Gerling <gerling@mpg-gv.mpg.de>]
 551
 552   *) New program nseq to manipulate netscape certificate sequences
 553      [Steve Henson]
 554
 555   *) Modify crl2pkcs7 so it supports multiple -certfile arguments. Fix a
 556      few typos.
 557      [Steve Henson]
 558
 559   *) Fixes to BN code.  Previously the default was to define BN_RECURSION
 560      but the BN code had some problems that would cause failures when
 561      doing certificate verification and some other functions.
 562      [Eric A. Young, (from changes to C2Net SSLeay, integrated by Mark Cox)]
 563
 564   *) Add ASN1 and PEM code to support netscape certificate sequences.
 565      [Steve Henson]
 566
 567   *) Add ASN1 and PEM code to support netscape certificate sequences.
 568      [Steve Henson]
 569
 570   *) Add several PKIX and private extended key usage OIDs.
 571      [Steve Henson]
 572
 573   *) Modify the 'ca' program to handle the new extension code. Modify
 574      openssl.cnf for new extension format, add comments.
 575      [Steve Henson]
 576
 577   *) More X509 V3 changes. Fix typo in v3_bitstr.c. Add support to 'req'
 578      and add a sample to openssl.cnf so req -x509 now adds appropriate
 579      CA extensions.
 580      [Steve Henson]
 581
 582   *) Continued X509 V3 changes. Add to other makefiles, integrate with the
 583      error code, add initial support to X509_print() and x509 application.
 584      [Steve Henson]
 585
 586   *) Takes a deep breath and start addding X509 V3 extension support code. Add
 587      files in crypto/x509v3. Move original stuff to crypto/x509v3/old. All this
 588      stuff is currently isolated and isn't even compiled yet.
 589      [Steve Henson]
 590
 591   *) Continuing patches for GeneralizedTime. Fix up certificate and CRL
 592      ASN1 to use ASN1_TIME and modify print routines to use ASN1_TIME_print.
 593      Removed the versions check from X509 routines when loading extensions:
 594      this allows certain broken certificates that don't set the version
 595      properly to be processed.
 596      [Steve Henson]
 597
 598   *) Deal with irritating shit to do with dependencies, in YAAHW (Yet Another
 599      Ad Hoc Way) - Makefile.ssls now all contain local dependencies, which
 600      can still be regenerated with "make depend".
 601      [Ben Laurie]
 602
 603   *) Spelling mistake in C version of CAST-128.
 604      [Ben Laurie, reported by Jeremy Hylton <jeremy@cnri.reston.va.us>]
 605
 606   *) Changes to the error generation code. The perl script err-code.pl
 607      now reads in the old error codes and retains the old numbers, only
 608      adding new ones if necessary. It also only changes the .err files if new
 609      codes are added. The makefiles have been modified to only insert errors
 610      when needed (to avoid needlessly modifying header files). This is done
 611      by only inserting errors if the .err file is newer than the auto generated
 612      C file. To rebuild all the error codes from scratch (the old behaviour)
 613      either modify crypto/Makefile.ssl to pass the -regen flag to err_code.pl
 614      or delete all the .err files.
 615      [Steve Henson]
 616
 617   *) CAST-128 was incorrectly implemented for short keys. The C version has
 618      been fixed, but is untested. The assembler versions are also fixed, but
 619      new assembler HAS NOT BEEN GENERATED FOR WIN32 - the Makefile needs fixing
 620      to regenerate it if needed.
 621      [Ben Laurie, reported (with fix for C version) by Jun-ichiro itojun
 622       Hagino <itojun@kame.net>]
 623
 624   *) File was opened incorrectly in randfile.c.
 625      [Ulf Möller <ulf@fitug.de>]
 626
 627   *) Beginning of support for GeneralizedTime. d2i, i2d, check and print
 628      functions. Also ASN1_TIME suite which is a CHOICE of UTCTime or
 629      GeneralizedTime. ASN1_TIME is the proper type used in certificates et
 630      al: it's just almost always a UTCTime. Note this patch adds new error
 631      codes so do a "make errors" if there are problems.
 632      [Steve Henson]
 633
 634   *) Correct Linux 1 recognition in config.
 635      [Ulf Möller <ulf@fitug.de>]
 636
 637   *) Remove pointless MD5 hash when using DSA keys in ca.
 638      [Anonymous <nobody@replay.com>]
 639
 640   *) Generate an error if given an empty string as a cert directory. Also
 641      generate an error if handed NULL (previously returned 0 to indicate an
 642      error, but didn't set one).
 643      [Ben Laurie, reported by Anonymous <nobody@replay.com>]
 644
 645   *) Add prototypes to SSL methods. Make SSL_write's buffer const, at last.
 646      [Ben Laurie]
 647
 648   *) Fix the dummy function BN_ref_mod_exp() in rsaref.c to have the correct
 649      parameters. This was causing a warning which killed off the Win32 compile.
 650      [Steve Henson]
 651
 652   *) Remove C++ style comments from crypto/bn/bn_local.h.
 653      [Neil Costigan <neil.costigan@celocom.com>]
 654
 655   *) The function OBJ_txt2nid was broken. It was supposed to return a nid
 656      based on a text string, looking up short and long names and finally
 657      "dot" format. The "dot" format stuff didn't work. Added new function
 658      OBJ_txt2obj to do the same but return an ASN1_OBJECT and rewrote
 659      OBJ_txt2nid to use it. OBJ_txt2obj can also return objects even if the
 660      OID is not part of the table.
 661      [Steve Henson]
 662
 663   *) Add prototypes to X509 lookup/verify methods, fixing a bug in
 664      X509_LOOKUP_by_alias().
 665      [Ben Laurie]
 666
 667   *) Sort openssl functions by name.
 668      [Ben Laurie]
 669
 670   *) Get the gendsa program working (hopefully) and add it to app list. Remove
 671      encryption from sample DSA keys (in case anyone is interested the password
 672      was "1234").
 673      [Steve Henson]
 674
 675   *) Make _all_ *_free functions accept a NULL pointer.
 676      [Frans Heymans <fheymans@isaserver.be>]
 677
 678   *) If a DH key is generated in s3_srvr.c, don't blow it by trying to use
 679      NULL pointers.
 680      [Anonymous <nobody@replay.com>]
 681
 682   *) s_server should send the CAfile as acceptable CAs, not its own cert.
 683      [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
 684
 685   *) Don't blow it for numeric -newkey arguments to apps/req.
 686      [Bodo Moeller <3moeller@informatik.uni-hamburg.de>]
 687
 688   *) Temp key "for export" tests were wrong in s3_srvr.c.
 689      [Anonymous <nobody@replay.com>]
 690
 691   *) Add prototype for temp key callback functions
 692      SSL_CTX_set_tmp_{rsa,dh}_callback().
 693      [Ben Laurie]
 694
 695   *) Make DH_free() tolerate being passed a NULL pointer (like RSA_free() and
 696      DSA_free()). Make X509_PUBKEY_set() check for errors in d2i_PublicKey().
 697      [Steve Henson]
 698
 699   *) X509_name_add_entry() freed the wrong thing after an error.
 700      [Arne Ansper <arne@ats.cyber.ee>]
 701
 702   *) rsa_eay.c would attempt to free a NULL context.
 703      [Arne Ansper <arne@ats.cyber.ee>]
 704
 705   *) BIO_s_socket() had a broken should_retry() on Windoze.
 706      [Arne Ansper <arne@ats.cyber.ee>]
 707
 708   *) BIO_f_buffer() didn't pass on BIO_CTRL_FLUSH.
 709      [Arne Ansper <arne@ats.cyber.ee>]
 710
 711   *) Make sure the already existing X509_STORE->depth variable is initialized
 712      in X509_STORE_new(), but document the fact that this variable is still
 713      unused in the certificate verification process.
 714      [Ralf S. Engelschall]
 715
 716   *) Fix the various library and apps files to free up pkeys obtained from
 717      X509_PUBKEY_get() et al. Also allow x509.c to handle netscape extensions.
 718      [Steve Henson]
 719
 720   *) Fix reference counting in X509_PUBKEY_get(). This makes
 721      demos/maurice/example2.c work, amongst others, probably.
 722      [Steve Henson and Ben Laurie]
 723
 724   *) First cut of a cleanup for apps/. First the `ssleay' program is now named
 725      `openssl' and second, the shortcut symlinks for the `openssl <command>'
 726      are no longer created. This way we have a single and consistent command
 727      line interface `openssl <command>', similar to `cvs <command>'.
 728      [Ralf S. Engelschall, Paul Sutton and Ben Laurie]
 729
 730   *) ca.c: move test for DSA keys inside #ifndef NO_DSA. Make pubkey
 731      BIT STRING wrapper always have zero unused bits.
 732      [Steve Henson]
 733
 734   *) Add CA.pl, perl version of CA.sh, add extended key usage OID.
 735      [Steve Henson]
 736
 737   *) Make the top-level INSTALL documentation easier to understand.
 738      [Paul Sutton]
 739
 740   *) Makefiles updated to exit if an error occurs in a sub-directory
 741      make (including if user presses ^C) [Paul Sutton]
 742
 743   *) Make Montgomery context stuff explicit in RSA data structure.
 744      [Ben Laurie]
 745
 746   *) Fix build order of pem and err to allow for generated pem.h.
 747      [Ben Laurie]
 748
 749   *) Fix renumbering bug in X509_NAME_delete_entry().
 750      [Ben Laurie]
 751
 752   *) Enhanced the err-ins.pl script so it makes the error library number
 753      global and can add a library name. This is needed for external ASN1 and
 754      other error libraries.
 755      [Steve Henson]
 756
 757   *) Fixed sk_insert which never worked properly.
 758      [Steve Henson]
 759
 760   *) Fix ASN1 macros so they can handle indefinite length construted
 761      EXPLICIT tags. Some non standard certificates use these: they can now
 762      be read in.
 763      [Steve Henson]
 764
 765   *) Merged the various old/obsolete SSLeay documentation files (doc/xxx.doc)
 766      into a single doc/ssleay.txt bundle. This way the information is still
 767      preserved but no longer messes up this directory. Now it's new room for
 768      the new set of documenation files.
 769      [Ralf S. Engelschall]
 770
 771   *) SETs were incorrectly DER encoded. This was a major pain, because they
 772      shared code with SEQUENCEs, which aren't coded the same. This means that
 773      almost everything to do with SETs or SEQUENCEs has either changed name or
 774      number of arguments.
 775      [Ben Laurie, based on a partial fix by GP Jayan <gp@nsj.co.jp>]
 776
 777   *) Fix test data to work with the above.
 778      [Ben Laurie]
 779
 780   *) Fix the RSA header declarations that hid a bug I fixed in 0.9.0b but
 781      was already fixed by Eric for 0.9.1 it seems.
 782      [Ben Laurie - pointed out by Ulf Möller <ulf@fitug.de>]
 783
 784   *) Autodetect FreeBSD3.
 785      [Ben Laurie]
 786
 787   *) Fix various bugs in Configure. This affects the following platforms:
 788      nextstep
 789      ncr-scde
 790      unixware-2.0
 791      unixware-2.0-pentium
 792      sco5-cc.
 793      [Ben Laurie]
 794
 795   *) Eliminate generated files from CVS. Reorder tests to regenerate files
 796      before they are needed.
 797      [Ben Laurie]
 798
 799   *) Generate Makefile.ssl from Makefile.org (to keep CVS happy).
 800      [Ben Laurie]
 801
 802  Changes between 0.9.1b and 0.9.1c
 803
 804   *) Added OPENSSL_VERSION_NUMBER to crypto/crypto.h and
 805      changed SSLeay to OpenSSL in version strings.
 806      [Ralf S. Engelschall]
 807
 808   *) Some fixups to the top-level documents.
 809      [Paul Sutton]
 810
 811   *) Fixed the nasty bug where rsaref.h was not found under compile-time
 812      because the symlink to include/ was missing.
 813      [Ralf S. Engelschall]
 814
 815   *) Incorporated the popular no-RSA/DSA-only patches
 816      which allow to compile a RSA-free SSLeay.
 817      [Andrew Cooke / Interrader Ldt., Ralf S. Engelschall]
 818
 819   *) Fixed nasty rehash problem under `make -f Makefile.ssl links'
 820      when "ssleay" is still not found.
 821      [Ralf S. Engelschall]
 822
 823   *) Added more platforms to Configure: Cray T3E, HPUX 11,
 824      [Ralf S. Engelschall, Beckmann <beckman@acl.lanl.gov>]
 825
 826   *) Updated the README file.
 827      [Ralf S. Engelschall]
 828
 829   *) Added various .cvsignore files in the CVS repository subdirs
 830      to make a "cvs update" really silent.
 831      [Ralf S. Engelschall]
 832
 833   *) Recompiled the error-definition header files and added
 834      missing symbols to the Win32 linker tables.
 835      [Ralf S. Engelschall]
 836
 837   *) Cleaned up the top-level documents;
 838      o new files: CHANGES and LICENSE
 839      o merged VERSION, HISTORY* and README* files a CHANGES.SSLeay
 840      o merged COPYRIGHT into LICENSE
 841      o removed obsolete TODO file
 842      o renamed MICROSOFT to INSTALL.W32
 843      [Ralf S. Engelschall]
 844
 845   *) Removed dummy files from the 0.9.1b source tree:
 846      crypto/asn1/x crypto/bio/cd crypto/bio/fg crypto/bio/grep crypto/bio/vi
 847      crypto/bn/asm/......add.c crypto/bn/asm/a.out crypto/dsa/f crypto/md5/f
 848      crypto/pem/gmon.out crypto/perlasm/f crypto/pkcs7/build crypto/rsa/f
 849      crypto/sha/asm/f crypto/threads/f ms/zzz ssl/f ssl/f.mak test/f
 850      util/f.mak util/pl/f util/pl/f.mak crypto/bf/bf_locl.old apps/f
 851      [Ralf S. Engelschall]
 852
 853   *) Added various platform portability fixes.
 854      [Mark J. Cox]
 855
 856   *) The Genesis of the OpenSSL rpject:
 857      We start with the latest (unreleased) SSLeay version 0.9.1b which Eric A.
 858      Young and Tim J. Hudson created while they were working for C2Net until
 859      summer 1998.
 860      [The OpenSSL Project]
 861
 862  Changes between 0.9.0b and 0.9.1b
 863
 864   *) Updated a few CA certificates under certs/
 865      [Eric A. Young]
 866
 867   *) Changed some BIGNUM api stuff.
 868      [Eric A. Young]
 869
 870   *) Various platform ports: OpenBSD, Ultrix, IRIX 64bit, NetBSD,
 871      DGUX x86, Linux Alpha, etc.
 872      [Eric A. Young]
 873
 874   *) New COMP library [crypto/comp/] for SSL Record Layer Compression:
 875      RLE (dummy implemented) and ZLIB (really implemented when ZLIB is
 876      available).
 877      [Eric A. Young]
 878
 879   *) Add -strparse option to asn1pars program which parses nested
 880      binary structures
 881      [Dr Stephen Henson <shenson@bigfoot.com>]
 882
 883   *) Added "oid_file" to ssleay.cnf for "ca" and "req" programs.
 884      [Eric A. Young]
 885
 886   *) DSA fix for "ca" program.
 887      [Eric A. Young]
 888
 889   *) Added "-genkey" option to "dsaparam" program.
 890      [Eric A. Young]
 891
 892   *) Added RIPE MD160 (rmd160) message digest.
 893      [Eric A. Young]
 894
 895   *) Added -a (all) option to "ssleay version" command.
 896      [Eric A. Young]
 897
 898   *) Added PLATFORM define which is the id given to Configure.
 899      [Eric A. Young]
 900
 901   *) Added MemCheck_XXXX functions to crypto/mem.c for memory checking.
 902      [Eric A. Young]
 903
 904   *) Extended the ASN.1 parser routines.
 905      [Eric A. Young]
 906
 907   *) Extended BIO routines to support REUSEADDR, seek, tell, etc.
 908      [Eric A. Young]
 909
 910   *) Added a BN_CTX to the BN library.
 911      [Eric A. Young]
 912
 913   *) Fixed the weak key values in DES library
 914      [Eric A. Young]
 915
 916   *) Changed API in EVP library for cipher aliases.
 917      [Eric A. Young]
 918
 919   *) Added support for RC2/64bit cipher.
 920      [Eric A. Young]
 921
 922   *) Converted the lhash library to the crypto/mem.c functions.
 923      [Eric A. Young]
 924
 925   *) Added more recognized ASN.1 object ids.
 926      [Eric A. Young]
 927
 928   *) Added more RSA padding checks for SSL/TLS.
 929      [Eric A. Young]
 930
 931   *) Added BIO proxy/filter functionality.
 932      [Eric A. Young]
 933
 934   *) Added extra_certs to SSL_CTX which can be used
 935      send extra CA certificates to the client in the CA cert chain sending
 936      process. It can be configured with SSL_CTX_add_extra_chain_cert().
 937      [Eric A. Young]
 938
 939   *) Now Fortezza is denied in the authentication phase because
 940      this is key exchange mechanism is not supported by SSLeay at all.
 941      [Eric A. Young]
 942
 943   *) Additional PKCS1 checks.
 944      [Eric A. Young]
 945
 946   *) Support the string "TLSv1" for all TLS v1 ciphers.
 947      [Eric A. Young]
 948
 949   *) Added function SSL_get_ex_data_X509_STORE_CTX_idx() which gives the
 950      ex_data index of the SSL context in the X509_STORE_CTX ex_data.
 951      [Eric A. Young]
 952
 953   *) Fixed a few memory leaks.
 954      [Eric A. Young]
 955
 956   *) Fixed various code and comment typos.
 957      [Eric A. Young]
 958
 959   *) A minor bug in ssl/s3_clnt.c where there would always be 4 0
 960      bytes sent in the client random.
 961      [Edward Bishop <ebishop@spyglass.com>]
 962