CHANGES

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